Subject: Re: Band Saw Blades

From: [email-masked]
Date: Sat, 27 Jan 96 12:33:08 PST

On Fri, 26 Jan 1996 17:05:40 -0500 (EST)  David C. Hufford wrote:
>At the Quad State conference last September, Peter Sevin demonstated a 
>method of brasing band saw blades.  He had a clamp jig to hold the ends 
>together and brased a butt joint.  He had been doing this for some time 
>and reported it worked great.  Perhaps someone who was at that 
>demonstration (and has a better memory than I) could further explain 
>Peter's technique.
>
>David C. Hufford
>

Brazing band saw blades is a VERY old techniques that you will probably 
see mentioned in just about any woodworking book.  I have a 1945 "Popular 
Mechanics" issue which oulines brazing the ends of a broken blade 
together with "brass spelter, borax and a parafin torch."  I just 
question how much use this technique would be with metal cutting blades.  
The kerf of the saw through the metal is much less forgiving than the 
kerf through wood.  Most commercial sources seem to butt/arc weld and 
then grind smooth on the sides.  The band saw source near me has a gizmo 
that cuts/welds/grinds the blade.  The operator just measures out the 
length of the finished blade and the machine does the rest.

-----------------------------------------------------
Name: Franklyn D. Garland        A Hobby Is Hard work
E-mail: [email-masked]          You wouldn't Do For
Date: 01/27/96                     A Living.
Time: 12:33:08

http://www.mcs.net/~frnklyn/homepage/
-----------------------------------------------------

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From: [email-masked]
Date: Sun, 28 Jan 96 09:42:46 EST

>demonstration (and has a better memory than I) could further explain 

Hmmm...  I have to say I am quite skeptical of the safety of this. 
If it was safe I suspect you'd see a lot more of it given that it
is a lot simpler to  equip yourself with brazing apparatus (any
generic torch will do) that with the specialized welding apparatus
used in butt welding bandsaw blades.

I have no doubt it can be done and that it  works but I myself
would not feel comfortable with this method.  Bending fatigue 
is going to be more of a problem than with a welded blade.
It would also seem that there's a greater margin for error 
in a welded joint than in a brazed one.  When brazing, the
quality of the joinery is far more critical than in welding
since there's no joining of the parent metals.

I'd be very interested to know just how well this method
works regarding joint integrity.

	-Andy V.

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From: Matt Balent/HCS/CSC <Matt_Balent/HCS/[email-masked]>
Date: 26 Jan 96 7:58:54 EDT

Enco Manufacturing Company (800) 873-3626

Matt.

============original message=================
Date: 01/26/96 07:00:04 AM
Subject: Band Saw Blades

Does anyone know of a source of metal-cutting band saw blade in bulk 
rolls?  I understand it's cheaper to purchase the blade in rolls and 
cut/brase blades to fit your saw.  Any info as to sources is 
appreciated.

David C. Hufford

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From: "David C. Hufford" <[email-masked]>
Date: Fri, 26 Jan 1996 17:05:40 -0500 (EST)

David C. Hufford

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From: [email-masked]
Date: 26 Jan 1996 22:10:48 EDT

Ellis Mfg. Co., Inc  at 107 W. Railroad St, Verona, WI 53593-0219 Phone
800.383.5547  has a wide variety of band saw blades in specific lengths
and tooth.  They also have bulk blades however, their  prices are
sufficiently reasonable that I buy the length for my saw.  They have
both carbon back and bi-metal.  I've found that since my shop is not a
high production shop that the straight carbon blades are a better value.
They also manufacture band saws.  I purchased one a few years back and
am convinced that this is one of the more valuabe tools in my smithy. 
They also have heavy duty drill presses (I'm saving up for one).  Ellis
is high quality and a fair price and they ship quickly.
Roger Carlsen
Ephraim Forge, Inc.
Frankfort, IL
[email-masked]

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From: Matt Balent/HCS/CSC <Matt_Balent/HCS/[email-masked]>
Date: 29 Jan 96 8:02:27 EDT

I recall that he first beveled the ends (like scarfing) with a
grinder, clamped the ends into his jig, and then brazed them.
I would think that perhaps some follow up grinding to smooth
out the joint would also be in order.

-Matt Balent
===========Original text====================
Date: 01/26/96 05:05:40 PM
Subject: Re: Band Saw Blades

David C. Hufford

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From: [email-masked]
Date: Tue, 30 Jan 1996 13:38:48 -0500

When I was in high school we had a machine that welded band saw blades. It
had a pair of clamps and you pused a lever and when you released it the blade
was done. Believe it used silver solder. Don't know what it was called but I
sure wish I had one. Quite often when a blade breaks it can be rewelded and
is still long enough to use.
--Jim McCarty

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From: "John W. Pollins III" <[email-masked]>
Date: 31 Jan 96 22:47:27 EST

Jim,
	Are you using lead solder or silver? -- or does it matter?
	I built the little jig after quad state ground a little taper on both
ends, overlapped about 1/8 inch --  but I thought I was supposed to be
acceteline braze it.
	I ground off the braze so the thing would slide easily between the guids.
	The first one broke immediately and the second after about an inch (of  a
1 x 3 302 stainless bar). So I abandoned the idea until this discussion brought
it up again.
	Should I have been soldering instead?

			John Pollins

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From: Mike Fifi <[email-masked]>
Date: Thu, 8 Feb 1996 19:31:53 -0800

There is an article on building:

"Brazing Fixture for bandsaw blades"

which shows the process and jig construction in 
my favorite source book....

the Popular Mechanics Do-it-Yourself Encyclopedia.

volume 1, AB-BA, year MCMLXVIII (1968?) 

page 162, heading 'bandsaws, blades'

hope this helps,

Mike Fifi.