Apparatus for blanking thin sheets using a punch having localized regions of hand and soft elastic material
AssigneeIsoform
InventorGabriel Deshet
Life of this patent
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Abstract
In an apparatus for blanking out a sheet material (1) between a punch (4) and a die (6) having a sharp edge (7), the punch (4) is formed by a heterogeneous composite elastic material having localized regions (4a) having a relatively higher hardness, and complementary regions (4b) having a relatively lower hardness.
Claims11
An apparatus for blanking out a sheet of material between a punch and die, said die having a sharp edge, said punch comprising a heterogeneous composite elastic material having localized regions having a relatively higher hardness and complementary regions having a relatively lower hardness for inducing differentiated stresses on the surface of the sheet to be blanked.
Dependencies are inferred from the claim text.