LG washing machine motor as generator


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phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2301
Posted: 11:09pm 23 Apr 2024      

Resistive losses are a little higher for aluminium but not a deal breaker.

Twisting the wires won't last long as the oxide film that forms on the surface is non-conductive and quite tough. You need screw connectors that can maintain sufficient pressure (but not too much, aluminium is soft) to prevent oxide forming at the points of contact. Under pressure aluminium can "cold flow" so the screws need tightening occasionally.

Long ago it was possible to get solder and flux for aluminium but it was only suitable for busbars and very thick cables. It contained an abrasive to scrub off the oxide. The surfaces were first heated and tinned while scrubbing with a wire brush.
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Edited 2024-04-24 09:12 by phil99