What are the reasons for the failure of precision parts processing

During the processing of precision parts, products may be affected by quality for various reasons, leading to product processing failure. There are several reasons for this consequence, and now let's talk about the reasons for the failure of part processing. The reasons for product failure can be summarized into four aspects: materials, installation and use, processing and design.
​
1. Improper material selection is the main reason for material failure. It is common for designers to make decisions based solely on the conventional performance indicators of materials, and defects in the materials themselves are also the cause.

2. When installing and using parts that have already failed, excessive looseness, tightness, fixation, poor alignment, and improper operation can all cause failure in use.

3. In terms of processing, poor control of processing technology can lead to various defects and failures. If the improper control of heat treatment process leads to overheating, insufficient tempering, decarburization, etc. Phenomena such as overheating or burning. Poor cold processing technology can lead to low smoothness, deep tool marks, grinding cracks, and other factors that can lead to component failure.

4. The first reason for the design is due to the unreasonable structure and shape of the design, which leads to the failure of the parts, such as the presence of obvious stress concentration sources in the high stress zone of the parts. The second is an error in estimating the working conditions of the parts, such as insufficient estimation of possible overload during work, resulting in insufficient load-bearing capacity of the designed parts.