Electric heating – Metal heating – For bonding with pressure
Patent
1988-12-16
1990-12-04
Pellinen, A. D.
Electric heating
Metal heating
For bonding with pressure
219 611, B23K 1102
Patent
active
049755560
ABSTRACT:
A cylindrical wheel rim blank has a longitudinal seam defined by a pair of longitudinal edge portions each of which is clamped between upper and lower jaws of a respective clamping assembly. The two clamping assemblies are urged laterally together to press the two longitudinal edge portions together, and welding current is introduced at the seam through the lower jaws to effect the weld. The upper jaws are at the bottom of cantilevered horn members around which the rim blank is mounted. The lower jaws are urged upwardly toward the cantilevered upper jaws to effect the clamping function. Structure is provided to equalize the clamping pressure exerted against the upper jaw along the length thereof and, if desired, to introduce a bias into the upward pressure exerted through the lower jaw. There is a mechanism to provide different, predetermined spacings between the clamping assemblies as different steps in the operation. Circuitry is provided to produce a reversing, pulsating DC welding current.
REFERENCES:
patent: 4110577 (1978-08-01), Spisak
patent: 4187406 (1980-02-01), Fend et al.
patent: 4562326 (1985-12-01), Tan et al.
patent: 4649253 (1987-03-01), Zollinger
Fencl Vernon R.
Tan Archie
Evans Geoffrey S.
Grotnes Metalforming Systems, Inc.
Pellinen A. D.
LandOfFree
Butt welding machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Butt welding machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Butt welding machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-884360