https://stream.echo6.co/videos/watch/a1d45708-59b2-4dc9-b913-0569e370eb13 http://www.weldingtipsandtricks.com/tig-welding-aluminum-parts.html tig welding aluminum parts using preheat to prevent melting off thin edge using 100-150 hz ac frequency and 65-70 % EN on ac balance helped. mostly, directing arc to thick part helped Wed, 22 Apr 2026 04:32:55 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/a1d45708-59b2-4dc9-b913-0569e370eb13 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.