Chip out of a bar

[slk]

Ok guys I have this bow off of my Super Wiz 66. I discovered a chip out of it and was wondering if it is any great deal to worry about? It is about 1/16" deep and 3/8" long. Should I try to file the leading edge so there is a bevel just so the chain does not try to grab at any time, or just leave it? I could try to silver solder it, but don't think that would hold up.


Steve




 

[ettrick]

I would definitely file at a minimum. I have found it is very useful to use a dremel tool to shape things as i see fit. You could also build it up with a wire feed welder before taking a dremel to it.
Dan

[slk]

Well I do have a wirefeed welder, but did not want to destroy anymore of the bar than I already have with the chip. You would have to have something on the inside groove that the weld would not stick to, or else you would be trying to file the inside down as well.

I am not so sure that the chain will even know there is a chip.

Steve

[ettrick]

Thats where the dremel comes in. That groove would take only minutes to put back in with a cutting disc.
Dan

[baker6x6]

You could also trim a penny to fit the groove... then weld the bar. Mig-weld will not stick to the copper.

[sawnami]

A hard facing welding rod would recreate the hardness of the missing area. The down point is that it is so hard that a grinder barely touches it. You would not want to overdo the amount of weld that you applied.
I would probably run it as it is.

[sweepleader]

baker6x6 is right, the weld will not stick to copper, but pennies have very little copper in them these days. They are mostly zinc which will melt away very quickly.

The hard edge might break away more if the welding was not exactly right. I would run it like it is or dremel the corners off just a little. The photos show a crack about an inch away, that could be trouble too. There might be some bend there or other signs of damage elsewhere along the bar.

I would not be sawing in the area of that damage, just to be on the safe side.

[sparky]

I was a weldor for almost 30 yrs. I think you could fill the gap with a mig ok. A 3/8 gap isn't much. Take a piece of sheet copper to make a backing plate to fit groove. Clamp bow down flat. The crack is another issue. That would need to be grooved out and a hole drilled thru end of crack so it doesn't propagate farther. The saw chain links may be long enough to bridge gap so you might be able to clean up edges with dremel and be ready to cut wood.

[fossil]

Is that steel or stellite that's chipped out?