CNC turning of plastic materials

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CNC turning of plastic materials

Turning of CNC turning plastic parts means that lathe processing is a part of mechanical processing. Lathe processing mainly uses turning tools to turn workpieces of rotating CNC turning plastic parts.

 

Here is the content list:

Production of CNC turning plastic parts

CNC turning plastic parts cutting amount selection

 

Production of CNC turning plastic parts

CNC turning plastic parts are generally produced by direct forming methods, but some CNC turning plastic parts are difficult to form directly or require high precision and must be cut. CNC turning plastic parts generally use metal processing equipment. Since the performance of plastics and metals are quite different, and there are many types of plastics, and their performances vary greatly, the cutting of CNC turning plastic parts has its characteristics.

 

CNC turning plastic parts cutting amount selection

Increasing the cutting speed of CNC turning plastic parts can shorten the cutting time, increase productivity, and the cutting force will not increase, and the surface roughness of CNC turning plastic parts is hardly affected by the cutting speed. However, the increase in the cutting speed of CNC turning plastic parts will significantly increase the cutting temperature. The CNC turning plastic parts will produce thermal expansion, thermal deformation, and even discoloration, which will affect the quality of the CNC turning plastic parts processed, and the tool wear will increase and the durability will decrease (cutting Increase the speed by 10%, and the tool durability will be shortened to 40%~60% of the original). This will increase the auxiliary time for tool change, tool sharpening, and tool setting adjustments, and the productivity of CNC turning plastic parts will decrease, so it must be controlled. Cutting speed of CNC turning plastic parts.

When the feed rate and cutting depth increase, the cutting time of CNC turning plastic parts is shortened, and because of the improved heat dissipation conditions, the cutting temperature and tool durability of CNC turning plastic parts are not greatly reduced, and it will not cause tool change or grinding. The auxiliary time for knives is significantly increased, so productivity can be improved. However, as the feed rate and depth of cut of CNC turning plastic parts increase, the cutting force of CNC turning plastic parts will increase significantly (the feed rate is doubled, the cutting force will increase by about 70% to 80%, and the depth of cut will increase. Double the size, the cutting force is almost doubled), it is easy to deform CNC turning plastic parts and affect the processing quality, and even cause the workpiece to be scrapped. The surface roughness value of CNC turning plastic parts will also increase with the increase of the feed. Therefore, the appropriate feed and depth of cut should be selected when processing CNC turning plastic parts. This will increase the auxiliary time for tool change, tool sharpening, and tool setting adjustments, and the productivity of CNC turning plastic parts will decrease, so it must be controlled.

 

JST has several CNC machining centers with top 10 international first-line brands and complete testing equipment to meet customer requirements for CNC turning plastic parts. In addition, we could also manufacture the custom parts of casting & forging, metal fabrication, and plastic injection parts. Our company has adhered to the principle of Innovation, Diversity, and International.


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