Cutting Tool Coolant Channels Without Insert Alignment Errors
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Solution Overview
Problem
Existing machining tools require complex and cost-intensive manufacturing processes for coolant channel systems, which weaken the cutting insert and necessitate precise alignment, leading to alignment errors and increased costs.
Innovation Solution
A machining tool with an integrated coolant channel system where the branch channel runs exclusively through the cutting web, eliminating the need for the channel to extend into the cutting insert, ensuring a continuous and loss-free coolant supply, and allowing for a smaller thickness of the cutting insert, thus reducing manufacturing complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the coolant channel section is incorporated into the cutting insert, then cooling and chip removal are improved, but the cutting insert is weakened and requires a larger rod thickness
Solution Approach 1:
The patent extracts the coolant channel section from the cutting insert and relocates it to the tool body. The branch channel now runs exclusively through the cutting web of the tool body, with its mouth opening positioned in the jacket surface of the cutting web rather than in the cutting insert. This extraction eliminates the weakening effect on the cutting insert while preserving the cooling function through the coolant supply to the cutting edge area.
2Temperature
If the coolant channel section is incorporated into the cutting insert, then cooling is improved, but manufacturing complexity and costs increase due to complex machining methods
Solution Approach 1:
The patent extracts the coolant channel section from the cutting insert and relocates it to the tool body. The branch channel now runs exclusively through the cutting web of the tool body, with its mouth opening positioned in the jacket surface of the cutting web. This allows the tool body to be manufactured using simple drilling methods on ductile material, while the cutting insert can be manufactured separately using appropriate methods for hard materials, significantly reducing overall manufacturing complexity and costs.
Solution Approach 2:
The patent segments the coolant channel system into two separate components: the main channel and branch channel are formed in the tool body, while the cutting insert is manufactured separately and mounted on the tool body. This segmentation allows each component to be optimized and manufactured independently using the most suitable methods for each material and function, reducing overall manufacturing complexity.
3Temperature
If the coolant channel section is incorporated into the cutting insert, then cooling is improved, but alignment precision requirements increase leading to potential alignment errors
Solution Approach 1:
The patent extracts the coolant channel section from the cutting insert and relocates it to the tool body. The branch channel runs exclusively through the cutting web with its mouth opening in the jacket surface of the cutting web. This eliminates the need for precise alignment between the coolant channel and the cutting insert, as the channel is now an integral part of the tool body that is manufactured separately and mounted without requiring complex alignment procedures.
4Quantity of substance
If the branch channel runs through the cutting insert, then coolant supply to the cutting edge is improved, but the completion of the machining tool becomes complex and cost-intensive
Solution Approach 1:
The patent extracts the coolant channel section from the cutting insert and relocates it to the tool body. The branch channel now runs exclusively through the cutting web of the tool body, with its mouth opening positioned in the jacket surface of the cutting web. This simplifies the overall tool completion process, as the tool body can be manufactured using simple drilling methods, and the cutting insert is mounted separately without requiring complex integration of coolant channels.
Solution Approach 2:
The patent segments the coolant channel system into two separate components: the main channel and branch channel are formed in the tool body, while the cutting insert is manufactured separately and mounted on the tool body. This segmentation allows each component to be optimized and manufactured independently using the most suitable methods for each material and function, reducing overall manufacturing 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 solution enables economic manufacturing of machining tools with improved cooling and chip removal capabilities, ensuring a reliable coolant supply and reducing the risk of alignment errors, while maintaining the structural integrity of the cutting insert.
Implementation Method 1
a central main channel, which is guided through the tool body, is to form a connection to at least one coolant channel section, which is incorporated into the cutting insert
Implementation Method 2
To improve the cooling, chip removal as well as lubrication of the at least one cutting insert
Implementation Method 3
improve the cooling, chip removal, and lubrication of the at least one cutting insert
Data Source
AI summary
A one or multiple cutting edge machining tool, in particular milling, reaming or drilling tool, includes a tool body (12), which extends along a central tool axis and which has at least one cutting web (20), which carries a cutting insert (22), which protrudes radially beyond a circumferential jacket surface (21) of the cutting web (20) and which cuts at least circumferentially, and an integrated coolant channel system, which has a main channel (28) guided along the tool axis (11) and, for each cutting web (20), at least one branch channel (29, 29a, 29b), which branches off the main channel (28) and which is guided through the cutting web (20). The at least one branch channel (29, 29a, 29b), which is guided exclusively through the cutting web (20), has a mouth opening (30, 30a, 30b), which lies in the jacket surface (21) of the cutting web (20).