Common reasons for the breakage of the punching needle during the production of metal stamping parts-hardware

The common causes of punching needle breakage during the production of metal stamping parts that cannot be missed and the solution [Hardware] In the process of stamping, especially punching, we often encounter punching needle breakage. When this kind of problem occurs, it is often the direct replacement of the punch needle, but the problem of the punch needle breakage cannot be solved fundamentally. Let the hardware technicians analyze the common reasons and solutions for the breakage of the punching needle in the production process of metal stamping parts for you: 1) The waste material generated will block the lower die. Solution: Re-modify the blanking hole, so that the waste can fall smoothly. 2) The fixed part (splint) and the guiding part of the punching needle. Solution: repair or re-cut the block to make the punching needle go up and down smoothly (return plate). 3) The closing height of the stamping die is set too low, causing the punching needle to enter the lower part. The part of the die is too long. Solution: Adjust the closing height of the punch to make the punching needle enter the lower die with a proper amount. 4) The unreasonable design of the material return plate causes uneven force on the punching needle. Solution: Redesign the gap between the stripping plate and the punching pin. 5) The design of the punching needle blade is too short, and it collides with the return plate during work. Solution: re-select the appropriate punching needle, or increase the length of the knife edge. 6) Strains and scratches appear on the surface of the punching needle, and the punching needle is not evenly stressed when the material is returned. Solution: Replace the punching needle with a new one. The above brief introduction, if you need to know more about metal stamping parts, please consult: 1892741511