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US 8,299,388 B2Granted
Finned resistance spot welding electrode
AssigneeCmw International, Inc
InventorDavid C. Fleckenstein
Life of this patent
Estimating the term…
Abstract
Disclosed is a cooled welding electrode with a plurality of fins in the water well, where the fins are tapered between approximately 10 degrees and 45 degrees.
Claims16
A welding electrode comprising:
- a housing comprising an open end, a closed end and a water well formed therein extending from said open end toward said closed end, said water well comprising an end wall portion and a side wall portion;
- a mounting portion proximate to said open end;
- a tip portion proximate to said closed end;
- and
- a plurality of fins disposed within said water well and extending between said end wall portion and said side wall portion, said fins each comprising a first and second tapered side angled at a taper angle between approximately 10 degrees and 45 degrees.
2 more elements
A method comprising:
- spot welding a first and second metal sheet together by squeezing the first and second metal sheet together between a first and second electrode, applying a welding potential across the first and second electrode, thereby generating a weld current through the first and second metal sheets, flowing a cooling fluid through the first and second electrode and holding the first and second metal sheet together after removing the welding potential from across the first and second electrode, wherein the first electrode includes a housing including an open end, a closed end and a water well formed therein extending from the open end toward the closed end, the water well including an end wall portion and a side wall portion, a mounting portion proximate to the open end, a tip portion proximate to the closed end and a plurality of fins disposed within the water well and extending between the end wall portion and the side wall portion, the fins each including a first and second tapered side angled at a taper angle between approximately 10 degrees and 45 degrees.
Dependencies are inferred from the claim text.