the carriage and slow down feed rates as the tool finishes the parting operation. This is especially true of difficult materials like stainless. If the element being parted off is going back into the chuck, flipped around for a facing operation, I often just retract the parting tool, stop the lathe and wiggle the off -cut until it snaps loose.
Parting tool for Atlas Craftsman lathe | The Hobby-Machinist
2018年10月17日 · It cut really nice, but it "dished out" the cut. My colleague at the adult school machine shop told me the small parting tool (it's the thin one), coupled with the thick holder and the set screws (#8-32) causing the blade to be slightly crooked, didn't allow it to flex much (I saw it flex very little) so the tool "wandered" a bit.
Always breaking parting tools - The Hobby-Machinist
2022年7月7日 · Too much tool stick out makes it more "flexible" and can result in poor cutting, jamming, chattering or breakage. When I part, I make sure the parting tool is just long enough to part the work piece and no longer. Keeps it as rigid as possible.
Parting, HSS vs Carbide insert - The Hobby-Machinist
2021年12月24日 · I have parted 4140 on a little Sherline lathe with a rear mounted P1-N parting tool and had zero issues doing it. You also have to remember that a parting tool is a form tool. The bigger it is and the less sharp it is, which is what carbide is, the higher the cutting forces are. When parting harder material, this matters a great deal.
Gooseneck or spring-tool holder - The Hobby-Machinist
2012年12月29日 · As the lathe starts to stall, you momentarily increase the surface feet/rev. which increases the cutting force forcing the stall. The spring parting tool will provide negative feedback to decrease the cutting force, preventing stalling of the lathe. It is interestng that the tool is no longer available.
pulls together and organizes many disparate information sources that every indexable tool user should be familiar with and will need to know about insert selection. 3. The third section includes more thorough detail on each of the indexable tool categories, including turning, facing, threading, parting, and boring.
How to Mount Parting Tool - The Hobby-Machinist
2018年4月7日 · Parting from the front on a Sherline lathe is problematic at best but I use a rear mounted parting tool post on my Sherline lathe and it will part almost anything from that position. It is mounted directly on the cross slide and I suspect this makes a difference but I can part most materials at 2-3 times normal turning speeds without issues.
Alignment of the parting tool is the first thing to check and correct. It must be exactly perpendicular to the centerline of the spindle rotation, and by "exactly" I mean the parting tool needs to be indicated in, not just eyeballed or registered against the chuck. And the cutting tip of …
What's the best parting tool? | The Hobby-Machinist
2012年6月17日 · Well, you also might try a different technique. I use a 1/16 X 1/2 in parting tool in a holder that holds the blade horizontal rather than angled. When I want to part something thick, I do it a little at a time. I extend the blade 1/2 in. Cut to depth. Retract the tool from the workpiece. Extend it another half inch or so from the holder. Cut ...
How Can I Reduce Parting Tool Chatter | The Hobby-Machinist
2021年9月21日 · Try HSS in a tool holder designed to hold the tool at a positive cutting angle. (top of tool pointing upwards a few degrees.) If you use a T shaped tool Make sure it stays vertical. Some people use a shim on the side to make sure the tool is straight up. Took me a while to write this so there is probably another answer by now.