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Abstract

A cutting tool insert includes: a body defining a rake face, a flank face, and a cutting edge at an intersection of the rake and flank faces; and a cooling microduct within the body. The microduct has a cross-sectional area of not more than 1.0 square millimeter. The microduct is adapted to permit the flow of a coolant therethrough to transfer heat away from the cutting edge and extend the useful life of the insert. The microduct may have a portion with a cross-sectional area no larger than 0.004 square millimeter, and may communicate through at least one of the rake fact and the flank face to exhaust coolant near the cutting edge and further enhance cooling.

Patent Number

8,047,748

Assignee

Michigan Technological University, Houghton, MI (US)

Application Number

12/885,123

Date Filed

9-17-2010

Certificate of Correction

No

Issue Date

11-1-2011

Disciplines

Engineering | Mechanical Engineering

Cutting tool insert having internal microduct for coolant

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