Super-abrasive Grinding Wheel with Diamond and CBN Composite Layer

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional super-abrasive grinding wheels have short tool life due to factors like workpiece type, processing conditions, and tool specifications, leading to inefficient grinding performance.

Innovation Solution

A super-abrasive grinding wheel with a core and a single-layer super-abrasive grain layer comprising diamond abrasive grains and CBN abrasive grains fixed by a binder, where diamond grains prevent excessive crushing of CBN grains, enhancing tool longevity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If CBN abrasive grains are used alone in the grain layer, then the grinding wheel can maintain sharpness initially, but the CBN grains undergo excessive crushing during use, leading to short tool life

Engineering Contradiction:

Improvetool lifeVSAvoidresistance to crushing

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent combines diamond abrasive grains and CBN abrasive grains in a single-layer grain structure. Diamond grains, being harder than CBN, prevent excessive crushing of CBN grains during grinding operations. This composite abrasive layer maintains cutting edge integrity and extends tool life compared to using CBN alone.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent creates a grain layer with locally differentiated functions: diamond grains are positioned to provide hardness and prevent crushing in high-stress areas, while CBN grains contribute to efficient cutting. This local quality differentiation optimizes the overall performance of the grain layer.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If multiple layers of abrasive grains are used, then different functions can be achieved in different layers, but the structure becomes more complex and manufacturing more difficult

Engineering Contradiction:

Improvefunctional differentiationVSAvoidgrain layer structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple abrasive grain types (diamond and CBN) into a single-layer structure. This single layer performs multiple functions simultaneously: diamond grains prevent crushing while CBN grains provide cutting action. This eliminates the need for complex multi-layer structures while achieving functional differentiation.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single-layer grain structure is designed to be multi-functional, with both diamond and CBN grains contributing to different aspects of grinding performance. This universal design achieves the benefits of functional differentiation without the complexity of multiple layers.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 configuration results in a longer tool life by preventing excessive crushing of CBN abrasive grains and maintaining grinding wheel sharpness, effectively extending the grinding time before wear and burnout.

Implementation Method 1

diamond abrasive grains prevent excessive crushing of CBN abrasive grains

Methodology Applied

Scientific EffectMechanical support and stress distribution: Mechanical Force

Data Source

PatentUS10875152B2Super-abrasive grinding wheel

Publication Date: 2020.12.29 A L M T CORP

AI summary

A super-abrasive grinding wheel includes a core and a super-abrasive grain layer provided on a surface of the core, the super-abrasive grain layer including diamond abrasive grains and CBN abrasive grains, the diamond abrasive grains and the CBN abrasive grains being fixed to the core in a single layer by a binder.