the mold surface roughness is a very important technical parameter in mold making, because the surface finish of the molding area directly affects the surface roughness of the plastic part. A range of polishing tools is used to meet a different surface finish requirement. The society of plastics industry classifies mold surface finishes into 12 grades in 4 categories:
A—mirror image, it is typically polished with diamond paste, it’s surface finish Ra is 0—0.0001mm, applicable for plastic parts whose surface should have high luster. In general, mirror image is further classified into A1, A2, and A3.
B—smooth, it is usually polished with sand paper. It’s surface finish is between 0.0001—0.0002mm, applicable for plastic parts with a typical surface requirement. This category can be further classified into B1, B2, and B3.
C—Semi-smooth.it is polished with whetstone. It’s surface finish is between 0.0002—0.0008mm, applicable for plastic parts without a specific surface finish requirement. This category is also further classified into C1, C2, and C3.
D—General. Sand blasting is commonly used. This category is also further classified into D1, D2, and D3.
the surface roughness of plastic components obtained from disparate processing situations was measured and compared with the surface roughness of inserts. The surface roughness results are in good agreement with the Heat transfer coefficient value and can be used to interpret the cause of variation. The results of this study will be beneficial for understanding the heat transfer process comprehensively, predicting the temperature field, arranging the cooling system, and offering precise Heat transfer coefficient for numerical simulation.
Polishing technology is very critical to determine quality and performance of the final products and occupies up to 30~50% of the whole die manufacturing time. Polishing purpose is to reduce the surface roughness to a desired amount and keep form accuracy. However, polishing is a kind of complex material removal operation, and the surface roughness after polishing is related to many factors such as
machining parameters: polishing pressure, feed rate, tool speed, polishing times, grit of abrasive tool etc.The mould polishing is a complex material removal process under various polishing conditions. The process parameters (polishing pressure, tool speed, feed rate, polishing times, pose angle, etc.) and material parameters (workpiece material, abrasive tool material) have effects on surface roughness.
Mold Surface Roughness technology for injection molding surface finish, Molding Surface Roughness, injection mold finish, and injection molding mold polishing surface finishes.
Mold Surface Roughness technology for injection molding surface finish, Molding Surface Roughness, injection mold finish, and injection molding mold polishing surface finishes. it is very important for mold and molding