Dear,
Distortion occurs when the Stress occurs due to Thermal Expansion or contraction exceed the Yield strength of material.
Factors affecting distortion, are:
1)Parent material properties
2)Amount of restraint
3)Joint design
4)Part fit-up
5)Welding procedure
Controls:
1) Preheating
2) Use of Stiffeners,Welding Jig & Fixtures, Flexible clamps.
3) Intermittent Welding process
You can control the distortion by keeping these points in mind .
You are recommended to use ER 309 L.
Regards,Vineet Kumar
On Thu, Mar 10, 2011 at 4:48 PM, praveen nair <praveen_nair9894@yahoo.co.in> wrote:
dear experts,
we have to make a rectangular type of furnace, in that we have to weld SS304 bars into CS plate from both sides and chances of distortion is more, plate thickness comes around 16mm and bars of 10 mm, client requirement in MIG or TIG welding,
which process is better MIG or TIG to reduce distortion...??
Can i use ER308 filler wire..?
and methods for reducing distortion. We are doing stitch welding mainly
praveen nair
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