Welding induced deformation: Any technique against?
Welding induced deformation: Any technique against?
(OP)
We often have to specify thin flanges and thin webs(about 1/4 of an inch or roughly 6mm) in built up I sections.
Complaint is when you weld up the parts together at the shop, ugly deformations result as is well known
I wonder if there is a way against this, because these thin plates tend to be very useful in most of our work.
respects. And additional thanx to all pals who helped out in my last post.
IJR
Complaint is when you weld up the parts together at the shop, ugly deformations result as is well known
I wonder if there is a way against this, because these thin plates tend to be very useful in most of our work.
respects. And additional thanx to all pals who helped out in my last post.
IJR





RE: Welding induced deformation: Any technique against?
My handy book: "The Procedure Handbook of Arc Welding", by the Lincoln Electric Co. lists the following to control distortion:
1. High-deposition electrodes, automatic welding, and high welding currents tend to reduce the possibility of distortion.
2. The least amount of weld metal, deposited with as few passes as possible, is desirable.
3. Welding should progress toward the unrestrained portion of the member, but backstepping may be practical as welding progresses.
4. Welds should be balanced about the neutral axis of the member.
5. On multipass double-V joints, it may be advisable to weld alternately on both sides of the plate.
6. Avoid excessive prestressing members by forcing alignment to get better fitup of the parts.
7. Joints that may have the greatest contraction on cooling should be welded first.
RE: Welding induced deformation: Any technique against?
Low heat input processes such as Gas Metal Arc Welding (GMAW) or Gas Tungsten Arc Welding (GTAW)...MIG and TIG, respectively, offer lower distortion than Shielded Metal Arc Welding (SMAW) process.
RE: Welding induced deformation: Any technique against?
Al...
RE: Welding induced deformation: Any technique against?
RE: Welding induced deformation: Any technique against?
Al...