Usually the products that have just been developed or designed need to be prototyped. The first step is to verify the feasibility of the product. The most direct and effective way to find out the defects, deficiencies and disadvantages of the designed product is to improve the defects, until you can't find the shortcomings in the individual patterns.

At this point, usually a small amount of trial production is needed to find out the insufficient in the batch to improve. The designed product is generally not perfect or even unusable. Direct production will be scrapped once there are defects, greatly wasting manpower and material resources. Time and the general situation of the prototype is a small number of samples, the production cycle is short, the loss of manpower and material resources is small, and the shortcomings of product design are quickly found to improve and provide sufficient basis for product stereotype production.

1. Complete most or all of the procedures in one process and reduce the number of clamping of the workpiece.

2. When processing, it should be positioned as much as possible based on the drawing reference.

3. In the processing, as far as possible according to the material and size of the parts, select the most suitable tool for processing to reduce processing time.

4. In order to reduce the wear of the tool, the load of each axis of the machine tool and produce a better surface finish during processing, the milling is used as much as possible during processing.

5. During the processing, the program should be minimized as much as possible in order to reduce the wear and processing time of the machine.

6. Adjustable fixtures or simple fixtures should be used when processing single parts or small batch parts.

7. When processing large quantities of parts, special fixtures, tools, and inspection tools should be used, and the fixtures must be convenient, reliable, and a large number of fast clamping and positioning.

8. The same processing standard should be adopted when processing between processes.

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