Generally speaking, Wuxi CNC machining process mainly includes the following contents:

(1) select and determine the parts and contents for NC machining;

(2) process analysis of NC machining for part drawings;

⑶ process design of NC machining;

(4) mathematical processing of part drawings;

(5) prepare processing program sheet;

(6) make control medium according to the program sheet;

(7) verification and modification of procedures;

(8) first piece trial processing and on-site problem handling;

(9) finalization and archiving of NC machining process documents.

In order to improve the degree of production automation, shorten the programming time and reduce the NC machining cost, a series of advanced NC machining technologies have been developed and used in the aerospace industry. Such as computer numerical control, that is, small or microcomputer is used to replace the controller in the numerical control system, and the software stored in the computer is used to perform the calculation and control functions. This soft connected computer numerical control system is gradually replacing the initial numerical control system. Direct numerical control is to directly control multiple numerical control machine tools with one computer, which is very suitable for small batch and short cycle production of aircraft. The ideal control system is an adaptive control system that can continuously change machining parameters. Although the system itself is very complex and expensive, it can improve machining efficiency and quality. In addition to the improvement of NC system and machine tool in hardware, another important aspect of the development of NC is the development of software. Computer aided programming (also called automatic programming) is that after the programmer writes the program in NC language, it is input into the computer for translation, and the computer automatically outputs perforated tape or tape. The widely used NC language is apt language. It is generally divided into main processing program and post-processing program. The former translates the program written by the programmer to calculate the tool path; the latter translates the tool path Part processing program of NC machine tool with trajectory. NC machining is to write programs on the computer before machining the workpiece, and then input these programs into the machine tool controlled by computer program for mandatory machining, or directly write instructions on the machine tool control panel controlled by computer program for machining. The processing process includes: tool walking, tool changing, speed change, direction change, parking, etc., which are all completed automatically. NC machining is an advanced means of modern mold manufacturing and processing. Of course, NC machining means are not only used for mold parts processing, but also widely used.