Shenzhen Alu Rapid Prototype Precision Co., Ltd.

Mold Cost and Durability:

Prototype molds are cheaper (aluminum vs. steel) but less durable, suitable for 100–1,000 cycles.

Use 3D-printed or silicone molds for very small runs to save costs.

Material Behavior:

PLA requires precise temperature control (mold at 20–40°C) due to its low heat resistance and stickiness.

Optimize injection speed and pressure to avoid shear stress, which can degrade materials like PLA.

Tolerances and Quality:

Injection molding achieves tight tolerances (±0.05–0.1 mm), ideal for production-like parts.

Vacuum casting offers ±0.2–0.5 mm, suitable for visual or low-precision prototypes.

Shenzhen Alu Rapid’s ISO 9001:2015 certification ensures consistent quality.

Speed vs. Cost:

Injection molding is faster for multiple parts but requires mold fabrication (days to weeks).

Vacuum casting or 3D printing is quicker for single units or complex designs.

Defect Prevention:

Ensure proper venting to avoid air traps or burn marks.

Control cooling to prevent warping or sink marks.

For PLA, use polished molds or release agents to ease demolding.