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Forum topic by DWestwind posted 03-10-2009 10:02 PM 1398 views 0 times favorited 9 replies Add to Favorites Watch
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DWestwind

7 posts in 2829 days


03-10-2009 10:02 PM

Being new at wood turning I am seeking some advice. My chisels and scrapers have become dull, no big suprise. What did suprise me was they started getting just a bit blue on the ends and have started to chip away, looks to me like they’re loosing temper. Is this normal? Are they just cheap tools? Am I doing something wrong? Please help the confused.

P.S I use a new jet midi lathe, and have been turning small oak bowls to start out with.

Westwind

-- Westwind


9 replies so far

View jockmike2's profile

jockmike2

10635 posts in 3711 days


#1 posted 03-10-2009 10:25 PM

Steel bluing is a sure sign of loss of temper. Then again it could be bad steel. Where did you get your chisels. Are they High Speed Steel, HSS? When you sharpen them do you quench them in water so they don’t turn blue. In other words you have to keep the steel fairly cool as you sharpen. You might have picked up some cheap chisels. Or you just are making them too hot as you sharpen them. Do you have a flat sander? If you do you can turn it upside down and clamp the handle in a vise. That makes an excellent way to sharpen your chisels or do it by hand on a whet stone.

-- (You just have to please the man in the Mirror) Mike from Michigan -

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DWestwind

7 posts in 2829 days


#2 posted 03-10-2009 10:37 PM

The chisels are from a pack that I got with the lathe, I don’t remember if they said hss on them. They were in a pack so I’d imagine they were pretty cheap or they wouldn’t have thrown em in with the deal. I do quench, or did the one time i’ve sharpened them on my bench grinder. The grinder was at its lowest speed. The flat sander idea sounds good though i’ll try it.
Thanks for the help.

-- Westwind

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jockmike2

10635 posts in 3711 days


#3 posted 03-10-2009 10:53 PM

I would think that Jet would give you good merchandise. So I would take it easy on the grinder. Do you have a fairly smooth grinding wheel, if not I would suggest getting a white smooth wheel with dressing stone. Otherwise you are not going to get fine edges on your chisels. mike

-- (You just have to please the man in the Mirror) Mike from Michigan -

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cabinetmaster

10874 posts in 3023 days


#4 posted 03-10-2009 10:54 PM

HSS tools are good tools as long as you sharpen them right. I bought my first set from Penn State and they were like $60.00 or so. But they have lasted me well and I do a lot of turning. I use a slow speed water grinder that I bought from Sears. Now I am getting ready to use a Worksharp 3000. I used it this weekend and sharpened my wood chisels and boy are they sharp now. I need to go sharpen some turning tools tonight cause I have some 5 X 5 posts to turn at work tomorrow. Just don’t let them get too dull before you touch them up again.

-- Jerry--A man can never have enough tools or clamps

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SCOTSMAN

5839 posts in 3050 days


#5 posted 03-10-2009 11:36 PM

Don’t start of with dry wood in my opinion get some newly sawn wood til you get the hang of things .The reason I say this is that green wood straight of the tree or forest floor is lovely to learn on your tools may have just ben sharpenned badly what are the made off? hss is best don’t aNyone buy carbon steel and expect great constant results its too soft and does not stand up well to the heat generated during cutting.If you do cut well dried oak remember to keep your tools very sharp as oak is renowned for being quick to heat up the tools and the chips on your hands are hot too good luck email me if you want me to help you more with this .pity I wasn’t nearer some of you guys.best of luck regaRDS Alistair

-- excuse my typing as I have a form of parkinsons disease

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DWestwind

7 posts in 2829 days


#6 posted 03-10-2009 11:55 PM

You guys are great, many thanks.

-- Westwind

View jockmike2's profile

jockmike2

10635 posts in 3711 days


#7 posted 03-10-2009 11:58 PM

Alistair gave you the best advise, get some green wood to start with. A lot easier on you, the lathe, and the tool.

-- (You just have to please the man in the Mirror) Mike from Michigan -

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a1Jim

115202 posts in 3042 days


#8 posted 03-11-2009 01:45 AM

I’m with you guys green wood that’s tulip poplar right? just kidding.

Jim

-- http://artisticwoodstudio.com Custom furniture

View eddy's profile

eddy

936 posts in 2829 days


#9 posted 03-12-2009 02:10 AM

what are you using to sharpen the tools with ?
my daughter’s tools are from hf $30.00 for the set of 8
i sharpen them on a home made oneway jig.
i can e-mail a pic if you like

-- self proclaimed copycat

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