When sheet metal is cut in a shear, the sheet is bent up and down on either side of the cut.
Guillotines and shears are rated on the thickness of mild steel sheet they will cut, and for stainless steel in a guillotine you de-rate by a half, the approximate ratio of the material shear strengths.
With a shear, the plate bending could be what limits the performance. As the force required to bend the sheet ( without permanent deformation ) depends on young's modulus, which is essentially the same for both mild and stainless steel, no de rating would be necessary.
Has anybody got information on the sheet capacity on mild steel for a shear suitable for cutting 3mm thick 304 grade stainless steel sheets ?
-- Jonathan
Barnes's theorem; for every foolproof device there is a fool greater than the proof.
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