Method of Eliminating the Heat-Affected Zone in a Welded Article
AssigneeDusan Milicevic
InventorDusan Milicevic
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Abstract
A method of manufacturing a crankshaft comprising providing two parts, each part comprising two webs, a portion of a crank journal and a portion of a main journal, welding the two portions of the crank journal together, heating the crank journal, inserting a shim between the webs, and upset forging to reduce the length of the crank journal to form a forged segment. Alternatively, the portions of the main journal may be welded, heated, shimmed, and forged to form a forged segment. The crankshaft may be lengthened by adding additional parts or forged segments using the same steps. A production line for carrying out this method when producing a crankshaft with n number of crank journals, where n is an even integer.
Claims16
1-20. (canceled)
A method of manufacturing a welded article comprising steps of:
- providing two parts each part comprising a central element and a portion of a first component on one side of the central element:
- welding the two portions of the first component together to form a segment comprising two central elements and a welded first component;
- heating the welded first component;
- inserting a first shim between the central elements of the segment;
- and
- upset forging the segment to reduce a length of the welded first component and create a first forged segment.
Dependencies are inferred from the claim text.