Method of making knives

Details Method of making knives Method of making knives

1977-05-04

1979-04-03

Goldberg, Elliot A.

Electric heating

Metal heating

By arc

30340, 30125, 219101, B23K 1500

Patent

active

041479181

ABSTRACT:
A method of making knives in which a separate blade and handle are bonded together by electron-beam welding which reduces the susceptibility to corrosion at the weld area and thereby increases the knife life. In addition, the blade can be unhardened when welded, and hardened after welding to reverse any structural changes occurring in the metal adjacent the weld and thereby more reliably reduce the susceptibility to corrosion at the weld area. The step of hardening the blade after welding can be used to provide satisfactory corrosion resistance in knives where separate blades and handles are joined by other welding techniques such as electrical seam and oxyacetylene welding.

REFERENCES:
patent: 666012 (1901-01-01), Hirsch
patent: 1012088 (1911-12-01), Lee
patent: 1020158 (1912-03-01), Powers
patent: 3481038 (1969-12-01), Cooper
patent: 3911766 (1975-10-01), Fridolph et al.
patent: 3949186 (1976-04-01), Nakayama et al.
Why Use Electron Beam Welding?, J. Meier - Hamilton Standard.

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