Resonant Self-Hammering Cutting Tool for Lower Cutting Forces
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Solution Overview
Problem
Conventional cutting tools are rigid and inflexible, limiting their adaptability to different materials and applications, and require additional mechanical features for hammering effects, which adds bulk and weight, and are constrained by traditional manufacturing methods, leading to inefficient cutting operations and tool wear.
Innovation Solution
A cutting tool with flexible, resiliently compliant support elements that move in correlation with rotational frequency, producing a hammering effect through vibrational modes, allowing for more complex designs and materials usage via additive manufacturing, and incorporating features like strain gauges and additional masses to alter resonance frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional rigid cutting tools are used, then structural strength is maintained, but adaptability to different materials and applications deteriorates
Solution Approach 1:
The cutting tool incorporates resiliently compliant support elements that allow dynamic movement and vibration during operation. These elements enable the tool to adapt its rigidity based on operational conditions, providing both strength when needed and compliance for adaptability to different materials.
Solution Approach 2:
The patent changes the physical state and mechanical properties of the support elements by designing them to operate at specific resonance frequencies. By adjusting operational parameters like rotational speed to match these frequencies, the tool transitions between rigid and compliant states to optimize performance for different cutting conditions.
2Productivity
If additional mechanical features are added for hammering effects, then cutting ability on hard materials is improved, but device complexity and weight increase
Solution Approach 1:
The patent utilizes mechanical vibration at resonance frequencies of the resiliently compliant support elements to generate self-hammering effects. This eliminates the need for separate hammering mechanisms, reducing device complexity while maintaining enhanced cutting ability on hard and non-compliant materials.
Solution Approach 2:
The cutting tool generates its own hammering effect through the natural resonance vibrations of its resiliently compliant support elements during rotation. The system serves itself by converting rotational motion into beneficial vibrational hammering without requiring external power sources or additional mechanical components.
3Adaptability or versatility
If traditional manufacturing methods are used, then manufacturing simplicity is maintained, but design complexity and material integration capabilities deteriorate
Solution Approach 1:
The patent merges multiple functions and components into integrated structures that can be manufactured as single pieces using additive manufacturing. This includes combining support elements, cutting elements, and sensor integration into unified components, enabling complex designs while simplifying the manufacturing process through consolidation.
Solution Approach 2:
The invention utilizes composite material structures that can be fabricated using additive manufacturing techniques. These composite structures provide both the resiliently compliant properties needed for vibration and hammering effects, while maintaining structural integrity and enabling integration of multiple materials with different properties in a single manufacturing process.
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
Enhances cutting abilities, prevents tool stalling, reduces cutting forces, and allows for more complex designs and materials integration, leading to improved cutting efficiency and tool longevity.
Implementation Method 1
the resiliently compliant support element moves in correlation to the rotational frequency at a preferred resonance frequency
Data Source
AI summary
A cutting tool with a plurality of cutting elements connected to a support structure wherein a portion of the support structure is configured to flex or bend based on the rotational frequency of the cutting tool. The rotational frequency of the cutting tool is a product of the design and composition of the tool.