Cutting Tool Holder Damping Structure for Deep Grooving
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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 without compromising performance.
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) specifically in the region where vibration occurs most intensely, rather than uniformly increasing the width of the entire tool holder. This localized approach reduces vibration while minimizing additional material and power requirements
Solution Approach 2:
The patent uses composite materials by combining viscoelastic material (for vibration damping) with high-density material (for maintaining stiffness) within the tool holder structure. This composite approach allows effective vibration control without requiring uniform thickness increase throughout the tool holder
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 applies local quality by adding vibration dampening elements (viscoelastic material and high-density material) specifically in the region where vibration occurs most intensely, rather than uniformly increasing the width of the entire tool holder. This localized approach reduces vibration while minimizing additional material and power requirements
Solution Approach 2:
The patent uses composite materials by combining viscoelastic material (for vibration damping) with high-density material (for maintaining stiffness) within the tool holder structure. This composite approach allows effective vibration control without requiring uniform thickness increase throughout the tool holder
3Object-affected harmful factors
If cutting speed is decreased to reduce vibration, then vibration is reduced, but metal removal rate decreases
Solution Approach 1:
The patent introduces vibration dampening elements as intermediary components between the cutting tool and the workpiece. These elements act as mediators that absorb and dissipate vibration energy, allowing the tool to maintain higher cutting speeds without transmitting harmful vibrations to the workpiece, thereby preserving productivity
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 vibration dampening elements effectively reduce tool holder vibrations, enhancing surface finish and productivity by maintaining stiffness and absorbing cutting forces, thus allowing for deeper grooving without increasing power consumption or material waste.
Implementation Method 1
Incorporating vibration dampening elements, such as high-density pins and viscoelastic sleeves, within the cutting tool holders to absorb cutting forces and maintain stiffness
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.