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Rifles, Reloading, Optics, Equipment
Gunsmithing
Action truing fixture
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<blockquote data-quote="ntsqd" data-source="post: 1833219" data-attributes="member: 93138"><p>My friend in the power generation industry tells me that SS to carbon steel is best done with 309 filler rod. Apparently they do that sort of thing quite often, and some of those welds have to endure some pretty extreme conditions. (There's at least 10,000 ways to die in a power plant.)</p><p></p><p>Cast ferrous is a carp-shoot. Sometimes it's cast steel, which welds fairly nicely if given consideration for it's sometimes large thermal mass. If it is cast iron you're in for it. There literally 1000's of different cast irons. Some weld beautifully with the proper filler rod, others won't weld at all no matter what process and/or filler rod is used.</p><p></p><p>All of which is to say that unless I knew exactly what the back plate was made from I wouldn't try to weld to it. Weld your tool body to a plate and BOLT that to the back plate. I'd key that plate so that it can't move in X or Y on the back plate or rotate about the Z either. Then the bolts only hold it in place.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 1833219, member: 93138"] My friend in the power generation industry tells me that SS to carbon steel is best done with 309 filler rod. Apparently they do that sort of thing quite often, and some of those welds have to endure some pretty extreme conditions. (There's at least 10,000 ways to die in a power plant.) Cast ferrous is a carp-shoot. Sometimes it's cast steel, which welds fairly nicely if given consideration for it's sometimes large thermal mass. If it is cast iron you're in for it. There literally 1000's of different cast irons. Some weld beautifully with the proper filler rod, others won't weld at all no matter what process and/or filler rod is used. All of which is to say that unless I knew exactly what the back plate was made from I wouldn't try to weld to it. Weld your tool body to a plate and BOLT that to the back plate. I'd key that plate so that it can't move in X or Y on the back plate or rotate about the Z either. Then the bolts only hold it in place. [/QUOTE]
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Action truing fixture
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