Sintokogio, Ltd.

The University of Tokyo

The Foundation for the Promotion of Industrial Science

Nagoya Institute of Technology

Shibaura Institute of Technology

Eiji Yamaguchi

Nayuta Horie

Yusuke Kajihara

Fuminobu Kimura

Yuuka Ito

Norihito Shibuya

Takehiko Matsumoto

Yuta Tamura

Junichi Iwasaki

Kazuharu Matsui

Takahiro Ishizaki

Osamu Eryu

Gota Suzuki

Naotake Nakura

Mizuki Okubo

Ai Serizawa

A method of manufacturing a composite member including an aluminum member and a resin member that are bonded to each other, the method including: performing blasting on a surface of the aluminum member; modifying the surface of the aluminum member into aluminum hydroxide, the modifying including causing the surface of the aluminum member having undergone blasting to react with water vapor by applying a pressure exceeding an atmospheric pressure; and directly bonding the resin member to the surface of the aluminum member modified to aluminum hydroxide.

Method of manufacturing composite member and the composite member

An ultrasonic inspection apparatus includes: an acquisition unit acquiring a signal indicating a fundamental wave and a second harmonic of an ultrasonic wave, which are obtained by the ultrasonic wave being scanned over an inspection object through a medium, at each scanning position; a calculation unit calculating a value obtained by dividing a second harmonic amplitude by a square of a fundamental wave amplitude, at each scanning position; and an output unit outputting information on a defect of the inspection object, based on the value obtained by dividing the second harmonic amplitude by the square of the fundamental wave amplitude.

Ultrasonic inspection apparatus and ultrasonic inspection method

A method of manufacturing a composite member including an aluminum member and a resin member bonded to each other, the method including: performing blasting on a surface of the aluminum member; modifying the surface of the aluminum member into aluminum hydroxide, the modifying including causing the surface of the aluminum member having undergone blasting to react with water by using at least one of heat and plasma; and directly bonding the resin member to the surface of the aluminum member modified to the aluminum hydroxide.

Provided is a method for producing a composite member formed by bonding a base material and a resin member. The method includes: a surface treatment step of forming micro-order or nano-order asperities on a surface of a base material; and a bonding step of directly bonding, by injection molding, a resin member to the surface of the base material that has the asperities formed in the surface treatment step. In addition, the composite member includes: a base material having micro-order or nano-order asperities on a surface thereof; and a resin member that is in direct contact with the surface of the base material.

Production method for composite member

A metallic abrasive pad for use in a smoothing operation applied to a worked surface of a workpiece by a catalyst-supported chemical machining method, the metallic abrasive pad including a compression-formed compact of one or more metal fibers made of a transition-metal catalyst, wherein a contact spot of the one or more metal fibers intersecting each other is sintered, the one or more metal fibers are fixed to each other, and the metallic abrasive pad has a prescribed void ratio.

Metallic abrasive pad and method for manufacturing same

Measuring the degree of restoration during the restoring treatment of the used molding sand and comparing the measured degree of restoration to a permissible degree, comprising the following steps: First, the restored sand is photographed to project it as a picture on a monitor. A picture-processing device divides that picture into a certain number of picture parts and the brightness of each picture part is compared to the standard brightness, which is chosen beforehand. The degree of restoration is judged based on the number of picture parts that are lighter or darker than the standard brightness. The restoring treatment is stopped when the result of the comparison shows that the restoration has reached the permissible degree, but is continued when the result does not reach it. The operation of measuring the degree of restoration during the treatment is also repeated until it reaches the permissible degree. Then the treatment is stopped.

Method of restoring used molding sand

Growing community of inventors

Toyokawa, Japan

Eiji Yamaguchi