Mechanical processing is roughly divided into the following two methods:
①Forced feeding method:
Machining is carried out on an ordinary machine grinder, and the cutting depth and the accuracy of the workpiece are determined according to the dynamic accuracy of the machine tool. It is characterized by precise shape and high efficiency.
②Pressure feed method:
The abrasive tool is selectively processed on the protruding part of the workpiece surface, thereby improving the accuracy. When processing relatively simple shapes such as planes, balls, and cylinders, if you pay attention to the shape and accuracy of the abrasive tool, the machining accuracy can be better than the machining accuracy of the machine tool. The disadvantage is the lack of shape imparting property and the long processing time.
The most striking is the laser machining technology. It has great power in cutting hard-to-machine composite materials such as boron-epoxy, graphite-epoxy, polyaramid, etc. It can also be used for cutting aerospace materials such as titanium, titanium alloy, chromium alloy, high-strength steel, etc. Quartz glass and Si3N4 ceramics have much higher cutting efficiency than diamond grinding wheels, and are an ideal processing method
