Students majoring in mechanical engineering will study a course called metalworking practice in the first semester.
Specifically:
(1) casting, using sand, sandbox and samples as products;
(2) The forger forges a simple workpiece by himself, such as a code nail;
(3) Welding, electric welding and gas welding;
(4) turning, turning threads and other workpieces;
(5) milling workers, milling screws, keyways, etc. ;
(6) grinding and processing the surface;
(7) fitter, making a small hammer;
(8) CNC turning and milling, self-programming, using CNC turning and milling to process parts.
According to the specific types of problems, step disassembly/cause principle analysis/content expansion, etc.
The specific steps are as follows:/The main reasons for this situation are ...