Stainless steel parts processing explains the reasons for the failure of mechanical parts

Stainless steel parts processing explains the reasons for the failure of mechanical parts

According to stainless steel parts processing manufacturers, there are many reasons for failure. In actual production, part failure is rarely caused by a single factor, and is often the result of a combination of several factors. In summary, it can be divided into four aspects: design, material, processing, installation and use. The possible reasons are as follows:

1. The first reason for the design is the failure of parts due to the unreasonable structure and shape of the design. For example, there are obvious stress concentration sources in the high-stress area of ​​the parts (various sharp corners, gaps, too small transition fillets, etc.; the second is the parts Errors in the estimation of working conditions, such as insufficient estimation of possible overloads during work, resulting in insufficient load-bearing capacity of the designed parts.

2. Material reasons. Improper selection of materials is the main reason for material failure. The most common is that designers only make decisions based on the conventional performance indicators of the material, and these indicators do not reflect the strength of a certain type of failure of the material; the defects of the material itself (such as shrinkage, porosity, pores, inclusions, etc.) Microcracks, etc.) also cause parts to fail.

3. Reasons for processing The introduction of stainless steel parts processing, due to poor processing technology control will cause various defects and cause failure. For example, improper control of the heat treatment process leads to overheating, decarburization, insufficient tempering, etc.; poor forging process, overheating or overburning phenomenon, etc.; poor cold working process causes too low finish, deep knife marks, grinding cracks, etc. Failure of parts.