Segmented Tipped Saw Blade Geometry for Low-Noise Smooth Cutting
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Solution Overview
Problem
Existing segmented cutting type tipped saw blades face challenges in achieving low cutting resistance and noise reduction while maintaining a smooth cut surface, particularly in cutting materials like steel and aluminum.
Innovation Solution
A segmented cutting type tipped saw blade with a disc-shaped base metal and multiple types of tips, including first and second end tips, and ridge tips, where each tip has a top bevel angle between 5° and 10°, and radial positions optimized to distribute cutting power evenly, reducing friction and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If conventional tips with larger contact areas are used, then cutting power is sufficient, but friction force increases leading to higher cutting resistance and noise
Solution Approach 1:
The patent applies local quality by creating different tip end profiles (ridge tips with protruding tip ends and end tips with recessed tip ends) along the groove width direction. This allows different local regions of the tips to have optimized contact characteristics with the workpiece, reducing overall friction force while maintaining adequate cutting power distribution.
2Productivity
If conventional tip designs are used, then cutting efficiency is maintained, but chips accumulate in the groove making discharge difficult
Solution Approach 1:
The patent segments the cutting edge into multiple tip types (ridge tips and end tips) with different profiles arranged along the groove width direction. This segmentation creates varied chip breakage patterns and prevents uniform chip accumulation, allowing chips to be more easily discharged from the groove while maintaining cutting efficiency.
3Ease of manufacture
If tips with uniform profiles are used, then manufacturing is simple, but cut surface smoothness is insufficient
Solution Approach 1:
The patent employs asymmetry by designing tip ends with different profiles (protruding vs. recessed) relative to the groove width direction. This asymmetric arrangement of tip profiles contributes to creating a smoother cut surface by varying the cutting action across the groove width, while the manufacturing process remains relatively simple through standardized tip formation methods.
Data Source
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AI summary
A segmented cutting type tipped saw blade includes a first ridge tip (11), a second ridge tip (12), a first end tip (13) and a second end tip (14). A first end (13f) of the first end tip (13), a second end (14g) of the second end tip (14), a tip end (11e) of the first ridge tip, and a tip end (12e) of the second ridge tip (12) are the tip ends projecting radially outward. A top bevel surface (13c) extending from the first end (13f) and a top bevel surface (14c) extending from the second end (14g), a first bevel surface (11c) and a second bevel surface (11d) extending from the tip end (11e), a first bevel surface (12c) and a second bevel surface (12d) extending from the tip end (12e) have a top bevel angle of greater than or equal to 3° and less than or equal to 10°, respectively.