Experimental Study: Surface Roughness Analysis on Insert Molds with Grinding Wheel Types Variant

Abstract

In the era of industrial digitalization (Industry 4.0), more and more products were made from polymer (Plastic) material which was produced in the hope that it could be recycled or zero waste. When during mass production, especially product defects in the quality of surface roughness, the results of the injection mold process for plastic materials become one of the issues that cannot be ignored at this time. The amount of market demand for the quality of demand can be a determinant of the success of a production process. By using material ASTM P2 Mold Tool Steel as an insert mold that must be maintained the level of smoothness of the surface. One of them is by using surface grinding process with variations of grinding wheel of  Pink Aluminum Oxide (PA) - Vitrified (V) type with Medium (48 & 60) and Fine (80) grain types which will be tested with a surface roughness tester. After testing, it was found that using PA 80.8.V grinding wheel type with cutting fluid type dromus oil had the most subtle surface roughness value, which is 0.119μm.