Indexable Milling Cutter Cooling Layout for Full-Edge Insert Cooling
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Solution Overview
Problem
Existing milling tools often fail to efficiently cool the full length of cutting edges, leading to reduced tool life.
Innovation Solution
A milling tool design featuring multiple coolant outlets strategically positioned around the cutting insert to provide 360° cooling, with at least one first coolant outlet on the opposite side of the rake face and at least one second coolant outlet on the opposite side of the seating face, ensuring comprehensive cooling of the cutting edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one coolant outlet is used to direct coolant onto a corner of a cutting insert, then the device complexity is reduced, but the cooling effectiveness of the full length of cutting edges deteriorates
Solution Approach 1:
The single coolant outlet is segmented into multiple coolant outlets (first coolant outlet and second coolant outlet) positioned at different locations around the cutting insert. This segmentation allows coolant to be delivered to multiple distinct areas of the cutting edges simultaneously, ensuring comprehensive cooling coverage along the full length of the cutting edges rather than concentrating cooling at a single corner location.
Solution Approach 2:
Different coolant outlets are positioned to provide localized cooling to specific regions of the cutting insert. The first coolant outlet targets one set of cutting edges while the second coolant outlet targets another set, creating locally optimized cooling zones that address the specific thermal needs of each cutting edge region.
2Reliability
If multiple coolant outlets are added to cool the full length of cutting edges, then the cooling effectiveness is improved, but the device complexity increases
Solution Approach 1:
The multiple coolant outlets are integrated into a single indexing mechanism that can rotate to position different outlets as needed. This multi-functional design allows the same structural component to serve multiple cooling functions at different operational phases, reducing the need for separate dedicated cooling systems for each cutting edge location.
Solution Approach 2:
Multiple coolant delivery functions are merged into a unified outlet structure that can selectively position and activate different outlets. Rather than having completely independent cooling systems for each cutting edge, the outlets are combined into a coordinated system where multiple outlets share common mounting and control features, reducing overall structural complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The multi-outlet cooling system effectively prolongs the life of cutting inserts and milling tools by ensuring thorough coolant distribution along the entire length of the cutting edges.
Implementation Method 1
The cutting insert disposed within the pocket is cooled by flowing coolant out of the at least one first coolant outlet onto the cutting insert and by flowing the coolant out of the at least one second coolant outlet onto the cutting insert
Data Source
AI summary
A milling tool includes a rotatable tool body, a cutting insert, and first and second coolant outlets. The rotatable tool body is configured to rotate around an axis. The rotatable tool body includes a circumferential outer surface with a pocket defined therein. The pocket includes a seating surface. The cutting insert is disposed within the pocket. The cutting insert includes a seating face and a rake face opposed to the seating face. The seating face is disposed against the seating surface. The first coolant outlet is disposed in or attached to the rotatable tool body disposed on an opposite side of the rake face as the seating face. The second coolant outlet is disposed in or attached to the rotatable tool body disposed on an opposite side of the seating face as the rake face. The second coolant outlet is disposed outside of and adjacent to the seating face.