How to reduce brittleness of Bismuth:Zinc:Tin Alloy of composition 56:04:40?

07 July 2016 1 10K Report

The Bi-Zn-Sn alloy shows cracks edge when sheared. If at all annealing is to be done, at what temperature should it be done to reduce brittleness of the above mentioned alloy?

Larry Wilkerson

For shearing, look into adiabatic presses. Magnetic pulse drives punch at 2,500 mm/sec. and should eliminate cracks and burrs without annealing. Also yields 100% shear over wall thickness.

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