Laser welding seam with reduced end-crater and process for...

Details Laser welding seam with reduced end-crater and process for... Laser welding seam with reduced end-crater and process for...

2007-11-06

2007-11-06

Evans, Geoffrey S. (Department: 1725)

Joints and connections

Molded joint

Fusion bond, e.g., weld, etc.

C219S121640

Reexamination Certificate

active

11344809

ABSTRACT:
A laser weld seam with reduced end crater and a process for production thereof are provided. The seam end is provided at a location, which exhibits a excessive material relative to the surrounding surface or thereby, that the seam towards the seam end exhibits a counter-running direction change of its preferred direction, which is designed in such a manner, that as a consequence of the interaction between cooling forward and counter-running seam a backfill of the melt towards the seam end occurs.

REFERENCES:
patent: 3686465 (1972-08-01), Urbanic
patent: 7091444 (2006-08-01), Becker et al.
patent: 2006/0163221 (2006-07-01), Makase et al.
patent: 196 27 913 (1997-02-01), None
patent: 101 62 452 (2003-07-01), None
patent: 62-110885 (1987-05-01), None
patent: 2003 145 285 (2003-05-01), None
patent: 2003-290951 (2003-10-01), None
patent: 2004-98122 (2004-04-01), None

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