shielded arc welding
shielded arc welding
[′shēl·dəd ′ärk ‚weld·iŋ] (metallurgy)
Arc welding in which the electric arc and the weld metal are protected by gas, decomposition products of the electrode covering, or a blanket of fusible flux.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.