- Ellyn@tenghui-proto.com
- +86-18666887162
High-strength, structurally sound, and leak-proof welding for custom metal fabrications. Leveraging advanced TIG, MIG, and robotic spot welding, Tenghui delivers exceptionally clean weld seams and precise assembly alignment with rapid turnaround.
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Welding introduces intense localized heat that can easily warp sheet metal. At Tenghui, we utilize custom-designed welding jigs, modular fixtures, and copper heat sinks to distribute heat evenly, keeping critical part dimensions well within specified assembly tolerances.
For custom enclosures, tanks, and fluid-delivery systems, a weld must be completely sealed. We offer rigorous non-destructive testing (NDT), including pneumatic air-leak testing, hydrostatic pressure testing, and dye penetrant inspection (DPI) to guarantee absolute watertightness.
We understand that external welds on enclosures must be invisible. Our skilled finishing team provides professional post-weld grinding, blending, and polishing, delivering a seamless, continuous surface that is perfectly ready for powder coating or painting.
For high-reliability sectors like medical, fluid handling, and industrial automation, joint integrity is non-negotiable. Tenghui offers comprehensive non destructive testing for welds (NDT) to verify structural and physical soundness.
For pressure vessels and sealed chassis, we perform specialized leak testing for welded enclosures—including pneumatic bubble testing and dye penetrant inspection (DPI)—to identify micro-porosity and guarantee 100% airtight and watertight performance under operational stress.
Welding thin-gauge assemblies inherently introduces localized thermal stress. To successfully execute sheet metal welding distortion control, both product design and manufacturing techniques must align.
We highly recommend incorporating staggered stitch welds instead of continuous beads, and utilizing stiffening ribs or flanges to mechanically reinforce flat spans. Our engineering team reviews your CAD designs during the DFM phase to advise on joint placement, helping to prevent welding warpage and maintain flat, high-tolerance profiles before production begins.
When fabricating exterior panels, display bezels, or luxury enclosures, the aesthetic quality of the seam is just as critical as its mechanical strength. Our finishing department specializes in cosmetic weld grinding and finishing to prepare parts for final surface treatment.
By carefully blending weld beads using multi-stage abrasive discs, we create seamless, invisible weld joints on sheet metal stainless steel and aluminum. This expert prep work ensures that once powder-coated or anodized, the transition between folded flanges is completely flawless and visually continuous.
Welding thin sheets can easily cause thermal warping. We mitigate this by designing custom clamping fixtures to hold parts rigidly in place, applying heat sinks, and using precise stitch welding or pulsed TIG settings to minimize the total heat input into the material.
For airtight and watertight assemblies, we offer several testing methods. These include pneumatic pressure testing (air-leak testing) for enclosures, hydrostatic testing for tanks, and liquid penetrant inspection (LPI) to detect any micro-cracks on the weld surface.
Yes. Depending on your design requirements, we can provide professional post-weld finishing. This includes grinding down weld beads flat, blending the corners seamlessly, and applying satin brushed or polished finishes, making the joint virtually invisible on stainless steel and aluminum parts.
Resistance spot welding is highly suitable for overlapping thin steel sheets, particularly low-carbon steel and stainless steel. While aluminum and brass can be spot-welded, their high thermal and electrical conductivity require significantly higher energy and specialized equipment adjustments.
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.