wm blade broke in weld

[big_sid]

had a wood-mizer blade break in the weld,the blade had been sharpened 2 or 3 times.was sawing kiln dried pine used for a log house two side square, two sides tonuge and grove,taking a board off each square side, then the tonge and grove side, leaving a 31/2"x 71/2" cant, very interesting job, anyway has this happened to anyone?

[pineywoods]

never had one break in the weld. Had a few break after 2 or 3 sharpenings, but most of the time they had been into some foreign metal.

[Tom]

I've had them break in the weld  when there was a bad weld.  That usually shows up within the first few minutes of use.  If you got several sharpenings before the break, then you probably got your money's  worth.    I try not to nickel and dime the blade manufacturer over broken blades even though most will make it right to suit me.   You might tell them it happened just so that they can have it on record.  They might even discount another blade on your next order.  Have the blade's serial number ready so that they can research it if they want. 

If you are using ReSharp, they might even reweld it for you if you send it back.

[Brucer]

I've had a couple break in the weld. I'm surprised it isn't more, since that's a potential weak spot.

Most blade failures are fatigue failures. That means there'll be a certain amount of random variation in blade life: most blades will be close to the average, but a few will be extreme (either way). I had one blade from my first box break (not in the weld) after only one sharpening. And just last month, the last surviving blade from that same box broke. After 13 sharpenings it was 1/8" narrower than when it was new ;D.

I don't get worked up over premature failures -- the average life is about what I expected. I keep track of blade life though, and if a whole box of blades fails prematurely, I'll contact the supplier.

[flip]

I've had one blade break in the weld, it was a Munks.  All of the other blades I've "tested" to failure have been stress cracked in the gullets. ;D

[big_sid]

I really wasn't looking for a new blade, just to see if anyone had this happen, and to let it be known that it did, for quality control purposes  :D :D  I do use re-sharp.

[saw4you]

Two blades this week have broke on me. Those blades had been sharpened 3 times also.  But it did not break in the weld

[big_sid]

Tom, I forgot to ad it's past a reweld  if ya know what I mean, kinda bent after I got it out :D :D I have had serval to brake, first one in the weld.

[Tom]

I know what those kinds of blades look like. :D   Mine usually do that rather than just break.  They get wadded up in the blade shroud.

[sgtmaconga]

count me in for one break at the weld

[Cedarman]

With good quality control by the blade welding company, they should not break at the weld.
In the good old days we have had a bunch break at the weld.  They usually ran in batches.  WM blades very seldom break at the weld, but did more in the past than they do now.  Maybe one in several hundred.
We used other brands on our scragg and there are times when we had quite a few break at the weld.  One time they forgot to grind the weld.  We put it on the scragg and it busted the blade guides.  They bought us a set of guides.  They were real nice about it, no problem.  But it was expensive for them as Baker guides aren't that cheap. 
As the companies learn more about making blades, braking at the weld should be rare.

[LT40HDD51]

Blades sure have come a long way, I remember Dad in the late 80s and early 90s trying to saw knotty spruce with .035 thou blades and a manual sharpener and the old-style tooth setting pliers  . One time he loaded a couple into the WM truck on its way back to the factory, asking for a blade that will saw them  :D.