Gallery, Projects and General > How do I??

Insert Madness.....Help Please!

<< < (5/7) > >>

vtsteam:
Thanks Pekka, will do and I'll let you all know how they work out for the purpose.  :beer:

mc:
Stupid question, but you have checked for a part number on the holder shanks?
Usually insert tools have their holder number etched/printed on the side of the shank.

If your holders use TCMT inserts, then the holder model number should start with ST.


The issue with insert tooling, is although there is quite a bit standard and common range of holders/inserts, there are also a lot of manufacturer specific holders and inserts, aimed at specialist applications.

Personally I'd advise if buying any insert tooling, make sure it's to one of the generic standards.

Also, given your intended application, find some inserts designed for interrupted cuts. There is a very wide range of insert materials and geometries, so try and find something suitable for your trying to do, otherwise insert life will likely be very short.

vtsteam:
Hi mc, no nothing was printed on the side of the tools other than AR or AL, etc

I do know the original insert part number now (TCMT090204) C6 and also know that ideally I'd want a .8mm radius(TCMT090208) and C2 carbide for my application -- but hard to find that combo. I have been successful now with original replacement inserts with careful and relatively fine passes on interrupted cuts with my sand castings.

But looking forward to trying out the other tooling ordered as mentioned earlier in the thread. I actually think that the cheap-as-chips brazed C2 sticks I mentioned a couple posts ago might be the ticket for roughing these castings. We'll see, and report back.  :dremel:

Iron, casting below machined from rough with replacement original "wrong" C6  .4mm. Didn't break a corner on it.......so far. But it was slow going.

mc:
Carbide grades for inserts do vary between manufacturers, as there is no standard.
C2/C6 is pretty meaningless in the grand scheme of things.

Now you know the insert type and size, you really need to do a bit research into what different suppliers offer. Most will give recommendations for different materials, and different cuts.

vtsteam:
Well I don't "really need to". One "might want to."
But actually nope.

While it doesn't specify composition, the C system does specify intended function. Like the name High Speed Steel. Useful enough for my purposes without specialist consultation.

C grades classification
C-1 to C-4 are general grades for cast iron, non-ferrous and non-metallic materials
C-1       Roughing                     
C-2       General Purpose
C-3       Finishing
C-4       Precision
Steel and steel alloys - these grades resist pitting and deformation
C-5       Roughing                     
C-6       General Purpose
C-7       Finishing
C-8       Precision
Wear Surface
C-9       No shock
C-10     Light shock
C-11     Heavy shock
Impact
C-12     Light
C-13     Medium
C-14     heavy
Miscellaneous
C-15     Light cut, hot flash weld removal
C-15A  Heavy cut, hot flash weld removal
C-16     Rock bits
C-17     Cold header dies
C-18     Wear at elevated temperatures and/or resistance to chemical reactions
C-19     Radioactive shielding, counter balances and kinetic applications

 

Navigation

[0] Message Index

[#] Next page

[*] Previous page