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Injection mold polishing techniques

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Draft angle injection molding

What is the draft angle? The draft angle is the amount of taper for molded or cast parts perpendicular to the parting line. It can be measured in degrees or mm/mm (in/in). Why Draft angle injection molding? Reduces the chance of damage to the part due to friction during release [...]

Injection Plastic Mold Polishing Operation Guideline

Injection Plastic Mold Polishing Operation Guideline Chart  Grade finished type Average Value (μm) Deviation (μm) Ra Center Average Roughness (μm) SPI No. Description over 200000# 0.07 0.062~0.082 0.003~0.01 A0 14000# 1 Diamond Buff 1 1~2 0.019~0.025 A0 10000# 2 Diamond Buff 2 1~3 0.02~0.028 A1 8000# 3 Diamond Buff 3 2~4 0.025~0.03 A1,A2 [...]

VDI 3400 VS SPI Finish Surface

SPI - VDI3400 surface roughness conversion | Minimum Drafting Angles EDM Mold Surface VDI 3400 Texture Surface finish VDI 3400 VDI texture mold standards SPI vs VDI finishes Surface roughness comparison chart VDI Mini draft angle chart VDI 3400 Depth Surface roughness conversion VDI 3400 ISO, VDI,ASA ISO/TC [...]