Billtodd
Titanium
- Joined
- Feb 8, 2009
I've been asked, in the past, to cut some course pitch acme threads on my HLV-H but have had to refuse the work, because I did not believe it was possible to cut greater than 10tpi on the machine.
Today, I re-read Peter Haas's excellent metric threading thread and realised he had included all pitches upto 6mm.
So, can a HLV-H cut this pitch safely ? (I'm worrying about the gearbox and dog-clutch parts)
Would I be correct in thinking that if the Hardinge gearbox can withstand the forces produces by cutting 10TPI @ 1000rpm (which is a loose interpretation of the manual ) then cutting say 5-6mm @ <<500rpm should be OK?
Has anyone here cut course threads on an HLV?
Bill
Today, I re-read Peter Haas's excellent metric threading thread and realised he had included all pitches upto 6mm.
So, can a HLV-H cut this pitch safely ? (I'm worrying about the gearbox and dog-clutch parts)
Would I be correct in thinking that if the Hardinge gearbox can withstand the forces produces by cutting 10TPI @ 1000rpm (which is a loose interpretation of the manual ) then cutting say 5-6mm @ <<500rpm should be OK?
Has anyone here cut course threads on an HLV?
Bill