Hello all,
I am currently working with some 6061 2x2 square stock in a Haas DS30. Right now I am having a problem with my Thread mill (morse 1/4-18 NPT) (https://www.morsecuttingtools.com/catalogue/product/321272) pulling out of its holder. The tool sits in an ER25 collet which is fine, but that is part of an extension that goes into an epinger radial live tooling block and is held by a 3/4" ER32 collet. That extension keeps slipping out of the 3/4" collet.
I have tried retightening it and switching to another collet, both of which didn't help. Right now I'm in the process of adjusting speeds and feeds as I'm worried it was pulling because of too much load on the tool. It was initially programmed at 1000-1200 rpm and 20 IPM (96 SFM and 0.005 IPT) but the Mfg states in aluminum 750-900 SFM is ideal with an IPT of 0.003-0.0045. I tried turning it up (380 sfm and .0037 IPT) but due to my bar sticking out 3.25" I was getting a lot of vibration and noise. I also maxed out my live tool rpm at 380 SFM. I'm at a bit of a loss here as this part has had multiple runs of 200 parts done by others and this is the first time I'm dealing with this issue.
Does anyone have any ideas? I must be overlooking or have done something improperly in the setup as I am quite new and lack experience. I can update with any info or clarify anything I have said.
I don't believe the nut itself is loosening as it's still quite hard to loosen. The tool comes out about .008" after 6 parts. The Shank of the holder is quite smooth too, I'm going to double check its Dia. tomorrow.
Thanks for reading my wall of text.
I am currently working with some 6061 2x2 square stock in a Haas DS30. Right now I am having a problem with my Thread mill (morse 1/4-18 NPT) (https://www.morsecuttingtools.com/catalogue/product/321272) pulling out of its holder. The tool sits in an ER25 collet which is fine, but that is part of an extension that goes into an epinger radial live tooling block and is held by a 3/4" ER32 collet. That extension keeps slipping out of the 3/4" collet.
I have tried retightening it and switching to another collet, both of which didn't help. Right now I'm in the process of adjusting speeds and feeds as I'm worried it was pulling because of too much load on the tool. It was initially programmed at 1000-1200 rpm and 20 IPM (96 SFM and 0.005 IPT) but the Mfg states in aluminum 750-900 SFM is ideal with an IPT of 0.003-0.0045. I tried turning it up (380 sfm and .0037 IPT) but due to my bar sticking out 3.25" I was getting a lot of vibration and noise. I also maxed out my live tool rpm at 380 SFM. I'm at a bit of a loss here as this part has had multiple runs of 200 parts done by others and this is the first time I'm dealing with this issue.
Does anyone have any ideas? I must be overlooking or have done something improperly in the setup as I am quite new and lack experience. I can update with any info or clarify anything I have said.
I don't believe the nut itself is loosening as it's still quite hard to loosen. The tool comes out about .008" after 6 parts. The Shank of the holder is quite smooth too, I'm going to double check its Dia. tomorrow.
Thanks for reading my wall of text.