Method for preventing the discoloration of areas around indentat

Details Method for preventing the discoloration of areas around indentat Method for preventing the discoloration of areas around indentat

1984-03-30

1985-08-20

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

219118, 219 912, B23K 1116

Patent

active

045366373

ABSTRACT:
A method for preventing discoloration of the area around an indentation in spot welding is provided in which the weld zone and its surrounding area are masked with a non-oxidizing gas such as argon gas, helium gas, nitrogen gas or a mixture of argon gas and carbon dioxide gas from ambient atmospheric air and spot welding is carried out in the atmosphere of the non-oxidizing gas to prevent the discoloration from occurring at the weld zone of a metal sheet under the influence of heat during spot welding.

REFERENCES:
patent: 1804054 (1931-05-01), Miller
patent: 3789184 (1974-01-01), Piepers et al.
patent: 4154999 (1979-05-01), Pinfold et al.

Affiliated with

Also associated with

Rating

Method for preventing the discoloration of areas around indentat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preventing the discoloration of areas around indentat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preventing the discoloration of areas around indentat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-562613