Improvement Measures for Defects in Powder Metallurgy Blank Pressing Process

Improvement Measures for Defects in Powder Metallurgy Blank Pressing Process

Do you know what the defect improvement measures are in the process of powder metallurgy blank pressing? Powder metallurgy billets have many defects, but the defects that cause product scrap and can not be found are uneven density and blank cracks. So what are the measures to improve the defects in the process of powder metallurgy blank pressing? Zhongwei Precision Powder Metallurgy Plant would like to share:

1. Select a reasonable demoulding method, such as first or after a certain step, protective demoulding, etc.

2. Calculate a reasonable mold structure to ensure that the mold has sufficient stiffness and minimize the springback difference between mold parts.

powder metallurgy

3. The rack has good stability to ensure that the die parts will not have recycling effect when stamping is completed.

4. Use the powder with good flow performance, and design reasonable pressing methods (unidirectional, bidirectional, floating, friction, etc.).

5. Follow the principle of uniform distribution of multi-step blank density - the powder filling coefficient is the same or similar, the compression ratio is the same, and the compaction speed is the same.

6. According to the shape of the product, reasonable density distribution shall be adopted when adjusting the mold to improve the strength of the blank.

The above is an introduction to the defect improvement measures in the powder metallurgy blank pressing process. In a word, the causes of billet defects are very complex, often caused by a variety of factors. Therefore, in mold debugging and actual production, it should be analyzed item by item according to the specific situation and improved to prevent the occurrence of waste products. If there is a demand for powder metallurgy processing, you can call Zhongwei Precision.