Uacj Corporation

Canon Kabushiki Kaisha

Tomoyuki Kudo

Takashi Murase

Ryohei Kobayashi

Yoshifumi Shinzato

Ryo Kuramoto

Makoto Saga

Takeshi Koshio

An aluminum alloy sheet has a composition comprising 0.5% or less by mass of Si, 0.7% or less by mass of Fe, 0.3% or less by mass of Cu, 0.4 to 1.5% by mass of Mn, 0.7 to 1.5% by mass of Mg and an balance comprising Al and inevitable impurities. A degree of integration in the Goss orientation is 1.5 or more. A degree of integration in the Cu orientation is 6.2 or less. A tensile strength is 200 to 310 MPa. An areal ratio of an α-Al—Fe—Mn—Si based intermetallic compound with an equivalent circle diameter of 0.5 μm or more is preferably 2.6% or more.

Aluminum alloy sheet

The present disclosure shows a superplastic-forming aluminum alloy plate that has excellent properties for superplastic-forming, such as blow forming, and that has excellent surface properties after forming. Shown is a superplastic-forming aluminum alloy plate and a production method therefor, the superplastic-forming aluminum alloy plate being characterized by comprising an aluminum alloy which contains 2.0 to 6.0 mass % Mg, 0.5 to 1.8 mass % Mn and 0.40 mass % or less Cr and in which the balance consists of Al and unavoidable impurities, wherein the unavoidable impurities are restricted to have 0.20 mass % or less Fe and 0.20 mass % or less Si, the 0.2% proof stress is 340 MPa or more, and the density of intermetallic compounds having an equivalent circular diameter of 5 to 15 &#x3bc;m at the RD-TD plane which extends along the center of the plate cross-section is 50 to 400 pieces/mm.

Superplastic-forming aluminum alloy plate and production method therefor

Provided is an aluminum alloy plate for blow molding comprising: 0.3% by mass or more and 1.8% by mass or less of Mg; 0.6% by mass or more and 1.6% by mass or less of Si; and 0.2% by mass or more and 1.2% by mass or less of Mn; wherein, in at least one surface of the aluminum alloy plate for blow molding, X and Y satisfy the following relations: 0.10&#x2264;X, and, Y&#x2265;&#x2212;8.0X+10.8; wherein X represents the ratio of regions whose valley depth in a roughness curve is 0.3 &#x3bc;m or more; and Y represents the yield stress upon deformation of the aluminum alloy plate for blow molding under predetermined conditions.

Aluminum alloy sheet for blow molding and production method therefor

The metal forming method includes deforming a member to be formed () that includes a second metal and that has been heated and bringing the member into contact with a member to be bonded () that includes a first metal and that has been heated, in which the temperature of the member to be bonded () is a temperature at which a liquid phase percentage in the member to be bonded () is from 5 to 35%.

Metal forming method and formed product

A light amount adjusting apparatus for an image pickup which is capable of reducing the force with which a plate member and a blade member are held in close contact with each other and driving the blade member smoothly even in a high-humidity condition. The apparatus includes a base platehaving an opening, a blade membermovable within a range including a position where the blade member overlaps the openingin a light axis direction and restricting the amount of light passing through the openingby overlapping the opening, and a plate memberadjacent to the blade memberand having a cut portionat a position where the plate member overlaps the blade memberin the light axis direction in a state in which the blade memberis at a predetermined position.

Light amount adjusting apparatus and image pickup apparatus

Disclosed is a light amount adjusting apparatus for an image pickup apparatus which is capable of reducing the force with which a plate member and a blade member are held in close contact with each other and driving the blade member smoothly even in a high-humidity condition. The light amount adjusting apparatus includes a base platehaving an opening, a blade membermovable within a range including a position where the blade member overlaps the openingin a light axis direction and restricting the amount of light passing through the openingby overlapping the opening, and a plate memberadjacent to the blade memberand having a cut portionat a position where the plate member overlaps the blade memberin the light axis direction in a state in which the blade memberis at a predetermined position.

Growing community of inventors

Tokyo, Japan

Tomoyuki Kudo