IP Library Granted Patent US 12691525
Granted Patent B2
US 12691525 · App. 17/964,861 · Granted Jul 28, 2026

Machining fluid and machining device using the same

Inventors: Chia-Lung Kuo (Yunlin, TW); Yuan-Jen Chang (Yunlin, TW); Zong-Lun Wu (Yunlin, TW)
Assignee: National Yunlin University of Science and Technology
B23K26/146B23K26/1464
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Quick Facts
Patent No.
US 12691525
App. No.
17/964,861
Granted
Jul 28, 2026
Kind
B2
Abstract

The present invention provides a machining fluid comprising a first phase fluid and a second phase fluid pressurized to be dissolved in the first phase fluid. The present invention further provides a machining device comprising an injecting head having a nozzle and a flow channel communicating with the nozzle for guiding the machining fluid to the nozzle injecting the machining fluid to an object. Alternatively, the present invention further provides a machining device comprising a light source for generating a laser beam and an injecting head having a nozzle and a flow channel communicating with the nozzle. The flow channel guides a machining fluid having a first phase fluid and a second phase fluid such that the machining fluid is injected to an object by the nozzle. The injecting head also receives the laser beam and guides the laser beam to the object through the nozzle.

Claims (20)

1 . A machining device, comprising:

an injection head, comprising a nozzle, and a flow channel formed inside the injection head and communicated with the nozzle, wherein the flow channel is utilized to guide a machining fluid to the nozzle and the nozzle injected the machining fluid to a work piece, wherein machining fluid further comprises:

a first phase fluid, which is a liquid solvent; and

a second phase fluid, which is a gas that is dissolved in the first phase fluid through a high pressure such that the second phase fluid is supersaturated dissolved in the first phase fluid; and

a high pressure pump comprising a pump body, a first inlet, a second inlet, and an exhausting outlet communicated with the injection head, wherein the first inlet is utilized to guide the first phase fluid flowing into the pump body, the second inlet is utilized to guide the gas flowing into the pump body for forming the pressurized second phase fluid dissolving into the first phase fluid thereby forming the machining fluid exhausting out of the exhausting outlet.

2 . The machining device of claim 1 , wherein the gas is air, flammable gas, combustion gas, or a combination of the flammable gas and combustion gas.

3 . The machining device of claim 1 , wherein the machining fluid further comprises a plurality of micro bubbles wherein each micro bubble is formed by a flammable gas, combustion gas, or a combination of flammable gas and combustion gas.

4 . The machining device of claim 2 wherein the combustion gas is hydrogen, and the flammable gas is hydrogen or hydrocarbon gas.

5 . The machining device of claim 1 , wherein the first phase fluid is water or oil.

6 . The machining device of claim 1 , wherein the second inlet further connects to an electrolysis device for providing the gas generated by the electrolysis reaction to the high pressure pump.

7 . The machining device of claim 1 , wherein the gas is pressurized by a high pressure ranged between 0.3 MPa~80 MPa.

8 . A machining device, comprising:

an optical device, configured to generate a laser light; and

an injection head, configured to comprise a nozzle and a flow channel communicated with the nozzle for guiding a machining liquid which is injected to a work piecework piece through the nozzle, and to receive the laser beam projected to the work piece through the nozzle wherein the machining fluid further comprises a first phase fluid and a second phase fluid, wherein the first phase fluid is a liquid solvent, and the second phase fluid is a gas that is dissolved in the first phase fluid through a high pressure such that the second phase fluid is supersaturated dissolved in the first phase fluid; and

a machining fluid supplying device comprising a liquid supplying source, a high pressure pump, and an electrolysis device, wherein the high pressure pump is connected to the liquid supplying source through a pipeline for drawing a reaction liquid stored in the liquid supplying source, and pressurizing the reaction liquid, the electrolysis device is connected to the high pressure pump through the pipeline for receiving the reaction liquid and generating the gas through an electrolysis reaction wherein the gas is pressurized to be dissolve into the reaction liquid flowing in the pipeline for forming the machining fluid.

9 . The machining device according to the claim 8 , wherein the machining fluid further comprising a plurality micro bubbles, the first phase fluid is liquid while the second phase fluid is gas, wherein a volume fraction of the first phase fluid is ranged between 90~99%, while a volume fraction of the second phase fluid is ranged between 1~10%.

10 . The machining device of claim 8 , wherein the gas is combustion gas, flammable gas, or a combination of the combustion gas and the flammable gas.

11 . The machining device of claim 8 , wherein the injection head further comprises a first flow channel communicated with the flow channel for providing a first auxiliary fluid flowing into the flow channel and being mixed with the machining fluid, wherein the first auxiliary fluid comprises a plurality grinding particles.

12 . The machining device of claim 8 , wherein the injection head further comprises a second flow channel communicated with the flow channel for guiding a second auxiliary fluid flowing into the flow channel.

13 . The machining device of claim 8 , wherein the gas is pressurized by a high pressure ranged between 0.3 MPa~80 MPa.