Method for metal bonding
AssigneeGeneral Electric Company
InventorJohn W. Zelahy
Life of this patent
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Abstract
Simple or complex cross-sectional configuration metal components of an article are bonded together through a forged joint with application of localized high frequency induction heating combined with high energy rate impacting of the metal components together. An improved induction heating and impacting apparatus is provided, including an induction heating element the shape of which varies with substantial variations in the cross-sectional area of each component to provide substantially uniform heating.
Claims5
An improved method for metallurgically bonding a plurality of metal components at cooperating interface portions of the components, comprising the steps of:
- positioning the cooperating interface portions in spaced apart opposed relationship;
- applying high frequency induction heating to the interface portions from within the space between them, the heating being controlled as a function of the heating rates of the metal of the components and the cross-sectional shapes of the cooperating interface portions of the components to produce substantially uniform heating concurrently across the opposed interface portions to heat the portions to a temperature less than that which will detrimentally affect the metal of the components but at which metal upset can occur;
- and then
- impacting the opposed portions together at a high energy rate with a force sufficient to upset each opposed portion and to expel metal from each component from between the impacting portions to produce a forged joint.
Dependencies are inferred from the claim text.