Dual hardness die

Details Dual hardness die Dual hardness die

B - Operations, Transporting

26

D

B26D 1/62 (2006.01) B23P 15/40 (2006.01) B26D 7/26 (2006.01) B26F 1/44 (2006.01) C21D 1/10 (2006.01) C21D 9/22 (2006.01)

Patent

CA 2358370

Generally, a rotary cutting die of the present invention for use in combination with an anvil roll to cut sheet material has a generally cylindrical body extending along a central axis between opposite first and second ends. The body has a Rockwell C scale hardness less than about 50. A cutting blade extends outward from the body to a tip adapted for cutting sheet material passing between the die and the anvil roll. First and second circular bearing surfaces are coaxially positioned adjacent one of the first and second ends of the body for engaging the anvil roll to maintain a predetermined spacing between the cutting blade tip and the anvil roll. The first and second bearing surfaces have a Rockwell C scale hardness greater than about 50.

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