This is part of an exhaust manifold off of a large CAT generator. It was cracked in the crotch of the “Y”. We ground out the crack to the full depth of the material then started welding the crack back up.
The repair was completed to the satisfaction of our customer and no leaks were reported. We do not have an oven so this cast iron was welded slowly and in a way that protected the piece from over heating.
The wear plates on this bucket were obviously worn. The way the wear bars were installed from the factory was not the best way. When the bars are installed parallel with the flow of the material they do not protect bucket well.
We removed the damaged wear bars and installed new wear bars perpendicular to the flow of material. The reason this configuration is better is the dirt (in this case) will get caught between the the bars and protect the bucket bottom. The material then is wearing against the hardened wear bars and dirt.
We could do this kind of work all day, we really enjoy working with pipe.
Pipe fabrication takes a different set of skills than structural fabrication and we thrive in the challenge.
We welded the pipe using a dual shield wire – E71T-1 – one of the easiest wires to use in a shop setting. It is termed “dual shield” because it uses both a shielding gas and flux which is inside the tubular wire.
This is the base of one of the legs of a three legged tower we worked on in May, 2012. This tower is in Fortuna, CA just south of Eureka. The weather was very nice for working when I was there, overcast and cool. However, when Dan was there they couldn’t work one of the days due to rain and wind. All the welding was done using flux core wire, E70T-8.
A local high end outdoor living retail store contacted us about repairing a piece of furniture they sold a couple of years ago. The manufacture would not warranty the piece any more.
The aluminum bar stool came to us in four pieces.
We were able to put it back together for less then half the cost of a new piece.
This opened the door to a new customer, the outdoor furniture store has since sent us a couple of other small aluminum repair projects. This is the way we grow, satisfying one customer at a time.
We do quite a bit of work for a local cemetery, from working on their trailers to mowers. This is a bronze place marker for one of the graves. While mowing the lawns they drive over these place markers and eventually break off the bolt attachment.
Typically the heat from the welding would discolor the top side. We remedy that by using several wet rags as a heat sink and put small stitch welds a little at a time on each all thread in rotation.
We used an aluminum bronze welding wire .035 diameter and straight Argon as the shielding gas.
We were called out by a Fire Prevention Company to repair some holes in a water tower. Interestingly enough, they found us on the Google search.
Several of the holes Dan was able to patch using one patch, however there were many which required one hole one patch.
It is always nice to work for a new company and have the opportunity to build a new relationship. Once they put some paint on this tank it would be difficult to see the repairs without standing right next to it.
Dan used E6010 welding rod which is used in many different applications including gas line and water lines. It is a nice rod to use when welding on thin material. The patches are 10 gauge sheet metal which is the approximate thickness of the tank walls. 10 gauge is nearly as thick as 1/8 inch.