Gallery, Projects and General > How do I??

Carbide inserts.

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mattinker:
Does anyone have a link to a simple explanation about carbide inserts. So far I've used high speed steel, brazed carbide tooling and some insert tooling that turned up with the lathe, Recently I bought a second-hand boring bar which I think is an early Sandvick, but I can't find any references to it on the web!

Any help would be greatly appreciated! Cheers, Matthew

RotarySMP:
Carbide Depot has some useful info under there Technical rescources tab.
http://www.carbidedepot.com/formulas-bb-d.htm
Mark

mattinker:
Thanks Mark,
I've made some progress!!

So it's :-
A :- steel bar w/ coolant hole
25  ;- 1 5/6" ø
T ;- 12" long
S :- Screw Lock only
V :-  35°diamond
U  :--3°  endcutting
B :- 5°  relief
R :- Right hand
16 :- 16mm?

I am assuming that the 16 is 16mm as the imperial units don't match.

Based on the table for inserts on the same site:-

The insert is a
V  35°diamond
B  5° relief
Tolerance?
H Looks like a 70° to 90° Countersink
I don't understand the code for the length which looks like 16mm

Thanks again Mark, I'm getting somewhere!! Cheers, Matthew

chipenter:
16mm is the length of one side .

snub:
Here are some charts with imperial measurements, from KBC Tools.


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