Devitrified Glass Finishing Medium for Cost-Effective Deburring

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Solution Overview

Problem

Existing vibratory finishing media, such as ceramic and metallic materials, are costly, difficult to produce, and have short lifespans, leading to environmental concerns and increased waste, while polymer-based media have a significant carbon footprint and are hard to recycle.

Innovation Solution

A finishing medium composed of solid cast silica glass elements, formed by crushing and heat-treating silica glass cullet to create a devitrified material, which is hard, cost-effective, and can be recycled, reducing waste and environmental impact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If ceramic finishing media are used, then hardness and sharp edges are improved, but cost and production difficulty increase

Engineering Contradiction:

ImprovehardnessVSAvoidproduction cost

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The patent changes the material parameter from ceramic to glass, which has similar hardness properties but is significantly cheaper to produce. The glass medium is formed by melting and casting, eliminating the complex ceramic fabrication process while maintaining the necessary hardness for effective finishing.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs glass media that can be easily replaced and is much cheaper than ceramic alternatives. The low cost allows for frequent replacement to maintain sharp edges, effectively treating the media as a consumable item rather than a long-term investment.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Ease of manufacture

If metallic finishing media are used, then ease of manufacture and recyclability are improved, but edge retention and lifespan deteriorate

Engineering Contradiction:

ImprovemanufacturabilityVSAvoidlifespan

Core Design Contradiction:

Ease of manufactureVSDuration of action of moving object

Solution Approach 1:

The patent changes the material from metal to glass, which has superior hardness and edge retention properties. This parameter change results in media that maintain their sharp edges much longer than metallic alternatives, extending the effective lifespan while remaining easy to manufacture through melting and casting processes.

Inventive Principle:

Principle #35Parameter changes

3Duration of action of moving object

If carbide-based metallic media are used, then edge retention is improved, but cost and production difficulty increase

Engineering Contradiction:

Improveedge retentionVSAvoidproduction cost

Core Design Contradiction:

Duration of action of moving objectVSEase of manufacture

Solution Approach 1:

The patent changes the material composition from carbide-based metal to glass, achieving comparable or superior edge retention through glass's inherent hardness and brittleness. The glass media maintains sharp edges effectively while being much simpler and cheaper to produce through conventional melting and casting techniques.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent adopts glass media as a cost-effective alternative to expensive carbide materials. By treating the glass media as a replaceable consumable item, the system achieves effective edge retention without the high production costs associated with carbide-based solutions.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

4Ease of manufacture

If polymer-based finishing media are used, then cost and ease of manufacture are improved, but environmental impact and recyclability worsen

Engineering Contradiction:

Improveproduction costVSAvoidenvironmental impact

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material from polymer to glass, fundamentally altering the environmental profile. Glass is inert, non-toxic, and infinitely recyclable, eliminating the environmental harm associated with polymer degradation and recycling difficulties while maintaining cost-effectiveness.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent converts the typically problematic issue of media disposal into a benefit by using glass, which can be easily recycled and reused. The media that would otherwise be waste can be collected, remelted, and recast into new finishing media, turning a potential environmental harm into a sustainable circular economy solution.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 devitrified glass finishing medium provides a durable, cost-effective solution that can be recycled, reducing waste and environmental impact while maintaining effectiveness in surface smoothing and deburring processes.

Implementation Method 1

A finishing medium composed of solid cast silica glass elements, formed by crushing and heat-treating silica glass cullet to create a devitrified material

Methodology Applied

Scientific EffectDevitrification: Crystallisation

Implementation Method 2

formed by crushing and heat-treating silica glass cullet

Methodology Applied

Scientific EffectMelting: Melting

Data Source

PatentEP2197626B1Deburring medium and process

Publication Date: 2015.07.08 VIBRAGLAZ (UK) LTD

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AI summary

A vibratory finishing medium element having at least a portion comprising a devitrified material.