Method and apparatus for cutting rare earth alloy
AssigneeSumitomo Special Metals Co., Ltd.
InventorsHazime Ishida, Sadahiko Kondo, Akira Miyachi
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Abstract
A method for cutting a rare earth alloy of the invention using a wire having abrasive grains stuck thereon is disclosed. The method includes the step of cutting the rare earth alloy while supplying a cutting fluid having a predetermined kinematic viscosity between the wire and the rare earth alloy. The method further includes the step of varying the temperature of a supplied amount of fresh cutting fluid in order to control the kinematic viscosity of the cutting fluid.
Claims23
A method for cutting a rare earth alloy comprising the step of:
- providing a cutting wire having abrasive grains stuck thereon;
- and
- cutting the rare earth alloy while supplying a cutting fluid having a predetermined kinematic viscosity in a range of 6.0 mm2/s to 100.0 mm2/s between the wire and the rare earth alloy.
A method for manufacturing rare earth alloy plates, comprising the steps of:
- producing an ingot of a rare earth alloy;
- and
- cutting one or more rare earth alloy plates from the ingot by a method comprising the step of:
- providing a cutting wire having abrasive grains stuck thereon;
- and
- cutting the rare earth alloy while supplying a cutting fluid having a predetermined kinematic viscosity in a range of 6.0 mm2/s to 100.0 mm2/s between the wire and the rare earth alloy.
A method for manufacturing rare earth magnets, comprising the steps of:
- producing a sintered body from rare earth magnetic alloy powder;
- and
- cutting one or more rare earth magnets from the sintered body by a method comprising the step of:
- providing a cutting wire having abrasive grains stuck thereon;
- and
- cutting the rare earth alloy while supplying a cutting fluid having a predetermined kinematic viscosity in a range of 6.0 mm2/s to 100.0 mm2/s between the wire and the rare earth alloy.
A voice coil motor comprising a rare earth magnet manufactured by a method comprising the steps of
- producing a sintered body from rare earth magnetic alloy powder;
- and
- cutting one or more rare earth magnets from the sintered body by a method comprising the step of:
- providing a cutting wire having abrasive grains stuck thereon;
- and
- cutting the rare earth alloy while supplying a cutting fluid having a predetermined kinematic viscosity in a range of 6.0 mm2/s to 100.0 mm2/s between the wire and the rare earth alloy.
An apparatus for cutting a rare earth alloy with a wire, comprising:
- a wire having abrasive grains'stuck thereon;
- means for supplying a cutting fluid having a predetermined kinematic viscosity in a range of 6.0 mm2/s to 100.0 mm2/s between the wire and the rare earth alloy;
- and
- viscosity control means for controlling the kinematic viscosity of said cutting fluid supplied, between said wire and the rare earth alloy by controlling the temperature of said cutting fluid.
An apparatus for cutting a rare earth alloy with a wire, comprising:
- a wire having abrasive grains stuck thereon;
- means for supplying a cutting fluid having a predetermined kinematic viscosity in a range of 6.0 mm2/s to 100.0 mm2/s between the wire and the rare earth alloy;
- and
- a magnetic separator for separating sludge of the rare earth alloy generated during the cutting of the rare earth alloy from said cutting fluid.
Dependencies are inferred from the claim text.