The first week we worked on Oxy-Fuel. We were welding 18 and 16 gauge metal. We did Lap Joints, T-Joints, inside and outside corners. I didn't get butt joints done yet.
Then we moved to arc welding. I move to vertical tomorrow night. I am using 6010 & 6011 5/32. The like to give us the most challenging stuff to start /forums/images/graemlins/smile.gif So it is gratifying when the instructor says, "good job".
The rebar slag hammer is great. Using 3/4" rebar you do the pointy end first. We cut the head to about 6 inches (the thicker the rebar the shorter you can have it). We used a cutting torch to heat the end of the rebar to red hot, then using a hammer (we used a ballpeen hammer) pound and form to a point. Easier than it sounds actually. Oh, I am holding the other end with a pair of vice grips.
Anyway after I am happy with the pointed end, I went to work on the angle. This time I am just working on two sides. Again, heating the rebar to red hot and then hammering.
After the shaping we could either cut the head in two and put it on a rebar handle or weld the head to handle. I choose to cut the head and weld it to the handle. Once I attached it, I again heated the ends to red hot and then quenched them in hydraulic fluid.
The rebar slag hammer really holds its edge well and it is actually sharper than the store bought ones.
One of the students actually took some bar stock for his handle. He twisted it and made a separate handle wrap. Really good looking.
As soon as I finish vertical I will move to MIG for a couple of weeks, then TIG. It is really cool to have enough time to become comfortable with each process and to learn how to set the machines for the type of welding you are going to do.
I have all Oxy-Fuel, Stick, MIG, and TIG welding equipment available at home, so learning each process is worthwhile. /forums/images/graemlins/smile.gif
Here is a sample from tonight's class. This is an 8 inch 3/8" bar stock. The T-Joint was welded overhead with E-6011 5/32". There are 6 passes on the joint. I still am working on consistancy, but I am having a great time.