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Carbide Parting inserts

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Dave Harding 101/02/2014 23:55:31
148 forum posts
4 photos

The main reason for carbide parting inserts grenading is that they mustn't be below centre. If they're below centre at the end of the cut, the work climbs up over them and simply pulls the end off the tip. A few (up to 4) thou above centre will protect the tip unless you're on a really rigid setup, when you can use less. Then They'll cut very well.

Thanks for that tip I was told previously to line them up central to the work that could explain why they went boom.

Involute Curve02/02/2014 23:46:05
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337 forum posts
107 photos

Dave Harding 114/02/2014 19:14:50
148 forum posts
4 photos

I think I have got this tool holder and carbide insert thing sorted now. I have acquired several different holders and boxes of different inserts. A couple of different size parting blades and different size carbide parting inserts. Just need a project now.

Involute Curve14/02/2014 21:15:33
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337 forum posts
107 photos

Anything in mind?

Ian S C15/02/2014 10:50:52
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7468 forum posts
230 photos

Build a 3D printer, and give the lathe to a museumcheeky. Sort out the most suitable tool size, probably one that is fairly narrow, anything over 3 mm you probably don't need. When I started, my parting tool was a bit of power hacksaw blade. Ian S C

Dave Harding 117/02/2014 19:52:24
148 forum posts
4 photos

I went to Scorton on Saturday no sign of any body selling any thing to do with Lathe tooling. There was a Lady there selling length's of bar stock in all sorts of different materials and profiles so not a total waste of time.

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