Method of producing a cutting blade and cutting blade thus produced

Abstract

A method of fabricating a blade for a cutting tool, in particular for a knife, a pair of scissors, a saw, a household appliance, or indeed an industrial tool, the blade (1) being made of steel or an alloy of stainless steels and having at least one cutting edge (3; 103) extending over at least a portion of its periphery, the method being characterized in that it comprises the following steps: a) making a blade body (2; 102) possessing at least one free edge (F; 4) provided in the vicinity of the location of the or each cutting edge (3; 103); b) projecting a make-up material (M; M′) in the form of a powder (5; 105) onto at least one free edge (F; 4), the hardness of the make-up material being greater than the hardness of the blade body; c) subjecting the make-up material powder (5; 105) to a laser beam (8) so as to form a bead (6) or strip (109) on at least a portion of said free edge (4; F); and d) forming the cutting edge (3; 103) in the bead (6) or strip (109) of make-up material (M; M′). Cutting tools fitted with a blade made in this way present great resistance to wear of the cutting edge of the blade.

Dependencies are inferred from the claim text.