Milling Tool Centering Tip for Axial Plunging
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Solution Overview
Problem
Conventional milling tools are limited in their ability to perform axial immersion (plunging) due to geometric constraints, which restricts their application and leads to inefficient processing, especially for deep recesses, and they are prone to chip accumulation and edge damage during diagonal immersion (ramping).
Innovation Solution
A milling tool design featuring a centering tip that ascends towards the central axis and is recessed axially, allowing for stable axial immersion while maintaining the capability for diagonal immersion, with arched edge configurations to prevent chip accumulation and enhance cutting angle stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional milling tools use smaller chip flutes and more than two cutting edges to bear high radial stresses, then the tool strength is improved, but the tool cannot perform axial immersion (plunging) because cuttings cannot be discharged through the tight chip flutes
Solution Approach 1:
The front edges are segmented into multiple sections: a first section extending from the front side to the center axis, and a second section extending from the first section to the outer circumference. This segmentation allows different portions of the cutting edge to serve different functions - the first section enables axial immersion while the second section maintains radial cutting capability.
Solution Approach 2:
The cutting edge geometry is extended into the axial dimension by creating sections that ascend towards the central axis. This dimensional change allows the cutting edge to engage material during axial immersion while maintaining the radial stress-bearing capability through the circumferential portion.
2Reliability
If milling tools immerse diagonally under a ramp into the work piece, then the tool can avoid chip accumulation, but the processing time increases significantly and the immersion depth is limited
Solution Approach 1:
The milling tool is designed with universal immersion capability, allowing it to perform both axial immersion (plunging) and diagonal immersion (ramping) operations. The geometric configuration of the front edges with sections ascending towards the center axis enables the tool to adapt to different immersion methods without compromising chip discharge or processing efficiency.
3Adaptability or versatility
If the front edges descend in several sections towards the central axis, then steep immersion angles are achievable, but the tool geometry becomes complex and manufacturing difficulty increases
Solution Approach 1:
The front edges have different geometric characteristics in different sections. The first section has a specific inclination towards the center axis to enable steep immersion angles, while the second section has a different configuration for radial cutting. This local differentiation of geometric quality allows the tool to achieve versatile immersion capability while maintaining manufacturability through localized geometric features.
Data Source
AI summary
A milling tool is suggested having a base body (3), a central axis (M), and a front side (5), whereby at least two geometrically defined first front edges (9) that are arranged, respectively, at front side (5) of base body (3) exhibit a first edge section (13) facing central axis (M). Milling tool (1) distinguishes itself by the first edge sections (13) of the at least two front edges (9) being formed in an ascending fashion towards center axis (M), so that they form a centering tip (15), and that centering tip (15) is arranged in a recessed manner in an axial direction when compared with an axial outermost point (17) of at least two of the first front edges (9) (FIG. 1).