Machining has the advantages of low cost and high precision, so it is a commonly used processing method at present, especially for large workpieces, the use of mechanical processing has incomparable advantages, but what are the conditions that need to be paid attention to in the machining process?

1. When the workpiece is too high, tools of different lengths should be used for roughing in layers. After roughing with a large knife, a small knife should be used to remove the remaining material.

2. Use flat-bottomed knives to process planes, and use less ball knives in order to reduce processing time; if there is a slope and it is an integer, use a sloped knife for processing.

3. Reasonable setting of machining tolerances, so that the machining accuracy and computer calculation time can be balanced with each other, and more processes can be done to reduce the time for empty tools.

4. If the hardness of the blank material is high, up-cut milling should be selected; if the hardness of the blank material is low, down-cut milling should be selected. Up-cut milling is preferred for roughing, and down-cutting is preferred for finishing.

5. Machining equipment The tool material with good toughness and low hardness is suitable for rough machining, and the tool material with poor toughness and high hardness is suitable for finishing.