Milling Tool Face Cutting Edge Adjoining Coolant Outlet
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Solution Overview
Problem
Existing milling tools face challenges in achieving efficient coolant and lubricant flow, chip removal, and maintaining surface quality due to turbulence and clogging issues, which affect machining efficiency and tool longevity.
Innovation Solution
The milling tool design features a face cutting edge that closely adjoins the coolant and lubricant channel outlet, eliminating free surfaces for smooth flow and incorporating a chip breaker section with a specific angle and curvature to enhance chip removal and prevent clogging, along with a centering device for precise axial immersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a free surface is maintained between the coolant channel outlet and the face cutting edge, then coolant and lubricant can flow off radially with less turbulence, but the milling tool efficiency decreases due to shorter cutting edges
Solution Approach 1:
Instead of maintaining a free surface between the coolant outlet and cutting edge as conventional design does, the invention inverts this approach by allowing the face cutting edge to directly adjoin the outlet opening of the coolant channel, eliminating the free surface and enabling longer cutting edges for improved productivity
2Productivity
If the face cutting edge is extended to increase milling efficiency, then productivity improves, but chip removal becomes difficult and clogging of the coolant channel occurs
Solution Approach 1:
The face cutting edge is segmented into a regular radial section and a chip breaker section with different orientations. The chip breaker section is tilted away from the radius counter to the direction of rotation, creating a specific chip breaker angle that forces chips toward the axis of rotation for effective removal while allowing the cutting edge to extend closer to the coolant outlet
3Ease of manufacture
If residual material in the center free of cutting edges is not removed, then chip removal is easier, but surface quality deteriorates due to torn residual material
Solution Approach 1:
The chip breaker section performs preliminary action by forcing chip sections and residual material in its path toward the axis of rotation before they can cause surface quality issues. This preliminary forcing action occurs during the cutting process itself, enabling both easy chip removal and good surface quality
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 improves coolant and lubricant throughput, reduces chip jamming, enhances surface quality, and extends tool life by promoting efficient chip removal and minimizing residual material, allowing for longer cutting edges and increased machining efficiency.
Implementation Method 1
a coolant and/or lubricant channel (20) which runs through the base body (1) and opens into the end face (4) with its outlet opening (21)
Implementation Method 2
It and the remaining material are then discharged into the chip removal channel by centrifugal force and/or by pressurized coolant and/or lubricant
Data Source
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AI summary
A milling tool (1) with a substantially cylindrical base body (1) with an axis of rotation, with a shank section extending to a first end of the milling tool (1) for clamping the milling tool (1) in a machine tool, with a milling section (3) extending to an opposite second end of the milling tool (1) and a milling section (3) opposite the shank section, with an end face (4) of the milling section (3) which has at least one end cutting edge (5) extending radially from the axis of rotation and in a top view largely straight to the circumference, with a cooling and/or lubricant channel (20) opening into the end face (4), the opening of which (21) is located in the end face (4) concentrically to the axis of rotation, is further developed by the fact that the end cutting edge (5) extends up to the opening (21).