How can the lack of fusion defects be prevented ?

How can the lack of fusion defects be prevented ?

  • use a sufficiently wide joint preparation
  • select welding parameters (high current level, short arc length, not too high a welding speed) to promote penetration into the joint side wall without causing flooding
  • ensure the electrode/gun angle and manipulation technique will give adequate side wall fusion
  • use weaving and dwell to improve side wall fusion providing there are no heat input restrictions
  • if arc blow occurs, reposition the current return, use AC (in MMA [SMA] welding) or demagnetise the steel

Join For PCN Welding Inspector Level 2 Program for Knowing More on Welding Technology and It's Details

http://decibelnde.com/weldinginspector.php

Popular posts from this blog

Facts About NDT Training

Comparison of the use of rutile and cellulosic electrodes Knowledge Sharing From Decibel.

ASNT NDT Level 3 Preparatory Classes at Decibel Pattambi, Kerala, India