| 摘要 |
PROBLEM TO BE SOLVED: To form a flow passage so as not to be rusted and corroded even if using a fluid such as a water-soluble liquid or the like which is low in viscosity as a fluid for lubrication or cooling in a machine tool, and also even if a flow passage forming base region which forms the flow passage is a metal-made region.SOLUTION: In a flow passage forming method for lubrication or cooling in a machine tool in which a block body 16 of the machine tool is a metal-made body, and a flow passage 14 is formed at the block 16, the flow passage forming method comprises: a resin filling hole forming process for forming a larger-diameter resin filling hole 18 which is larger in diameter than a desired flow passage diameter at the block 16; a resin forming body forming process for integrally forming a resin forming body 20 by filling a molten resin into the resin filling hole 18 and curing it; and a flow passage forming process for drilling and forming the flow passage 14 having the desired flow passage diameter at the resin forming body 20. |
