Metal pretreatment for resistance spot welding of aluminum

Details Metal pretreatment for resistance spot welding of aluminum Metal pretreatment for resistance spot welding of aluminum

1984-05-02

1985-10-08

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

2191171, 2041415, B23K 1116, C25F 100

Patent

active

045462291

ABSTRACT:
A process is described for preparing aluminum sheet for resistance welding, which increases the useful life of the welding electrodes used for welding the thus prepared sheet. The process comprises the steps of: (a) treating both surfaces of the sheet portion to be welded to remove the non-uniform mill finish oxide layer and provide clean surfaces, and (b) providing a thin oxide layer on one cleaned surface and a thicker oxide layer on the other cleaned surface of said sheet, thereby creating a differential in oxide thickness between the surfaces of the sheet and hence a differential in surface resistance.

REFERENCES:
patent: 2040618 (1936-05-01), Mason
patent: 3584187 (1971-06-01), Majetich et al.
patent: 4365134 (1982-12-01), Eager et al.
patent: 4484060 (1984-11-01), Frye
R. F. Ashton and D. D. Rager, "An Arc-Cleaning Approach for Resistance Welding Aluminum", Welding Journal, Sep. 1976, pp. 750-757.
Patrick, "Overview of Recent Alcoa Joining R&D," in Joining of Aluminum, Detroit, May 12, 1983, A Welding Tech. Workshop (1983).

Affiliated with

Also associated with

Rating

Metal pretreatment for resistance spot welding of aluminum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Metal pretreatment for resistance spot welding of aluminum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal pretreatment for resistance spot welding of aluminum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2221392