Process for producing a cutting die

Details Process for producing a cutting die Process for producing a cutting die

1996-11-18

1999-01-05

Rachuba, M.

Metal tools and implements, making

Blank or process

Die

76115, 76116, 419 31, 419 55, B21K 520

Patent

active

058551492

ABSTRACT:
A process for producing a cutting die having a metal base which carries a sharpened ridge extending along a predetermined path thereon, in which a supply of powdered metal and a laser beam are moved along the path so as to surface melt a thin layer of the metal base with the metal powder and thus form a band of fused metal powder along the path, this step being repeated to form additional layers metallurgically bonded to the base and to each other, until a ridge of metal is formed. The ridge is then sharpened to suit it for use in cutting. The ridge may have a top surface of harder material than the inner part of the ridge. The laser and powder delivery movements may be controlled by a CNC (computer numerical control) motion system. The invention includes novel dies produced by this process.

REFERENCES:
patent: 3089945 (1963-05-01), Connoy et al.
patent: 3991930 (1976-11-01), Ekerot
patent: 4848190 (1989-07-01), Doslik et al.
patent: 5048182 (1991-09-01), Robbins, III
patent: 5053090 (1991-10-01), Beaman et al.
patent: 5575185 (1996-11-01), Cox et al.
patent: 5640667 (1997-06-01), Freitag et al.
patent: 5697043 (1997-12-01), Baskaran et al.

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