Mitsubishi Denki Kabushiki Kaisha

Osamu Hamada

Takeshi Morita

Seigo Hiramoto

Megumi Ohmine

Kenji Kawaguchi

Masaharu Moriyasu

Yukio Kato

Megumi Omine

Munehisa Sugimoto

Seigou Hiramoto

Kozo Yamada

A control apparatus for energy beam hardening which has an electromagnetic wave detector for detecting an electromagnetic wave irradiated from the surface of a hardened portion to which an energy beam is being emitted, a temperature converter for converting a detection signal from the electromagnetic wave detector to a temperature, hardening characteristics presuming means for presuming hardening characteristics by processing temperature distribution data from the temperature converter, energy beam deciding means for deciding the output and moving velocity of the energy beam emitted to obtain desired hardening characteristics and according to hardening characteristics to be presumed, and energy beam control means for controlling at least one of the output and moving velocity of the energy beam according to the output of the energy beam deciding means to thus suppress the irregularities in the hardening characteristics, thereby obtaining hardening characteristics of the hardened material as desired even if pretreating conditions and beam output of the material to be hardened are varied.

Control apparatus for energy beam hardening

A process for coating a workpiece with a ceramic material comprising the steps of axially advancing a cylindrical ceramic rod of a ceramic material relative to a workpiece while rotating it about its axis in a vacuum, to feed the ceramic rod into an energy beam for evaporation. The rate of feeding of the ceramic rod depends on the rate of deposition of the evaporated ceramic material on the workpiece.

Process for coating a workpiece with a ceramic material

A dome shaped ceramic vibration plate for an audio speaker is manufactured by vacuum evaporation and deposition using a laser beam. The vibration plate is formed as a thin ceramic film which adheres to the surface of a mother model, which is thereafter dissolved or fused away.

Method of manufacturing ceramic vibration plate for speaker

A process for preparing a press die comprises forming a metal overlaid on a base metal which is different in kind from the overlaid metal, and cutting the base metal together with overlaid metal into a predetermined shape.

Process for preparing a press die

Growing community of inventors

Amagasaki, Japan

Osamu Hamada