Kawasaki Jukogyo Kabushiki Kaisha

Chubu Electric Power Company, Inc.

Kawasaki Jukogyo Kaisha

Hideyuki Hirasawa

Hironori Okauchi

Kenji Tsubaki

Mamoru Nishio

Toshihiro Yamaoka

Takamasa Ogata

Katsumi Nagata

Hiroyuki Matsumura

Kouyu Itoga

Osamu Miki

Katsuhiro Onda

Takaaki Okumura

Yuji Sugita

Harutaka Koike

Hiroo Owaki

Sumihiro Ueda

Takaya Misumi

Masato Uchiyama

A determination assist system including a first image generating section for generating a first planar image based on data of a first test index; a second image generating section for generating a second planar image based on data of a second test index; a differentiation section which differentiates the first planar image and the second planar image to generate a first differential image and a second differential image, respectively; a binarization section which binarizes the first differential image to generate a first binary image including a first region which is not less than a first threshold and a second region which is less than the first threshold, and binarizes the second differential image to generate a second binary image including a third region which is not less than a second threshold and a fourth region which is less than the second threshold; and a determination image generating section.

Determination assist system of ultrasonic testing, determination assist method of ultrasonic testing, determination assist program of ultrasonic testing, and computer-readable storage medium for storing determination assist program of ultrasonic testing

This invention provides a method for inspecting a joined region and joining strength of a joined object formed by a spot friction stir joining process. In this method, an ultrasonic wave is introduced into the joined object from a backing faceopposed to a joining tool plunging faceand the ultrasonic wave reflected from the joined objectis taken in. In this case, the joining regionand the joining strength is estimated by observing a reflected wave of the ultrasonic wave in the vicinity of a position, along a reference direction Z, corresponding to an interfaceof two joining members, without using the reflected wave of the ultrasonic wave reflected from the joining tool plunging face, thereby inspecting the joined object based on the estimation result. Thus, influence of a concave/convex shape of a joining markformed in the joining tool plunging facecan be avoided, and the use of the ultrasonic wave for estimating the joined regioncan achieve an inspection of joining quality without destroying the joined object

Method and apparatus for inspecting joined object formed by friction stir joining

Ultrasonic defect testing method and apparatus

To improve the detection precision and detection efficiency and further to automatize the detection process, moisture in a honeycomb panel is detected as follows: the honeycomb panel is heated by a lamp; the surface temperature of the heated construction is measured by an infrared radiation thermometer; the measured temperature is displayed to roughly discriminate an abnormal portion (i.e., a portion containing moisture); the honeycomb panel is further heated continuously to detect temperature-change-rates at both abnormal and normal portions (i.e., a portion not containing moisture); and the two temperature-change-rates are compared with each other to discriminate a presence of moisture.

Method for detecting moisture in a honeycomb panel

Growing community of inventors

Kobe, Japan

Hideyuki Hirasawa