초록 ▼

Aluminum alloy atomized or other powder is compacted and shaped into a useful article including heating the compact rapidly by induction heating techniques. Such rapid induction heating results in improved strength or toughness properties without substantial penalty in elongation, thereby rendering

Aluminum alloy atomized or other powder is compacted and shaped into a useful article including heating the compact rapidly by induction heating techniques. Such rapid induction heating results in improved strength or toughness properties without substantial penalty in elongation, thereby rendering the product so produced more useful in high strength applications. The product so produced may be subsequently shaped by forging, extruding or rolling processes.

대표청구항 ▼

A method of producing an improved metal article having improved mechanical properties comprising the steps: (a) providing metal alloy particulate, said alloy being selected to provide strength enhancing dispersed particles capable of degradation at elevated temperatures; and (b) heating said metal t

A method of producing an improved metal article having improved mechanical properties comprising the steps: (a) providing metal alloy particulate, said alloy being selected to provide strength enhancing dispersed particles capable of degradation at elevated temperatures; and (b) heating said metal to elevated temperature at a rapid heat-up rate and compacting said metal at elevated temperature to a substantially full density compact, said heat-up rate being such that said heating of said metal to elevated temperature is effected in not more than 0.2 hour for each inch of thickness of said compact, thereby improving said compact such that products made therefrom exhibit an improvement of at least 5% in one or more mechanical properties over a product likewise produced except for said heating occurring over a substantially longer time.