Historically, balling the tip of the electrode was the default process to prepare it for AC TIG welding (most notably for ...

Features. An AC/DC electrode for heavy impact and abrasion on carbon and manganese steels. Hardness up to 54-56 Rockwell C. Can be used with low voltage machines. [See More] ...

which provide the high current required to do copper spot welding properly. They are wired in series and connected to his electrodes using heavy gauge wire. The graphite-tipped electrodes were an ...

Electrical contacts consist of a high-conductivity, soft, and oxidation-resistant material, often with a second phase to provide anti-welding and/or arc-resistance. They are used in circuit breakers, ...

2 Resistance spot welding A method of spot welding of two metal plates by overlapping them, and applying pressure with a copper electrode while passing a large current through them to form a molten ...