Abstract: A blade structure of a torque converter, having a plurality of blades, is produced according to processes. The processes has (a) stamping a plane plate into a first shape, the first shape has (i) the plurality of circumferentially arranged blades, (ii) ring-shaped first connecting portions, each of which integrally couples the adjacent blades together at an outer circumference side of the blade structure, and (iii) ring-shaped second connecting portions, each of which integrally couples the adjacent blades together at an inner circumference side of the blade structure, (b) curving a surface of the stamped blade, (c) inclining the blade at a predetermined angle with respect to the first and second connecting portions while inclining the first and second connecting portions, and (d) adjusting a distance between the adjacent blades and shrinking the first shape in a radial direction by the inclination of the first and second connecting portions.

Abstract: A blade structure for a torque converter is produced as follows. A flat sheet is stamped into a shape including: a holding section; an inner connecting section located around the holding section, and held by the holding section; an outer connecting section located around the inner connecting section; and a plurality of blades connected between the inner connecting section and the outer connecting section. Then, the blades are bended into a curved shape between the inner connecting section and the outer connecting section. Then, the blades are angled by a predetermined angle with respect to the inner connecting section and the outer connecting section. Then, the holding section is displaced with respect to the inner connecting section perpendicularly of the sheet so as to shrink the sheet toward the holding section and shrink spaces between the blades. Then, the displaced holding section is removed from the sheet.

Abstract: A blade structure for a torque converter, produced by a process including the steps of: stamping a flat blank into a first annular plate that includes a first connecting ring portion, a second connecting ring portion, and a plurality of blades spaced from each other in a circumferential direction of the first and second connecting ring portions; bending the blades into a curved shape curved with respect to the first annular plate; bending the blades to be inclined by a predetermined angle with respect to the first and second connecting ring portions; and expanding the first annular plate outwardly in a radial direction thereof to thereby form a predetermined annular shape that has a larger radial dimension than the first annular shape and a larger circumferential distance between respective adjacent two of the blades than that in the first annular plate.

Abstract: A semiconductor device includes a semiconductor substrate, an interlayer insulating film, a tungsten film, a first barrier metal film, a second barrier metal film and a metal wiring film. The interlayer insulating film is formed on the semiconductor substrate, and has an opening. The tungsten film is embedded in the opening. The first barrier metal film is formed on the tungsten film and excludes a Ti film. The second barrier metal film is formed on the first barrier metal film and is a Ti-containing film. The metal wiring film is formed on the second barrier metal film.

Abstract: A method for forming a cup-shaped member, including a first pressing step of pressing a plate into a first cup-shaped intermediate molded body, and a second pressing step of pressing the first cup-shaped intermediate molded body into a second cup-shaped intermediate molded body having at least one annular bearing surface that extends perpendicular to an axial direction of the second cup-shaped intermediate molded body and are disposed on a radial-inward projection having an increased wall thickness. During the second pressing step, an outer circumferential periphery of the first cup-shaped intermediate molded body is ironed to facilitate plastic flow radially inwardly directed from the inner circumferential periphery thereof by restraining plastic flow directed toward an open end periphery and a bottom thereof.

Abstract: A blade structure of a torque converter, having a plurality of blades, is produced according to processes. The processes has (a) stamping a plane plate into a first shape, the first shape has (i) the plurality of circumferentially arranged blades, (ii) ring-shaped first connecting portions, each of which integrally couples the adjacent blades together at an outer circumference side of the blade structure, and (iii) ring-shaped second connecting portions, each of which integrally couples the adjacent blades together at an inner circumference side of the blade structure, (b) curving a surface of the stamped blade, (c) inclining the blade at a predetermined angle with respect to the first and second connecting portions while inclining the first and second connecting portions, and (d) adjusting a distance between the adjacent blades and shrinking the first shape in a radial direction by the inclination of the first and second connecting portions.

Abstract: A blade structure for a torque converter, produced by a process including the steps of: stamping a flat blank into a first annular plate that includes a first connecting ring portion, a second connecting ring portion, and a plurality of blades spaced from each other in a circumferential direction of the first and second connecting ring portions; bending the blades into a curved shape curved with respect to the first annular plate; bending the blades to be inclined by a predetermined angle with respect to the first and second connecting ring portions; and expanding the first annular plate outwardly in a radial direction thereof to thereby form a predetermined annular shape that has a larger radial dimension than the first annular shape and a larger circumferential distance between respective adjacent two of the blades than that in the first annular plate.

Abstract: A blade structure for a torque converter is produced as follows. A flat sheet is stamped into a shape including: a holding section; an inner connecting section located around the holding section, and held by the holding section; an outer connecting section located around the inner connecting section; and a plurality of blades connected between the inner connecting section and the outer connecting section. Then, the blades are bended into a curved shape between the inner connecting section and the outer connecting section. Then, the blades are angled by a predetermined angle with respect to the inner connecting section and the outer connecting section. Then, the holding section is displaced with respect to the inner connecting section perpendicularly of the sheet so as to shrink the sheet toward the holding section and shrink spaces between the blades. Then, the displaced holding section is removed from the sheet.

Abstract: A press forming method includes the following steps: (a) approaching an upper die to a lower die to form a space having a shape corresponding to at least one of concave and convex, the upper die having at least one of convex and concave, the lower die having at least one of concave and convex corresponding to at least one of convex and concave of the upper die; (b) forcing a workpiece disposed between the upper and lower dies, into the space so as to form at least one of preliminary concave and convex in the workpiece; (c) striking the upper die against the lower die so as to form at least one of concave and convex in the workpiece.

Abstract: A first connecting portion 16 that contacts an inner peripheral wall of an annular turbine shell 10 and connects blades 12, and a second connecting portion 14 that contacts the turbine shell 10 further toward an outside in a diametrical direction of the turbine shell 10 than the first connecting portion 16 and connects the blades 12 are provided, and a blade structure 11 in which the blades 12 are integrated by the first connecting portion 16 and the second connecting portion 14 is attached to the turbine shell 10.

Abstract: A semiconductor device includes a semiconductor substrate, an interlayer insulating film, a tungsten film, a first barrier metal film, a second barrier metal film and a metal wiring film. The interlayer insulating film is formed on the semiconductor substrate, and has an opening. The tungsten film is embedded in the opening. The first barrier metal film is formed on the tungsten film and excludes a Ti film. The second barrier metal film is formed on the first barrier metal film and is a Ti-containing film. The metal wiring film is formed on the secondbarrier metal film.

Abstract: A press forming method includes the following steps: (a) approaching an upper die to a lower die to form a space having a shape corresponding to at least one of concave and convex, the upper die having at least one of convex and concave, the lower die having at least one of concave and convex corresponding to at least one of convex and concave of the upper die; (b) forcing a workpiece disposed between the upper and lower dies, into the space so as to form at least one of preliminary concave and convex in the workpiece; (c) striking the upper die against the lower die so as to form at least one of concave and convex in the workpiece.

Abstract: A method for forming a cup-shaped member, including a first pressing step of pressing a plate into a first cup-shaped intermediate molded body, and a second pressing step of pressing the first cup-shaped intermediate molded body into a second cup-shaped intermediate molded body having at least one annular bearing surface that extends perpendicular to an axial direction of the second cup-shaped intermediate molded body and are disposed on a radial-inward projection having an increased wall thickness. During the second pressing step, an outer circumferential periphery of the first cup-shaped intermediate molded body is ironed to facilitate plastic flow radially inwardly directed from the inner circumferential periphery thereof by restraining plastic flow directed toward an open end periphery and a bottom thereof.