Stretching parts may cause various quality problems, some of which are common and their solutions include:
The shape and size of the stretched part do not match: this may be caused by uneven material flow, improper mold design, or incorrect operating parameter settings. The solution includes optimizing mold design, adjusting operating parameters such as stamping speed, punching pressure, etc., and improving material fluidity.
Poor surface quality: The surface of the stretched part may have defects such as scratches, dents, and protrusions. This may be due to rough surface of the mold, insufficient lubrication, poor material quality, or improper operation. The solutions include improving the surface quality of the mold, increasing lubrication, improving material quality, and optimizing operating parameters.
Dimensional accuracy not meeting standards: The dimensional accuracy of stretched parts may be affected by various factors such as material properties, mold accuracy, and operating parameters. The solution includes improving material performance, optimizing mold design, adjusting operating parameters, and strengthening process control to ensure dimensional accuracy meets requirements.
Cracking of stretched parts: This may be caused by insufficient material strength, unreasonable mold design, or improper setting of operating parameters. The solutions include improving material strength, optimizing mold design, such as increasing fillet radius and reducing draft angle, as well as adjusting operating parameters, such as reducing stamping speed and increasing punching pressure.
Here are some common solutions and suggestions for the above issues:
Optimize mold design: The mold is a key equipment for the production of stretched parts, and its design quality directly affects the quality of the stretched parts. Therefore, it is necessary to optimize the design of the mold to ensure a reasonable structure, accurate dimensions, and smooth surface.
Improving material quality: Material quality is an important factor affecting the quality of stretched parts. Materials with stable quality and excellent performance should be selected, and necessary inspections and screening should be carried out.
Strengthen process control: In the production process, strict control should be carried out on each link to ensure standardized operation, accurate parameters, and normal equipment operation. At the same time, inspection and testing should be strengthened to promptly identify and solve problems.
Improving employee skill level: Employees are important participants in the production of stretch parts, and their skill level directly affects product quality. Therefore, it is necessary to strengthen employee training and skill enhancement, and improve their operational level and quality awareness.
In summary, solving the quality problem of stretched parts requires multiple approaches, including optimizing mold design, improving material quality, strengthening process control, and improving employee skill levels. Only in this way can the quality of the stretched parts be stable and meet the requirements.
