51吃瓜

?????? ????? ?????? ? ???????? ?? ??????????? ??? ????? ??????? ???? ??? ?? ????????? ?? ???? ?? ?? ???? ???? ?? ??????? ????? ??????? ??? ?? ?????? ???. ?? ???? ????? ???? ?????? ????? ???? ???? ??? ?? ?????? ???? ???? ?? ????? ???. ??? ?? ??????????? ?? ?????? ????? ?????? ???? ???? ??????? ????? ???? ??????? ?? ???????? ??????? ?? ???? ????? ???? ???? ???.

????? ??????? ???? ?? ??? ?? ??????? ???? ???? ??? ???? ?????? ????. ???? ????? ???? ????? ? ????? ????? ????? ????. ??? ??? ???? ????? ????? ???? ????.

When selecting punching machines, stamping processing plants should add up the punching force, unloading force, bending force, and top rod force of the entire set of molds, multiply by a safety factor of 1.3, and the selected punching machine tonnage should be greater than or equal to this result to ensure rationality. Let's take a look at a formula below: F=LTσbf

1. L ?? ??? ?? ??? ??? ??????. ???? ????? ??? ?? ????? ???? ???? ??? ???? ??? ?? ??? ?? ??? ??? ???? ??? ????? ???? ??? ?? ?????? ??? ?? ???.

2. T ?? thickness of the material refers to the thickness of the material, which is the same as above in millimeters, and f is the punching coefficient, usually taken as 1.3;

3. σ b ?? ???? ??? ???? ???? ???? ????? ????? ?????

???????? ?? ?? ???? ????? ???? ????? ?????? ???? ?? ?? ?????? ??? ??????? ????? ??? ???? ??? ???? ?? ?????? ???. ???? ????? ?? ?? ???? ?? 9800 ????? ???? ?? ??????? ?????? ?? ?????? ????. ???? ?? ???? ?? ??? ????? ??????? ? ????? ???? ???? ?????? ???? ? ?????? ????? ??? ??? ?? ?? ?? ????? 0.7 ????? ???? ?? ??????? ?????? ?? ?????? ????.

??? ????? ?? EMAR Mold Co., Ltd. ???? ??????? ?????? ????? ?? EMAR? ???? ??? www.sjt-ic.com ???? ?????