Page 104 - Welding of Aluminium and its Alloys
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Table 5.1a Fatigue classification of welded details
Description of Explanatory comments Examples showing crack sites BS 8118 BS 5500
detail Classification Classification
Transverse butt
weld
Weld machined flush 42 D
As welded with good 35 D
profile, weld blends
smoothly with the
parent metal, eg
automatic weld
Less desirable profile, 29 E
welds with peaky profile,
multiple stop/starts
Backing strip weld 24 F
without tack welds,
cracking from root
