scrap rebound in sheet metal processing is difficult to completely remove sheet metal stamping. it is a kind of stamping scrap that cannot be successfully discharged from the opening of the upper die, but instead fluctuates upward and rebounds to the surface of the furniture plate in the inner hole of the lower die, it can be prevented and improved. Next, I will provide a detailed explanation of the hazards posed by material‑ejection rebound in sheet‑metal fabrication when using CNC machine tools. The rebound force of scrap material can easily cause damage or failure to the press due to the conveyor belt’s raw materials.

sometimes, because of the scale of the waste, the overlap of the waste exceeds the yield limit of the mold, causing the lower mold to crack. In mass production, the failure rate caused by waste is significantly increased.

The mold gap and mold modulus are unscientific. When the mold in each process is stressed, the entry modulus of the numerical control machine tool is certain, and the entry modulus is small, which is very easy to cause the scrap to rebound.

That's all for this article. In fact, the overall regulations for sheet metal parts are not very high, only emphasis is placed on installation, and the standard for high-precision sheet metal parts is to strictly abide by dimensional tolerances. If the deviation kinetic energy parts are not closed, their dimensional tolerance requirements are also higher than the conventional level, so the requirements for high-precision sheet metal processing will be more stringent.