Ben Coody you will likely be able to get a lot better weld on it with that, even if you're a bit green. I would suggest you get a piece of 1/4" scrap and start playing with it, you might get confident a bit quicker than you think, and might avoid burning up your tig torch!
Aren Jenkins
Ketchikan, AK, United States
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Commented on Today is a first for me. I’ve welded ...
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Posted
00:16
4140 material. 11" OD. Some parts for a mining company. These weld into each side of a large frame and create a trunion for an underground wheel loader axle to pivot on.
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Posted
Had to machine a big roller for a taper lock bushing. Originally this was going to get a different form of mechanical shaft lock, but was changed to a taper lock after I had already machined the bore out to nearly the bolt circle of where the locking threads needed to be.
On a cnc machine I could have thread milled the half threads, but my shop is all manual.
My solution was to finish machine the bore of the roller out to the minor diameter of the taper for the bushing, and then I machined a plug that had a couple tenths of clearance so it was a nice snug but still hand fit in the bore. I was able to spot face, drill, and tap very easily and end up with nicely half threaded holes with no drama. Then I setup back in the lathe and machined the taper to size for the bushing.
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Commented on Hate to ask a dumb question but how p...
Jul 14 at 04:34 PM
Not a dumb question. I would bet that you are floating crap up to the top of the puddle and the cleaning action is eventually taking care of it, somewhat, It won't completely clean it. It is porosity that you are seeing, and you need to be careful as you may just be covering it. Aluminum oxide melts at a higher temperature than the aluminum underneath, so it can apear as bubble if it floats up.