Carbide insert help

Bluechipx · Dec 9, 2017

I need the insert ordering numbers for a very small triangle insert for a Graflex boring head. The insert has an I.C. of .187,.093 thick, any corner radius at this time and that "should" be 1.5 according to literature, but when I order 1.5 size, I get an insert that is much bigger with (1.5) clearly marked on the box.

MattiJ · Dec 9, 2017

TCMT or what insert type?

Smallest semi-common triangle insert I'm aware is ISO TCMT 06... so that would be TCMT 1.2 according to Sandvik website. tcmt 6 t1 4-uf 515
TCMT 1.5 looks to be as good as non-existent.

Are you sure that your "oversize" inserts are not "1.5" = 0.094" thickness ie like these:
tcmt 2(1.5)1-ur 4225

CarbideBob · Dec 9, 2017

Inserts under .250 IC in the standard system have a different numbering system.
In a 10 degree positive no hole triangle with . 015 R this would be a TPEE-631.
Note the extra E.
Bob

Bluechipx · Dec 10, 2017

MattiJ said:
TCMT or what insert type?

Smallest semi-common triangle insert I'm aware is ISO TCMT 06... so that would be TCMT 1.2 according to Sandvik website. tcmt 6 t1 4-uf 515
TCMT 1.5 looks to be as good as non-existent.

Are you sure that your "oversize" inserts are not "1.5" = 0.094" thickness ie like these:
tcmt 2(1.5)1-ur 4225

The insert is a small triangle, positive clearance with a chamfered center hole, .187 i.c. .093 thick. I'll give the 1.2 size a look.

Bluechipx · Dec 10, 2017

CarbideBob said:
Inserts under .250 IC in the standard system have a different numbering system.
In a 10 degree positive no hole triangle with . 015 R this would be a TPEE-631.
Note the extra E.
Bob

Bob, I have tpee's and they would be perfect except I need a chamfered center hole. I think we are getting close now to a insert part size number, so I'm keeping my fingers crossed!

Bluechipx · Dec 10, 2017

I think I have my answer, tpmt 1.2 seems to at least look like the insert I wanted, I have ordered them and either I will have a perfect fit or they will go in my ever growing pile of mis-matches.
Thanks for the help guys!!

Search

Largest Manufacturing Technology Community on the Web

Search

Carbide insert help

Bluechipx

Hot Rolled

MattiJ

Titanium

CarbideBob

Diamond

Bluechipx

Hot Rolled

Bluechipx

Hot Rolled

Bluechipx

Hot Rolled

Similar threads