Aluminum alloy bearing for use in low-rigidity housing and method of producing same
AssigneeDaido Metal Company Ltd.
InventorsTadashi Tanaka, Masaaki Sakamoto, Yoshiaki Sato, Tohru Kato
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Abstract
An aluminum alloy bearing for use in a low-rigidity housing, includes a bearing aluminum alloy, and a steel back metal bonded to the bearing aluminum alloy. The steel back metal contains 0.16 to 0.35 wt. % of carbon, and the steel back metal has a hardness of Hv 200 to 280 and has an elastic limit of not less than 40 kgf/mm.sup.2. For producing the aluminum alloy bearing, the back metal material is pressure-bonded to the bearing aluminum alloy in such a manner that the rolling reduction of the back metal material is 38 to 50%.
Claims8
An aluminum alloy bearing for use in a low-rigidity housing, comprising a bearing aluminum alloy;
- and steel back metal bonded to said bearing aluminum alloy;
- said steel back metal containing 0.16 to 0.35 wt. % of carbon, said steel back metal having a hardness of Hv 200 to 280 and having an elastic limit of not less than 40 kgf/mm.sup.2.
A method of producing an aluminum alloy bearing for use in a low-rigidity housing, said aluminum alloy bearing comprising a bearing aluminum alloy, and a steel back metal bonded to said bearing aluminum alloy, said method comprising the step of:
- pressure-bonding a strip of steel, containing 0.16 to 0.35 wt. % of carbon, to a bearing aluminum alloy strip to form a composite material, the rolling reduction of said steel strip at the time of said pressure bonding being 38 to 50%, said steel back metal defined by said strip steel of said composite material having a hardness of Hv 200 to 280, and said steel back metal having an elastic limit of not less than 40 kgf/mm.sup.2.
Dependencies are inferred from the claim text.