Peripheral Milling Cutter Layout for Uniform Chip Load
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Solution Overview
Problem
Existing circumferential milling tools face challenges in achieving a high metal removal rate while maintaining a high surface quality and extending the service life of cutting edges, while also ensuring a uniform load on the tool.
Innovation Solution
The circumferential milling tool is designed with cutting edges arranged in multiple groups, each with a specific setting angle and average chip thickness, ensuring that all cutting edges are loaded uniformly by maintaining equal average chip thickness across all groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cutting edges are arranged to achieve high metal removal rate, then productivity is improved, but tool load becomes uneven and service life decreases
Solution Approach 1:
The cutting edges are divided into multiple groups (first cutting edge group and second cutting edge group) arranged on different circular paths with different diameters. Each group processes different portions of the workpiece, allowing the total metal removal rate to be increased while distributing the load more evenly across all cutting edges through coordinated operation.
2Productivity
If cutting edges are arranged to increase metal removal rate, then productivity is improved, but surface quality deteriorates
Solution Approach 1:
By segmenting the cutting edges into multiple groups operating on different circular paths, each group can be optimized for specific functions. Some groups remove material efficiently while others perform finishing passes, thereby maintaining high productivity while ensuring high surface quality through the coordinated action of different groups.
3Productivity
If multiple cutting edge groups are arranged on different diameters, then productivity is improved, but device complexity increases
Solution Approach 1:
The cutting edges are arranged asymmetrically on circular paths of different diameters rather than uniformly on a single path. This asymmetric arrangement allows optimization of each cutting edge's engagement with the workpiece, improving productivity while the regular geometric pattern (circular paths) keeps the complexity manageable through mathematical regularity.
Data Source
AI summary
A circumferential milling tool (10) for cutting metal is described, which comprises a milling cutter body (14) that can be rotated about a tool axis (12) and has at least two cutting edge groups. The arrangement of the first cutting edge group results in a first average chip thickness for the cutting edges (16) of the first cutting edge group and a second average chip thickness for the cutting edges (18, 20, 22, 24, 26) of the second cutting edge group. The first average chip thickness and the second average chip thickness are substantially equal. A method for arranging cutting edges (16, 18, 20, 22, 24, 26) on a circumferential milling tool (10) that can be rotated about a tool axis (12) is presented as well.