3D Surface + Assembly Mating Face

Difficulty: controlling sintering distortion on a 3D curved surface while holding ±0.05mm on an assembly mating face - these two requirements stacked demand 3D shrinkage-compensation calculations be finished at the mold-design stage, or the curve/plane relationship shifts after sintering. Complex 3D surfaces are also prone to uneven internal cohesion during forming.

Solution: 3D Moldflow analysis predicts shrinkage per region, with the mold reverse-engineered from the compensated geometry; staged packing balances cavity fill during injection, paired with a dedicated sintering fixture, staged debinding, and a zoned temperature-controlled sintering curve for even curve support.