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

Claim 9:
10. A method of producing laser processing cooling water, the method comprising:
providing a laser processing head,
providing a cooling water tank for storing cooling water that is a mixture of water and antirust, connecting, to the cooling water tank, a water supply path for supplying water and an antirust supply path for supplying the antirust,
providing a discharge tank,
mixing the water supplied from the water supply path and the antirust supplied from the antirust supply path to produce the cooling water,
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 the conductivity of the cooling water before supplying the cooling water to the laser processing head,
adjusting a supply quantity of the water and/or of the antirust to maintain the conductivity within a preset range,
in a state where the conductivity of the cooling water is within the 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.