Parallels for parting and grooving?
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Parallels for parting and grooving?
Can you use old parallels for parting and grooving? I have a few laying around and it seemed like a good idea. But fishing with dynamite seemed like a good idea to someone also.
Everyone want's a job until they get one.
Re: Parallels for parting and grooving?
I don't think that would be a good idea. Even if they are hardened, they will generally not be nearly hard enough to use for parting, and they won't have the alloy characteristics that keep the edge from softening in the cut and eroding (or breaking) away.
Russ
Master Floor Sweeper
Master Floor Sweeper
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Re: Parallels for parting and grooving?
Thanks that makes sense.
Everyone want's a job until they get one.
Re: Parallels for parting and grooving?
Mac. They are also dead straight on the sides (or should be).
Re: Parallels for parting and grooving?
I seen a parallel used for that in school and they just burned off the end. The guy that did it thought it was HSS with the printing on the side like HSS bits.
Richard W
Richard W
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Re: Parallels for parting and grooving?
Richard thats what I have. I knew I would have do some work with the grinder. I sharpened one today and used it and it worked fine on cols rolled.
Everyone want's a job until they get one.
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Re: Parallels for parting and grooving?
No side clearances, no go ... bad idea.
Not HHS either possibly.
Not HHS either possibly.
There are no problems, only solutions.
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
Re: Parallels for parting and grooving?
I don't believe parallels are made from HSS. Alloy tool steel, yes.
Mr.Ron from South Mississippi
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Re: Parallels for parting and grooving?
A parting tool tool, the thinner the better, as long as it will do the job.
I have some HHS of rectangular shape ( 1/4" X 1/2", or 1/8" X 1/4" and so on) This could be used as parting tools with the correct side and front clearances.
The problem here is that parting with a 1/8" or bigger bit cannot be done on a small lathe without causing lots of chatter.
I use these tool for parting, but ground with special shapes and for special purposes.
I have some HHS of rectangular shape ( 1/4" X 1/2", or 1/8" X 1/4" and so on) This could be used as parting tools with the correct side and front clearances.
The problem here is that parting with a 1/8" or bigger bit cannot be done on a small lathe without causing lots of chatter.
I use these tool for parting, but ground with special shapes and for special purposes.
There are no problems, only solutions.
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa