Metal Composite Plate Corrugation Mating for Bonding

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Solution Overview

Problem

Existing methods for preparing metal composite plates/strip by rolling face challenges in achieving strong, consistent bonding between dissimilar metals, leading to issues like cracking and reduced yield, due to differences in mechanical properties and complex bonding interfaces.

Innovation Solution

A method involving corrugation-mating of composite surfaces on a base and cladding plate, followed by cleaning, sequential lamination, compacting, welding, and sealing, with specific techniques like spot welding and submerged-arc welding, and subsequent rolling to achieve a composite plate/strip with enhanced bonding and reduced oxidation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional rolling method is used to composite dissimilar metals, then the process is simple, but the bonding interface is complex and produces bubbles and lard cracks

Engineering Contradiction:

Improveprocess simplicityVSAvoidbonding quality

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent applies preliminary action by pre-processing the composite surfaces of both base plate and cladding plate through rolling to create corrugations before lamination. This preliminary corrugation creation enables better interlocking and bonding during subsequent compacting and welding, preventing bubbles and cracks in the final composite interface.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent utilizes curvature by rolling the composite surfaces to form corrugated patterns with specific geometric features. These curved and undulating surface profiles increase the contact area and mechanical interlocking between dissimilar metals, improving bonding reliability while maintaining process simplicity.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Strength

If explosion compositing method is used, then strong interface binding force is achieved, but the composite has smaller size, poor shape, lower yield and causes environmental pollution

Engineering Contradiction:

Improveinterface binding forceVSAvoidyield and shape quality

Core Design Contradiction:

StrengthVSProductivity

Solution Approach 1:

The patent replaces the explosion mechanical system with a controlled rolling and compacting mechanical system. Instead of using high-energy explosion to create bonding, the invention uses progressive mechanical deformation through corrugation rolling and controlled compacting, achieving strong interface binding force while avoiding the harmful effects of explosion and improving yield and shape quality.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If pressure processing compositing is used, then metallurgical bonding is formed, but the bonding interface is complex and cracking occurs due to differences in material mechanical properties

Engineering Contradiction:

Improvemetallurgical bondingVSAvoidbonding interface complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by systematically varying the corrugation geometry parameters (amplitude, wavelength, profile shape) during the rolling process. These parameter adjustments optimize the bonding interface characteristics, allowing metallurgical bonding to occur while simplifying the interface structure and preventing cracking caused by material property differences.

Inventive Principle:

Principle #35Parameter changes

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

This method increases the binding force between metal layers, improves compositing efficiency, and enhances the quality and yield of composite interfaces by eliminating differences in metal plastic performance and reducing oxidation, resulting in a high-quality composite plate/strip with improved mechanical strength.

Implementation Method 1

the distance of contact surfaces of dissimilar metals affected by deforming force during plastic deformation approaches to the thick of an atom

Methodology Applied

Scientific EffectPlastic deformation: Plasticity

Implementation Method 2

Cleaning the composite surfaces of the base plate and the cladding plate to expose the metal matrixes

Methodology Applied

Scientific EffectOxidation removal: Oxidation

Implementation Method 3

compact, welding and sealing, to obtain a composite plate slab

Methodology Applied

Scientific EffectWelding: Welding

Implementation Method 4

diffuse to form steady metallurgical bonding

Methodology Applied

Scientific EffectDiffusion: Diffusion

Data Source

PatentUS10363592B2Method for preparing metal composite plate strip by rolling

Publication Date: 2019.07.30 TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

AI summary

A method for preparing a metal composite plate by rolling includes the following steps: 1) rolling composite surfaces of a base plate and a cladding plate, respectively, to obtain the base plate corrugation and the cladding plate corrugation for mating with each other; 2) cleaning the composite surfaces of the base plate and the cladding plate to expose the metal matrixes of the base plate and the cladding plate; 3) laminating the base plate and the cladding plate sequentially so that the base plate corrugation on the base plate and cladding plate corrugation on the cladding plate mate with each other, compacting, and performing welding sealing treatment to the base plate and the cladding plate to obtain a composite plate slab; and 4) rolling the composite plate slab after inspection by using a compositing machine to a desirable thickness, to obtain a metal composite plate.