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Re: Choice between intermittent and continuous fillet weld in Crane girder ( I beam with channel top)

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On Oct 8, 2007, at 11:58 AM, Sanjay Verma wrote:

Fabricator is insisting in providing intermittent fillet weld in Crane girder (I-beam with channel top).
Each end of a weld is a perfect place for crack initiation. The fillet size is smaller, there's the possibility of arc strikes and similar defects especially when the current is stopped suddenly. Stitch welding makes more ends and greatly increases the possibility of flaws and subsequent fatigue failures. Maybe you could make your fabricator a counter offer that you'll buy the stitch welding if he pays for the additional strength calculation and drawing changes and does an LP or MP check on each individual weld.

Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw(--nospam--at)skypoint.com   | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania 1864)
http://www.skypoint.com/~chrisw/



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