January 11, 2011
By: Professor R. Carlisle "Carl" Smith
'Welders may recognize that when porosity is present, the cause isn’t always the shielding gas, welding filler, or operator error. It can be caused by the steel production method, which can introduce porosity and other flaws."
A good although too brief IMHO, article covering metal production in relation to some of the metallurgical as well as the quality assurance/QC aspects involved...
Enjoy the read!
http://www.thefabricator.com/article/testingmeasuring/how-metal-production-affects-the-welding-processRespectfully,
Henry
