View Single Post
  #12  
Old 06-02-2018, 07:59 AM
Rick Mullin Rick Mullin is offline
Member
 
Join Date: Mar 2012
Location: Malvern,PA
Posts: 157
Default

I agree with Cass that you can over heat causing the puddle to percolate. Although I have experienced that, my experience with an occlusion that has erupted has been about oxide contamination.

In the certification courses that I have taken for aluminum MIG, ramp down, tailing off and allowing the gas post purge to complete is always a serious consideration. I realize aluminum is different than steel but I would think that the same rules would apply.

The new advances in welders, both MIG and TIG, when used to their potential have eliminated so many of the operator error issues making it much easier to produce a strong and attractive weld. I would like to think that I am a good welder but I have yet to out smart my new machine with all of it's software.
__________________
Rick
Reply With Quote