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Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel too small for 1/2" threadding?
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<blockquote data-quote="DSheetz" data-source="post: 1704450" data-attributes="member: 91783"><p>There are a number of outside influences that play into the grain structures of any given metal .2 1/4 chrome molly has a temperature range for working it as does 416 Stainless steel . They will both work harden as well once you have changed the micro structure then they will need to be heat treated to naturalize the grain structure . Cutting threads will most likely not alter the grain structure by heat but can work harden the metal a good sharp properly ground cobalt cutting tool with a good quality cutting fluid and paying attention to the depth of each cut will not compress the metal or over heat it . Using a die to cut the threads can and will often compress the metal and cause heat to build up as well as not give you a relief at the shoulder where the threads end . It takes time and experience to learn how to grind cutting tools and use them properly that is why we have trade schools and apprenticeship programs for craftsmen as well as all the differing metallurgy that goes into the trades that go into being a good crafts person .</p></blockquote><p></p>
[QUOTE="DSheetz, post: 1704450, member: 91783"] There are a number of outside influences that play into the grain structures of any given metal .2 1/4 chrome molly has a temperature range for working it as does 416 Stainless steel . They will both work harden as well once you have changed the micro structure then they will need to be heat treated to naturalize the grain structure . Cutting threads will most likely not alter the grain structure by heat but can work harden the metal a good sharp properly ground cobalt cutting tool with a good quality cutting fluid and paying attention to the depth of each cut will not compress the metal or over heat it . Using a die to cut the threads can and will often compress the metal and cause heat to build up as well as not give you a relief at the shoulder where the threads end . It takes time and experience to learn how to grind cutting tools and use them properly that is why we have trade schools and apprenticeship programs for craftsmen as well as all the differing metallurgy that goes into the trades that go into being a good crafts person . [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel too small for 1/2" threadding?
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