viper
Titanium
- Joined
- May 18, 2007
- Location
- nowhereville
We sponsor one of our local universities for race part design, mfg, etc. We decided to take a part in and supervise them running it in their place. We programmed very conservative understanding the TMs have about 5hp or so. I cannot remember the exact cutter engagement but I was really shocked at how much the machines vibrated. We ran a 3/4 2fl dry in Al. Approx engagements were maybe 3/8 axis, 30% radial.
The spindle seemed to be handling the load fine but the vibes were surprising. I really thought the TMs were pretty close to a naked VF but I was wrong. We had a Tree knee mill that was quieter than these.
Now, I realize running more flutes would help as well as possibly using a better cutter all around but this was an educational shop so everything gets broke..... I watched another guy trying to drill press a 1" hole at 1500 rpm in steel with a really long bit.... I had to reach for my ear plugs and when I commented that they needed to slow WAY down, all I got was "we are in a hurry". I think they went through 3 bits for one hole....
The spindle seemed to be handling the load fine but the vibes were surprising. I really thought the TMs were pretty close to a naked VF but I was wrong. We had a Tree knee mill that was quieter than these.
Now, I realize running more flutes would help as well as possibly using a better cutter all around but this was an educational shop so everything gets broke..... I watched another guy trying to drill press a 1" hole at 1500 rpm in steel with a really long bit.... I had to reach for my ear plugs and when I commented that they needed to slow WAY down, all I got was "we are in a hurry". I think they went through 3 bits for one hole....