Electric heating – Metal heating – For bonding with pressure
Patent
1997-06-30
1998-10-06
Shaw, Clifford C.
Electric heating
Metal heating
For bonding with pressure
219 56, 219 591, 2191171, B23K 1124
Patent
active
058180087
ABSTRACT:
An apparatus and method for resistance welding tubular parts is disclosed. The apparatus includes a weld gun having displaceable electrodes with contact faces engaging the parts. The contact faces are designed to distribute the forces applied to the parts by the electrodes to prevent deformation and to hold the parts together steadily in order to minimize undesired electrode displacement. A test computer monitors the amount of electrode displacement occurring as a result of penetration of the parts into each other during welding. When the displacement between the electrodes falls within a predetermined displacement range, which is indicative of a proper weld between the parts, the computer cooperates with a weld controller to terminate the welding power, thereby inhibiting any substantial further penetration of the parts. The apparatus and method is suitable for tube-to-tube and wire-to-tube applications commonly performed in the manufacture of automobile seats.
REFERENCES:
patent: 2467636 (1949-04-01), Stoudt et al.
patent: 2967228 (1961-01-01), Tindall
patent: 3433921 (1969-03-01), Peterson
patent: 3581047 (1971-05-01), Mitchell, Jr.
patent: 3842235 (1974-10-01), Opprecht
patent: 4214142 (1980-07-01), Crosby et al.
patent: 4296304 (1981-10-01), Defourny
patent: 4317980 (1982-03-01), Goodrich et al.
patent: 4441006 (1984-04-01), Machida et al.
patent: 4447700 (1984-05-01), Cohen
patent: 4461944 (1984-07-01), Cohen
patent: 4542277 (1985-09-01), Cecil
patent: 4684778 (1987-08-01), Cecil
patent: 4795875 (1989-01-01), Urech
patent: 4841113 (1989-06-01), Hamada et al.
patent: 4861959 (1989-08-01), Cecil
patent: 4970361 (1990-11-01), Fuse
patent: 4984171 (1991-01-01), Tsujii
patent: 5220145 (1993-06-01), Cecil et al.
patent: 5225647 (1993-07-01), Dufrenne
patent: 5288968 (1994-02-01), Cecil
patent: 5360156 (1994-11-01), Ishizaka et al.
patent: 5376766 (1994-12-01), Higgins
patent: 5393950 (1995-02-01), Killian
patent: 5645738 (1997-07-01), Cecil
C.L. Tsai et al., Modeling of Resistance Spot Weld Nugget Growth, Welding Research Supplement, Feb. 1992, pp. 47-54, published in New York, NY.
David Bacon, Controlling Resistance Welds With Deflection Feedback, Square D Company, Sep. 11, 1991.
A.E. Bentley, Control of Pinch Welding Uses Quantitative Feedback Theory, Welding Journal, Jun. 1991, pp. 51-63, Livermore, California.
C.L. Tsai et al., Analysis and Development of a Real-Time Control Methodology in Resistance Spot Welding, Welding Research Supplement, Dec. 1991, pp. 339-351, published at The Ohio State University.
Ariel Stiebel et al, SAE Technical Paper Series, SAE The Engineering Resource For Advancing Mobility, Feb. 1986, pp. 1-17, published in Detroit, Michigan.
C.L. Tsai et al., Analysis and Development of A Real-Time Control Methodology in Resistance Spot Welding, SAE Technical Paper Series, Feb.-Mar. 1991, pp. 1-18, published at Ohio State University.
LandOfFree
Apparatus and method for resistance welding tubular parts does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for resistance welding tubular parts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for resistance welding tubular parts will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-80699