Yorozu Corporation

Ahresty Corporation

Yasushi Kanno

Shunzo Aoyama

Masaharu Matsumoto

Keiji Nakahara

Emi Yanagihara

Sadahiro Sekine

A projection of burr is provided by forming an appropriate gap to set a cast-in member to a cast-in mold, completely closing the gap when the cast-in mold is clamped, and correcting cast-in positioning (axis mating) to a die-cast component by a clamping operation of the die-cast mold, regardless of a dimensional precision of the cast-in member upon a manufacture. Steel plate cast-in member, wrapped cast except for a bonding portionto a steel plate bonding memberupon molding a die-cast component, has a mold contact portionat a boundary between a cast-in portionwrapped cast with a die-cast componentand the bonding portion. When a cast-in mold A is clamped, the mold contact portionis brought into butting contact with the cast-in mold A, gap S between the cast-in memberand the cast-in mold A, cavity a, is closed.

Cast-in structure and cast-in mold for vehicle component

A welding method of carrying out an alternating current arc welding by switching polarities of a voltage applied between a wire and workpieces when weld-connecting the workpieces to each other by use of the wire, the workpieces including an aluminum cast material and an aluminum wrought material. In the welding method, the alternating current arc welding is carried out in a way to satisfy|/(|)&#x2267;0.128where A denotes an integrated value of an electric current over a time for which the polarity of the wire is positive, and B denotes an integrated value of an electric current over a time for which the polarity of the wire is negative; and thereby an amount of heat input into the aluminum cast material during the welding is set at not more than 67.8 J/mm.

Welding article and welding method of carrying out an alternating current arc welding

Growing community of inventors

Toyohashi, Japan

Yasushi Kanno