Bearing steel material 440C Stainless Steel, was directly joined to Aluminium Alloy 6061 to form a machinable weldment suitable to manufacture a precision, special purpose aerospace component. CO2-laser heat treatment was successfully used to transformation harden the bearing surfaces in the final configuration. This combination of materials and sequence of processes reflect one approach to solving a difficult design objective. The final configuration met the end-intem dimensional requirements and entered preliminary testing, during which acceptable performance was observed. Life testing of the prototype components was not performed. This effort successfully demonstrated that a combination of dissimilar metal friction welding and selective laser heat treatment could be combined to meet a demanding prototype aerospace application.
Friction welding and laser heat treatment of dissimilar metals
Reibschweißen und Laserwärmebehandlung von Aluminium-StahlVerbindungen im Flugzeugbau
1996
6 Seiten, 4 Bilder, 4 Tabellen
Conference paper
English
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