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Tailored Excellence in Sheet Metal Fabrication

Tailored Excellence in Sheet Metal Fabrication

No MOQ Limited, Factory Direct, Lead Time As Fast As 2 Days - Unleash the Power of Customized Sheet Metal Solutions! Elevate Your Precision Manufacturing Experience with Our Exceptional Services!

Home > Sheet Metal Fabrication

Service Field Case

Self-service equipment
Self-service equipment
The shells of self-service ticket machines, vending machines, self-service coffee machines and other equipment are mostly made of sheet metal processing.
Automation equipment
Automation equipment
CNC technology assists automation equipment in metal sheet metal processing, achieving high-precision and high-efficiency sheet metal manufacturing, and meeting the requirements of modern industry for equipment performance and accuracy.
Automobile manufacturing
Automobile manufacturing
Most automobile shells are processed from sheet metal. This is because the cost is lower than carbon fiber and the like, it is easy to form and weld, and it can ensure the strength of the body. At the same time, electric vehicle charging piles can also be obtained through sheet metal processing.
Electronic device casing
Electronic device casing
CNC sheet metal processing technology provides high-precision and high-quality solutions for the manufacturing of electronic equipment casings, ensuring that the equipment has a beautiful appearance and a stable structure.

Getting To Know Sheet Metal Fabrication

TurnkeyModel

TurnkeyModel's sheet metal department has a huge scale, with more than 150 sets of various types of equipment, including: laser cutting machines, CNC punching machines, leveling machines, plasma cutting machines, bending machines, tapping machines. We provide laser cutting, punching, bending, plasma cutting and other processes, offering a full range of services in sheet metal fabrication. Sheet metal fabrication has a wide range of applications, including machinery, automobiles, new energy, electronics, medical, self-service equipment, aerospace, shipbuilding and other industries. With the development of science and technology and the continuous upgrading of industry, sheet metal fabrication will be more widely used in various fields. We are committed to providing high-precision sheet metal processing services, with an accuracy of up to ±0.05mm, to meet customers' high requirements for accuracy and quality.

Sheet Metal Machining Equipment

1705367383840179
Laser Cutting Machine
1705367546521501
CNC Punching Machine
1705367847986793
Leveling Machine
1705369023571571
Plasma Cutting Machine
1705368543194973
Bending Machine
1715757923993065
Tapping Machine

Know More about Sheet Metal Fabrication

Sheet Metal Fabrication Working Principle

According to the drawing requirements, plasma cutting, laser cutting, punch and other equipment are used to cut the plates

After blanking, the plate shall be bent. According to different angles and size requirements, appropriate bending equipment and dies shall be selected for fabrication

Weld the plated if required

Grind the welded seam to remove burrs, slag and other impurities on the weld surface

Carry out surface treatment for sheet metal parts as required, such as spraying, electroplating, oxidation, etc

Assemble the processed sheet metal parts according to the drawing requirements

Inspect the assembled sheet metal parts, including dimensions, precision, appearance, etc

Pack the qualified sheet metal parts

Our Products

White Painting Q235 Outdoor Monitor Back Cover by Sheet Metal Bending & Welding
White Painting Q235 Outdoor Monitor Back Cover by Sheet Metal Bending & Welding
Heat Treated Mild Steel Transmitters Part by Cutting & Bending
Heat Treated Mild Steel Transmitters Part by Cutting & Bending
Red Anodized Al5052 Consumer Goods Enclosure by Welding
Red Anodized Al5052 Consumer Goods Enclosure by Welding
Pickled SUS304 Cable Protector Part by Welding
Pickled SUS304 Cable Protector Part by Welding

Materials

Carbon Steel
Carbon Steel

Model Number: Carbon Steel

thicknesses: 0.1

Thickness Tolerance: 0.03

Bend: All can be bent

Copper
Copper

Thicknesses: 0.1

Thickness Tolerance: 0.02

Bend: All can be bent.

Material Specifications: 0.3*C, 0.4*C, 0.5*600*1500, 0.6*600*1500, 0.8*600*1500, 1.0*600*1500, 1.2*600*1500, 1.5*600*1500, 1.8*600*1500, 2.0*600*1500, 2.5*600*1500, 3.0*600*1500, 3.2*600*1500, 3.5*600*1500, 4.0*600*1500, 5.0*600*1500, 6.0*600*1500

SUS303 Stainless Steel
SUS303 Stainless Steel

Model Number: SUS303

Thicknesses: 0.1

Thickness Tolerance: 0.03

Bend: All can be bent.

AL6061 Aluminum
AL6061 Aluminum

Model Number: AL6061

thicknesses: 0.1

Thickness Tolerance: 0.02

Bend: Don't bend it. It will break.

Material Specifications: 1.0*1220*2440, 1.2*1220*2440, 1.5*1220*2440, 1.6*1220*2440, 2.0*1220*2440, 2.5*1220*2440, 3.0*1220*2440, 3.5*1220*2440, 4.0*1220*2440

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Sheet Metal Fabrication Services

Sheet metal is a metal part machined from uniformly thick and thin sheet metal by cutting, bending, and welding processes. We can often find it in the housing of many pieces of equipment.

See How It Works


  • Laser cutting
    Laser cutting
    It is a process that uses a laser beam to cut parts from the metal sheets as per the parts’ profile. Laser cutting is fast and cost-effective in small-quantity runs.
  • Bending
    Bending
    It uses the ductile properties of the material to create V, U, and channel-bending shapes using molds.
  • Welding
    Welding
    It helps to achieve complex structures by joining two or more metallic parts together with heat and pressure. However, the parts are easily deformed because of structure.
  • Riveting
    Riveting
    Riveting is using the axial force to press a nail into a metal plate to form a nail head, allowing multiple thin metal plates to be joined without the addition of other components.

Sheet Metal Fabrication Case Study

            The sheet metal team from TurnkeyModel has over 20 years of experience. Rich experience and mature processes ensure the quality of parts. Below is a brief flowchart.

Material
Material

02.02.2023

Mark Chan

1709880603902292
Cutting
Cutting

03.02.~04.02.2023

Daniel Zhou

1709880603902292
Bending
Bending

05.02~06.02.2023

Andy Sun

1709880603902292
Riveting
Riveting

07.02~08.02.2023

Leo Qian

1709880603902292
Riveting
Welding

09.02.2023

James Zhao

1709881408841680
Riveting
Package

14.02.2023

Leslie Wong

1709881541756946
QC
QC

13.02.2023

Ian Xu

1709881541756946
Engraving
Engraving

13.02.2023

Stone Zhang

1709881541756946
Finish
Finish

11.02~12.02.2023

Brandon Dong

1709881541756946
Grinding
Grinding

10.02.2023

Bruce Fong

Why Choose Us for Your Sheet Metal Project?

Intelligent Manufacturing Service

Lower risk & cost. DFM report will help you optimize design if necessary

Save communication time & cost. No need to find other partners for different processes

One-stop service. We can support “Design-> Manufacture->Assembly” one-stop delivery

Clear update. You will know every step of your project with detailed photos. No need to worry

Ensured quality. Every project will follow our strict quality control system

Traditional Manufacturing Service

High risk & cost. Without a DFM report in the early stage, problems may occur during the manufacturing

Long communication time & cost. Have to talk with several suppliers for different processes

Single service. May pay extra cost for assembly after collecting the parts from suppliers

Unclear update. You are the last one to know if any delays and have no idea about the delivery schedule

Unstable quality. No clear quality control process and may have problems if any information was not shared

Sheet Metal Fabrication Standards

In order to guarantee the accuracy of the parts and to maintain consistent quality, we generally default to dimensional tolerances for sheet metal parts in accordance with the ISO2768-M standard as below.


Feature

Tolerance

Bend angle

±0.5°

Bend to edge

±0.2mm

Edge to edge

±0.2mm

Edge to hole

±0.1mm

Hole to hole

±0.1mm

Hole Diameter

±0.05mm

Standard surfaces

Deburring

Why Choose Us for Sheet Metal Fabrication

Ensure that the processed sheet metal parts are accurate in size and shape to ensure smooth subsequent assembly and use.

Ensure that the surface quality of the parts is excellent and there are no obvious scratches, bumps and other defects to meet the appearance and functional requirements of the product.

Use efficient processing equipment and techniques to improve production efficiency to meet customer delivery times and production needs.

Establish a strict quality control system to ensure the stable quality of each processing link and avoid batch quality problems.

1712727821133914

Allowable Sheet Thickness

The thickness and thickness tolerance of the sheet will directly affect its manufacturability of the sheet. Below you can find some common sheets in the Chinese market, if they do not meet your expectations, please contact us.


MaterialThickness/mmThickness tolerance
Aluminum0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9,1.0, 1.2, 1.5, 1.6, 2.0, 2.3, 2.5, 3.0, 3.2, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 15.0, 20.0In general, the tolerance is ±0.1mm for material thickness of less than 3mm. For material thickness of 3-6mm, the tolerance is ±0.15mm. For material thickness greater than 6mm, the tolerance is ±0.5mm.
Steel0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 0.9, 1.0, 1.2, 1.5, 1.6, 2.0, 2.3, 2.5, 3.0, 3.2, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 18.0, 20.0, 25.0In general, the tolerance is ±0.1mm for material thickness of less than 3mm. For material thickness of 3-6mm, the tolerance is ±0.15mm. For material thickness greater than 6mm, the tolerance is ±0.5mm.
Stainless Steel0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 0.9, 1.0, 1.2, 1.5, 1.6, 2.0, 2.3, 2.5, 3.0, 3.2, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 18.0, 20.0, 25.0In general, the tolerance is ±0.1mm for material thickness of less than 3mm. For material thickness of 3-6mm, the tolerance is ±0.15mm. For material thickness greater than 6mm, the tolerance is ±0.5mm.
Copper/Brass0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 0.9, 1.0, 1.2, 1.5, 1.6, 2.0, 2.3, 2.5, 3.0, 3.2, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 18.0, 20.0, 25.0In general, the tolerance is ±0.1mm for material thickness of less than 3mm. For material thickness of 3-6mm, the tolerance is ±0.15mm. For material thickness greater than 6mm, the tolerance is ±0.5mm.

Available Finishes For Sheet Metal

Aluminum and copper will oxidize when exposed to air, while steel will rust. This is why adding a proper finish to sheet metal parts is essential and will help us extend the parts' life.

  • Bead blasting

  • Brushing

  • Polishing

  • Anodizing

  • Powder coating

  • Painting

  • Electroplating

  • Silk screening

  • Laser engraving

After Painting"
Before Painting"


Client's Feedback

TurnkeyModel really helped me a lot on my sheet metal project. It was a rush and Rebecca coordinated and finally, the pieces met me three days before my expected schedule. Now the project is under mass production and we will have more projects in the corner with TurnkeyModel.
Boss
- Boss
We ever had a project with Lucky, she shared many professional suggestions with her whole team with the suggestions, we were able to lower our cost on the sheet metal projects by 30%. The boards reached us perfectly and all our expectations were satisfied.
Engineer
- Engineer
We got the sheet metal boards yesterday and I have to say I was impressed with the sheets. They are awesome! Our team checked the dimensional and crucial parameters, everything seems fine now. Internal tests will proceed soon and we will let you know the result by then.
Product Engineer
- Product Engineer

FAQ About Sheet Metal

  • What is the difference between painting and powder coating? Which one is better for sheet metal pieces?

    The thickness of the painting is 20-180μm while the powder coating is 50-200μm. With thicker film, powder coating can protect the pieces better and prolong the service life. Painting always has a more smooth and glossy surface. There is little price difference between painting and powder coating for normal color. If you want to custom paint or powder coating color, RAL or Pantone code is needed.

  • What services do you offer for sheet metal?

    TurnkeyModel is able to offer cutting, bending, punching, welding, and even riveting. With our own sheet metal factory, we can ensure the lead time and start with 1 piece. There are also many finish options for sheet metal that you can get from TurnkeyModel. Assembly service is also available from TurnkeyModel.

  • What if my sheet metal project is long and how will you protect it from deformation?

    Our max bending capability is 3000mm, if your design is within our limit, we can handle it. As to specially designed projects (too long or too thin), we will use suitable protective material, for example, board, wooden stick, tape, foaming materials, and others to make sure the parts are in good condition

  • How do you usually ship the large sheet metal goods?

    Because of the structure of sheet metal, the parts are always light in weight but heavy in volume weight. It will take lots of money to ship if the size is too big. Normally we suggest you ship large sheet metal parts by sea to lower the cost, however, the shipping time will be longer.

  • Will you keep my V-shape or U-shape die for future productions? Should I pay for that?

    For some basic V-shape or U-shape die, we have some dies with standard size and if your project can use our dies, there won’t be any extra cost. However, if you have future plans for your sheet metal projects, which were mentioned with our team before, we will keep the dies for you for a certain period.

  • I want the welding to look nice on my sheet metal piece, can you do that?

    Sure! Every piece in TurnkeyModel will be perfectly grinding after the welding process to make sure the welding area is flat and smooth. This is not only for our requirement, but also for further finish actions. After grinding and finishing, it is hardly possible to find the welding trace.

  • What is the max sheet metal fabrication service you can offer?

    Based on our current capabilities, the max size we can handle is 3 meters long. However, for such a size part, normally we will suggest doing the shipment by sea as the cost will be greatly high if shipped by air.

  • Why the cost for one piece is so expensive?

    There are some points important for our quotation, for example, quantity, design, structure, material, and finish. All the factors mentioned above will more or less influence the cost. For one piece, we will still go through the whole process, just like more pieces. So, on average the total cost, and price for one piece will be higher than for bigger quantities.

  • What is your default finish for sheet metal?

    Our default finish for sheet metal is as cut, but normally we will do some debur actions here to prevent hurting the edges since they are very shaped after cutting.

  • How long does it take to manufacture custom tooling?

    Generally, the lead time for tool and die manufacturing depends on the complexity of the punch design, the number of total operations needed to produce your part (for progressive stamping), and the quantity of parts required. Single-stage tooling usually takes roughly 4 to 6 weeks to produce; progressive tooling usually takes 8 to 10 weeks.

Which Designs Will Reduce Your Sheet Metal Costs?

  • 1.Shape for ease of layout.

    The array of the sheet metal parts allows for a reduction in material waste, an increase in material utilization and a reduction in material costs.

  • 2. Choose sheet with standard thickness.

    Standard material thicknesses are more economically priced in the material market. If the thickness of the sheet needs to be customized, the material cost will increase.

  • 3. Avoid to choose sheet with too thin thickness.

    When the material thickness is less than 0.5mm, the part is prone to deformation during machining. If the deformation is unacceptable, there will be increased labor costs to straighten the part.

  • 4.Avoid narrow & long features.

    Narrow and long features not only have low part strength, but they also waste a lot of material when cutting. When mass production comes around, narrow and long features will increase the cost of the stamping tool.

  • 5. Avoid concave and convex shapes.

    Using a simple profile instead of a concave-convex profile, which requires a concave or convex mold to be made, will increase the cost of the mold.

  • 6. Avoid complex bending.

    The impact on costs of complex bending during the prototype phase is small. But when mass production comes, each bend will require 1-2 sets of tooling to complete and tooling costs will increase.

  • 7. Avoid strict dimensional tolerance

    Laser cutting and bending cannot meet precise dimensional tolerances. When dimensional tolerances are less than ±0.05mm, CNC milling is required to help it complete the precision machining and manufacturing costs will increase.

  • 8. Reasonable min bending edge length

    When the bending edge length is less than a certain value, the sheet will not be bent. We need to extend the bending edge length and then cut off the excess length after the bending is completed, which will increase the material and manufacturing costs. In general, the minimum bending edge length can be designed to be more than 3 times of the thickness.

  • 9. Reasonable bending radius.

    When the general sheet thickness is less than 6mm, the inner radius of the sheet bending can be directly equal to the sheet thickness. When 6 < sheet thickness < 12mm, the inner bending radius of the sheet is generally 1.25~1.5 times the sheet thickness. When the sheet thickness is greater than 12mm, the sheet bending radius is generally chosen to be 2 to 3 times the sheet thickness. If the bending radius is out of range, it needs to be processed with a customized special mold and the manufacturing cost will increase.

  • 10. Reasonable assembly method.

    There are many ways to assemble sheet metal, and a reasonable assembly method is closely related to the cost. Snap ≤ blind riveted≤ riveted ≤ welded ≤ common screw ≤ manual screw

  • 11. Features are standardized as far as possible.

    Try to use standard holes and slots for sheet metal features, non-standard features will take more machining time and will cost more to manufacture.

  • 12.Use more standard fasteners.

    Whenever possible, choose standard fasteners for the connection of sheet metal parts. Customized fasteners will increase manufacturing costs.

Pros and Cons of Sheet Metal

Prons

1. Simple process.
Complex structures can be manufactured by simply cutting, bending and welding.

2. Easy to shape.
It can be bent into many shapes and still retain its strength and structural integrity.

3. Strength and durability.
The one-piece construction greatly guarantees the strength and durability of the sheet metal.

4. Cost-Effective
Small machining volumes, low material waste, and economical manufacturing costs compared to CNC milling.

5. Variability
Easy to cut, weld and can manufacture large and complex components.

Cons

1. Cost will be high if quantity is small
The sheet metal process is simple but complex and it requires a lot of equipment to work together, so start-up costs are high. When the quantities are small, the start-up costs borne by each part will be expensive.

2. Limited design.
Sheet metal is only suitable for thin sheet construction and cannot be completed by bending if the thickness of the board exceeds 20 mm.

3. Lower manufacturing accuracy than CNC milling.
Compared to CNC milling, sheet metal fabrication is less precise. If dimensional tolerances are less than ±0.01mm, CNC milling is required to assist in the work.

4. Deformation.
When welding is involved, the sheet metal will deform under the effect of thermal expansion and contraction. The tolerance of the weld position will not be guaranteed. The larger the weld area, the greater the distortion.

1709878788848709

Our ability is CNC machining, sheet metal fabrication, injection molding, die casting and so on. No matter what stage of development you are in, you will find a solution at TurnkeyModel.

Quick Contact

lf you have any questions or need help, feel free to contact with our team.

Address

No.1 Building Vanke xingchen, Shangxing Road,

Xinqiao Street, Baoan Distrcit, Shenzhen, China

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