I am making a stand for my bench grinder and have made a reasonable start. Well at least I have bought most of the material from the local scrap yard. The very bottom is a truck brake drum. Bolted to that is a car disk brake. Next is a piece of 6 inch steel pipe that will be welded to the car disk brake. And on the top will be a steel plate welded to the pipe. The steel pipe is about a foot too long right now. The bottom three pieces weight 140 lbs. The plate I still have to find.
Now my questions are: I am assuming the car disk brake is a pretty good grade of cast iron, maybe nodular iron. Anyone know. Can I nearly treat it as if it is steel? Or do I need to use a weed burner on it to heat it before welding. I am planning on using some monel rod ( because i have a bunch of monel rod on hand ) and a stick welder and not weld the entire circumference of the six inch steel pipe. Instead just weld three beads about 3 inches long. So would have 9 inches of bead whereas welding the entire circumference would be a bit more than 18 inches. I plan on welding with the pipe vertical and using three bits of 1/8 inch welding rod to space the pipe away from the car disk brake to allow for shrinkage of the weld bead. Or would it be better to just use two bits of welding rod each side of where I am going to put the first bead and have the pipe leaning away from the side where the bead is going?
Normally I would just go ahead and weld it, but I need to wire brush the parts. And the parts are each heavy enough as is. So will wait until they are wire brushed before welding the disk brake to the pipe.
So any comments?