Parting.

[eLuSiVeMiTe]

Is that swarf I see on your lathe there?? Must of been on collection day was it

Last time I cleaned it off I got a whole builders bucket full. Been 6 months since I got a chance to use it properly

 

[Woody.v8]

Once it starts to complain wind the tool in harder
You will be surprised how many times this works

This is me winding the tool in.

 

[hareng]

Thought I had it sussed....
View attachment 212626

Not had one go like that, put money on it swarf lodging down the sides of the insert should have heard it change note. Try aluminium 6082 it can be a bitch 2 secs warning tops with or without coolant.
Similar happened with me best Iscar DoGrip DGTR, it bound up.
Have a couple of that type of parting tools and not fond of them.

 

[roofman]

Tools that snap are a god send and look at it as a sacrificial helping hand at not damaging the more expensive parts of the machine

 

[eLuSiVeMiTe]

Tried a few different kinds.
This type worked best for me

 

[hareng]

Tried a few different kinds.
This type worked best for me

Somewhat similar to the MGMT inserts in the Iscar DGTR, used to turn with them as well. Didnt like the cost of a replacement even for business so imported a chinese variant it isnt any where near as good but £112 cheaper.

 

[m_c]

Tried a few different kinds.
This type worked best for me

I now use them quite a lot.
Officially they're classed as a MDT (Multi Direction Turning) tool. I've had one in the CNC lathe since I got it, and it's brilliant for parting and chamfering. Part of part way, chamfer, then finish parting off. They can also be used for light profiling.
I've also put one in a QC toolholder for my manual lathe, and I find it parts of better than the previous carbide parting tool I was using.

Only downside is they're pretty limited in how deep they can go.

 

[Hood]

Somewhat similar to the MGMT inserts in the Iscar DGTR, used to turn with them as well. Didnt like the cost of a replacement even for business so imported a chinese variant it isnt any where near as good but £112 cheaper.

Got a heap of Seco MDT inserts off eBay a few years back and invested in a tool, total for about 50 inserts and tool was under £100.
Don't use it a huge amount but the 3mm dia inserts come in handy for a few jobs I do.

 

[m_c]

This thread just reminded me I need to order some turning inserts, but for a UK based source of reasonable inserts/holders, check out www.shop-apt.co.uk
The style of parting holders I have are mix of MGMN holders (can be found under the grooving menu)

I suspect most of their stuff is sourced from China, however I've never had any problem with the quality. Any issues have been self inflicted.

 

[Hood]

This thread just reminded me I need to order some turning inserts, but for a UK based source of reasonable inserts/holders, check out www.shop-apt.co.uk
The style of parting holders I have are mix of MGMN holders (can be found under the grooving menu)

I suspect most of their stuff is sourced from China, however I've never had any problem with the quality. Any issues have been self inflicted.

I have used them a few times with mixed results. Their Canela stuff is not Chinese or at least Canela used to be an Italian manufacturer but the rest is Chinese. I think them and Gloster Tooling are one in the same or possibly just partners or work together.

One tool that drove me up the wall was a SVJBL, took me a good while altering tool offsets until I discovered the reason I couldn't get the thing cutting the right dia, bleeding tapped hole in the tool was virtually non existent.

 

[doubleboost]

 

[Kram]

@doubleboost Did you cut dovetails in the bigger SMB2532? I might get one to do that.

 

[doubleboost]

@doubleboost Did you cut dovetails in the bigger SMB2532? I might get one to do that.

yes i did one for a friend much more rigid
still have mine to do

 

[ukracer]

If it had been a cheap Chinese blade then I would have said par for the course. With it being a Korloy one however I wouldn't be happy as they are not just cheap rubbish. Unless you did something seriously daft I would be getting in touch with Cutwel to see what they say.

BTW next time buy the Iscar Tang Grips, on special every second month at J&L.

Or buy the bang good specials as used by @doubleboost .

Just too late again..lol

 

[ukracer]

Best thing about rear mount is it's always there ready to cut only time it's removed is to fit the boring bar which is a bit big for the front toolpost

Can't fit a rear tool post on my Colchester.

 

[Hood]

Or buy the bang good specials as used by @doubleboost .

...

If I thought they were as good as the Iscar then I would but ....

 

[ukracer]

If I thought they were as good as the Iscar then I would but ....

I am guessing you are going to be correct...but I will say I have heard far less in the way of profanities on the videos than before he got the banggood parting tool

 

[Hood]

I am guessing you are going to be correct...but I will say I have heard far less in the way of profanities on the videos than before he got the banggood parting tool

The biggest drawback I see is that it is the old GTN insert design. There is no positive stop so the insert can be pushed to different depths in the blade depending on pressure applied. For a manual lathe it is probably not too much of a concern but for a CNC you need something that is repeatable.

 

[Brad93]

Wait till Cutwel have another deal on their Korloy parting tools.

maybe not as good as kennametal or iscar but a third of the price.

 

[Brad93]

It is in this months offers, you may even be able to get free postage with the code ADVFREE

I really rate them, I have used just about every brand/style of parting blades/inserts out there and now these are the only ones I will buy.

View attachment 212641

What’s the best width and depth to go for? 3mm or 2mm? 26mm or 32mm?