When processing plastic parts, it is difficult to form directly or to achieve high precision when cutting. Taking into account the type of plastic, tool material and processing characteristics, how to process plastic with CNC machine tools to obtain high quality and high productivity. From the material selection question, we can understand how to make plastic achieve a good surface finish in CNC plastic processing and processing skills.
CNC acrylic processing more skills
Generally speaking, metal processing equipment can be used to cut plastic parts. Because the properties of plastics and metals are very different, and there are many types, the properties of different plastics are also very different, and improper processing can cause many problems. For example, local overheating caused by small heat capacity, poor thermal conductivity, and elastic deformation caused by excessive stress will affect the surface quality and dimensional accuracy of the plastic.
1. Tool materials mainly include high-speed steel, cemented carbide, diamond, etc. When cutting ordinary plastics, the first two tool materials can be selected. Compared with the two, high-speed steel has better grinding ability. Choose high-speed steel cutters and carefully grind them, the cutters will be sharper, but not as durable as cemented carbide cutters.
2. Reduce the cutting force and temperature as much as possible, and choose a suitable angle to improve the productivity and durability of the tool, thereby saving processing costs. Always keep the tool sharp and stop automatically when the material is not hard enough.
3. Use suitable clamps to clamp the plastic or acrylic block to avoid damage caused by excessive pressure. It is recommended to use a softer cushion between the fixture and the part to avoid leaving fixture marks on the surface of the material.
4.The control tool is always in motion to prevent debris from melting onto the machine parts. The cooler can be used to lower the temperature and clean the chips.
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