Band Saw Blade Chip-Splitting Tooth for More Cutting Channels
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Solution Overview
Problem
Existing saw bands face challenges in achieving high surface quality and performance while maintaining cost-effectiveness, as they often require a large number of geometrically differently designed teeth to form a sufficient number of cutting channel sections, which increases production costs.
Innovation Solution
The saw band incorporates a design with a small number of geometrically differently designed teeth, utilizing a chip breaker tooth to divide the cutting edge of another tooth into effective and ineffective portions, thereby increasing the number of cutting channel sections without significantly increasing production costs, resulting in improved cutting performance, surface quality, and reduced noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of geometrically differently designed teeth are used to form sufficient cutting channel sections, then cutting performance and surface quality are improved, but production costs increase
Solution Approach 1:
The cutting edge of a single tooth is segmented into multiple effective cutting edge sections by introducing ineffective cutting edge sections between them. This segmentation allows one tooth to function as multiple cutting elements, creating multiple cutting channel sections without requiring multiple different tooth geometries, thereby reducing production costs while maintaining cutting performance
Solution Approach 2:
Different sections of the cutting edge of a single tooth are given different functional qualities - some sections are effective cutting edges while others are ineffective cutting edges. This local differentiation allows the tooth to create multiple cutting channel sections with varying functions (e.g., different chip evacuation paths) while using a uniform tooth geometry, reducing manufacturing complexity and cost
2Manufacturing precision
If a large number of geometrically differently designed teeth are used to form sufficient cutting channel sections, then surface quality is improved, but device complexity increases
Solution Approach 1:
The cutting edge is segmented into multiple effective sections separated by ineffective sections, allowing a single tooth geometry to produce multiple cutting channel sections that contribute to surface quality. This eliminates the need for multiple different tooth geometries, reducing device complexity while maintaining high surface quality through precise control of each cutting edge section
Solution Approach 2:
A single tooth design is made multi-functional by incorporating multiple effective cutting edge sections that can perform different cutting functions (e.g., different chip evacuation directions, different engagement angles). This universal tooth design replaces multiple specialized tooth geometries, reducing device complexity while maintaining the surface quality benefits of multiple cutting channel sections
Data Source
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AI summary
The invention relates to a saw blade (1) having a chamfered tooth (10) having two effective cutting-edge segments (7) arranged in the region of the chamfer (15), between which cutting-edge segments an ineffective cutting-edge segment (8) of the tooth (10) is formed. Thus, five cutting-channel segments (18) can be formed by means of only two geometrically different teeth (10).