Twin/triple rough boring heads pull much more torque than an insert drill. Especially in a gummy long chipping material like condition A 17-4 when you have to really push the feedrate to break a chip.
They're fantastic when they fit nicely in the torque curve of the spindle, when they don't...
I'm not familiar with that specific machine, but I suspect based on the recent faulty display thread that the only way you'll get a control for that machine is to buy another one.
You could retrofit it with a Deva kit, but I doubt that it would be worth the time/money investment for that...
That is interesting, even though I had to google the units!
So it seems that this physical location is located directly between two polarised anomalies. However these units are extremely small right? Is that really a likely cause?
These are well cared for hand tools, or even tools that are...
Ideally, I'd hit that hole with a 60mm insert drill. Your 30HP may or may not be able to drive a 60mm drill depending on your torque curve, but I'd expect it to struggle. A condition is going to cause headaches no matter what, prepare for chip evac problems and bird nesting if your mill isn't...
Here's one for the physicists (geologists?) in our midst...
About 18 months ago I, in a round about manner, ended up taking over my and setting up in my retired father's workshop after ~20 years in a different part of the country. I learned the trade here with dad in the early 2k's before being...
Same here, large diameter boring heads, and a few smaller tools but not spinning too quick because of the materials being cut...
All the same I've never had one of these move in cut, they take a pretty solid grip because of effectively being clamped into a vee.
There is probably no published...
Honestly no, however the machinists I've met and worked with in my career have all set a pretty low bar IMHO, and also I am not without my crutches - I'd be pretty much dead in the water nowadays without my cad/cam software for example as I haven't hand coded a part in basically two decades.
I...
As is your right - but if you quote someone on a forum the expectation of a response is implied.
It's childish behaviour to solicit a response and then proclaim you don't care.
Now, since you clearly have absolutely no useful wisdom to impart on this subject, why don't you follow your own advice?
Since Sandvik's patents expired a few years ago lots of others have jumped on the damped bars, basically copying Sandvik, but rarely matching them in performance IME.
Stumbled across these this morning that are a little different: https://maqab.com
Seems to be an evolution of the original...
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