Can HSS endmill mill down Chinesium tool steel?

[chips&more]

So what about this one? The shank is 10mm or a tad bigger than 3/8".

https://www.ebay.com/itm/MGEHR1010-...139862?hash=item25db022156:g:F4QAAOSw7PJZZdRl

 

[BGHansen]

I milled a couple of BXA QC tool holders wider after mistakenly ordering a couple of 3/4" shanked tools. Used a carbide end mill and got them widened, but it was some tough cutting.

Chips&more idea is the route I'd go. Instead of trashing an end mill, just buy a tool holder that fits your AXA tool holder. They are under $20. The end mill I trashed was a 1/2" carbide Niagra that goes for about $100.

Bruce

 

[Titanium Knurler]

Stioc, I recently ran into a similar problem. I purchased a Dorian knurler that only comes with a one inch square shank. Even though the Dorian BXA toolholders will accommodate a one inch shank the center of the knurling tool was too high for my PM 1236-T lathe so I took it to a local machine shop and had them grind down the lower edge a bit. TK

 

[stioc]

So what about this one? The shank is 10mm or a tad bigger than 3/8".

https://www.ebay.com/itm/MGEHR1010-...139862?hash=item25db022156:g:F4QAAOSw7PJZZdRl

I milled a couple of BXA QC tool holders wider after mistakenly ordering a couple of 3/4" shanked tools. Used a carbide end mill and got them widened, but it was some tough cutting.

Chips&more idea is the route I'd go. Instead of trashing an end mill, just buy a tool holder that fits your AXA tool holder. They are under $20. The end mill I trashed was a 1/2" carbide Niagra that goes for about $100.

Bruce

Great idea but I already started milling it down before getting an emergency call from work and that ended the shop time for tonight. I started with my 4 flute cobalt roughing endmill and it jarred the mill pretty good so I lessened the DOC to .025" and then it seemed like it was mostly just rubbing over it rather than cutting through it. Next I got out the flycutter with a left hand indexable lathe bit and that started to actually cut through it but only about .020" at 1000 RPM (I was too lazy to change the belt config) and about 6IPM (since mine's a CNC I don't have manual hand wheels). I think I made two or three passes so I should be close to the height I need.

Stioc, I recently ran into a similar problem. I purchased a Dorian knurler that only comes with a one inch square shank. Even though the Dorian BXA toolholders will accommodate a one inch shank the center of the knurling tool was too high for my PM 1236-T lathe so I took it to a local machine shop and had them grind down the lower edge a bit. TK
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Wait but we're the machine shop, are we not? Good call and that's a nice knurler! I'd be curious to know how you like your 12x36T ? I'm pretty sure that's my next lathe when I have the room and some money put aside for it. Either that or the G4003G.

 

[Titanium Knurler]

Stioc, you are right, I guess we are supposed to be the machine shop but those damn tool holders are really tough! I don’t own a surface grinder so I tried an end mill and made no progress, then I ground it down using a hand held grinder, it wasn’t pretty, so I dropped it off at a friend that has a machine shop with a grinder and he finished it off for me. I had him do a couple. The other is an inexpensive Chinese tool holder with a groove on the bottom that is intended for boring bars. I use that one to hold my dial indicator.

I like the 1236-T a lot, I am sure you will too! I would send you a link to a thread I have going on it here on H-M but not sure how to do it. I noticed some people put something like,”look here”and it links you to something but I haven’t figured that feature out yet.

Hope emergency call went OK

TK

 

[darkzero]

I would send you a link to a thread I have going on it here on H-M but not sure how to do it. I noticed some people put something like,”look here”and it links you to something but I haven’t figured that feature out yet.

Some of the BB Code can be found on the Help page here.

4th section down, first example (URL=Link - Linking Advanced)

Or you can use the linking feature in the text editor.

 

[stioc]

Thanks TK! I think I found your thread:

Setting-up the PM 1236-T Lathe

I have now had my PM 1236-T lathe for about a year now. I thought I would share my experience with setting-up and using the machine for anyone that is interested. This is not meant to be a review, but I think at the end you will have a pretty good feel for this lathe. I will give you the...

www.hobby-machinist.com

I'll be reading it with interest this weekend.


Sent from my Nexus 6P using Tapatalk

 

[Titanium Knurler]

Stioc, this is what I did with my dial indicator. I used a cheap tool holder, had a corner ground down and just keep the indicator attached at center height:

 

[Titanium Knurler]

Sorry about that, I screwed up posting. I have been having trouble with our WiFi connection and it didn’t look the photos had loaded so I tried several times, then hit the post button by accident. Maybe I need another cup of coffee.

Anyway, this works for me, it’s quick and easy but, as you mentioned before, I did have to take it into a shop to have the edge ground. Is it still cheating if a friend does it for free?

One more shot(I hope):