Manual PP&PET strapping tool

Packaging steel strip by blanking clearance to make the transition to clean cutting

by：Hongmei 2020-04-12

Packaging steel strip by blanking clearance to make the transition to clean cutting thin plate punching die clearance of 2 smaller values ( Generally take 0. 05 - 0. 1 mm) , or even close to zero. For the same pair of sheet stamping dies when strike materials of different thickness t, its relative gap will be smaller with the increase of t C, the nature of the blanking by large gap to make the transition to normal clearance, clearance; When 2 reduce to zero, is similar to Yu Guangjie blanking. For example, take the clearance value Z = 0. 6 mm, when t = 0. 3 - 0. 8 mm, relative clearance C = Z/t * 100% = 8% 20%, belong to large and normal clearance blanking clearance; t = 0。 8 - 1. 2 mm, C = 5% 8%, belongs to the normal or small clearance blanking clearance; And t = 1. 2 - 3 mm, is 2% 5%, belongs to the small clearance blanking.

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