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Welding hi-carbon steels

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Micheal

11-30-2000 05:55:56




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Hi, I am finishing up construction of my backhoe bucket. I am going to use a plow lay for the cutting edge. what is the best process to weld this to the cold-rolled steel bucket? AC/DC with 7018 electrode or something else? I assume that an AC buzz box with 6013 or 6011 is out of the question.
thanks for your help.
micheal




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Greg

12-02-2000 14:28:26




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 Re: welding hi-carbon steels in reply to Micheal, 11-30-2000 05:55:56  
The 7018 series of electrodes has several different AWS designations. If memory serves me correctly, you might want to consider (if you are going to use 7018) an electrode with an AWS E7018 H8R designation.

There are so many different electrodes and wires available for different applications, I find myself often referring to the welding guide, technical guide, filler metal guide, or whatever these different manufacturers call their books or manuals.

My preferred process for this would be GMAW, as I currently have a roll of Hobart HB-18 in the MIG with a 75/25 gas mix. I'd probably clamp and/or tack, preheat, and maybe even do some backstep welding.

Whichever method you choose or have available, be sure to know the welding parameters for the rod and metal and work within them.

Good luck. Would you please post a picture of your project when you've finished it?

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jeff

11-30-2000 18:38:48




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 Re: welding hi-carbon steels in reply to Micheal, 11-30-2000 05:55:56  
We have used 7018 with great results as you said.



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Norm

11-30-2000 15:34:16




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 Re: welding hi-carbon steels in reply to Micheal, 11-30-2000 05:55:56  
I extended the cutting edge out to the front of my loader bucket 5 years ago by welding a grader blade on it. I used 7018 rod with my old Forney ac welder. Still works.



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Joe

11-30-2000 13:02:37




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 Re: welding hi-carbon steels in reply to Micheal, 11-30-2000 05:55:56  
I built a loader bucket in the summer and used the 7018 rods. I've been ramming into rocks digging gravel and have not had a problem.
Are you building the hoe from scratch? If so where did you get the plans?



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micheal

11-30-2000 15:13:07




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 Re: Re: welding hi-carbon steels in reply to Joe, 11-30-2000 13:02:37  
Thanks Joe,

Yes i am building it from the ground up. I started with a set of Cadplans for there largest 3 pt rig, then modified quite a bit to use some stuff i had laying around. I had some cylinders from an old loader, i wanted a bit more reach then they offered and i had an old bucket from an old JD hoe from a 310 rig that i got for next to nothing, so i got some computer software and measured and plotted and calculated until i had a workable design somewhere in between cadplans and a jd hoe. Havent tried digging yet but almost have it finished.
email me if you want more info.
micheal

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BlueLight

11-30-2000 08:41:50




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 Re: welding hi-carbon steels in reply to Micheal, 11-30-2000 05:55:56  
Mike, I don't do much high carbon welding
but if it's any use to you my book (Arc Welding lessons for School and Farm, James F. Lincoln Arcwelding Foundation) says to use E7016.



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micheal

11-30-2000 11:38:00




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 Re: Re: welding hi-carbon steels in reply to BlueLight, 11-30-2000 08:41:50  
thank you,

I hadn't thought of 7016. thanks very much,.

micheal



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