AIA/NAS 967-2012 pdf download RESISTANCE SPOT WELDING EQUIPMENT 3 PHASE
Purpose
This specification provides a standard for the manufacture,performance，reliability,inspection,and procurement of aThisseries of standard resistance spot welding machines。standard lists minimum requirements and is not to limitdesign advan ces.
Classification
The machines shall be of the following type, sizes,and classes.
Type
Press
Size
Class
Standard
Intended Use
The machines described by this specification are intended foruse within the aerospace industry for efficiently producingoptimum quality spot welds on ferrous and non-ferrous alloys.

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