Patent ID: 11878370
Assignee: AMADA CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. A method of producing laser processing cooling water, the method comprising:
providing a laser processing head,
connecting a mixed water supply path to a cooling water tank for storing cooling water that is a mixture of water and antirust,
providing a discharge tank,
connecting, to the mixed water supply path, a water supply path for supplying the water and an antirust supply path for supplying the antirust,
providing a changeover valve that selectively opens and closes the cooling water supply path,
operating the changeover valve to discharge the cooling water to the discharge tank and detecting a conductivity of the cooling water before supplying the cooling water to the laser processing head,
substantially keeping constant a ratio between a water quantity supplied from the water supply path and an antirust quantity supplied from the antirust supply path,
mixing the water and antirust in the mixed water supply path,
storing the mixed cooling water in the cooling water tank,
in a state where the conductivity of the cooling water is within a preset range, operating the changeover valve to supply the cooling water to the laser processing head,
and
providing a feed capacity of the antirust to be smaller than a feed capacity of the water.