B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
29/2
B23B 27/10 (2006.01) B23Q 11/10 (2006.01)
Patent
CA 1255888
METHOD AND APPARATUS FOR MACHINING Abstract of the Disclosure A method and apparatus for machining a workpiece such with an insert having a surface termi- nating with a cutting edge includes a tool holder adapted to mount the insert, which is formed with coolant delivery passageways terminating in a dis- charge orifice lying atop the exposed surface of the insert for ejecting high velocity coolant across the insert and beneath the chips formed from the work- piece. The discharge orifice of the tool holder is spaced within a critical range from the cutting edge of the insert clamped therein. The coolant is ejected from the discharge orifice at a velocity within a critical range and the tool holder is advanced in the cut at a feed rate within a critical range in prac- ticing the method of this invention. Combination of discharge orifice spacing, coolant velocity and feed rate within the critical ranges results in improved chip control and tool life regardless of the type of material, depth of cut and speed of machining opera- tions such as turning, boring, milling, threading, grooving and shaping.
513131
Macrae & Co.
Yankoff Gerald K.
LandOfFree
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