Doing 100 pcs. I just do the welding as my customer is the machine shop. Not sure what the end use is but we (the machinist & I) did this job for two years & then lost it due to price. Apparently the end user has bought them from a few different people since then for less money & finally realized cheaper isn't always the best option so now they are back to us because of quality issues.
Aluminum round that has a cavity bored into it with some ports & a slug with fancy machining on the inside that is then pressed in. I just preheat & weld. 3/64" 4043 wire, 27.5 volts, 4.5 wire speed on a 30a spool gun, two passes, wire brushed, done.

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Aluminum round that has a cavity bored into it with some ports & a slug with fancy machining on the inside that is then pressed in. I just preheat & weld. 3/64" 4043 wire, 27.5 volts, 4.5 wire speed on a 30a spool gun, two passes, wire brushed, done.
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