Abstract: A method for manufacturing a blade of a cutting tool, in particular, a knife. In order to create a process with which influence is to be exerted in a targeted manner on the technological material properties of the blade and material chipping to be avoided, as well as permitting economical manufacturing, a process is carried out by treating a blade base material with a laser in a first process step along a curve contour determined by the final edge of the blade and, in a second process step, the edge of the blade is formed, in particular, cut to shape, along the curve contour determined by the final blade form inside the laser-treated area, or the blade base material is machined in a first process step by punching or trimming to form the final edge, subsequently the laser treatment is performed in a second process step on the narrow side forming the final edge and finally, in a third process step, the blade is formed, in particular, ground, inside the laser-treated area.
Type:
Grant
Filed:
July 7, 2000
Date of Patent:
September 2, 2003
Assignee:
Zwilling J.A. Henckels Atiengesellschaft
Abstract: A handle on blades of knives, or the like, with a cross section which is substantially elliptical over its entire length and having the longer axis of the ellipse in the plane of the knife blade. The cross section reduces towards both ends of the handle in such a manner that the two ellipse axes of the ellipse cross sections of the offset end of the handle and of the free end of the handle are shortened by approximately the same amount. In this connection the two more narrowly curved ellipse arcs develop two vertex lines extending in longitudinal direction and lying in the plane of the knife blade.