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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Posted to alt.machines.cnc,rec.crafts.metalworking
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Indexable turning tools, inserts, ekc..
Awl--
I'm starting to get involved with making low-end turning tools, and have a few Qs regarding how people actually use them, and relative merits of design. For example, so far I've made simple left-hand cutting tools, with triangular screw-type inserts, .600 vertex-to-vertex, about 1/8 thick. Now I"m making boring bars with clamp-type triangular inserts. I would think that for general cutting, square or even round (which I've seen in use on huge "wheel truing" machines), would give the most bang for one's cutting buck, in terms of overall usable cutting edges/points. Generally speaking, of course, as certain shapes are better for certain jobs--facing, threading, etc. Do job shops use round inserts? Why/why not? I'm also curious about clamping vs. screwing insert. What are the pros/cons of these methods? I would imagine the insert w/ a hole is more expensive, but the tool itself is easier to make, and it seems that a thru-screw is more secure than a clamp. But mebbe holding power is less of an issue, than, say, in an endmill/toolholder. Thoughts? -- ------ Mr. P.V.'d (formerly Droll Troll), Yonkers, NY Stop Corruption in Congress & Send the Ultimate Message: Absolutely Vote, but NOT for a Democrat or a Republican. Ending Corruption in Congress is the *Single Best Way* to Materially Improve Your Family's Life. The Solution is so simple--and inexpensive! entropic3.14decay at optonline2.718 dot net; remove pi and e to reply--ie, all d'numbuhs |
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