Sheet Reshaping With Transverse Pressing for 3D Forming
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Solution Overview
Problem
Conventional methods for bending sheet materials are limited to one-dimensional deformation, requiring multiple components and welding for three-dimensional objects, constraining material use and design.
Innovation Solution
A method involving a primary and secondary side pressing device that applies forces transversally to the operational direction for plastic deformation, allowing complex shapes to be formed with reduced components and energy consumption, and enabling automation and customization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional one-dimensional bending methods are used, then the bending process is simple, but the ability to create complex three-dimensional shapes is limited
Solution Approach 1:
The patent applies two-dimensional plastic deformation by applying forces in directions transverse to the operational direction, enabling complex three-dimensional shapes to be created from sheet material in a single continuous process rather than through sequential one-dimensional bending operations
Solution Approach 2:
The bending process is segmented into independent force application zones along the operational direction, allowing different regions of the workpiece to undergo deformation simultaneously without interfering with each other, thus enabling complex shaping while maintaining process simplicity
2Device complexity
If conventional one-dimensional bending methods are used, then the bending equipment is simple, but the number of components and welding operations required increases
Solution Approach 1:
Multiple bending operations that would traditionally require separate components and welding steps are merged into a single continuous plastic deformation process, creating complex three-dimensional shapes from monolithic sheet material without joints or assemblies
3Ease of manufacture
If conventional sequential folding methods are used, then the manufacturing process is straightforward, but material usage efficiency decreases
Solution Approach 1:
The sheet material is pre-formed with appropriate geometry and features before the plastic deformation process, allowing the material to be efficiently shaped into complex three-dimensional forms with minimal waste, eliminating the need for cutting out individual pieces and reducing material loss
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
Facilitates the creation of complex shapes with fewer components, low power consumption, and high automation, suitable for both large and small series production.
Implementation Method 1
plastically deforming the workpiece in a plane that extends transversally to the operational direction by means of forces applied to the workpiece by at least one of the pressing devices
Data Source
Figure 1
Figure 2~3
Figure 4~6a
AI summary
An arrangement (1) for reshaping a workpiece (90). The workpiece (90) and/or the arrangement (1) is/are movable with respect to one another to obtain a mutual linear movement between the workpiece (90) and the arrangement (1) along an operational direction (Y'). The arrangement (1) comprises: a primary side pressing device (10) adapted to be arranged on a primary side (90a) of the workpiece (90), the primary side pressing device (10) comprising a primary contact surface (14) for applying a force to the workpiece (90), and a secondary side pressing device (20) adapted to be arranged on a secondary side (90b) of the workpiece (90), the secondary side pressing device (20) comprising two secondary contact surfaces (24', 24") for applying forces to the workpiece (90), wherein, as seen in the operational direction (Y'), the primary contact surface (14) is positioned between at least portions of the secondary contact surfaces (24', 24") such that the workpiece (90) may be deformed (140) transversally to the operational direction (Y').