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SPI Mold Polishing Standards

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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 [...]

Mold-Tech Texture Drafting Angle

Mold Tech Texture Minimum Drafting Angle For Releasing(Demold) Injection mould tooling can be textured by different means, which may vary according to tool manufacture method, timescale, budget, material and supplier facility limitation. Aluminum tooling (and others) which is typically machined rapidly by a CNC process often uses bead, sand or vapour blasting [...]

SPI Surface Finish Standards

SPI Surface Finish Standards The SPI is that Society of the Plastics Industry  sets standard for plastics industry in the United States that identifies the cosmetic quality of plastics, Upmold uses  the SPI standard to define finish of plastic injection molded parts. There are twelve grades of finishes specified by the SPI [...]

Surface finish cross reference chart

Surface finish cross reference chart | sandpaper grit comparison chart Surface finish cross reference chart Surface finish Sandpaper grit conversion chart Standard Sandpaper & Whetstone  Grit Sizes Range Of Belts Conversion Chart Surface finish sandpaper grit comparison chart Upmold collected these data for your reference for plastic injection [...]

Mold Texture Technology

Mold Texture Technology TEXTURE DEPTH AND SIDEWALL DRAFT CONSIDERATIONS To assure clean ejection of your part, we suggest using a simple rule for determining draft: 1.5 – 2 degrees of draft per .001” in texture depth This rule is for sidewalls of the [...]

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 [...]

Agiecharmilles EDM Surface Finish Cross Reference Chart

Agiecharmilles EDM Surface Finish Cross Reference Chart EDM surface finish chart EDM mold texturing EDM mold finish, EDM mold surface finish EDM surface texture EDM surface finish chart EDM plastic finish EDM surface roughness EDM plastic molding Surface finish EDM VDI surface finish chart VDI surface finish Charmilles texture Charmilles Finish Charmilles [...]

VDI 3400 Surface Draft Angle

VDI 3400 Surface Draft Angle | VDI Draft Angle DA-PA = Drafting Angle for Polyamide DA-PC = Drafting Angle for Polycarbonate DA-ABS = Drafting Angle for Acrylonitrile-Butadiene-Styrol Glass-reinforced materials require more drafting. VDI Ra Rz, DA-PA DA-PC DA-ABS 12 0,40 1,5 0 1,0 0,5 15 0,56 [...]