Page 221 - Welding of Aluminium and its Alloys
P. 221

Description  Causes  metal, high restraint, high heat input (see  Chapter 2) Incorrect welder technique, lack of crater  Short longitudinal or star-shaped   fill crack in finish crater Incorrect filler metal, crack sensitive  Cracking in the HAZ or in  parent metal, high restraint, high heat  previously deposi











                Defect Name  Crater cracking  Liquation cracking  Oxide entrapment  Puckering  Tungsten or copper  inclusions  Stray arc strike  Spatter  Underflushing






           (cont.)

           Table 11.1  ISO 6520  Defect no.  104  100  303  3034  3041 (tungsten)  3042 (copper)  602  602  606
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