Machining Segment Protruding Hard Particles Dry Concrete
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Solution Overview
Problem
Machining tools designed for wet concrete machining are not suitable for dry machining, as they produce no abrasive sludge to self-sharpen the cutting edges, leading to reduced machining rate and shorter tool life due to dulling of hard material particles.
Innovation Solution
The machining segment features hard material particles with projections greater than 400 μm embedded in a matrix material, enhancing attachment and wear resistance, allowing for efficient dry machining of concrete materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If machining segments with randomly distributed hard material particles are used for wet machining, then self-sharpening occurs due to abrasive sludge, but machining rate drops and service life shortens when used for dry machining
Solution Approach 1:
The patent applies local quality by creating distinct zones within the machining segment: a machining zone with high concentration of hard material particles (including protruding particles with height >400μm) for aggressive cutting in dry conditions, and a neutral zone with different material composition for stability. This zoned structure allows the segment to maintain high machining rates in dry conditions while preventing premature wear.
Solution Approach 2:
The patent uses composite materials by combining matrix material with hard material particles (such as diamond or cubic boron nitride) to create a machining segment with tailored properties. The composite structure enables the segment to withstand dry machining conditions while maintaining cutting effectiveness through the strategically positioned hard particles.
2Reliability
If hard material particles are completely embedded in matrix material, then attachment security increases, but machining rate decreases due to insufficient particle exposure
Solution Approach 1:
The patent applies local quality by creating distinct zones within the machining segment: a machining zone with high concentration of hard material particles (including protruding particles with height >400μm) for aggressive cutting in dry conditions, and a neutral zone with different material composition for stability. This zoned structure allows the segment to maintain high machining rates in dry conditions while preventing premature wear.
Solution Approach 2:
The patent applies preliminary action by pre-positioning hard material particles with specific projection heights (>400μm) before the machining process begins. These protruding particles are strategically placed to ensure they are the first to engage with the workpiece, initiating effective cutting action immediately and maintaining high machining rates from the start of operation.
3Ease of manufacture
If matrix material and hard material particles have similar wear rates, then cost effectiveness improves, but service life shortens due to premature particle exposure
Solution Approach 1:
The patent applies local quality by creating distinct zones within the machining segment: a machining zone with high concentration of hard material particles (including protruding particles with height >400μm) for aggressive cutting in dry conditions, and a neutral zone with different material composition for stability. This zoned structure allows the segment to maintain high machining rates in dry conditions while preventing premature wear.
Solution Approach 2:
The patent applies preliminary action by pre-positioning hard material particles with specific projection heights (>400μm) before the machining process begins. These protruding particles are strategically placed to ensure they are the first to engage with the workpiece, initiating effective cutting action immediately and maintaining high machining rates from the start of operation.
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 machining segment achieves a higher machining rate and extended service life by securely embedding hard material particles with projections greater than 400 μm, ensuring effective cutting performance in dry conditions.
Implementation Method 1
The machining segment features hard material particles with projections greater than 400 μm embedded in a matrix material, enhancing attachment and wear resistance, allowing for efficient dry machining of concrete materials
Data Source
AI summary
A machining segment for a machining tool which is rotatable in a direction of rotation about an axis of rotation includes an underside where the machining segment is connectable to a basic body of the machining tool by the underside. A machining zone has a matrix material and a plurality of first hard material particles where the plurality of first hard material particles are disposed in the matrix material in accordance with a defined particle pattern. Each of the plurality of first hard material particles has a respective projection in relation to the matrix material on an upper side of the machining segment. The projection of at least one of the plurality of first hard material particles is greater than 400 μm.