Damped Cutting Tool Holder for Deep Grooving Stability
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Solution Overview
Problem
Conventional cutting tool holders experience vibration issues during metal cutting operations, leading to poor surface finish and potential damage, and reducing vibration by decreasing cutting speed or increasing width negatively impacts productivity and material efficiency.
Innovation Solution
Incorporating vibration dampening elements, such as high-density pins and viscoelastic sleeves, within the cutting tool holders to absorb cutting forces and maintain stiffness, allowing for reduced width while increasing grooving depth and minimizing vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the width of cutting tool holders is increased to reduce vibration, then vibration is reduced, but power consumption increases and material waste increases
Solution Approach 1:
The patent applies local quality by adding vibration dampening elements (viscoelastic material and high-density material) at specific locations within the tool holder body rather than increasing the overall width. The viscoelastic material is positioned to absorb vibration energies, while the high-density material is strategically placed to increase stiffness at critical areas, providing targeted vibration reduction without increasing power consumption or material waste.
2Object-affected harmful factors
If the width of cutting tool holders is increased to reduce vibration, then vibration is reduced, but material waste increases
Solution Approach 1:
The patent implements the nesting principle by placing vibration dampening elements (viscoelastic material and high-density material) inside the existing tool holder body structure. The viscoelastic material is positioned within the tool holder body, and the high-density material is embedded at specific locations, allowing vibration reduction without increasing the external dimensions or material waste of the tool holder.
3Object-affected harmful factors
If the cutting speed is decreased to reduce vibration, then vibration is reduced, but metal removal rate decreases
Solution Approach 1:
The patent applies parameter changes by modifying the physical properties of the tool holder body through the addition of viscoelastic material (to change damping characteristics) and high-density material (to change stiffness and mass distribution). These parameter changes enable the tool holder to resist vibration at normal cutting speeds, maintaining productivity while reducing vibration without requiring speed reduction.
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 solution effectively reduces vibration, maintains productivity, and minimizes material waste by allowing deeper grooving without increasing power consumption, thereby enhancing cutting performance and tool longevity.
Implementation Method 1
the dampening elements may comprise a viscoelastic material
Implementation Method 2
vibration dampening elements allow the cutting tool holders to have a smaller width while still providing an increased grooving depth
Data Source
AI summary
Cutting tool holders are disclosed that include vibration dampening elements. The vibration dampening elements may extend parallel to a longitudinal plane of the cutting tool holder. The vibration dampening elements allow the cutting tool holders to have a smaller width while still providing higher grooving depth.