Loading patent…
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsAkihiro Goto, Masao Akiyoshi, Katsuhiro Matsuo, Hiroyuki Ochiai, Mitsutoshi Watanabe, Takashi Furukawa
Estimating the term…
To form a thick coating by a discharge surface treatment, a voltage between an electrode and a workpiece during a discharge is detected, and it is determined that a discharge surface treatment state is abnormal if it is detected that the voltage is reduced. With this arrangement, it is possible to accurately detect an unstable phenomenon in the discharge surface treatment, and take appropriate measures before a state of the coating and a state of the electrode are worsened due to the unstable phenomenon. By discriminating a stability of the discharge surface treatment, the coating and the electrode are prevented from being damaged.
-6. (canceled)
A discharge surface treatment method for generating a pulse-like discharge between an electrode and a workpiece, using a green compact formed by compressing any one of a metal powder, a metal compound powder, and a ceramics powder as the electrode, and forming a coating consisting either one of a material for the electrode and a material obtained from a reaction of the material for the electrode by a discharge energy of the pulse-like discharge on a surface of the workpiece, the discharge surface treatment method comprising:
A discharge surface treatment method for generating a pulse-like discharge between an electrode and a workpiece, using a green compact formed by compressing any one of a metal powder, a metal compound powder, and a ceramics powder as the electrode, and forming a coating consisting either one of a material for the electrode and a material obtained from a reaction of the material for the electrode by a discharge energy of the pulse-like discharge on a surface of the workpiece, the discharge surface treatment method comprising:
A discharge surface treatment apparatus for generating a pulse-like discharge between an electrode and a workpiece, using a green compact formed by compressing any one of a metal powder, a metal compound powder, and a ceramics powder as the electrode, and forming a coating consisting either one of a material for the electrode and a material obtained from a reaction of the material for the electrode by a discharge energy of the pulse-like discharge on a surface of the workpiece, the discharge surface treatment apparatus comprising:
A discharge surface treatment apparatus for generating a pulse-like discharge between an electrode and a workpiece, using a green compact formed by compressing any one of a metal powder, a metal compound powder, and a ceramics powder as the electrode, and forming a coating consisting either one of a material for the electrode and a material obtained from a reaction of the material for the electrode by a discharge energy of the pulse-like discharge on a surface of the workpiece, the discharge surface treatment apparatus comprising:
Dependencies are inferred from the claim text.