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US 6,318,219 B1Granted
Cutting method and cutting fluid
AssigneeTaiyu Co., Ltd.
InventorYasuo Kato
Life of this patent
Estimating the term…
Abstract
A cutting method in which a solution is sprayed or jetted to a machining portion when machining by use of a water-insoluble cutting oil, wherein recovered liquid is collected and stored in one recovery tank, and separated into the water-insoluble cutting oil and another solution on the basis of the specific gravity difference, and are re-used. Stable machining is enabled by using the water-insoluble cutting oil, and measures against disaster are fully taken.
Claims6
A cutting method, comprising the steps of:
- spraying or jetting a water solution on a periphery of a machining portion when machining with a water-insoluble cutting oil;
- recovering a liquid including a mixture of said water solution and said water-insoluble cutting oil after use of said liquid for machining;
- directing the liquid into a recovery tank for collection and storage;
- separating said water-insoluble cutting oil from said water solution on the basis of a difference in specific gravity;
- and,
- reusing said water solution and said water-insoluble cutting oil.
3 more elements
A cutting method, comprising the steps of:
- selectively using a water-insoluble cutting oil or a water-soluble cutting oil for machining;
- recovering a liquid including said water-insoluble cutting oil and said water-soluble cutting oil;
- directing said liquid into a recovery tank for storage;
- separating said liquid into said water-insoluble cutting oil and said water-soluble cutting oil on the basis of a difference in specific gravity;
- and,
- reusing said water-insoluble cutting oil and said water-soluble cutting oil.
3 more elements
A cutting method, comprising the steps of:
- using a water-insoluble cutting oil in a nonemulsified water solution for machining, where said water-insoluble cutting oil includes as a principal ingredient a mineral oil, or a liquid mixture containing chlorinated paraffin or polysulfide and a mineral oil;
- recovering said water-insoluble cutting oil after use;
- and,
- maintaining said recovered water-insoluble cutting oil in a condition containing 4-20% water.
1 more element
Dependencies are inferred from the claim text.