Apparatus and method for cooling a cutting tool using super critical carbon dioxide
AssigneeKennametal Inc.
InventorsJohn C. Musil, Christopher Bukvic
Life of this patent
Estimating the term…
Abstract
A toolholder includes a pocket assembly having a nest section and a clamp section. An inverted nest is mounted in the nest section and includes an insert-receiving pocket for accommodating a cutting insert mounted therein. A clamping wedge is mounted in the clamp section in such a way that the cutting insert engages the clamping wedge. The inverted nest includes one or more coolant grooves that cooperate with the cutting insert for directing super critical carbon dioxide to a cutting tool/workpiece interface.
Claims17
A toolholder, comprising:
- a pocket assembly having a nest section and a clamp section;
- an inverted nest mounted in the nest section, the inverted nest including an insert-receiving pocket for accommodating a cutting insert mounted therein;
- and
- a clamping wedge mounted in the clamp section in such a way that the cutting insert engages the clamping wedge,
- wherein the inverted nest includes one or more coolant grooves that cooperate with the cutting insert for directing super critical carbon dioxide to a cutting tool/workpiece interface.
An inverted nest for a toolholder, comprising:
- a top surface, a bottom surface opposite the top surface and a plurality of side surfaces;
- and
- a forward nose portion with an insert-receiving pocket for accommodating a cutting insert mounted therein, the insert-receiving pocket including a pair of side walls and a top wall to provide three-point contact between the cutting insert and the insert-receiving pocket when the cutting insert is mounted therein,
- wherein the top wall of the insert-receiving pocket of the inverted nest includes one or more coolant grooves that cooperate with the cutting insert for directing super critical carbon dioxide to a cutting tool/workpiece interface.
A method for directing super critical carbon dioxide to a cutting insert/workpiece interface of a toolholder, the method comprising the step of:
- mounting an inverted nest in a nest section of a pocket assembly of a toolholder, the inverted nest including an insert-receiving pocket for accommodating a cutting insert mounted therein;
- and;
- mounting a clamping wedge in a clamp section of the pocket assembly of the toolholder in such a way that the cutting insert engages the clamping wedge,
- wherein the inverted nest includes one or more coolant grooves that cooperate with the cutting insert for directing super critical carbon dioxide to a cutting tool/workpiece interface.
Dependencies are inferred from the claim text.