What is the difference between turning, milling, planing, boring and other processing machines and how to distinguish them?

Usually, in the mechanical standards in the field of machining, according to the unified experience of various countries, we make the following determination for various common machining processes: 1. An external cylindrical object formed by the rotation of the workpiece and the radial or axial movement of the tool is called a lathe. Satisfiable machine tools include lathes and boring machines. 2. When the workpiece rotates or the cutter rotates, an inner cylindrical object is formed on the workpiece, which is called boring. Satisfiable machine tools include lathes and boring machines. 3. The cutter rotates, the workpiece is fixed, and the cutter rotates to form a shape that cannot be formed at any time, which is called' milling'. Satisfiable machine tools include boring machines, milling machines and high-strength drilling machines. 4. The geometric shape obtained by reciprocating motion on any machine tool is called "planing". Satisfactory machine tools include planer, slotting machine and gear shaper, except special machine tools, such as sawing machine, which cannot be classified as' planing'.