Taper has to be 1/3 with respect to the thickness difference. The width of the weld can be included in the taper.
From: asad azmi [azmiasadayub@gmail.com]
Sent: 14/08/2010 13:48 ZE3
To: materials-welding@googlegroups.com
Subject: [MW:6493] but welding of unequal thickness member as per UW-9 OF ASME SEC VIII DIV 1
Dear All,
Good Day.
Please inform me what will be the Minimum length of the taper for butt weld between plates of 10 mm and 20mm Thickness.
Please refer Fig. 2 of the attachment and inform me--
whether length of taper will be distance between edge of plate ( The point from where tapering is statring ) to root face of the bevel i.e L
OR
Length of taper will be from edge of plate ( The point from where tapering is statring ) to the point where thickness of the thicker member becomes equal to thickness of the thinner member i.e L1
What is the maximum angle allowed for tapering.( please refer Fig. 1(a) of the attachment)
Thanks in advance.
Regards
Asad
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