Method of machining rare earth alloy and method of fabricating rare earth magnet using the same
AssigneeSumitomo Special Metals Co., Ltd.
InventorSadahiko Kondo
Life of this patent
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Abstract
The invention provides a method of machining a rare earth alloy at high machining preciseness and high efficiency. In a step of grinding a block of a rare earth alloy with a grinding wheel having, on a peripheral portion thereof, a grinding edge including diamond abrasive particles, a coolant with surface tension of 25 mN/m through 60 mN/m is supplied to the grinding edge with the grinding wheel rotated.
Claims42
A method of machining a rare earth alloy comprising the steps of:
- providing a block of the rare earth alloy;
- rotatably supporting a grinding wheel having, on a peripheral portion thereof, a grinding edge including diamond brasive particles;
- and
- grinding the block of the rare earth alloy by bringing the grinding edge into contact with the block, with the grinding wheel rotated and with a coolant having surface tension of 25 mN/m through 60 mN/m supplied to the grinding edge of the grinding wheel.
A method of machining a rare earth alloy comprising the steps of:
- providing a block of the rare earth alloy;
- rotatably supporting a grinding wheel having, on a peripheral portion thereof, a grinding edge including diamond abrasive particles;
- and
- grinding the block of the rare earth alloy by bringing the grinding edge into contact with the block, with the grinding wheel rotated and with a coolant having a coefficient of dynamic friction against the rare earth alloy of 0.1 through 0.3 supplied to the grinding edge of the grinding wheel.
A method of fabricating a rare earth magnet comprising the steps of:
- providing a block of the rare earth alloy;
- rotatably supporting a grinding wheel having, on a peripheral portion thereof, a grinding edge including diamond abrasive particles;
- grinding the block of the rare earth alloy by bringing the grinding edge into contact with the block, with the grinding wheel rotated, with a coolant having surface tension of 25 mN/m through 60 mN/m supplied to the grinding edge of the grinding wheel, and with the grinding wheel moved relatively to the block, whereby the block is cut into pieces;
- and
- magnetizing the rare earth alloy.
A method of machining a rare earth alloy comprising the steps of:
- providing a block of the rare earth alloy;
- establishing a cutting motion with a grinding part including diamond abrasive particles on its periphery facing the block,
- cutting the block of the rare earth alloy by bringing the grinding part into contact with the block, with the grinding part being moved and with a coolant having surface tension of 25 mN/m through through 60 mN/m supplied to the grinding part.
A method of machining a rare earth alloy comprising the steps of:
- providing a block of the rare earth alloy;
- establishing a cutting motion with a grinding part including diamond abrasive particles on its periphery facing the block,
- cutting the block of the rare earth alloy by bringing the grinding part into contact with the block, with the grinding part being moved and with a coolant having a coefficient of dynamic friction against the rare earth alloy of 0.1 through 0.3 supplied to the grinding part.
A method of machining a rare earth alloy comprising the steps of:
- providing a block of the rare earth alloy;
- establishing a cutting motion with a grinding part including diamond abrasive particles on its periphery facing the block,
- cutting the block of the rare earth alloy by bringing the grinding part into contact with the block, with the grinding part being moved and with a coolant having a coefficient of dynamic friction against the rare earth alloy of 0.1 through 0.3 supplied to the grinding part.
A method of fabricating a rare earth magnet comprising the steps of:
- providing a block of the rare earth alloy;
- establishing a cutting motion with a grinding part including diamond abrasive particles on its periphery facing the block,
- cutting the block of the rare earth alloy by bringing the grinding part into contact with the block, with the grinding part being moved, with a coolant having surface tension of 25 mN/m through 60 mN/m supplied to the grinding part, and with the grinding part moved relatively to the block, whereby the block is cut into pieces;
- and
- magnetizing the rare earth alloy.
Dependencies are inferred from the claim text.