Multi-Layer Shaped Parts with Integrated Plating and Forming

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Solution Overview

Problem

Current methods for producing molded parts with multiple layers are complex and require separate steps for cladding and forming, limiting efficiency and flexibility in material selection and thickness ratios.

Innovation Solution

A method that integrates cladding and forming of sheet metal materials in a single work step using flow-forming, spinning, or deep-drawing processes, allowing for simultaneous plating and shaping without the need for hot rolling, enabling individualized production of molded parts with varying layer thicknesses and materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate steps for cladding and forming are used, then secure bonding between layers is achieved, but production complexity and time increase

Engineering Contradiction:
Improvebonding qualityVSAvoidprocess complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines cladding and forming operations into a single integrated process step. The cladding unit applies coating material to the substrate while the forming unit simultaneously shapes the substrate, eliminating the need for separate cladding and forming steps. This merging reduces production complexity while maintaining secure bonding between layers through the coordinated action of both units.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If separate steps for cladding and forming are used, then secure bonding between layers is achieved, but production time increases

Engineering Contradiction:
Improvebonding qualityVSAvoidproduction speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent implements continuous simultaneous operation of cladding and forming processes. While the forming unit shapes the substrate continuously, the cladding unit continuously applies coating material to the substrate surface. This continuous parallel execution of both operations eliminates idle time between steps and maintains high production speed while ensuring secure bonding.

Inventive Principle:
Principle #20Continuity of useful action

3Reliability

If hot rolling process is used for cladding, then material bonding is achieved, but process complexity and energy consumption increase

Engineering Contradiction:
Improvematerial bondingVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent replaces the thermal-mechanical hot rolling process with a cold-process cladding unit that applies coating material directly to the substrate. Instead of using high temperature and pressure from hot rolling, the invention uses a cladding unit with coating material application and bonding agents to achieve material bonding at lower energy consumption, maintaining bonding reliability through chemical and mechanical adhesion mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If fixed layer arrangements are used in coil, then production efficiency is maintained, but flexibility in material selection and thickness ratios decreases

Engineering Contradiction:
Improveproduction efficiencyVSAvoidmaterial flexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic cladding system where the cladding unit can be adjusted during operation to apply different coating materials and thicknesses based on the specific substrate being processed. The control system allows real-time modification of cladding parameters, enabling flexible material selection and thickness ratio adjustment while maintaining continuous production efficiency, unlike fixed pre-assembled coil structures.

Inventive Principle:
Principle #15Dynamics

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 approach simplifies and accelerates the production of molded parts, allowing for easier individualization and flexibility in material selection, while eliminating the need for complex hot rolling processes and ensuring secure bonding between layers.

Implementation Method 1

creating a material bond between the first and at least the second layer through mechanical action, for example by rolling

Methodology Applied
Scientific EffectMechanical bonding: Mechanical Force

Implementation Method 2

the first layer and/or the at least second layer of sheet metal materials to be heated for plating

Methodology Applied
Scientific EffectThermal heating: Heating

Data Source

PatentEP3337629B1Method for producing a shaped part
Publication Date: 2022.10.05 THYSSENKRUPP AG
  • EP3337629B1 patent drawingFigure 1~2d
  • EP3337629B1 patent drawingFigure 3a~3e

AI summary

The invention proposes a method for producing a shaped part, comprising the following method steps: -- providing a first layer (1) consisting of a first sheet metal material and at least one second layer (2) consisting of a second sheet metal material, -- building a preliminary composite comprising the first (1) and the at least second layer (2), -- plating the preliminary composite, -- forming the preliminary composite to obtain the shaped part using a flow-turning, compression or deep-drawing method, the plating taking place before or during the forming process.