Sheet Metal Fabrication Services

Quick, Reliable, and Cost-Effective

What is sheet metal fabrication?

Sheet metal fabrication involves shaping metal sheets according to the desired shape via various manufacturing methods, which usually take many steps to complete a product.

At Okdor, we specialize in high-precision sheet metal fabrication services tailored to your exact specifications. With industry-leading turnaround times and a commitment to quality, we ensure your custom metal parts meet the highest standards. Discover our range of materials and finishes designed to suit your project needs.

How okdor Sheet Metal Fabrication Works

At okdor, we transform your designs into reality. Our process is designed to deliver high-quality, custom sheet metal parts that meet your exact specifications. Here’s how we make it happen

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Receiving Designs

Your journey with us begins when you send us your CAD files or drawings. Our team meticulously reviews these designs to fully understand your requirements.

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Quotation

We then provide a detailed quote, ensuring transparency and clarity right from the start. This includes the cost of materials, manufacturing, and any additional services you require.

nickel plated cast stacked

Material Selection

With the quote approved, we select the best material for your part, considering the design requirements and the part’s intended use.

laser cutting a sheet metal, close up you can see the cutting structure of the plate.

Cutting Sheet Metal

Our high-precision laser cutting technology allows us to make extremely accurate cuts, even for complex shapes and designs. It’s our go-to method for most projects due to its precision, versatility, and cost-effectiveness.

Hydraulic bending

Forming Sheet Metal

We bring your designs to life. Using advanced techniques  precision bending, we shape the material into your part.

man with rivet gun working on a riveting work

Joining Sheet Metal

If your part consists of multiple pieces, we join them together using methods like welding or riveting. If assembly is required, we handle that too.

powder coating in orange color

Surface Finishing

Each part undergoes finishing processes to enhance its appearance and durability. This could include grinding, polishing, or applying a protective coating.

part inspection operating by CMM

Inspection

We ensure that every part we produce meets our high standards and your specifications. Each part is thoroughly inspected for accuracy, consistency, and integrity.

shipment picture in how-to banner

Delivery

We carefully package and deliver the parts to your specified location. You can trust that your parts will arrive on time and in perfect condition.

Receiving Designs

At Okdor, we make it easy for you to kickstart your custom sheet metal fabrication project. Whether you have a detailed CAD file or a simple sketch, we’re ready to turn your ideas into reality.

You can send us your designs directly at sales@okdor.com or via our ‘Get a Quote‘ page. We accept a wide range of file types to make the process as convenient as possible for you. Whether it’s

  • .STEP
  • .IGES
  • .DWG
  • .DXF
  • .sldprt
  • .PDF
 
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we’ve got you covered. Don’t wait – start your journey with Okdor today and take the first step towards high-quality, custom sheet metal parts.

Quotation

quotation icon

Tired of hidden costs and surprise charges in your sheet metal fabrication projects? 

okdor is the solution. Once we’ve reviewed your designs, we provide a detailed quote that includes the cost of materials, manufacturing, and any additional services you require.

Our quotations are designed to provide you with a clear understanding of the costs involved, ensuring there are no surprises down the line.

Material Selection

Tailored to Your Needs

Struggling to find the right material for your custom sheet metal parts? okdor is the solution. Once the quote is approved, we carefully select the best material for your part, considering the design requirements and the part’s intended use.

Our extensive range of materials ensures that we can cater to a wide variety of needs, delivering parts that are not only high-quality but also perfectly suited to your specific requirements.

stack sheet metal fine parts

Available Materials for Sheet Metal Fabrication

Choose from over 30 materials, including stainless steel, aluminum, and copper, to find the perfect fit for your project. Each material is carefully selected to ensure durability and performance. If custom material is needed, please get in touch with sales@okdor.com

Aluminum 2024-T30.64
Aluminum 5052 H320.51, 0.64, 0.81, 1.02, 1.27, 1.60, 2.03, 2.29, 2.54, 3.18, 4.06, 4.78, 6.35, 9.53, 12.70
Aluminum 6061 T60.41, 0.51, 0.64, 0.81, 1.02, 1.27, 1.60, 2.03, 2.29, 2.54, 3.18, 4.06, 4.83, 6.35, 7.94, 9.53, 12.70, 15.88, 19.05, 22.23, 25.40
Aluminum 7075 T60.64, 0.81, 1.02, 1.27, 1.60, 1.80, 2.03, 2.29, 2.54, 3.18, 4.06, 4.83, 6.35, 9.53, 12.70, 15.88, 19.05, 25.40
Aluminum MIC66.35, 9.53, 12.70, 19.05
Pre-Anodized 6061-T6, Black1.60, 3.18, 6.35, 9.53, 12.70
Brass 2600.13, 0.25, 0.41, 0.51, 0.64, 0.81, 1.02, 1.27, 1.60, 2.03, 2.36, 3.18, 4.78, 6.35
Brass 353 H021.60, 3.18, 3.81
Brass 464 H010.81, 1.02, 1.60, 2.03
Bearing Bronze 932 M076.35
Bronze 220 H020.51, 0.81, 1.02, 1.27, 1.63, 2.03, 2.29, 3.18
Bronze 510 H08 (spring)0.13, 0.20, 0.25, 0.41, 0.51, 0.81, 1.02, 1.27, 1.63, 2.29, 3.18
Silicon Bronze 6551.60
Copper 101, H00 to H010.64, 0.81, 1.02, 1.27, 1.60
Copper 110, Annealed0.13, 0.25, 0.53, 1.09, 1.60, 2.36, 3.18
Copper 110, H010.41
Copper 110, H020.51, 1.02, 1.27, 1.60, 2.03, 2.36, 3.18, 4.78, 6.35
Nickel 200, annealed0.48, 1.58
Nickel 625, annealed0.51, 0.81, 1.02, 1.27, 1.60
Stainless Steel 17-4 PH, annealed0.46, 0.81, 1.02
Stainless Steel 17-7 shim, hardened0.10, 0.13, 0.25, 0.51, 0.79
Stainless Steel 301, spring temper0.13, 0.15, 0.25, 0.31, 0.38, 0.46, 0.51, 0.79, 1.07, 1.22, 1.50
Stainless Steel 3040.46, 0.61, 0.76, 0.91, 1.22, 1.52, 1.91, 2.67, 3.05, 4.78, 6.35, 7.94, 9.53, 12.70, 15.88, 19.05, 25.40
Stainless Steel 304 shim, hardened0.13, 0.15, 0.25, 0.31, 0.38, 0.51, 0.64
Stainless Steel 304, #4 brushed0.61, 0.91, 1.22, 1.52, 1.91, 2.29, 3.05, 3.43, 6.35, 9.53, 12.70, 15.88
Stainless Steel 3160.46, 0.61, 0.76, 0.91, 1.22, 1.52, 1.91, 2.67, 3.05, 3.43, 4.78, 6.35, 7.94, 9.53, 12.70, 15.88, 19.05, 25.40
Stainless Steel 410, annealed6.35
Stainless Steel 430, #3 brushed0.89, 1.17, 1.52
Stainless Steel 440C1.60, 2.39, 3.18, 3.96, 4.78
Stainless Steel CPM 1541.60, 2.39, 3.18, 3.96
Stainless Steel S30V, annealed2.39, 3.18, 4.78, 6.35
1075 Spring Steel, annealed1.27, 4.78
1075 Spring Steel, Blue Tempered0.38
1095 Spring Steel, annealed0.38, 0.64, 0.89, 1.27, 1.60, 2.11, 3.18, 4.78
1095 Spring Steel, blue tempered0.13, 0.20, 0.25, 0.38, 0.51, 0.64, 0.76, 0.89, 1.07, 1.27, 1.60
4130 chrome-moly steel, annealed0.81, 1.02, 1.27, 1.60, 2.03, 2.54, 3.18, 4.06, 4.83, 6.35
AR400 Steel, hardened3.18, 4.78, 6.35, 9.53, 12.70
AR500 Steel, hardened3.02, 4.78, 6.35, 9.53, 12.70, 15.88, 19.05
Corten A588 (Weathered) Steel1.52, 1.91, 2.54, 3.05, 3.43, 4.78, 6.35
Hot Rolled Steel 10456.35, 9.53, 12.70, 15.88, 19.05, 25.40
Hot Rolled Steel A569/ASTM A10111.52, 1.91, 2.67, 3.18, 3.43
Steel 1008, zinc-galvanized0.61, 0.84, 1.22, 1.52, 1.91, 2.54, 3.05, 3.43
Steel 10183.18, 4.78, 6.35, 7.94, 9.53, 12.70, 15.88, 19.05, 22.23, 25.40
Steel 4140, hardened3.18, 4.78, 6.35, 9.53, 12.70
Steel 80CRV23.18, 4.78
Steel A362.54, 3.05, 4.78, 6.35, 7.94, 9.53, 12.70, 15.88, 19.05, 25.40
Steel A36, pickled and oiled1.52, 1.91, 2.54, 3.05, 3.43, 3.43, 4.78, 6.35, 9.53, 12.70
Steel A366/10080.61, 0.76, 0.91, 1.22, 1.52, 1.91, 2.29, 2.67, 3.18
Steel A572 Grade 504.78, 6.35, 7.94, 9.53, 12.70
Steel G90, galvanized0.56, 0.61, 0.84, 1.22, 1.52
Tool Steel D2, annealed1.60, 2.39, 3.18, 3.96, 4.78
Tool Steel O1, annealed0.41, 0.79, 1.19, 1.60, 1.98, 2.39, 2.77, 3.18, 3.96, 4.78, 6.35, 7.94, 9.53, 11.11, 12.70
Titanium (Grade 2)0.89
Titanium 6Al-4V (Grade 5)0.81, 1.60, 3.18, 4.78, 6.35

Material thicknesses typically have a tolerance of +/- 0.050 mm.

Cutting Sheet Metal

Where Precision Begins

we know that precision starts with the perfect cut. That’s why we employ a variety of cutting techniques to ensure each part is crafted with the utmost accuracy and quality.

laser machine in sheet metal cutting work

Laser Cutting

Our high-precision laser cutting technology allows us to make extremely accurate cuts, even for complex shapes and designs. It's our go-to method for most projects due to its precision, versatility, and cost-effectiveness.

gas cutting in thick metal plate with spark

Plasma Cutting

For thicker materials or larger parts, we turn to plasma cutting. This method uses a high-velocity jet of ionized gas to cut through the metal, making it ideal for heavy-duty applications.

water jet cutting

Water Jet Cutting

And for materials that may be sensitive to the high temperatures generated by laser or plasma cutting, we use water jet cutting. This method uses a high-pressure jet of water, sometimes mixed with an abrasive substance, to cut the material.

comparison table that includes Laser Cutting, Plasma Cutting, and Water Jet Cutting

Cutting MethodProsConsCutting TolerancesMaterial TypesMaterial SizeApplication
Laser CuttingHigh precision, Good for complex shapes, Minimal waste, Cost-effectiveHigh heat can affect some materials, Not ideal for very thick materials+/- 0.005″Metals, Plastics, Wood, Glass, RubberUp to 6′ x 12′Ideal for intricate designs and mass production of parts
Plasma CuttingCan cut thick materials, Fast cutting speedLess precision than laser, Heat can affect material properties+/- 0.02″MetalsUp to 6′ x 20′Ideal for cutting large or thick parts, especially metal
Water Jet CuttingNo heat affected zone, Can cut almost any material, Can cut very thick materialsSlower than laser and plasma, Abrasive material can add to cost+/- 0.005″Metals, Plastics, Stone, Glass, CeramicsUp to 6′ x 12′Ideal for materials sensitive to heat, or for cutting very thick materials

Forming Sheet Metal

Sheet metal forming is a manufacturing process where flat sheets of metal are shaped into various parts through bending, stretching, or drawing. It involves techniques like stamping, rolling, and pressing to create parts with complex geometries, ensuring precision and consistency.

metal case punching-bended

There are several key types of sheet metal forming processes. Here’s a brief description of each.

This is one of the most common forming operations. It involves deforming metal around a straight axis to create a bend. This is typically done using a brake press that clamps the sheet metal between a punch and die.

This process involves placing flat sheet metal in either blank or coil form into a stamping press where a tool and die surface forms the metal into a net shape.

This is a cutting process where a punch and die are used to create holes in the metal. The punch is forced into the sheet metal and removes a portion to create the hole.

Also known as spin forming, this process rotates a disc or tube of metal at high speed. A shaping tool, or mandrel, is then applied to the spinning workpiece, deforming and shaping it into the desired shape.

This process involves applying pressure to a metal sheet to form a round or box-shaped part. The metal is drawn into a die by a mechanical punch, creating a shape that is deeper than it is wide.

This is a continuous bending operation in which a long strip of metal, typically coiled steel, is passed through consecutive sets of rolls, or stands, each performing only an incremental part of the bend.

sheet metal bending tool

Available Capacities for Sheet Metal Fabrication

Here’s part of the listed Capacities available through our site. for further info, please contact sales@okdor.com.

NameDescription
Blank Size3.05 m x 6.10 m. Larger size upon request.
Sheet Thickness0.15 mm to 60mm. Thicker and thinner size upon request.
Punch Size10.16 mm diameter hole capacity. Larger size upon request.
Weld Size6.0 m x 10.0 m. larger size upon request.
Assemble Size6.0 m x 10.0 m. larger size upon request.
Lead Time24 hours to 15 days.

Secondary process

Surface finishing

Our surface finishing processes are designed to protect your parts from corrosion, enhance their resistance to wear, and improve their aesthetic appeal. We use a variety of techniques to achieve the desired finish, ensuring that your parts meet both your functional requirements and your aesthetic preferences.

anodizing_Crossed_Helical_Gears

Available Surface Finishings for sheet metal fabrication

Enhance the appearance and durability of your parts with our extensive surface finishing options, including anodizing, powder coating, and bead blasting. Achieve the exact look and functionality you need.

TreatmentMaterialThicknessColor
AnodizingAluminum0.8-12 μmRAL code, Pantone number
NickelAll metals5-30μmSilver appearance
PassivationSS steel and Carbon Steel9~100 ÅClear
Black oxideFerrous materials0.8μmBlack
Bead blastingAll metals#100, #120Yellow or clear Iridescent
Powder CoatingAll metals10-80μmRAL code, Pantone number
Zinc-NickelAll metals5-25 μmClear, Black , Iridescent
Chromate coatingSteel and Aluminum0.25-1.0μmYellow or clear Iridescent

For more surface treatment options, please contact sales@okdor.com

Advantage of Surface Finishings for sheet metal fabrication

Finish TypeDescriptionProsConsSurface RoughnessApplications
PaintingA finish that provides both aesthetic appeal and a protective layer against corrosion.Versatile, available in many colors, provides corrosion protection.Can chip or peel over time, surface preparation required.Depends on the paint used, generally smooth.Used in a wide range of applications for aesthetics and protection.
Powder CoatingProvides a durable and corrosion-resistant surface. It’s typically thicker and more uniform than paint.Durable, corrosion-resistant, available in many colors.More expensive than paint, requires heat to apply.Smooth and uniform.Used in applications requiring durability and corrosion resistance.
AlodineA chemical process that prepares aluminum for painting or other finishes and provides a degree of corrosion resistance.Enhances paint adhesion, provides some corrosion resistance, can be used as a standalone finish.Only suitable for aluminum, less corrosion resistance than anodizing.Leaves a slightly rough, conversion coated surface.Used in aerospace and other industries where corrosion resistance and paint adhesion are important.
AnodizingA process used primarily for aluminum parts. Provides a durable, corrosion-resistant finish that can also be colored.Durable, corrosion-resistant, can be colored.Only suitable for aluminum.Smooth and hard.Used in aerospace, automotive, and electronics for its durability and aesthetics.
PolishingCreates a shiny, mirror-like finish on the metal.Aesthetic appeal, creates a smooth surface.Labor-intensive, not suitable for parts with complex geometries.Very smooth.Used in decorative applications or for parts requiring a smooth surface.
Bead BlastingCreates a uniform matte surface on the metal.Hides scratches and imperfections, provides a uniform surface.Can alter the dimensions of the part, not suitable for all metals.Matte and uniform.Used in applications where a uniform, matte surface is desired.
Black OxideA chemical conversion coating for ferrous materials that provides mild corrosion resistance and a pleasing black appearance.Provides a black finish, some corrosion resistance, does not change dimensions.Not as corrosion-resistant as plating or coating, only suitable for ferrous materials.Leaves a smooth, black conversion coated surface.Used in applications where a black finish is desired, such as in firearms, automotive parts, and tools.

Surface Treatment Showcase

Joining Sheet Metal

Witness Your Design Come to Life

At Okdor, we know that the final assembly is the culmination of all the meticulous work that goes into creating your custom sheet metal parts. That’s why we offer comprehensive joining and assembly services to ensure your parts come together seamlessly.

Whether your design calls for welding, riveting, or the use of adhesives, our skilled team has the expertise to assemble your parts with precision. From simple assemblies to complex constructions, we handle it all with the same attention to detail.

two metal joining together

Welding: Uniting Strength and Precision

we utilize welding, a time-tested method for joining sheet metal parts. Whether it’s MIG, TIG, or spot welding, our skilled team can handle it. We ensure solid and durable joints that can withstand demanding conditions, bringing your design to life with strength and precision.

Riveting: Classic Technique, Modern Application

 Riveting is a classic joining method still extensively used in modern sheet metal fabrication. At Okdor, we use riveting for its ability to create robust, non-permanent joints. It’s ideal for parts that may need to be disassembled, combining flexibility with durability.

man with rivet gun working on a riveting work
Adhesive Bonding with two metals

Adhesive Bonding: The Power of Modern Chemistry

Adhesive bonding is a modern joining method that offers unique advantages. At Okdor, we use high-strength adhesives to join sheet metal parts, creating solid and clean joints and thermal distortion-free joints. It’s a testament to the power of modern chemistry in sheet metal fabrication.

Fastening: Simplicity and Efficiency Combined

Fastening is a simple and efficient method for joining sheet metal parts. At okdor, various fasteners, such as screws and bolts, are used to assemble parts. It’s a quick and reversible method, perfect for parts requiring frequent assembly and disassembly.

Break Stem Rivets

Inspection

Our Commitment to Excellence

Our quality inspection process involves checking each part against the original design specifications, using both manual inspection techniques and advanced inspection equipment. We check for accuracy, consistency, and finish quality, ensuring that every part meets our exacting standards.


At okdor, quality is not just a goal – it’s a promise. That’s why we have a rigorous quality inspection process to ensure that every custom sheet metal part we produce meets the highest standards of precision and quality.

cmm inspecting sheet metal part

Before we even fire up our machines, we pore over your design specifications with hawk-like precision. We ensure every dimension, tolerance, and material specification is spot on. It’s our first step in turning your blueprint into reality.

As our skilled artisans breathe life into your design, we don’t just sit back and watch. We’re there at every step, scrutinizing every cut, bend, and join. It’s our way of ensuring perfection is not an accident but a habit.

Once your part is complete, it’s time for the grand reveal. But before we roll out the red carpet, we conduct a comprehensive final inspection. We measure, we compare, and we confirm. We sign off on it only when satisfied that your part is a masterpiece.

Depending on your project’s requirements, we may put your part through its paces. Stress tests, performance tests, you name it. We ensure that your part doesn’t just look the part but acts it too.

Every inspection, every test result, we document it all. It’s our way of keeping ourselves accountable and continuously improving. It’s our chronicle of quality, our testament to our commitment to excellence.

Delivery

Bringing Your Vision to Your Doorstep

From careful packaging to protect your parts during transit to partnering with trusted logistics providers for timely delivery, we handle every aspect of the delivery process with the same attention to detail that we apply to the fabrication process.

At okdor, we know that the final step in bringing your design to life is ensuring it reaches your hands safely and promptly. That’s why we offer reliable, efficient delivery services that bring custom sheet metal parts to your doorstep.

shipment picture in how-to banner

Applications of Sheet Metal Fabrication

Transforming Metal into Solutions for Every Industry

sheet metal fabrication application in Consumer Products

Consumer Products

Sheet metal is widely used in consumer products for its durability and versatility. It's found in appliances, utensils, and even decorative items. The balance of strength and formability makes it ideal for creating both functional and aesthetically appealing products for everyday use.

sheet metal fabrication in Electronics industrial

Electronics

In electronics, sheet metal fabrication is key for enclosures, chassis, and brackets. It's essential for heat dissipation and protection in devices like computers and servers. The flexibility of sheet metal allows for custom designs, crucial for housing rapidly evolving electronic technology.

sheet metal fabrication in Aerospace industrial

Aerospace

Sheet metal is vital in aerospace for components like fuselage panels and wing sections. Its use in creating lightweight, durable parts is crucial for aircraft performance and safety, which must adhere to strict precision and quality standards due to the high-stress conditions in aerospace environments.

Cost Analysis

Key Factors Affecting the Pricing of Your Metal Parts

1. Material Type and Quality

Prices vary significantly based on metal type (aluminum, stainless steel, etc.) and grade. Higher-grade metals offer better durability but at a higher cost, impacting the final price of the part.

sheet metal part aluminum brass stainless steel
difference sheet metal materials

2. Material Thickness and Size

The amount of material used plays a crucial role in pricing. Thicker and larger sheets require more metal, leading to higher material costs and, consequently, a higher overall product price.

3. Design Complexity

Complex shapes and intricate designs require advanced machinery and skilled labor. This complexity can increase production time and resource usage, leading to higher costs.

sheet metal components design
low volume sheet metal part

4. Precision and Tolerances

Parts requiring high precision and tight tolerances demand advanced technology, increasing manufacturing costs due to the need for specialized equipment and additional quality checks.

5. Order Quantity

Ordering in bulk often reduces the cost per unit, thanks to economies of scale. Larger orders spread the fixed costs, like setup and tooling, over more units, making each piece more cost-effective.

chrome yellow protective coating parts
laser cutting-close shot

6. Fabrication Processes

Each fabrication step (cutting, bending, welding, etc.) involves labor and machinery costs. The number and complexity of these processes directly impact the total cost of the part.

7. Custom Tooling Requirements

Custom tooling for specific part designs can be costly, particularly for low-volume orders. This cost includes designing and manufacturing unique tools or modifying existing ones.

sheet metal bending tools isolated
Hydraulic bending

8. Labor Costs

The cost of labor depends on the complexity of the part, the skills required, and the time it takes to manufacture. Skilled labor for intricate designs or high precision parts typically costs more.

9. Finishing Operations

Finishes like powder coating, anodizing, or plating add extra steps and materials to the process, increasing the overall cost. These finishes enhance appearance and durability but at an additional expense.

sheet metal part, black and white
aluminum metal enclosure, polished surface.

10. Prototyping and Testing

Developing prototypes and conducting tests for custom parts can add to the cost, especially for complex or precision parts. These stages are crucial for ensuring quality and meeting specifications but require additional resources and time.

11. Urgent Lead Times

Expedited orders require faster processing and often overtime labor, leading to higher costs. Shorter lead times can disrupt standard production schedules, necessitating a premium for urgency.

 

sheet metal part design

Quality Certifications & Specifications

Ensuring Superior Quality and Precision in Every Component

Material Quality Standards

Our materials undergo rigorous testing, including tensile strength analysis and corrosion resistance checks, conforming to ASTM and SAE standards. We source only the highest grade metals, ensuring durability and performance in all our products.

Manufacturing Process Control

Our manufacturing processes are meticulously controlled, featuring automation for precise fabrication. We adhere to Lean manufacturing principles, conducting regular quality audits to minimize waste and optimize efficiency.

Accuracy and Tolerances

Precision is key in our operations. We achieve dimensional accuracy within ±0.001 inches, adhering to tight tolerances through advanced CNC machinery and skilled craftsmanship, ensuring exact specifications for each part.

Finishing Process Quality

Finishes such as powder coating, anodizing, or electroplating are applied under strict quality controls. We use environmentally friendly processes and materials, ensuring a high-quality, durable finish that meets both aesthetic and functional standards.

Custom Testing and Inspection

Each custom part is subject to specialized testing, including FAI, DPI, PSI, to ensure it meets precise functional requirements. Our thorough inspection protocols guarantee that every component performs as expected.

Traceability and Documentation

We maintain detailed records for full traceability of each component, from raw material sourcing to final production. This documentation ensures a clear audit trail, enhancing accountability and quality assurance throughout the manufacturing process.

Continuous Improvement Policies

Our quality assurance extends beyond current standards. We continuously invest in training, technology, and process improvements, incorporating customer feedback and industry advancements to elevate the quality of our products consistently.

Compliance with Regulatory Standards

Our products adhere to strict regulatory standards, including local and international safety and environmental regulations, ensuring that our components are not only high in quality but also meet all legal and ethical requirements.

Customer Feedback

Customer feedback is integral to our quality process. We actively seek and incorporate client input to refine our products, demonstrating a commitment to not just meet but exceed customer expectations in quality and service.

Design Guide For Sheet Metal Fabrication

Design Guidelines for Sheet Metal Fabrication

This section offers a comprehensive overview of Design for Manufacturability (DFM) principles in sheet metal fabrication.

Here, we’ll explore essential guidelines on material selection, bending, cutting, and assembly techniques, aiming to provide valuable insights for creating designs that are both practical and cost-effective to produce.

Panel bending in close-shot

Sheet Metal General Design Considerations:

  1. Efficient Material Selection:

    • Use common and easily machinable materials to avoid additional costs associated with specialized handling or tooling. For instance, choose standard grades of steel or aluminum that are readily available and work well with most fabrication processes.
  2. Simplifying Design Elements:

    • Design parts with the least number of bends. If a part can be made with three bends instead of five, it reduces both the fabrication time and the possibility of errors.
    • Create designs with straightforward cuts and avoid intricate shapes that require extensive machine time. Straight, clean cuts are easier and faster to execute.
  3. Designing for Ease of Fabrication:

    • Ensure that there’s sufficient space for tools to access all areas of the part. For welding, leave enough clearance around the joint areas.
    • If a part can be modular, design it in sections that can be easily fabricated and then assembled. This can simplify the overall manufacturing process.
  4. Minimizing Assembly Complexity:

    • Incorporate features like notches or alignment tabs that help in correctly orienting parts during assembly, reducing the time and potential errors in assembly.
    • Limit the variety of fasteners used in the design. Using one or two standard sizes simplifies inventory and speeds up the assembly process.
  5. Optimizing for Fabrication Processes:

    • Design with tolerances that are achievable without requiring excessive machining time. For example, allow for a tolerance of ±0.5 mm rather than ±0.1 mm if the function of the part permits.
    • Arrange parts on the material sheet in a way that maximizes material usage and minimizes waste. Consider software solutions for optimal nesting of parts.

Standard Tolerances – ISO 2768:

Our processes follow the ISO 2768 standard for general tolerances, guiding dimensional variations. For instance, if a part is designed to be 100 mm, under ISO 2768, it might vary slightly but will stay within the predefined acceptable range.

Material Sheet Tolerances:

Each material sheet, typically with a tolerance of around ±0.050 mm, affects the final dimensions. For example, a 5 mm thick steel sheet might actually range from 4.95 mm to 5.05 mm in thickness, impacting design considerations.

Different material thicknesses result in varying tolerances. Designers must account for these in their designs to ensure that assembled parts fit and function as intended.

Design Considerations for Tolerances:

When designing, both ISO standards and material-specific tolerances should be considered. For a design requiring high precision, such as a fitted component in an assembly, these tolerances become critical to ensure seamless integration.

Balancing Tolerances and Cost:

Tighter tolerances can lead to increased costs. For example, a design requiring a tolerance tighter than ±0.050 mm may necessitate additional processing, increasing manufacturing time and expense.

Communicating Tolerances in Designs:

Clearly marked tolerances on design drawings guide the fabrication team. For instance, a design might specify a hole diameter of 10 mm ±0.1 mm, directing the team on the acceptable range for drilling.

Bend Radius Guidelines:

General Rule: The minimum bend radius should typically be the same as the thickness of the material. For example, for a 2 mm thick metal sheet, a minimum 2 mm bend radius is recommended.

Material Specifics: Softer materials like aluminum can tolerate tighter bend radii, while harder materials like stainless steel require larger radii to prevent cracking.

Bend Angle Considerations:

Accounting for Springback: Different materials exhibit varying degrees of springback. For steel, overbending by 2-3 degrees is often necessary to achieve an accurate angle. Aluminum, being more flexible, may require a slightly greater overbend.

Precision in Angles: For critical components where angles are vital, prototype testing is advisable to determine the exact bending requirement.

Positioning of Bends:

Distance from Edges: Ensure bends are positioned at least two times the thickness of the sheet from any edge to maintain structural integrity. For a 1 mm thick sheet, bends should be at least 2 mm from the edge.

Spacing Between Bends: Maintain a minimum spacing between consecutive bends, typically around three to four times the material thickness, to prevent interference and ensure ease of fabrication.

  1. Aluminum: Ideal for lightweight applications, aluminum is easy to shape and offers good corrosion resistance. Best used in aerospace, automotive, and consumer goods.

  2. Steel: Known for its strength and durability, steel is a versatile choice for a wide range of applications. It’s cost-effective and suitable for structural components.

  3. Stainless Steel: With its superior corrosion resistance, stainless steel is perfect for outdoor or harsh environmental conditions. It’s widely used in medical, food processing, and marine industries.

  4. Brass/Bronze: These materials offer an aesthetic appeal with good corrosion resistance. They are often chosen for decorative elements or in applications requiring low friction.

  5. Copper: Excellent for electrical conductivity, copper is primarily used in electrical components. It’s also known for its thermal conductivity but is more expensive and softer.

Thickness Considerations:

  • The material thickness affects the strength, weight, and flexibility of the part. Thicker materials provide more durability but are harder to process, while thinner materials are easier to shape but may lack structural integrity.

Minimum Hole Size:

Design holes with a diameter that is at least equal to the material thickness. For a 1 mm thick sheet, the hole diameter should be at least 1 mm.

Edge Distance for Holes:

Position holes at a distance from the material edge that is at least two times the thickness of the material. In a 1 mm thick sheet, place holes at least 2 mm away from any edge.

Slot Dimensions:

Make slot widths at least equal to the thickness of the material. For a 1 mm thick sheet, slot width should be at least 1 mm.

Limit slot length to a maximum of five times the slot width to maintain material strength.

Proximity to Bends:

Keep holes and slots at least three times the material thickness away from bends. For a 1 mm thick sheet, this means placing holes or slots no closer than 3 mm from any bend.

Spacing Between Holes/Slots:

Space multiple holes or slots at least apart by the diameter of the largest hole or the width of the widest slot.

Consideration for Fabrication Method:

Factor in the chosen fabrication method. For punching, ensure enough clearance for the punch; for laser cutting, account for the kerf width.

  1. Welding:

    • When to Use: Ideal for permanent joins and high-strength requirements. Best for steel and aluminum.
    • Design Tips: Allow at least 5 mm of space around the welding area for tool access. Design joints to be easily reachable and clean them prior to welding.
  2. Riveting:

    • When to Use: Suitable for both permanent and semi-permanent joins. Good for assembling different materials.
    • Design Tips: Match hole size precisely with rivet size. For a 4 mm rivet, use a 4 mm hole. Ensure there’s at least 2 mm of material around the hole to prevent tearing.
  3. Fastening with Screws and Bolts:

    • When to Use: Best for assemblies that require disassembly or adjustment. Versatile for various materials.
    • Design Tips: Use holes that are 0.1-0.2 mm larger than the fastener diameter for ease of assembly. Consider using locknuts or thread-locking fluid for vibration-prone environments.
  4. Ensuring Assembly Accessibility:

    • How to Design: Create designs where all joining points are easily accessible with standard tools. Avoid deep recesses or cramped spaces where tools can’t reach.
  5. Incorporating Alignment Features:

    • What to Include: Use tabs in one part and corresponding slots in the other for self-aligning assembly. This reduces the need for complex jigs or fixtures.
  6. Maximizing Strength and Durability:

    • For High-Stress Areas: Use welding or solid rivets in areas subjected to heavy loads or stress. Consider reinforcing these areas with additional material or supports.

Avoid Common Pitfalls with okdor

Facing challenges in sheet metal fabrication? You’re not alone. From navigating material selection to meeting precise specifications, the journey can be complex. At okdor, we simplify this process. With our expertise in industry compliance and innovative design integration, we turn challenges into seamless solutions.

a unfunction broken 0.3 mm thicknesss sheet metal part

Our approach prioritizes efficient, cost-effective fabrication without compromising on quality. We blend precision engineering with clear communication and robust support, ensuring every project is a success. The result? Reliable, high-quality outcomes delivered on time, every time. Choose Okdor for a fabrication experience that’s as reliable as it is rewarding

Your Parts, Faster Than a Blink

From Concept to Reality, Faster Than Ever Before

In a race against time for your product development? Okdor’s got you covered. We’ve specifically assigned a team of skilled engineers to ensure your custom sheet metal parts or samples are ready in just 24 hours. 

This dedicated team works tirelessly to transform your designs into reality, combining speed with the precision and quality Okdor is known for.

 Whether it’s a prototype or a custom part, our team is focused on getting it into your hands quickly, so your project never misses a beat. Let’s accelerate your development process together, one rapid turnaround at a time.

drawing-blank-fine-part

Quality Assurance

Your Satisfaction, Guaranteed – From Delivery to Performance

quality pic in lp

Choose okdor for risk-free quality assurance. 

If your sheet metal part doesn’t match your specifications, we’re on it with a quick refund or a new batch, free of charge. We’re all about your satisfaction and peace of mind, ensuring every part we deliver meets your expectations, or we make it right.

Communication Channels

Expert Support at Every Stage – From Concept to After-Sales.

At okdor, effective communication is at the core of our service. We ensure that every project receives the attention and expertise it deserves, from start to finish.

Dedicated Project Management

Each project is assigned a personal project manager, providing a consistent point of contact throughout your journey with us. This manager oversees your project’s progress, ensuring timely delivery and addressing any concerns you might have along the way.

engineer assistant
Technical Expertise On-Demand

Technical Expertise On-Demand

During your project, should any technical questions or Design for Manufacturing (DFM) challenges arise, our senior engineering team is ready to step in. They bring their expertise directly to your discussions, assisting in refining designs and solving technical issues efficiently.

Responsive After-Sales Service:

Once your custom parts are in your hands, our commitment doesn’t end. Our after-sales service team is always on standby, ready to assist with any further needs or queries. This ongoing support guarantees not just product satisfaction, but also peace of mind knowing that expert help is always available.

after sales service

With these three robust communication channels, okdor ensures that you have knowledgeable and dedicated support at every step of your project. Our goal is to make your experience seamless, supported, and successful.

why choose okdor

  • Rapid Turnaround Time: At okdor, speed meets precision. We’re capable of producing custom sheet metal parts in as little as 24 hours, ensuring that your urgent needs are met promptly without compromising quality.

  • Low Minimum Order Quantity (MOQ): Flexibility is key in our operations. Whether you need a single piece or a small batch, we cater to your specific requirements with a lower MOQ, starting from just one piece.

  • Robust Communication Channels: Effective communication is the cornerstone of our service. We maintain clear and open lines of communication, ensuring that every project detail is understood and addressed.

  • End-to-End Service: From interpreting your drawings to delivering the final product, we handle every step with utmost care and precision. Our team ensures a seamless process, turning your designs into fine, tangible parts.

  • Guaranteed Quality Assurance: Quality is not just a promise; it’s a guarantee at okdor. We stand behind our work with a comprehensive quality assurance policy. If the specifications are not met, we’re committed to making it right, either through a refund or a replacement.

laser processing on metal

FAQ's

STEP. IGES. DWG and Solid Works files are acceptable. PDF is also accepted. 
Your convenience is our priority.

Metal sheet thickness ranges from 0.15mm to 60mm. Blank sizes range from 5mm to 6100mm. Smaller or larger sizes are available upon request.

There are about 25 surface finishing options for sheet metal, including powder coating, anodizing, and black oxidizing.

Generally, it’s determined by your custom part’s geometry. The fast turnaround for Sheet metal is 24 hours.

Among the sheet metal fabrication services offered are: laser cutting, bending, riveting, welding, surface coating, and assembling.

Stainless steel, steel, copper, brass, aluminum. etc. There are more than 40 types of stocked metals ready for sheet metal fabrication.

The sheet metal and CNC machining processes are available with enhanced finishing options. Currently, secondary processes are only available for sheet metal.

Resources

The complete guide to custom manufacturing

Everything about custom manufacturing.

Collection of materials properties

Helpful tips and Advice

hand polishing part

About okdor

In a fast, efficient, and cost-effective manner, we provide services to product developers and engineers worldwide who are bringing new ideas to market.

The okdor story

Talk to us

why choose us 

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Order flow, from quote to deliver

How do we quote and deliver parts so fast

How we deliver consistent quality

Lead time as fast as 24 hours

Service Overview

Our team works with hundreds of specialized manufacturers so you don’t have to. Quality is guaranteed even on the most complex prototypes and parts.

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