Search found 178 matches

by vex_zg
May 04 2016 10:41am
Forum: Battery Technology
Topic: 18650 spot welding -how to- ULTIMATE REPOSITORY
Replies: 790
Views: 195586

Re: 18650 spot welding -how to- ULTIMATE REPOSITORY

Does anyone know of any success examples with copper? I have seen a lot of attempts and failures. Can we find any examples of success? Sunstone's pulse arc welder would work great for copper. So what are the requirements for successfully welding copper? I saw people mentioning 25-35V, and 600J, but...
by vex_zg
May 04 2016 10:38am
Forum: Battery Technology
Topic: 18650 spot welding -how to- ULTIMATE REPOSITORY
Replies: 790
Views: 195586

Re: 18650 spot welding -how to- ULTIMATE REPOSITORY

Did you check with Sunstone Engineering to get there take on it? Did you do a softer 'round' tip as a-posed to a pointy tip? http://sunstoneengineering.com/products/accessories/electrodes/ Sunstone email for Bryce, bryce.bytheway@sunstoneengineering.com I have a 3 farad 23.2 volt CD welder dual pul...
by vex_zg
May 04 2016 3:18am
Forum: Battery Technology
Topic: 18650 spot welding -how to- ULTIMATE REPOSITORY
Replies: 790
Views: 195586

Re: 18650 spot welding -how to- ULTIMATE REPOSITORY

Hi All. My first post I think after half a year of lurking. I just finished building a CD welder (10-20V, 1F, 25x MOSFET, dual pulse configurable, AWG3 wire to electrodes...) Nickel welds like a dream. Copper 0.1mm Tabs I can't get to weld unless I increase the voltage so high that I blow a hole in ...