Four Paws
Addicted to ArboristSite
What did you guys get accomplished this weekend?
I tried my hand at welding Magnesium.
I had this cracked side cover that needed to be repaired.
Picked up some MAG rod from the local welding store.
Magnesium is similar to Aluminum, you can't ever seem to get it clean enough prior to welding. I used my TIG machine set at 75 amps with a pulse frequency around 8 Hz. I bevelled the crack with my dremel, preheated the casting in the oven, and welded from the center out to the edges of the crack. Good penetration looking at it on the backside, although there is a little porousity evident after I ground it flush. I attribute this to the fact that the casting soaked up bar oil and other contaminants which were being driven out by the heat and cleaning action of the AC. Overall, it turned out just fine - it is a chainsaw after all.
Gave it 2 coats of paint and cooked it in front of my wood stove - still snowing here; about an inch today. Put it back together - now it's ready to go.
I tried my hand at welding Magnesium.
I had this cracked side cover that needed to be repaired.
Picked up some MAG rod from the local welding store.
Magnesium is similar to Aluminum, you can't ever seem to get it clean enough prior to welding. I used my TIG machine set at 75 amps with a pulse frequency around 8 Hz. I bevelled the crack with my dremel, preheated the casting in the oven, and welded from the center out to the edges of the crack. Good penetration looking at it on the backside, although there is a little porousity evident after I ground it flush. I attribute this to the fact that the casting soaked up bar oil and other contaminants which were being driven out by the heat and cleaning action of the AC. Overall, it turned out just fine - it is a chainsaw after all.
Gave it 2 coats of paint and cooked it in front of my wood stove - still snowing here; about an inch today. Put it back together - now it's ready to go.
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They know I was putting in some soil, but..
