Wear-Resistant Attack Tool With Carbide Segments
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Attack tools used in formation degradation processes, such as asphalt milling and mining, experience significant wear, leading to costly downtime and operational inefficiencies due to frequent tool replacement.
Innovation Solution
A wear-resistant attack tool design featuring a cemented metal carbide segment bonded to a metal segment with a shank, incorporating hard inserts and superhard materials like polycrystalline diamond, which are bonded to the tool to enhance durability and extend tool life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional attack tools are used in formation degradation processes, then cutting ability is maintained, but wear resistance deteriorates leading to frequent tool replacement
Solution Approach 1:
The attack tool employs a composite structure combining a metal base material with cemented carbide segments and hard inserts. The metal segment provides toughness and impact resistance, while the cemented carbide and hard inserts (with hardness greater than 60 HRC) provide superior wear resistance. This composite material approach resolves the contradiction by integrating materials with complementary properties to achieve both strength and extended duration of action.
Solution Approach 2:
The invention applies hard inserts and cemented carbide segments at specific locations on the attack tool where wear occurs most intensely. Rather than making the entire tool from ultra-hard material (which would be too brittle), the hard materials are strategically placed at the cutting edge and high-wear zones, while the metal base provides overall structural integrity. This localized application of different material qualities optimizes both wear resistance and tool lifespan.
2Strength
If hard inserts with high hardness are bonded to the metal segment, then wear resistance improves, but device complexity increases
Solution Approach 1:
The attack tool is divided into distinct segments: a metal base segment and separate cemented carbide or hard insert elements. These segments are bonded together to form the complete tool. This segmentation allows each component to be optimized independently for its specific function while simplifying the manufacturing and replacement process. The modular segmented structure resolves the complexity issue by making the tool easier to manufacture, maintain, and replace compared to a monolithic design.
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 design significantly reduces wear and tear, extending the lifespan of attack tools, minimizing downtime and operational costs by distributing impact stresses and improving cutting efficiency.
Implementation Method 1
the insert has a hardness greater than 60 HRc
Implementation Method 2
The design significantly reduces wear and tear, extending the lifespan of attack tools
Data Source
AI summary
In one aspect of the invention, an attack tool is disclosed which comprises a wear-resistant base suitable for attachment to a driving mechanism. The wear resistant base has a shank and metal segment. A cemented metal carbide segment is bonded to the metal segment opposite the shank. At least one hard insert is bonded to the metal segment proximate the shank, wherein the insert has a hardness greater than 60 HRc.