Saw Blade Reduction Grooves for Low-Friction Curved Cuts
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Solution Overview
Problem
Conventional sawing tools are heavy and require high power consumption due to their design, leading to increased friction and potential burn marks on workpieces during machining, and they lack stability and ease of use for curved cuts.
Innovation Solution
The sawing tool features reduction grooves extending over more than 50% of the main body's transverse extent, perpendicular to the cutting edge, and webs that extend significantly, providing a lightweight design with reduced friction and improved stability, allowing for low power consumption and efficient chip removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional sawing tool design is used, then structural strength is maintained, but weight increases and power consumption increases
Solution Approach 1:
The main body of the sawing tool is segmented by introducing multiple reduction grooves that extend transversely across the flank, dividing the solid structure into multiple sections while maintaining overall structural integrity through the remaining material bridges
Solution Approach 2:
The main body is transformed from a solid structure to a porous-like structure with reduction grooves creating void spaces, reducing density and weight while preserving sufficient strength for the application
2Object-affected harmful factors
If conventional sawing tool design is used, then structural stability is maintained, but friction increases causing burn marks
Solution Approach 1:
Reduction grooves segment the main body structure, creating a lighter design that reduces overall friction during machining operations, thereby minimizing burn marks on workpieces while maintaining stability through strategic groove placement
Solution Approach 2:
The cross-sectional area and mass of the main body are changed by introducing reduction grooves, altering the physical parameters to reduce friction and heat generation during operation
3Use of energy by moving object
If reduction grooves are introduced to reduce weight, then power consumption decreases, but structural strength may be compromised
Solution Approach 1:
Reduction grooves are introduced to a sufficient extent to achieve meaningful weight reduction and power consumption decrease, while the remaining material structure maintains adequate strength for the intended application
Solution Approach 2:
The main body structure is modified locally by introducing reduction grooves in specific regions, creating areas of reduced mass while preserving strength in critical load-bearing zones
Data Source
AI summary
A sawing tool, in particular a saw blade, includes: at least one connection region, in particular a shaft, for forming a connection to a tool holder of a hand-held power tool; at least one main body, in particular a carrier, which is connected to the connection region and is designed in one piece; at least one set of saw teeth which is located on the main body; and a plurality of reduction grooves which are located on the main body, in particular introduced into the main body by removing material, and which have a main extension running transversely to a cutting edge of the saw teeth. The reduction grooves extend at least over more than 50% of a total transverse extent of at least one flank of the main body from the cutting edge towards a rear side of the main body, the rear side facing away from the saw teeth.