- Ellyn@tenghui-proto.com
- +86-18666887162
TENGHUI provides fast custom sheet metal fabrication services for rapid prototyping and high-volume production. We manufacture precision sheet metal parts to tight tolerances under an ISO 9001-certified quality management system and deliver them quickly worldwide.
✅ All Design Uploads Are Secure & Confidential
Upload your CAD files and drawings to get a fast quote for your custom sheet metal fabrication project. Our experienced engineers provide actionable Design for Manufacturability (DFM) feedback to improve manufacturability, manage costs, and shorten lead times. Supported by comprehensive fabrication and finishing capabilities at our China-based facility, TENGHUI manufactures precision sheet metal parts with consistent quality—from a single prototype to high-volume production—with fast worldwide delivery.
Our fiber laser cutting service delivers accurate profiles, intricate features, and clean, consistent edges across aluminum, stainless steel, carbon steel, brass, and other sheet metals.
CNC punching provides flexible production of holes, slots, louvers, and knockouts, while custom stamping enables efficient, repeatable forming for medium- and high-volume parts.
CNC press brake bending and sheet metal rolling produce precise angles, radii, cylinders, cones, and curved panels for both simple and complex components.
Our TIG, MIG, and spot welding capabilities create strong, reliable parts and assemblies with controlled distortion, dimensional accuracy, and clean weld finishes.
We install self-clinching nuts, studs, standoffs, rivets, and threaded inserts to provide secure attachment points and simplify downstream assembly.
We integrate fabricated components, fasteners, and other hardware through welding, riveting, and mechanical fastening to deliver inspected products ready for installation.
Choose from our range of aluminum, stainless steel, carbon steel, galvanized steel, brass, and copper materials for laser cutting, bending, forming, punching, welding, and final assembly. Our engineers can help you select the right material based on strength, formability, corrosion resistance, surface finish, and project cost.
Material certificates and traceability documents are available upon request.
Aluminum delivers an exceptional strength-to-weight ratio, superior thermal and electrical conductivity, and natural atmospheric corrosion resistance. Ideal for lightweight electronic enclosures, aircraft brackets, and heat sinks.
| Aluminum Type | Available Grades | Key Properties & Applications |
|---|---|---|
| Commercially Pure | 1050 1060 | Offers excellent formability, corrosion resistance, and electrical conductivity but relatively low strength. Suitable for panels, covers, electrical parts, and lightweight enclosures. |
| Forming & Marine | 5052-H32 5754 5083 | The premier alloy for sheet metal press-brake bending and TIG/MIG welding. Outstanding saltwater corrosion resistance and high fatigue endurance. |
| Structural Alloy | 6061-T6 6063 | High mechanical strength and excellent post-machining dimensional stability. Responsive to anodizing for wear-resistant and decorative finishes. |
Optimize your sheet metal CAD designs to ensure high manufacturability, minimize tooling wear, and reduce your production costs.
Design all bends on a single part with the same inside radius. This avoids multiple machine setup changes and specialized punch-die swaps during press brake operations, drastically lowering your unit cost.
Keep holes, slots, and cutouts at a minimum distance of 3x the sheet thickness away from the bend tangent line to prevent the opening from stretching, ovalizing, or warping during press brake forming.
Ensure the diameter of any pierced or punched holes is at least equal to or greater than the sheet thickness. Piercing holes smaller than material thickness leads to severe punch tip wear and premature tool breakage.
Optimize your sheet metal CAD designs to ensure high manufacturability, minimize tooling wear, and reduce your production costs.
Design all bends on a single part with the same radius. This avoids machine tooling changes during production, drastically lowering your unit cost.
Keep holes and slots at a minimum distance of 3x the sheet thickness away from the bend line to prevent the hole from stretching or warping during forming.
Ensure the diameter of any pierced holes is at least equal to or greater than the sheet thickness to prevent tooling damage and material deformation.
Precision sheet metal fabrication requires tighter dimensional control, more consistent bend angles, better feature alignment, cleaner surfaces, and greater part-to-part repeatability. It typically involves controlled laser cutting, CNC bending, precision welding, dedicated fixtures, detailed inspection, and documented quality control. Conventional sheet metal fabrication generally focuses more on basic structural functionality and less demanding tolerances.
Typical laser-cutting tolerances range from ±0.1 mm to ±0.2 mm. CNC bending tolerances are generally ±0.2 mm to ±0.5 mm for linear dimensions and ±0.5° to ±1° for bend angles. Actual tolerances depend on material type, thickness, part size, bend geometry, and feature location. Critical dimensions and tighter tolerances are evaluated individually according to your drawings.
TENGHUI processes sheet metal in thicknesses ranging from approximately 0.3 mm to 20 mm. The available thickness range depends on the material and manufacturing process. Laser cutting, CNC punching, bending, rolling, and welding requirements are reviewed according to the part geometry and material specifications.
Use consistent bend radii, appropriate bend reliefs, and adequate distances between holes, edges, and bend lines. Avoid placing critical features too close to bends, as material stretching and springback may affect their final position. Material grade, thickness, grain direction, bend radius, and tooling selection should all be considered during design. Our engineers can review your CAD files and provide DFM recommendations before production.
We control welding distortion through suitable joint design, controlled heat input, optimized welding sequences, dedicated fixtures, and intermediate dimensional inspections. TIG, MIG, or spot welding is selected according to the material, thickness, structural requirements, and cosmetic expectations. Post-weld grinding, straightening, or additional machining can be evaluated when required.
Yes. Powder coating, anodizing, painting, and metal plating add measurable thickness to part surfaces and may affect holes, threads, mating features, and assembly clearances. Critical areas can be masked, plugged, or dimensionally compensated before finishing. Surface finish requirements should therefore be specified during the quotation and DFM review stages.
Our inspection process may include incoming material verification, first-article inspection, in-process dimensional checks, and final inspection. Calipers, micrometers, height gauges, angle gauges, thread gauges, and CMM equipment are used according to part requirements. Dimensional inspection reports, material certificates, and surface-finish documentation are available upon request.
Your drawings should specify material grade and thickness, dimensional tolerances, bend angles and radii, welding requirements, hardware specifications, surface finish, cosmetic requirements, and inspection standards. We recommend providing a 3D CAD model (STEP/STP) together with a fully dimensioned 2D drawing (PDF/DXF) to prevent manufacturing ambiguity.
Yes. TENGHUI can combine laser cutting, bending, welding, hardware insertion, and assembly with CNC-milled or CNC-turned components. This hybrid manufacturing capability is suitable for products that require fabricated sheet metal structures together with tight-tolerance holes, machined interfaces, precision mounting features, or custom inserts.
If you have any questions or would like to book a session please contact us.
Once we receive your design files, our senior manufacturing engineers will manually perform a comprehensive DFM review and deliver an accurate, optimized quote within 24 hours.
