Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Tokuji Okumura

Taisei Wakisaka

Takanori Suzuki

Masahito Mutou

Kazushiro Wakabayashi

Hisashi Masuda

Yutaka Ebato

Mitsutaka Igaue

Masahiko Nakayama

Hiroyasu Taniguchi

Taiji Mizuta

Kazuo Isogai

Yasunari Mizuta

Shinya Oyama

Shinji Saeki

Yoshiaki Ito

Tsuneo Otake

Hideshi Takekuma

Provided is a method for producing a zinc alloy capable of obtaining a Zn&#x2014;Si alloy having a uniform composition. Metal Zn is melted in a crucible () provided in a heating furnace () to obtain a Zn molten metal (). Floating of a metal Si powder () added to the Zn molten metal () is suppressed by a floating suppressing member (). Heating is performed while a liquid surface of the Zn molten metal () is coated with a carbonaceous material (), thereby melting the metal Si powder (). The suppression of the floating of the metal Si powder () is released to allow the melted Si to be dispersed in the Zn molten metal (), thereby obtaining a Zn&#x2014;Si alloy molten metal (). A copper casting mold () is filled with the Zn&#x2014;Si alloy molten metal (), and is rapidly cooled down to obtain a billet.

Method for producing zinc alloy

Provided is an arc welding method and arc welding apparatus for arc welding by a brazing filler metal two base materials subjected to a plating process. An arc welding method for arc welding two base materials, at least one of which has a plating layer thereon, by a brazing filler material, performs alternately a plating layer removal process of removing a plating layer by performing arc discharge at a first current value while moving a welding torch along a welding line in a state of stopping feed of the brazing filler metal, and a brazing filler metal welding process of welding the brazing filler metal to a position where the plating layer is removed, by performing arc discharge at a second current value smaller than the first current value while feeding the brazing filler metal in a state of stopping a movement of the welding torch.

Arc welding method and arc welding apparatus

In joining an Fe-based metallic member comprising an Fe-based material and an Al-based metallic member comprising an Al-based material by a Zn-based filler metal, a joined part of the Fe-based metallic member is heated at a temperature higher than a melting point of the Fe-based material.

Laser welding Al and Fe members with Zn filler

A front face distance is obtained by measuring the position of a front face of an instrument panel held by an end effecter of a robot. An error on an optical axis, at the position of the front face is obtained based on the front face distance. Based on the error, the position of the instrument panel is adjusted so that a focal point of a laser meets the position at a predetermined depth defined with the front face as the standard. A back face of the instrument panel is irradiated with a laser to form a fine hole of a fragile section.

Interior material and laser beam processing method for the same

Assuming that t represents a period of time until a detection signal is outputted after a sensor senses a laser beam passed through a through-hole of a workpiece, t represents a period of time until the detection signal derived from the sensor exceeds a preset threshold value, and t represents a period of time until radiation of the laser beam is actually stopped after the threshold value is exceeded, a total period of time (t t t ) of the periods of time t to t is set to be shorter than a time difference (T &minus;T ) between a pulse width (T ) and one cycle (T ) of a pulse signal for constructing a laser output command signal.

Perforating machining method with laser beam

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Tochigi, Japan

Tokuji Okumura