Charles Edward Sharp

US Patent:

45770883, Mar 18, 1986

Filed:

Jun 27, 1984

Appl. No.:

6/625239

Inventors:

Charles M. Sharp - Landing NJ

Assignee:

SWS Inc. - Landing NJ

International Classification:

B23K 2602

US Classification:

219121LD

Abstract:

A method of forming a continuous laser butt weld between two members is disclosed. The method comprises providing two members to be butt welded, positioning respective edges of the members in abutting contact with the two members being canted slightly with respect to one another so that the butt joint formed by the edges is open toward a first side of the member, with the edges contacting one another toward a second side of the members opposite the first side, and directing a high energy density laser beam at the butt joint from the first side of the members so that at least a portion of the laser beam extends into the open side of the butt joint to the edges, while urging the edges of the two members in the direction of the butt joint for butt welding the members.

US Patent:

47526696, Jun 21, 1988

Filed:

Dec 16, 1986

Appl. No.:

6/942224

Inventors:

Charles M. Sharp - Landing NJ
Ronald D. Young - Blairstown NJ

Assignee:

PRC Corporation - Landing NJ

International Classification:

B23K 5600

US Classification:

219121LG

Abstract:

An improved method of laser processing of a material by directing a laser beam against the material comprises providing the beam with a power waveform with respect to time characterized by a plurality of peak power pulses and a predetermined CW power level between the peak power pulses such that the average beam power maintained is equal to or greater than the predetermined CW power level of the beam. The method is particularly adapted for cutting material such as aluminum, copper and stainless steel with improved cut quality at a relatively high cutting speed and for welding.