welding cast aluminum
welding cast aluminum
(OP)
i have to weld some stock on a cast aluminum engine block from a snowmobile. i have no idea what type of AL it is or what kind of filler to use. i plan on TIG welding. what types of aluminum are commonly used for this type of casting?
RE: welding cast aluminum
The 2000 series heat treated alloys are the most common. Common alloys are 2618-T61 or 2018-T61.
Alternating current is recommended for general-purpose work since it provides the half-cycle of cleaning action. When manual welding, the arc length should be kept short and equal to the diameter of the electrode. The tungsten electrode should not protrude too far beyond the end of the nozzle. The tungsten electrode should be kept clean. If it does accidentally touch the molten metal, it must be redressed. The shielding gases are argon, helium, or a mixture of the two. Argon is used at a lower flow rate. Helium increases penetration, but a higher flow rate is required.
Cheers
RE: welding cast aluminum
RE: welding cast aluminum
DO NOT GUESS AS TO THE ALLOY/TEMPER... the results could be: (a) "ok"; (b) "aw-shit"; or (c) "catastrophic" [to YOU personnaly]! Are You in a betting mood????
Contact the manufacturer for the ACTUAL material/Temper... then make informed welding decisions!
Regards, Wil Taylor