Subject line says it all.
This is for use on my 10x22 size Asian lathe with an AXA size QCTP. Mostly turn steel (1018, 1144, 12L14, 4140 - in other words CRS, leaded free turning steel, and Chromoly), some brass, and occasionally 7075/2024 and 6061 aluminum in that order.
I currently am using an Asian import 3/32 wide by 1/2 HSS maybe M2 of some questionable quality; it was inexpensive. I can sharpen it without any issue and it does reasonably good work. It is not a "P" type (ie T cross section) but rather has a double taper.
Now, I am not one to have much if any issue with parting but since I tried working some titanium a couple of weeks ago this parting blade just hasn't been the same despite repeated re-sharpening.
So, I am thinking it is time to replace the blade with something of better quality. Easy enough done but I am fussing over the blade width for reason. I am considering a "P" type (T cross section) of 1/16", 5/64", or 3/32" width.
I have been using a 3/32" wide blade for a long time with few issues and I don't have the wisdom of failure in this area to help guide me to make a choice.
Some research gives the recommendation of using a thinner blade (i.e. 1/16") but why mess around with success?
So, what say ye learned souls, what size (thickness) - go for the thinner (and why), stay with the current size, or split it down the middle 'tween the two (and why)?
And before you recommend an insert cut-off / parting tool, I have been considering that too.
cheers, Graham in Ottawa Canada