Lathe processed parts It is a part of mechanical processing. There are two main processing forms: one is to fix the turning tool to process the unformed workpiece in rotation; The other is to fix the workpiece and carry out precision machining through high-speed rotation of the workpiece and horizontal and vertical movement of the turning tool (tool holder). NC lathe processing is usually composed of control system, servo system, detection system, mechanical transmission system and other auxiliary systems

The materials usually processed by lathe are free cutting steel and copper. The free cutting steel has high sulfur S and phosphorus P. The sulfur and manganese exist in the steel in the form of manganese sulfide, while the manganese sulfide in [3]

The materials commonly used in modern lathe processing use aluminum alloy materials. The density of aluminum alloy materials is greatly reduced compared with the density of iron and steel materials. Moreover, the lathe has low processing difficulty, strong plasticity, and greatly reduces the weight of products, which also greatly shortens the time for lathe to process parts. With the reduction of cost, aluminum alloy has become a favorite in the field of aviation accessories.

1. It is easy to ensure the accuracy of each processing surface of the workpiece; During processing, the workpiece rotates around a fixed axis, and all surfaces have the same rotation axis, so it is easy to ensure the coaxiality between processing surfaces;

2. The cutting process is relatively stable; In addition to discontinuous surfaces, the lathe processing process is generally continuous, unlike milling and planing, the cutter teeth cut in and out several times in a single cutting process, resulting in impact;

3. It is suitable for finishing of non-ferrous metal parts; For some nonferrous metal parts, due to the low hardness and good plasticity of the material itself, it is difficult to obtain a smooth surface by other processing methods;

4. Simple tools; Turning tool is a simple kind of tool, which is easy to manufacture, sharpen and install, so it is convenient to select a reasonable angle according to specific processing requirements