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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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more on mini-excavator bucket tooth
My father-in-law asked me to make up a shank to replace the one on his
Kubota tractor's backhoe attachment bucket. The tooth had come off years ago and the stub had worn down. The shank which we cut off was high-carbon steel, about 3/4 x 3/4". The tooth opening was 3/4 x 1/2" so we made up a shank that size from mild steel. Bent like cooked spaghetti. I'm assuming to get steel that resists bending much more, I'll have to use some kind of tool steel. Any suggestions? In my shop I have A-2, A-6, O-1, O-2, and S-7. Grant |
#2
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more on mini-excavator bucket tooth
On Thu, 09 Aug 2007 17:20:19 -0700, Grant Erwin
wrote: My father-in-law asked me to make up a shank to replace the one on his Kubota tractor's backhoe attachment bucket. The tooth had come off years ago and the stub had worn down. The shank which we cut off was high-carbon steel, about 3/4 x 3/4". The tooth opening was 3/4 x 1/2" so we made up a shank that size from mild steel. Bent like cooked spaghetti. I'm assuming to get steel that resists bending much more, I'll have to use some kind of tool steel. Any suggestions? In my shop I have A-2, A-6, O-1, O-2, and S-7. Get a shank from the dealer. The shanks and teeth are one of the most affordable parts available for backhoes (when compared to pins and bushings). |
#3
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more on mini-excavator bucket tooth
Grant Erwin wrote:
My father-in-law asked me to make up a shank to replace the one on his Kubota tractor's backhoe attachment bucket. The tooth had come off years ago and the stub had worn down. The shank which we cut off was high-carbon steel, about 3/4 x 3/4". The tooth opening was 3/4 x 1/2" so we made up a shank that size from mild steel. Bent like cooked spaghetti. I'm assuming to get steel that resists bending much more, I'll have to use some kind of tool steel. Any suggestions? In my shop I have A-2, A-6, O-1, O-2, and S-7. Grant Ayup. Buy a weld-on tooth base and save yerself the money time and greif of trying to reinvent the wheel. It'll fit the new tooth properly, too. Cheers Trevor Jones (sorry to poop the party) |
#4
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more on mini-excavator bucket tooth
"Grant Erwin" wrote in message ... My father-in-law asked me to make up a shank to replace the one on his Kubota tractor's backhoe attachment bucket. The tooth had come off years ago and the stub had worn down. The shank which we cut off was high-carbon steel, about 3/4 x 3/4". The tooth opening was 3/4 x 1/2" so we made up a shank that size from mild steel. Bent like cooked spaghetti. I'm assuming to get steel that resists bending much more, I'll have to use some kind of tool steel. Any suggestions? In my shop I have A-2, A-6, O-1, O-2, and S-7. Grant Grant, I am surprised that it bent. I wonder how much unsupported length was involved. I just made myself a 'toothbar' for my small Kubota loader bucket. Have done lots of digging with it since. I purchase nine teeth from Deere (my Kubota dealer was out) got some 1"x1" stock, cut the correct taper on said stock to fit the tooth, welded all nine assemblies to a 3"x1/2" bar, AND additionally welded 1"x1"x1" block supports running up to the tooth. I think it is these supports that keep things from bending. My dealer wanted to charge $398 for a tooth bar. I ended up with less than $79 out of pocket. Ivan Vegvary |
#5
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more on mini-excavator bucket tooth
On Aug 10, 1:20 am, Grant Erwin wrote:
My father-in-law asked me to make up a shank to replace the one on his Kubota tractor's backhoe attachment bucket. The tooth had come off years ago and the stub had worn down. The shank which we cut off was high-carbon steel, about 3/4 x 3/4". The tooth opening was 3/4 x 1/2" so we made up a shank that size from mild steel. Bent like cooked spaghetti. I'm assuming to get steel that resists bending much more, I'll have to use some kind of tool steel. Any suggestions? In my shop I have A-2, A-6, O-1, O-2, and S-7. Grant Did you heat treat the high carbon shank? If you don't heat treat, I don't think using any of the tool steels in the annealed condition will be any better. Dan |
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