Boring bar, which insert?

Boring bar, which insert?

This topic has 7 replies, 5 voices, and was last updated 4 March 2023 at 19:42 by DC31k.

Viewing 8 posts - 1 through 8 (of 8 total)

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4 March 2023 at 11:50 #20936
Andrew Tinsley
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@andrewtinsley63637
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4 March 2023 at 11:50 #636075
Andrew Tinsley
Participant
@andrewtinsley63637
I have a boring. bar which came with some tooling. It has the following on it

S-SR-SCLCR09 . Not easy to make out the lettering, The first S may be incorrect and the L is very indistinct. The insert has a diamond shape and has sides of 9mm and an 80 degree angle. It is retained by a T15 countersunk Torx screw.

I have looked up the meaning of some of the symbols and have concluded that the insert is an SCLCR09 type, although I am not certain. Can anyone tell me the correct designation for the inserts?

I don't wish to make an expensive mistake when ordering new inserts!!

Regards,

Andrew.
4 March 2023 at 13:02 #636084
Anonymous
The designator listed is a description of the type and hand of the boring bar, not the inserts it takes. I would expect the boring bar to take CC**09 inserts.

Andrew
4 March 2023 at 13:13 #636088
JasonB
Moderator
@jasonb
The code does give quite a bit of info about what insert the holder is intended for

Type of clamping S

Shape of insert, C

Clearance angle C

Edge length of insert 09

Only thing you don't get from that is corner radius and M or G tolerance
4 March 2023 at 15:26 #636111
Andrew Tinsley
Participant
@andrewtinsley63637
Thanks for the clarification gentlemen. Much appreciated.

Regards.

Andrew..
4 March 2023 at 17:33 #636131
old mart
Participant
@oldmart
I have just looked through my purchase history on ebay and can confirm that the inserts you require are CCMT09. They are also available in aluminium grade H01 which will be CCGT09. The inserts have a side measurement of about 9mm and are single sided with two acute cutting edges. There are tools made for turning which use the other two obtuse corners, which otherwise would be wasted.
4 March 2023 at 19:11 #636140
Andrew Tinsley
Participant
@andrewtinsley63637
Thanks Old Mart,

That is very useful info.

Andrew.
4 March 2023 at 19:42 #636144
DC31k
Participant
@dc31k
Please bookmark the following links:

https://www.cutwel.co.uk/blog/learn-the-boring-bar-iso-code-system.html

https://www.cutwel.co.uk/blog/learn-the-turning-tool-iso-code-system.html

Perhaps reprints of these two articles (with Cutwel's permission) in MEW would be a useful service.
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