Engineering insights
Guides, data and case studies from our tooling engineers
Practical articles on stamping dies, injection molds, tooling spare parts and sourcing from China, written by the engineers who design and build them in Dongguan.
102 articles9 case studiesUpdated Oct 17, 2026
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Bipolar Plate Stamping Case Study: 3 Forming Problems We Solved in 0.1 mm Steel
A fuel cell stack developer's metallic bipolar plate was cracking at the channel corners and failing flatness. A two-stage forming die, new radii and a calibrated...
Terminal Stamping Case Study: A 1,200 SPM Progressive Die Success Story
An automotive connector maker needed four times the output from its terminal stamping line and a capable process for PPAP. This is how our die team...
Springback in Metal Stamping: 7 Best Ways to Control It in the Die
Why stamped parts spring back after bending, how to estimate springback from material and bend geometry, and the die design methods that hold angles and flanges...
Carbide Punch vs Tool Steel Punch: 6 Factors for the Best Choice
Carbide punch or tool steel punch? A practical comparison of D2, M2, PM high speed steel and tungsten carbide grades: hardness, toughness, clearance, wear life, regrinding...
Copper Busbar Manufacturing: 8 Best Practices for EV Battery Packs
How a copper busbar for an EV battery pack is specified and made: material and temper, current sizing, skin effect, stamping and bending tolerances, plating, insulation,...
Press-Fit Pin Guide: 9 Best Practices for Reliable PCB Connections
An engineering guide to the press-fit pin: compliant zone design, PCB hole and plating specs, insertion and retention forces, materials, progressive die stamping and IEC 60352-5...
Mold Steel Guide: 7 Best Grades for Injection Molds (P20 to S136)
How to choose mold steel for an injection mold: hardness, polish, corrosion resistance, heat transfer and cost for P20, 718H, NAK80, S136, H13 and D2, with...
Field Implementation: Tooling Manufacturer in Dongguan
began searching for a tooling manufacturer Dongguan could deliver a robust, high-precision die that would eliminate defects, extend tool life,
Quality Assurance Review: Stamping Die Products Tooling
The six-stage QA framework behind a reliable stamping die: DFM review, material verification, ±0.002 mm machining, CMM inspection and PPAP documentation.
Technical Framework: Multi-Station Progressive Metal Forming
Precision manufacturing is being asked for more complex metal components, at higher volumes, with repeatability that never wavers.
Margin Optimization: Sustainable Injection Mold Design OEM
How conformal cooling, hot runners, all-electric presses and closed-loop recycling cut energy use, scrap and per-part cost in OEM injection mold programs.
Technical Framework: Multi-Station Progressive die Metal Forming
Multi-station progressive die metal forming explained: how one tool stacks blanking, piercing, bending and forming at 1,200 SPM to ±0.002 mm.
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