Curve Folding of Sheet Material Into 3D Shapes Without Welding

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Solution Overview

Problem

Conventional methods for bending or folding two-dimensional sheet materials into three-dimensional shapes are limited, requiring multiple parts and welding, and cannot incorporate volumes without additional folds, restricting design and material usage.

Innovation Solution

A method using a computer device to define primary and secondary surfaces and create digital instructions for curve folding, allowing a two-dimensional sheet to be folded into a three-dimensional shape without piecing together multiple parts, using industrial robots for implementation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional methods are used to fold sheet material into three-dimensional shapes, then the material can be processed using traditional tools and techniques, but the objects must be pieced together from multiple parts requiring welding and additional folds

Engineering Contradiction:
Improvemanufacturing processVSAvoidnumber of parts
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent merges multiple separate parts into a single continuous sheet material structure. By using fully developed spreading with curve folds, the entire three-dimensional object is formed from one piece of sheet material without requiring welding or assembly of multiple components, thus reducing device complexity while maintaining ease of manufacture

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from conventional one-dimensional folding to two-dimensional curve folding across the sheet surface. This dimensional change allows volumes to be incorporated without additional folds by utilizing curved paths in the spreading plane, enabling complex three-dimensional shapes to be formed from a single continuous piece

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If conventional folding methods are used, then the manufacturing process is simple and straightforward, but volumes cannot be incorporated without additional folds

Engineering Contradiction:
Improveobject volumeVSAvoidmanufacturing steps
Core Design Contradiction:
Volume of moving objectVSProductivity

Solution Approach 1:

The patent introduces curve folds that operate in two dimensions across the sheet surface rather than simple one-dimensional folds. This allows volumetric shapes to be created by utilizing curved paths in the spreading plane, incorporating volumes without requiring additional folding operations and thus maintaining productivity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent employs curved fold lines instead of straight lines to create volumetric three-dimensional objects. The curvature of the fold lines allows the sheet material to form rounded, volumetric shapes while maintaining a single continuous structure without requiring additional folds or assembly steps

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Adaptability or versatility

If multiple parts are used to construct three-dimensional objects, then design flexibility is limited by the need to piece and weld parts together, but conventional tools can be used

Engineering Contradiction:
Improvedesign flexibilityVSAvoidmanufacturing process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent combines multiple parts into a single continuous sheet structure, dramatically increasing design flexibility. The fully developed spreading method allows complex three-dimensional shapes to be formed from one piece of material without welding or assembly, enabling greater adaptability while maintaining ease of manufacture through automated robotic folding

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent uses two-dimensional curve folding across the sheet surface to achieve design flexibility previously requiring multiple parts. The curved paths in the spreading plane enable complex geometries and volumetric shapes to be created from a single continuous piece, providing adaptability without complicating the manufacturing process

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20230084080A1Non-transitory computer-readable medium comprising executable instructions for use in computer devices and industrial robots used in material processing of a two- dimensional sheet like material
Publication Date: 2023.03.16 STILFORD AB
  • US20230084080A1 patent drawing
  • US20230084080A1 patent drawing
  • US20230084080A1 patent drawing

AI summary

The present disclosure generally relates to material processing of a two-dimensional sheet like material into a desired three-dimensional shape object. In more detail, this disclosure inter alia presents a non-transitory computer-readable medium comprising executable instructions for use in material processing of a two-dimensional sheet like material using a computer device.