Saw Blade Disc Structure for Noise, Heat, and Crack Control
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Solution Overview
Problem
Existing saw blades face challenges in reducing noise during cutting operations while maintaining high heat dissipation efficiency and preventing cracking, with current solutions either being costly or ineffective in noise reduction and stress distribution.
Innovation Solution
A saw blade design featuring a pair of steel discs with equidistantly mounted diamond segments and a copper plating layer, along with overlapping and unmatched patterns on the discs' edges to reduce noise and distribute stress, enhancing heat dissipation and noise absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a sandwich shank-type saw blade with copper plates is used, then noise reduction and heat dissipation are improved, but manufacturing complexity and production cost increase significantly
Solution Approach 1:
The invention extracts the noise reduction function from the complex sandwich structure with copper plates and implements it through a simpler detenso shank structure with engraved patterns filled with resin, achieving noise reduction through acoustic impedance difference without requiring copper plates or complex sandwich assembly
Solution Approach 2:
The invention replaces expensive copper plates with inexpensive resin material that can be easily injected into engraved patterns, significantly reducing production cost while achieving comparable noise reduction效果
2Ease of manufacture
If a detenso shank-type saw blade with resin-filled patterns is used, then production cost is reduced, but noise reduction effectiveness and heat dissipation performance deteriorate
Solution Approach 1:
The invention optimizes the parameters of the detenso shank structure by adjusting the pattern depth, width, and distribution, as well as the resin material properties, to achieve noise reduction effectiveness comparable to sandwich shank structures while maintaining low production cost
3Object-affected harmful factors
If U-shaped slots are used in the disc, then cutting noise is reduced, but stress concentration causes cracking during high-impulse cutting
Solution Approach 1:
The invention modifies the symmetric U-shaped slot into an asymmetric K-shaped slot with different arm lengths and angles, which disrupts resonance patterns to reduce noise while the extended arms provide stress distribution to prevent cracking during high-impulse cutting operations
4Strength
If K-shaped slots are used in the disc, then stress distribution and crack resistance are improved, but resonance increases cutting noise
Solution Approach 1:
The invention introduces dynamic characteristics by making the K-shaped slot arms of unequal length and positioning them at specific angles, which creates asymmetric vibration patterns that reduce resonance noise while maintaining the stress distribution benefits of the K-shape configuration
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 achieves significant noise reduction and improved heat dissipation with a simple configuration, effectively dispersing impact stress to prevent cracking, while being cost-effective and easy to manufacture.
Implementation Method 1
a material having different acoustic impedance, for example, copper plates 6a, 6b, is interposed between the two discs to absorb noise generated during cutting
Implementation Method 2
the aforementioned copper plates 6a, 6b can also effectively dissipate thermal energy generated upon absorption of noise by the sandwich shank
Implementation Method 3
having partial patterns formed in opposite directions along circumferences of the pair of steel discs in contact with each other, respectively, to reduce noise and prevent cracking caused by concentration of stress during cutting
Data Source
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AI summary
The present invention relates to a saw blade having a noise and stress-reduction structure, the saw blade having a structure in which a plurality of diamond segments are mounted at a first unit and the first unit has a second unit, thereby reducing the noise generated during a cutting operation, while increasing heating performance with a relatively simple configuration, and simultaneously dispersing impact stress so as to prevent the occurrence of cracks.