Patent ID: 9155129
Filing Date: 2015-10-06
Classification: B29C,B29K,H05B,H05K,Y10T

Abstract:
1. A stamping die for hot stamping a material, comprising a profiled stamping surface ( 8 , 18 ), wherein the stamping die ( 1 , 11 ) comprises at least one thermally insulating substrate ( 2 , 12 ), on which an electrically conductive structure ( 4 , 5 , 6 , 14 , 15 ) comprising a heating resistor ( 4 , 14 ) is arranged, and in that the electrically conductive structure ( 4 , 5 , 6 , 14 , 15 ) is covered by an electrically insulating film ( 7 , 17 ), wherein the surface of the electrically insulating film ( 7 , 17 ) comprises the profiled stamping surface ( 8 , 18 ) and the electrically insulating film ( 7 , 17 ) covers at least the heating resistor ( 4 , 14 ) such that the electrically insulating film ( 7 , 17 ) with the stamping surface ( 8 , 18 ) is electrically heated by the heating resistor ( 4 , 14 ), and wherein the thermally insulating substrate ( 2 , 12 ) is an oxidic ceramic and/or a metal oxide and the thermally insulating substrate ( 2 , 12 ) has a thermal conductivity less than 5 W/(m K).