Shim for a cutting insert and cutting insert-shim assembly with internal coolant delivery

US8439608B2 · kind B2 · utility

Assignee

• KENNAMETAL INC. · US

Inventors

• Shi Chen · Huntingdon, US
• Nicholas J. Henry · Latrobe, US
• Charles Lisle Conway · Ligonier, US
• Kent P. Mizgalski · Stahlstown, US
• Joseph V. Nelson · Greensburg, US
• Linn R. Andras · Latrobe, US
• Thomas Muller · Greensburg, US
• Paul D. Prichard · Muskegon, US
• Brad Daniel Hoffer · Connellsville, US

Key dates

• Filing date: Sep 1, 2010
• Grant date: May 14, 2013
• Expiry date: Sep 26, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T408/44
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A cutting insert-shim assembly that has a cutting insert with a bottom surface and a plurality of interior coolant passages wherein each interior coolant passage has a coolant inlet in the bottom surface of the cutting insert. The shim has a first side surface and a second side surface and contains a cavity, which communicates with the coolant conduit. The cavity defines a first opening in the first side surface and a second opening in the second side surface. When the shim is in a first condition, the first side surface contacts the bottom surface of the cutting insert and the first opening provides a first level of coolant communication to the interior coolant passages in the cutting insert. When the shim is in a second condition, the second side surface contacts the bottom surface of the cutting insert and the second opening provides a second level of coolant communication to the interior coolant passages in the cutting insert.