EP 0271481 B1 19910327 - METHOD AND BLANK FOR PRODUCING TOOLS
Title (en)
METHOD AND BLANK FOR PRODUCING TOOLS
Publication
Application
Priority
AT 330086 A 19861212
Abstract (en)
[origin: EP0271481A2] A method for producing cutting tools and a blank produced according to the method for machine blades made of hot-rolled flat steel with a sloping surface forming the cutting edge. The aim is to increase the service life of these machine blades and to reduce the production costs. This is achieved in that a flat profile is rolled as a trapezium- or parallelogram-type profile, in which case, on the sloping surface resulting in cross-section in an acute angle to the side surface, the roll tab, forming due to overfilling of the roll groove in the final pass to form the finished profile, forms a homogeneous material structure in the region of the cutting edges.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
DE IT SE
DOCDB simple family (publication)
EP 0271481 A2 19880615; EP 0271481 A3 19881012; EP 0271481 B1 19910327; AT 390221 B 19900410; AT A330086 A 19890915; DE 3768926 D1 19910502
DOCDB simple family (application)
EP 87890278 A 19871204; AT 330086 A 19861212; DE 3768926 T 19871204