English to Portuguese Tech/Engineering Metallurgy / Casting Soldas

Backgouging is the process to remove the weldment in the root to the sound metal and weld it from backside to make it honmogenous connection.
www.linkedin.com/.../backgouging-is-process-remove-weldment...

The removal of base or weld metal from the weld root side of a joint to sound metal, otherwise, the weldment may not be completely penetrate.

The elimination of excess material from both weld metal and base metal on the opposite side of a partly welded joint; a groove or bevel is formed in order to facilitate complete joint penetration. http://www.answers.com/topic/back-gouging

No texto:
"Except as provided in 3.13.5 and Figure 3.4 (B-L1-S), groove welds without steel backing, welded from one side, and groove welds welded from both sides, but without "backgouging", are considered PJP (Partial Joint Penetration) groove welds."

Aqui há outro fórum que traduziu, em espanhol, como "acanalado del espaldar".

Obrigada!