hawkfan9
Hot Rolled
- Joined
- Feb 23, 2010
- Location
- Illinois, USA
I need to purchase a boring bar to bore 10" lengths of 5" schedule 80 pipe (welded seam) to 5.000" inside diameter.
My lathe is a Series 61 Monarch toolroom lathe, 10 hp motor....plenty of power.
The part(s) are for a mudjacking pump pumping tube. I'm currently making 8 of them, but this is an ongoing project every few years, so not heavy use. I'd like to buy a boring bar that can be used for other projects, but has a length of 14" so I can do the job without having to re-indicate the tube in a 4 jaw and turn it around. Lighter passes are fine, as I'm removing about .125", and not in a hurry. Tool stickout will be 10", and I'm looking at 1.25" bars. Toolpost is Aloris CA.
I've seen a few bars advertised with 5° negative rake and CNMG insert. Is this fine, or do I want something else for this?
The finish doesn't need to be polished, but the a rubber seal is compressed inside this to create a pressure seal for pumping mortar mix, and I want the finish to be decent, as to not chew up the compressed rubber seals.
Other question is, can I use a #2 toolholder, or do I need to purchase a CA-41?
Your help is appreciated.
My lathe is a Series 61 Monarch toolroom lathe, 10 hp motor....plenty of power.
The part(s) are for a mudjacking pump pumping tube. I'm currently making 8 of them, but this is an ongoing project every few years, so not heavy use. I'd like to buy a boring bar that can be used for other projects, but has a length of 14" so I can do the job without having to re-indicate the tube in a 4 jaw and turn it around. Lighter passes are fine, as I'm removing about .125", and not in a hurry. Tool stickout will be 10", and I'm looking at 1.25" bars. Toolpost is Aloris CA.
I've seen a few bars advertised with 5° negative rake and CNMG insert. Is this fine, or do I want something else for this?
The finish doesn't need to be polished, but the a rubber seal is compressed inside this to create a pressure seal for pumping mortar mix, and I want the finish to be decent, as to not chew up the compressed rubber seals.
Other question is, can I use a #2 toolholder, or do I need to purchase a CA-41?
Your help is appreciated.