Sky Aluminium Co., Ltd.

Calsonic Kansei Corporation

Sky Aluminum Co., Ltd.

Nippon Steel Sumitomo Metal Corporation

Furukawa-sky Aluminum Corporation

Toshio Komatsubara

Mamoru Matsuo

Tsutomu Tagata

Toshiki Muramatsu

Katsumi Uehara

Katsuhiro Kurokawa

Akihiro Tsurushima

Ken Takata

Noriyuki Kitahara

Koji Ichitani

An aluminum alloy material for high-temperature/high-speed molding containing 2.0 to 8.0 mass % of Mg, 0.05 to 1.0 mass % of Mn, 0.01 to 0.3 mass % of Zr, 0.06 to 0.4 mass % of Si and 0.06 to 0.4 mass % of Fe, with the balance being made of aluminum and inevitable impurities; an aluminum alloy material for high-temperature/high-speed molding containing 2.0 to 8.0% of Mg, 0.05 to 1.5% of Mn and 0.05 to 0.4% of Cr, Fe being restricted to 0.4% or less and Si being restricted to 0.4% or less, the grain diameter of a Cr-base intermetallic compound formed by melt-casting being 20 &#x3bc;m or less, and grains of intermetallic compounds with a grain diameter in the range from 50 to 1,000 nm as Mn-base and Cr-base precipitates being present in a distribution density of 350,000 grains/mmor more, the aluminum alloy material being used for high-temperature/high-speed molding by subjecting the alloy material to cooling at a cooling rate of 20&#xb0; C./min or more immediately after molding at a temperature range from 200 to 550&#xb0; C. and at a strain rate from 10to 10/sec; and a method of producing the aluminum alloy material.

Aluminum alloy material for high-temperature/high-speed molding, method of producing the same, and method of producing a molded article of an aluminum alloy

For driving a slide type air mix door, a driving mechanism is employed. The air mix door has a rack connected thereto. A gear unit is provided which includes an input gear, an output gear and a flexible structure through which the input gear and the output gear are integrally and coaxially connected. The output gear is operatively meshed with the rack. An electric actuator is provided for driving the gear unit through the input gear. Due to provision of the flexible structure, the electric actuator is prevented from being attached by an excessive load even when ill-matching occurs between de-energization of the electric actuator and arrival of the air mix door at a terminal stop position.

Mix door driving mechanism for use in automotive air conditioner

Gear for driving the slide door of air conditioner

Provided is a superplastic forming aluminum alloy in rolled form which exhibits superplasticity and has improved corrosion resistance, weldability, and strength and fatigue property after superplastic forming, eliminating a need for heat treatment after superplastic forming. Preferred alloys have an excellent outer appearance of grey to black color after anodization. The alloy consists essentially of, in % by weight, 2.0-8.0% of Mg, 0.3-1.5% of Mn, 0.0001-0.01% of Be, an optional element selected from C, V, and Zr, an optional grain refining agent of Ti or Ti and B, less than 0.2% of Fe and less than 0.1% of Si as impurities, and the balance of Al, wherein intermetallic compounds have a size of up to 20 .mu.m, and the content of hydrogen present is up to 0.35 cc/100 grams. Particularly when a minor amount of Ti or Ti and B grain refining agent is contained, Mn precipitates have a size of 0.05 .mu.m or larger, and the Si content in entire precipitates is less than 0.07% of the total rolled alloy weight, the rolled alloy is grey or black on the anodized surface.

Rolled aluminum alloy adapted for superplastic forming and method for

An Al-Si-Mg series aluminum-alloy rolled sheet for forming, having improved formability, corrosion-resistance, and weldability, essentially consisting of Si and Mg, whose contents are on and within the line connecting points A, B, C, D, E, and F of FIG. 1, except for the line FA, from 0.05 to 0.5% of Fe, and balance aluminum and unavoidable impurities, with the proviso that:

Aluminum-alloy rolled sheet for forming and production method therefor

A T4 tempered and straightened rolled sheet of the Al--Mg--Cu series aluminum-alloy which contains from 1.5 to 5.5% of Mg and from 0.18 to 1.5% of Cu as the essential alloying element, has excellent mechanical properties, an improved formability, of a non-generation of Luder's marks. After the T4 treatment and subsequent straightening, the sheet is subjected to heating to a temperature in the range of from 60.degree. to 360.degree. C., at a heating rate falling within the hatched region of FIG. 1 attached herewith, then holding within the hatched region of FIG. 2 attached herewith, and subsequently, cooling at a cooling rate falling within the hatched region of FIG. 1.

Aluminum-alloy rolled sheet and production method therefor

An aluminum-alloy rolled sheet particularly suitable for use for an automotive body contains from 0.4 to 2.5% of Si, and Mg and Cu in an amount depending upon the Si content as follows:

Production process for aluminum-alloy rolled sheet

Rolled aluminum alloy sheets having improved strength and formability are provided which are to be formed into parts for use in an application where a high strength is required after paint baking, for example, as automobile body sheets. The aluminum alloy has a composition consisting essentially of Si 1.2-2.5%, Mg 0.25-0.85%, Fe 0.05-0.4%, Cu 0.1-1.5%, and at least one of Mn 0.05-0.6%, Cr 0.05-0.3%, and Zr 0.05-0.15%, balance essentially aluminum.

Growing community of inventors

Tokyo, Japan

Toshio Komatsubara