Re: carbide saw sharpening/the biggest problem
I used to manage a tree care company and we were in continual
sharpening mode with chain saws, etc.
The biggest problem was the sharpening machines.
If you sharpen with a machine the heat generated by the grinder
wheel will take the temper right out of the teeth.
The best way is to hand sharpen each tooth.
This is expensive and time consuming but it will pay off in the long
run because the teeth sharpened by hand will last twice as long as
if done by machine although those who do it by machine will argue
the opposite (They are not the ones who use the tools).
Also if the blades are cryo-treated, abrasion resistance will double
to quadruple.
Check this out!
http://lennon.pub.csufresno.edu/%7Erlk16/cryo.html
To research this process, google for "cryogenic treatment metals"
There are many good resources for data on this.
I found out about the process while working for a company that made
small cryonic refrigerators in the seventies used in infra-red heat
detectors and have used cryo treatment for tool bits of all sorts
since.
It's pretty amazing.
Jules
sharpening mode with chain saws, etc.
The biggest problem was the sharpening machines.
If you sharpen with a machine the heat generated by the grinder
wheel will take the temper right out of the teeth.
The best way is to hand sharpen each tooth.
This is expensive and time consuming but it will pay off in the long
run because the teeth sharpened by hand will last twice as long as
if done by machine although those who do it by machine will argue
the opposite (They are not the ones who use the tools).
Also if the blades are cryo-treated, abrasion resistance will double
to quadruple.
Check this out!
http://lennon.pub.csufresno.edu/%7Erlk16/cryo.html
To research this process, google for "cryogenic treatment metals"
There are many good resources for data on this.
I found out about the process while working for a company that made
small cryonic refrigerators in the seventies used in infra-red heat
detectors and have used cryo treatment for tool bits of all sorts
since.
It's pretty amazing.
Jules
This is not universal. I once had the good fortune to
send out a rip blade and have it come back ATB. ;o) I
wish I could use your sharpener, Andrew.
My only reason for attacking the tops is that they are
more accessible, and they are much less work to dress.
--- Andrew Pryer <dukepryer@...> wrote:
<HR>
<html><body>
<tt>
<BR>
----- Original Message ----- <BR>
From: thomas dalzell <BR>
To:bolger@yahoogroups.com<BR>
Sent: 20 April, 2002 4:26 AM<BR>
Subject: Re: [bolger] carbide saw
sharpening<BR>
<BR>
Regarding Sawlade sharpening<BR>
<BR>
<BR>
When we send our blades from our furniture work
shop to be sharpened only the inside face of the tooth
is touched.<BR>
It is only when th eblade is nearing the end of
its life that the top of the teeth are touched.<BR>
If you getting the blades that cheaply it may
not as you say pay to have them proffesionally
sharpenend.<BR>
<BR>
Andrew Pryer<BR>
Victoria <BR>
Australia<BR>
<BR>
______________________________________________________________________
Find, Connect Date!http://personals.yahoo.ca
send out a rip blade and have it come back ATB. ;o) I
wish I could use your sharpener, Andrew.
My only reason for attacking the tops is that they are
more accessible, and they are much less work to dress.
--- Andrew Pryer <dukepryer@...> wrote:
<HR>
<html><body>
<tt>
<BR>
----- Original Message ----- <BR>
From: thomas dalzell <BR>
To:bolger@yahoogroups.com<BR>
Sent: 20 April, 2002 4:26 AM<BR>
Subject: Re: [bolger] carbide saw
sharpening<BR>
<BR>
Regarding Sawlade sharpening<BR>
<BR>
<BR>
When we send our blades from our furniture work
shop to be sharpened only the inside face of the tooth
is touched.<BR>
It is only when th eblade is nearing the end of
its life that the top of the teeth are touched.<BR>
If you getting the blades that cheaply it may
not as you say pay to have them proffesionally
sharpenend.<BR>
<BR>
Andrew Pryer<BR>
Victoria <BR>
Australia<BR>
<BR>
______________________________________________________________________
Find, Connect Date!http://personals.yahoo.ca
----- Original Message -----
From: thomas dalzell
To:bolger@yahoogroups.com
Sent: 20 April, 2002 4:26 AM
Subject: Re: [bolger] carbide saw sharpening
Regarding Sawlade sharpening
When we send our blades from our furniture work shop to be sharpened only the inside face of the tooth is touched.
It is only when th eblade is nearing the end of its life that the top of the teeth are touched.
If you getting the blades that cheaply it may not as you say pay to have them proffesionally sharpenend.
Andrew Pryer
Victoria
Australia
______________________________________________________________________
Find, Connect Date!http://personals.yahoo.ca
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Keep in mind that carbide dust is toxic.
Check to be sure that the problem isn't just
accumulated pitch.
By hand I would probably just take a few strokes
accross the top bevel with a diamond file.
With a power deal, you need to find a way to index the
blade, and bring the cutter down to remove the same
amount on each tooth. You could just wing it by hand,
sor of like polishing it, confident that while you
would probably wreak it over several sharpenings, you
might sharpen it enough to get another go out of it.
the 7.25 blades are really disposable. Does anyone
know whether they are made of some stuff that won't
really accomodate sharpening?
--- Richard Spelling <richard@...>
wrote:
<HR>
<html><body>
<tt>
Anyone have any tips on sharping carbide saw
blades?<BR>
<BR>
I know I can have this done for less than $10 a blade.
However, if I catch<BR>
them on sale at HF, I can buy them new for that.<BR>
<BR>
I have a couple of dozen I've been collecting over the
years, all needing<BR>
sharpening. I picked up a diamond bit for the dremel
and am all set for a<BR>
rainy day. Now, I just have to
______________________________________________________________________
Find, Connect Date!http://personals.yahoo.ca
Check to be sure that the problem isn't just
accumulated pitch.
By hand I would probably just take a few strokes
accross the top bevel with a diamond file.
With a power deal, you need to find a way to index the
blade, and bring the cutter down to remove the same
amount on each tooth. You could just wing it by hand,
sor of like polishing it, confident that while you
would probably wreak it over several sharpenings, you
might sharpen it enough to get another go out of it.
the 7.25 blades are really disposable. Does anyone
know whether they are made of some stuff that won't
really accomodate sharpening?
--- Richard Spelling <richard@...>
wrote:
<HR>
<html><body>
<tt>
Anyone have any tips on sharping carbide saw
blades?<BR>
<BR>
I know I can have this done for less than $10 a blade.
However, if I catch<BR>
them on sale at HF, I can buy them new for that.<BR>
<BR>
I have a couple of dozen I've been collecting over the
years, all needing<BR>
sharpening. I picked up a diamond bit for the dremel
and am all set for a<BR>
rainy day. Now, I just have to
______________________________________________________________________
Find, Connect Date!http://personals.yahoo.ca
Anyone have any tips on sharping carbide saw blades?
I know I can have this done for less than $10 a blade. However, if I catch
them on sale at HF, I can buy them new for that.
I have a couple of dozen I've been collecting over the years, all needing
sharpening. I picked up a diamond bit for the dremel and am all set for a
rainy day. Now, I just have to figure out how to do it!
Did the requisit google search, lot of places offering the service, but no
"how-to" page.
Anybody want to share? Have any good links?
I know I can have this done for less than $10 a blade. However, if I catch
them on sale at HF, I can buy them new for that.
I have a couple of dozen I've been collecting over the years, all needing
sharpening. I picked up a diamond bit for the dremel and am all set for a
rainy day. Now, I just have to figure out how to do it!
Did the requisit google search, lot of places offering the service, but no
"how-to" page.
Anybody want to share? Have any good links?