To provide an aluminum alloy member exhibiting high strength and high thermal conductivity by forming a thin heat dissipation member such as a heat sink by die-casting using an inexpensive scrap raw material and subjecting the formed member to a heat treatment, and to provide a method for producing the same.
An aluminum alloy member having high strength such that the tensile strength is ≥200 MPa at room temperature and a thermal conductivity of ≥145 W/K×m is characterized in that it includes, by mass, >8% and <11% of Si, >0.2% and <0.3% of Mg, >0.3% and <0.7% of Fe, >0.15% and <0.35% of Mn, >1% of Fe+Mn×2, >0.005% and <0.020% of Sr, <0.2% of Cu, and <0.2% of Zn, with the remainder comprising Al and inevitable impurities, and that it is kept at a temperature of >200°C and <250°C for 0.1 to 1h after casting. A method for producing the aluminum alloy member is also provided.
SHIMOSHIGE NAOHIKO
HATA TSUNEHISA
HONDA MOTOR CO LTD
| JP2005281829A | 2005-10-13 | |||
| JP2002105611A | 2002-04-10 | |||
| JP2011132604A | 2011-07-07 | |||
| JP2006063420A | 2006-03-09 |