Blog

A technical guide to molded rib geometry: interpret supplier thickness guidance, compare a hypothetical section, review the physical mold and plan structural, dimensional and appearance checks.

A technical guide to injection molding gate design, covering location restrictions, gate concepts, flow and weld-line review, a checked geometric example, and approval evidence.

A practical snap-fit design guide covering cantilever strain, assembly force, material behavior, mold release, fatigue, and molded-part validation.

Select draft for textured surfaces and deep features, calculate taper at functional dimensions, and build a practical CAD and trial-validation checklist.

A practical injection mold transfer checklist covering ownership, condition, machine fit, production continuity, process validation and formal release at the receiving plant.

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 on target, from overbending to simulation-based compensation.

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 and real cost per million strokes.

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, joining and the tests that prove it.

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 qualification.

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 worked selections from our toolroom.