Side Milling Cutter Vibration Damping for Slot Cutting Accuracy
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Solution Overview
Problem
Existing side milling cutters for slot cutting face challenges in damping vibrations, particularly when multiple nodes are generated in the cutting part, leading to reduced accuracy and potential tool breakage due to ineffective damping structures in existing technologies.
Innovation Solution
A side milling cutter with disc-shaped vibration damping structures positioned along the outer circumference, utilizing viscoelastic bodies and weights to counteract vibrations, ensuring effective damping across various vibration modes by adjusting the configuration and placement of these structures to match the cutting part's phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the diameter of the disc milling cutter is increased to improve productivity, then the productivity is improved, but the vibration of the cutter during slot cutting increases leading to potential breakage of cutting parts and deterioration of slot cutting accuracy
Solution Approach 1:
The patent applies preliminary action by pre-installing vibration damping structures (viscoelastic bodies) within the cutter body before the cutting operation. These damping structures are positioned in advance to counteract the vibration that will occur during cutting, thereby preventing vibration-induced accuracy deterioration and tool breakage even when using large-diameter cutters for high productivity slot cutting operations
2Device complexity
If conventional damping structures are used in existing side milling cutters, then the device complexity is reduced, but the vibration damping effectiveness is insufficient when multiple nodes are generated in the cutting part
Solution Approach 1:
The patent applies local quality by strategically positioning multiple vibration damping structures (viscoelastic bodies) at specific locations within the cutter body corresponding to the node positions of the cutting part. Instead of using a single generic damping structure, the damping elements are locally distributed to match the vibration mode patterns, ensuring effective vibration damping even when multiple nodes are generated during slot cutting operations
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 proposed solution significantly enhances the dynamic rigidity of the cutter, improving machining accuracy and reducing vibration amplitude by up to 86% compared to conventional cutters, effectively damping vibrations even in modes with multiple nodes.
Implementation Method 1
A side milling cutter with disc-shaped vibration damping structures positioned along the outer circumference, utilizing viscoelastic bodies and weights to counteract vibrations
Data Source
AI summary
A side milling cutter for slot cutting is provided whose vibration can be damped even in cases where a vibration mode of the cutter generates plural nodes in a cutting part. A side milling cutter for slot cutting of the present invention includes a disc-shaped cutter and a plurality of cartridges as cutting edges provided at a predefined interval in a circumferential direction along an outer circumference of the disc-shaped cutter. The disc-shaped cutter cuts a predefined slot on a workpiece using the cartridges by circumferentially rotating. The disc-shaped cutter internally includes a plurality of vibration damping structures in the circumferential direction on a disk surface of the disc-shaped cutter.