| | d15.1/d15.1m:2007 railroad welding specification cars and locomotives specifies ... metals thinner than 1/8 in includes sections on procedure and performance ... for use by rail vehicles recommends standards for the joining repair maintenance and ... and turnouts which further include switch points stock rails switch point guards ... spacer blocks connecting rods switch rods plates frogs and frog components ... welding processes include shielded metal arc welding gas metal arc welding ... bulletin #5 resistance welding control standard discusses weld controls timing diagrams ... input/output connections scr sizing and terminal markings explains voltage ...
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