12 years ago
Sent to sci.engr.joining.welding, too, but so as not to crosspost and annoy
the ankle biters:
Arrived home to find my front yard completely destroyed by a backhoe. It
started the day before I left. Failed leach field. Built on a caliche
base, so no drainage. This guy dug deep into the caliche, but didn't get
through it. We are going to meet tomorrow to see if we are going to
fracture it with dynamite, or if we can bore some big holes and punch
through the caliche.
Anyway, he broke some ripper claw teeth. Haven't seen them yet, so don't
know the degree of destruction. But I imagine that they could be built up
with 7018, then hardfaced. I did it once before on some. A lot of welding,
but it works.
My questions are about hardfacing. I have never burned a hardface rod. I
am assuming that they run like a 7018, and that one needs to keep a short
arc, keep the arc in the puddle, and other things normally done with 7018.
Am I right? Any concerns about laying this over a layer of 7018? I can do
then in the flat position, so would it be good to crank up the amperage?
Should I consider 11018? I am going to get some drill pipe soon to build
pole barn structures, and 11018 was suggested to avoid cracking.
Help and pointers appreciated. Brands of rods? Things to AVOID?