Flash butt welding method

Details Flash butt welding method Flash butt welding method

1984-02-07

1985-03-19

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

219104, B23K 1104

Patent

active

045061343

ABSTRACT:
A joint is made between two pieces of steel which have been preheated to a temperature To (.degree.C.) near their abutting surfaces by subjecting first to flashing and then to upsetting. When the ultimate flashing rate is V (mm/sec.), a current whose density I (A/mm.sup.2) is not lower than ##EQU1## is passed during the upsetting process to melt the abutting surfaces. With a mean upsetting rate of not lower than 50 mm/sec., only the molten metal is rapidly squeezed out from the abutting surfaces. Then, the upset current is cut off while applying a final upsetting force that is as low as under 5 kg/mm.sup.2.

REFERENCES:
patent: 3435182 (1969-03-01), Rietsch
patent: 4164638 (1979-08-01), Ulmer

Affiliated with

Also associated with

Rating

Flash butt welding method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flash butt welding method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flash butt welding method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-754547