During the stamping die process, the following common problems may be encountered:
Die gap problem:
Problem description: The die gap is too small or too large. It is usually recommended that the total die gap be 20% to 25% of the material plate thickness. Inappropriate gaps may cause product defects, such as excessive burrs, die deformation, etc.
Prevention and solution: Regularly check and adjust the die gap to ensure that the gap value is within a reasonable range. Use special tools for precise measurement and adjustment.
Convex and concave die centering problem:
Problem description: The centering of the convex and concave die is not good, which may cause serious die wear and affect product quality and die life.
Prevention and solution: Strengthen the precision control of the die guide assembly to ensure that the accuracy of the die base, die guide assembly and turret sleeve meets the requirements. Regularly use the core rod to check and adjust the centering of the machine tool turret and mounting seat.
Excessive punch temperature:
Problem description: Excessive punch temperature may cause die damage, mainly due to overheating of the punch caused by continuous long-term stamping of the same die.
Prevention and solution: Reasonably arrange the production plan to avoid long-term continuous operation of the die. When necessary, use a cooling system to reduce the mold temperature.
Mold grinding and wear problems:
Problem description: Improper mold grinding methods may cause mold annealing and increased wear. The mold is also prone to different wear amounts on each side of the punch during use.
Prevention and solution: Use the correct grinding method and demagnetization treatment to maintain the sharpness of the mold edge. Regularly check and replace severely worn mold parts.
Waste rebound and blockage problems:
Problem description: Waste rebound and blockage may cause mold damage and production interruption.
Prevention and solution: Use special anti-carrying dies, increase the gap between dies, install strippers and other measures to reduce waste rebound. Clean and maintain the mold to avoid waste blockage.
Spring fatigue damage problem:
Problem description: Mold spring fatigue damage may cause mold damage and production interruption.
Prevention and solution: Regularly check the fatigue strength of the mold spring or unloading sleeve, and replace the damaged spring in time. Regularly maintain and replace the mold spring.
Operation and maintenance issues:
Problem description: Improper operation and insufficient maintenance may lead to mold damage and low production efficiency.
Prevention and solution: Strengthen operator training to ensure that the correct operating procedures are followed. Develop and implement regular mold maintenance plans to keep the mold in good condition.
In order to solve these problems, in addition to the above-mentioned prevention and solution measures, the following general measures can also be taken:
Regularly conduct a comprehensive inspection and evaluation of the Stamping Die to promptly discover and deal with potential problems.
Use high-quality mold materials and heat treatment processes to improve the durability and stability of the mold.
Use advanced mold design and manufacturing technology to optimize the mold structure and improve the precision and performance of the mold.
Introduce automation and intelligent technology to improve the automation and intelligence level of mold production and reduce the impact of human factors on mold quality.
