| 摘要 |
<p>A method and apparatus for performing machining operations on a workpiece such as cutting, boring turning and milling is accomplished at reduced power levels with increased tool life and efficiency. The apparatus includes a tool holder (10) formed with at least one release orifice (32) in which a cutting insert (18) is mounted having a surface (17) terminating with a cutting edge (19). The cutting edge (19) of the insert (18) is adapted to engage the workpiece (12) to form chips (42) which overlie the surface (17) of the cutting insert (18) and the release orifice (32) in the holder (10). A coolant delivery system including a pump (30) is adapted to eject a coolant jet (38) from the release orifice (32) at high velocity and high pressure between the surface (17) of the cutting insert (18) and the chips (42), from a location beneath the chips (42). </p> |
