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U.S. Department of Energy
Office of Scientific and Technical Information

Prevention of burn-back when tungsten arc (tack) welding small diameter tubes of differing wall thicknesses

Technical Report ·
OSTI ID:6928598

Tungsten arc tack welding two tubes of differing wall thicknesses resulted in defective welds due to a melt-back of the thinner-walled tube. To solve the problem, a heat sink was applied near the joint. The heat sink dissipates heat from the thin-walled tube, and a satisfactory weld is achieved.

Research Organization:
General Electric Co., St. Petersburg, FL (USA). Neutron Devices Dept.
DOE Contract Number:
AC04-76DP00656
OSTI ID:
6928598
Report Number(s):
GEPP-TIS-547
Country of Publication:
United States
Language:
English