First of all for everyone to clear up doubts, because a lot of friends who are new to this industry do not understand what is finishing, and why there will be primary processing and finishing.
The so-called forging finishing is a process of making the main surface of the workpiece meet the requirements of the drawing by using a special tool for more precise processing of semi-finished products. In the actual operation, there is no precision requirements of the parts, only rough processing can obtain the finished product; And for the parts with higher precision requirements need to set aside machining allowance in rough machining for further finishing.
Why can't a molding, and must be separated from the primary processing and finishing? This is because many of the workpiece is rough, hard shell and irregular end face. If the blank with different materials and different hardness is directly processed, it is easy to damage the tool, which will not only raise the processing cost but also affect the processing accuracy.