Hybrid Cutting Tool Coolant Channels for Turbulent Edge Cooling
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Solution Overview
Problem
Conventional cutting tools have suboptimal cooling systems due to fixed, straight coolant channels that do not reliably dissipate thermal energy effectively, limiting their performance and adaptability to machining tasks.
Innovation Solution
The cutting tool features an additively manufactured tubular coolant channel with a structurally bionic design, including arc-shaped windings and off-center branching, which promotes turbulent coolant flow and precise atomization, ensuring efficient heat dissipation and optimal cooling of the cutting surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional straight coolant channels are used, then manufacturing is simple, but cooling efficiency is insufficient
Solution Approach 1:
The patent applies curved, arc-shaped coolant channels instead of straight channels. The curved geometry follows the natural flow paths and thermal gradients in the cutting tool, improving coolant distribution and heat dissipation efficiency while maintaining manufacturability through standard drilling and routing processes.
Solution Approach 2:
The patent implements varying channel diameters and configurations at different locations within the cutting tool. Coolant channels are strategically positioned and sized to match local heat generation zones, with larger channels near high-heat areas and smaller channels in cooler regions, optimizing cooling efficiency throughout the tool structure.
2Reliability
If additively manufactured tubular coolant channels with coils are used, then cooling efficiency is enhanced, but manufacturing complexity increases
Solution Approach 1:
The patent employs coiled and tubular coolant channel geometries that follow curved paths through the cutting tool body. These complex three-dimensional paths maximize coolant exposure to heat-generating surfaces while maintaining efficient flow, achieving superior cooling efficiency through additive manufacturing capabilities.
Solution Approach 2:
The patent implements nested coolant channels where smaller channels are positioned within or alongside larger channels, creating a multi-level cooling system. This nested configuration allows efficient coolant distribution throughout the tool structure while optimizing space utilization and heat dissipation pathways.
3Ease of manufacture
If round bore outlet openings are used, then manufacturing is straightforward, but coolant alignment to cutting surface is suboptimal
Solution Approach 1:
The patent features outlet openings with varying shapes (oval, slot, or custom geometries) specifically designed to match the orientation and requirements of individual cutting surfaces. Each outlet opening's shape and direction are optimized for its specific location, enabling precise coolant alignment with the cutting edge for maximum cooling effectiveness.
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
This design enhances cooling efficiency, extends tool durability, and allows for individual adaptation to machining tasks, providing reliable performance and extended tool life by ensuring precise coolant delivery to cutting edges.
Implementation Method 1
The tubular structure with coils promotes a separation-free and turbulent flow of the coolant
Implementation Method 2
the generated heat is dissipated. In cutting tools, this is preferably done by means of fluids that are channeled through a coolant channel and applied to the cutting edge
Data Source
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AI summary
The invention relates to a rotating, cutting tool (1) with a conventionally manufactured holder (2) and an additively manufactured main body (3). The main body (3) has at least one cutting plane (4) with at least one cutting insert (5) and at least one coolant channel (6). The coolant channel (6) has an additively manufactured, tubular structure.