| 摘要 |
A spot weld electrode shank/cap assembly includes a fluted electrode shank and, preferably, an internally finned electrode cap where each of the shank and cap may be fluted along their external bodies and in fluid communication with a gas delivery tube for delivering an inert gas to an aluminum work piece surface. Alternatively, the shank/cap assembly includes an electrode shank with a domed electrode cap, the assembly being in fluid communication with a gas delivery tube having a fluted inner wall. |
