What are the advantages and disadvantages of CNC machining?
CNC machining has the following advantages:
① The number of tooling is greatly reduced, and complex tooling is not required for processing parts with complex shapes. If you want to change the shape and size of parts, you only need to modify the part processing program, which is applicable to the development and modification of new products.
② The machining quality is stable, the machining accuracy is high, and the repetition accuracy is high, which meets the machining requirements of aircraft.
③ The production efficiency is high in the case of multiple varieties and small batch production, which can reduce the time for production preparation, machine tool adjustment and process inspection, and reduce the cutting time due to the use of the best cutting amount.
④ It can be used to machine complex surfaces that are difficult to be processed by conventional methods, or even some processing parts that cannot be observed.
CNC, also known as computer gong, CNCCH or CNC machine tool, is actually a name from Hong Kong. Later, it was introduced into the Pearl River Delta, which is actually a CNC milling machine.
It is a new processing technology. Its main work is to prepare processing programs, that is, to convert the original manual work into computer programming. Of course, experience in manual processing is required.
CNC, also known as machining center, has a wide range of applications, not limited to furniture production. Therefore, it is worth learning from the experience of various industries in the use of CNC. Here are the following points:
1. The speed of white steel knife shall not be too fast.
2. The copper workers should use less white steel knives for rough cutting and more flying knives or alloy knives.
3. If the workpiece is too high, it should be cut with knives of different lengths in layers.
4. After roughening with a big knife, use a small knife to remove the surplus material, and smooth the knife only when the surplus is consistent.
5. The plane shall be processed with flat bottom cutter and less with ball cutter to reduce processing time.
6. When the copper worker cleans the corner, first check the size of R on the corner, and then determine the size of the ball knife.
8. If the slope is an integer, the slope cutter shall be used for processing, such as pipe position.
9. Before each process, think about the remaining allowance after the previous process to avoid empty cutter or excessive machining.
10. Try to follow a simple cutting path, such as contour, grooving, single side, and less surrounding height.
11. When walking WCUT, those who can walk FINISH should not walk ROUGH.
12. When the profile light knife is used, rough polishing shall be carried out first, and then fine polishing. When the workpiece is too high, the edge shall be polished first, and then the bottom shall be polished.
