If that is hardox, it’s the wrong steel for the application and no wonder it has so many cracks. A hardness tester would have been great for this video. A structural plate like that should not be over 350 BHN. Such as an alloy 4140 or T1 plate. I see so many amateurs using hardox 450 on UA-cam for structural applications. They have no idea what they are doing.
Well, lots of my competitors use carbon steel for these saw blades. They wear out very fast. The ones using 4140 or T1 do not last as long as my product. This blade and my blades are all hardox. This is not structural, there are no loads on it. This is a cutting blade, it only sees impact and abrasion. Abrasion is the #1 concern. All these blades crack irrespective of the material they are made from. It comes from attempting to cut arcs and curves. Hardox has noticeably longer life than t1 or 4140. Been doing this for years and have used lots of types of steel. Don't really consider myself an amateur.
They do not crack if you are cutting straight. The recommendation is an arc with a radius of 35 feet or greater. Everyone tries to cut tighter than that. More flexible steels have less abrasion resistance and longevity is the name of the game in microtrenching blades. @@RandomsFandom
Brass can be elastic but over a much much smaller range of stresses than steel. The stress strain curve of brass will show you why steel, especially soft steel, wins hands down.
@@chuckmccown8893 is there any chance of changing the geometry of the cutters to facilitate side loads better. I was thinking you could make open cuts where the cracks happen. Like with other types of saws. Lean into what nature is telling you. If you cut the blade at the crack, the harmonic vibration may have a safer way to dissipate
@@chuckmccown8893 have you considered making a titanium blade. Super flexible, and abrasion resistant. It's more plastic, and supposedly cheaper than stainless. I've seen guys put a thin piece in a vice and smack it with a 40lb sledge. It just sprung back.
If that is hardox, it’s the wrong steel for the application and no wonder it has so many cracks. A hardness tester would have been great for this video. A structural plate like that should not be over 350 BHN. Such as an alloy 4140 or T1 plate. I see so many amateurs using hardox 450 on UA-cam for structural applications. They have no idea what they are doing.
You're totally right. The metal should be made with something more flexible
Well, lots of my competitors use carbon steel for these saw blades. They wear out very fast. The ones using 4140 or T1 do not last as long as my product. This blade and my blades are all hardox. This is not structural, there are no loads on it. This is a cutting blade, it only sees impact and abrasion. Abrasion is the #1 concern. All these blades crack irrespective of the material they are made from. It comes from attempting to cut arcs and curves. Hardox has noticeably longer life than t1 or 4140. Been doing this for years and have used lots of types of steel. Don't really consider myself an amateur.
They do not crack if you are cutting straight. The recommendation is an arc with a radius of 35 feet or greater. Everyone tries to cut tighter than that. More flexible steels have less abrasion resistance and longevity is the name of the game in microtrenching blades. @@RandomsFandom
Move the holes away from the spots where it cracks.
This is a competitors blade. So don't really want to help them out with design issues....
@@chuckmccown8893 oh yeah, forgot that part. I do like to solve problems.
I'd cut out and braze the cracks for a more flexible point.
Brass can be elastic but over a much much smaller range of stresses than steel. The stress strain curve of brass will show you why steel, especially soft steel, wins hands down.
@@chuckmccown8893 is there any chance of changing the geometry of the cutters to facilitate side loads better. I was thinking you could make open cuts where the cracks happen. Like with other types of saws. Lean into what nature is telling you. If you cut the blade at the crack, the harmonic vibration may have a safer way to dissipate
My blades have these features. The blade in the video is a competitors product they brought to me to repair. @@RandomsFandom
@@chuckmccown8893 have you considered making a titanium blade. Super flexible, and abrasion resistant. It's more plastic, and supposedly cheaper than stainless. I've seen guys put a thin piece in a vice and smack it with a 40lb sledge. It just sprung back.
@@chuckmccown8893 if you want to turn tighter corners, make a ring saw version. You could make different size saw rings that fit in the jaws.
Algorithm brought me here, i dont know why.
What is this? There is actually a competition using this Blade?
No, a competitor to my blades brought me this blade to repair.