Posted by P. KRIPALANI on April 06, 2008 at 10:05:39:
I am searching for a procedure on how to prepare
metallographic section of production witness specimen
required for Class A and Class B spot welds.
Metallographic examination is required to fullfil
the acceptance requirements for internal defects, maximum and minimum penetraion allowed. Refer paragraph 3.6.3 and subsection 3.6.3.1.2 of AMS-W-6858A