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Posted by ** Frank ** on July 1, 2007, 1:59 pm
Please log in for more thread options Cool, I'll try that when I have some time.
> The really scary one is welding common rebar. Most of the bar you would
> see at a home store or otherwise laying around is either .4% or .6%
> carbon. If you weld that and cool it rapidly, it gets very hard and
> brittle. I do a demo where I weld it with a stick welder then plunge it
> into cold water to chill it quickly. It will shatter like glass when
> dropped on the floor from chest height.
>
> ** Frank ** wrote:
>>
>>>Harder steels are either higher carbon or higher alloy. Either one can
>>>give you troubles with poor penetration or brittle welds. Your welder can
>>>be made to work on these steels but Lincoln does not want to be
>>>responsible for training you on how to do them properly.
>>>
>>>If you post a specific steel, thickness, and application that you are
>>>trying to work on, someone here can give you hints on how to make it
>>>work.
>>>
>>
>>
>> Thanks RoyJ. I know it can weld harder steel as I fused my lockjaw pliers
>> together by mistake. I'll play around with the Lincoln some more and post
>> back when I have something more specific. Thanks again.
>>
>>
>>
>>
>>>** Frank ** wrote:
>>>
>>>>I have a Lincoln WeldPack 100 using the recommended 0.035" innershield
>>>>wire. The manual states it can only weld mild steel but what does it
>>>>take to weld harder steel with this thing?
>>
>>
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> The manual states it can only weld mild steel but what does it take to weld
> harder steel with this thing?
>
>