Method and apparatus for welding two work pieces
September 24, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod of joining non-fusible workpieces using frictional energy Pressure welding metal bars together Cutting finger for finger-bar cutters Method of forming hard facings on materials Hollow fiber filter Secondary conductor of an elevator-driving linear induction motor Counterweight attachment technique Tank and method of fabrication Adjustable pin for friction stir welding tool Programmable friction stir welding process InventorsAssigneeApplicationNo. 962482 filed on 09/24/2001US Classes:228/112.1, Using dynamic frictional energy (i.e., friction welding)156/73.5, Friction treatment (e.g., welding)156/580, Presses or press platen structures, per se228/2.1INCLUDING MEANS TO PROVIDE HEAT BY FRICTION BETWEEN RELATIVELY MOVING SURFACES (I.E., FRICTION WELDER)ExaminersPrimary: Dunn, TomAssistant: Edmondson, L. Attorney, Agent or FirmForeign Patent References
International ClassesB23K 031/02B23K 020/12 B23K 037/00 B29C 065/06 Foreign Application Priority Data1999-03-24 DEAbstractA method of welding two work pieces that define a connecting zone between them is described. A friction pin is fed at a starting point into the connecting zone and into opposite regions of the work pieces on both sides of the connecting zone. The friction pin is moved in a welding direction along the connecting zone resulting in the work pieces being welded. The friction pin is led out of the connecting zone after welding the work pieces. The friction pin is fed into a sacrificial element while lifting the friction pin.Field of SearchUsing dynamic frictional energy (i.e., friction welding)INCLUDING MEANS TO PROVIDE HEAT BY FRICTION BETWEEN RELATIVELY MOVING SURFACES (I.E., FRICTION WELDER) By rotating one work surface relative to another about an axis Particular material (e.g., dissimilar, aluminum) By localized projection Friction treatment (e.g., welding) Presses or press platen structures, per se | |
