Gear cutting – milling – or planing – Milling – Process
Reexamination Certificate
2007-04-03
2010-10-19
Cadugan, Erica E (Department: 3726)
Gear cutting, milling, or planing
Milling
Process
C409S234000, C409S141000, C408S238000, C408S143000, C029S446000
Reexamination Certificate
active
07815403
ABSTRACT:
An exemplary embodiment of a material removal tool has a housing at a mating end, an extension longitudinally extending from the housing to a distal end, a plurality of spacers arranged along the extension, and a nut at the distal end of the extension, wherein the plurality of spacers are formed from a material having a Young's modulus of greater than about 1.5 times that of steel. The spacers along the extension of the tool place the stiffer material of the spacer at a location of greatest resistance to bending moments (i.e. highest sectional modulus). Optionally preloading and “built-in” relief points contribute to improved performance of the material removal tool. A method of manufacturing a material removal tool and a method of machining a workpiece are also disclosed.
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Printout from www.itia.info, article titled “Cemented Carbides”, printed May 25, 2010.
Printout from www.matweb.com re the properties of alumina (Al2O3), printed Jun. 2010.
Printout from www.matweb.com re the property search for materials with a modulus of elasticity within a particular range, printed Jun. 2010.
Machine translation of JP-2005-329509, which JP '509 was published in Dec. 2005.
Azzopardi Don
Hoefler Brian
Cadugan Erica E
Drinker Biddle & Reath LLP
Valenite LLC
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