Method for producing stator for motors, and stator for motors
AssigneeSeiko Instruments Inc.
InventorsKosuke YAMAMOTO, Shinji KINOSHITA
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Abstract
Provided herein is a method for producing a stator for motors, and a stator for motors with which heat deformation due to laser irradiation at the time of forming a non-magnetic region can be reduced. A method for producing a stator for motors includes an unmagnetizing step of forming a non-magnetic region in a magnetic sheet material, and a working step of working a part of the non-magnetic region in the magnetic sheet material so as to form a hole for a rotor of a motor.
Claims11
A method for producing a stator for motors, the method comprising:
- an unmagnetizing step of forming a non-magnetic region in a magnetic sheet material;
- and
- a working step of working a part of the non-magnetic region in the magnetic sheet material so as to form a hole for a rotor of a motor.
A stator for motors, comprising a non-magnetic molten region formed at a circumference of a rotor hole of a magnetic sheet material by melting and unmagnetizing the magnetic sheet material, the non-magnetic molten region having a cross section that becomes smaller from a first surface of the magnetic sheet material toward a second surface of the magnetic sheet material in thickness direction.
Dependencies are inferred from the claim text.