METHOD FOR PRODUCING ALUMINUM COMPOSITE MATERIAL

• Main Authors: OKANIWA, SHIGERU, NISHIYAMA, TOSHIMASA, KITA, HIROAKI, AOYAMA, SHIGEKI
• Format: Patent
• Language: English; French; German
• Published: 05.10.2011
• Subjects: ALLOYS; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

[PROBLEMS] To provide a method for producing an aluminum composite material having a great content of a ceramics with ease. [MEANS FOR SOLVING PROBLEMS] A method which comprises (a) a step of mixing an aluminum powder and ceramic particles, to prepare a mixed material, (b) a step of subjecting the above mixed material to electric pressure sintering together with a metal sheet material, to form a clad material comprising a sintered product covered with the metal sheet material, and (c) a step of subjecting the above clad material to a plastic working to prepare an aluminum composite material. In the (b) step, the mixed material is sandwiched between a pair of metal sheets or a powder of the mixed material is held in a metal container, the mixed material is placed in a forming die in a state in which the metal sheet material is pressurized by a punch, and the mixed material is compressed together with the metal sheet material. The metal sheet material is made of aluminum or stainless steel.