Computational laser forming origami of convex surfaces

Yue, Hao; Lien, Jyh-Ming

doi:10.1145/3328939.3329006

Cited by 13 publications

(17 citation statements)

References 23 publications

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“…Such methods include pre-bending the metal sheet [52,59], or through judicious choice of the lasing parameters [60,61]. The ability to generate bidirectional bending expands the design space for laser forming [62,63], without the need for human input, i.e., flipping the work piece [50]. As bending with the buckling mechanism can occur both toward and away from the laser, there can be some ambiguity which mechanism is occurring.…”

Section: Buckling Mechanism (Bm)mentioning

confidence: 99%

“…Critical to the broad adoption of laser forming for rapid prototyping is developing a similar software structure that can convert a CAD file into a path planning program, which also calculates the appropriate lasing setting to produce the desired 3D object without human intervention. Extensive research efforts have been undertaken to achieve this goal, with recent results suggesting that this goal might be realized soon [62]. object without human intervention.…”

Section: Laser Forming For Rapid Prototypingmentioning

confidence: 99%

“…object without human intervention. Extensive research efforts have been undertaken to achieve this goal, with recent results suggesting that this goal might be realized soon [62]. Comparison of workflows for (a) conventional 3D printing [19] showing the slicer and path planner, compared to (b) proposed workflow for the automated laser forming of arbitrary convex polyhedra.…”

Section: Laser Forming For Rapid Prototypingmentioning

confidence: 99%

“…Part of the difficulty of designing laser scan strategies is the highly-coupled and nonlinear thermo-mechanical nature of laser forming, so many of the previously proposed strategies are limited in the number of scan lines [66,99,150] or are computationally intensive, relying on full finite-element models [148,149]. Recently, researchers introduced an algorithm that takes a desired 3D structure as an input, and simultaneously unfolds the structure into a planar net and plans the cutting and bending paths for this net [62]. For normal origami, the planar net and the bending path can be solved for separately, because the craftsmen is able to access all needed fold lines at any given time [6].…”

Section: Quantum Beam Sci 2020 4 X For Peer Reviewmentioning

confidence: 99%

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Making Light Work of Metal Bending: Laser Forming in Rapid Prototyping

Bachmann

Dickey

Lazarus

2020

QuBS

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Lasers can be used to bend 2D metal sheets into complex 3D objects in a process called ‘laser forming.’ Laser forming bends metal sheets by locally heating the sheets to generate plastic strains and is an established metal bending technology in the shipbuilding industry. Recent studies have investigated the laser forming of thin metal parts as a complementary rapid prototyping technology to metal 3D printing. This review discusses the laser forming process, beginning with the mechanisms before covering various design considerations. Laser forming for the rapid manufacturing of metal parts is then reviewed, including the recent advances in process planning, before highlighting promising future research directions.

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Section: Buckling Mechanism (Bm)mentioning

confidence: 99%

Section: Laser Forming For Rapid Prototypingmentioning

confidence: 99%

Section: Laser Forming For Rapid Prototypingmentioning

confidence: 99%

Section: Quantum Beam Sci 2020 4 X For Peer Reviewmentioning

confidence: 99%

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Making Light Work of Metal Bending: Laser Forming in Rapid Prototyping

Bachmann

Dickey

Lazarus

2020

QuBS

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“…In consideration of origami structures being constructed by cutting and bending, an origami forming system with an automatic laser is proposed [16][17][18]. However, the forming system is so expensive and so complicated that it is difficult to be applied for the origami structure of metal plates.…”

Section: Introductionmentioning

confidence: 99%

Reversed-Torsion-Type Crush Energy Absorption Structure and Its Inexpensive Partial-Heating Torsion Manufacturing Method Based on Origami Engineering

Zhao

Kong²,

Yang

et al. 2021

Journal of Manufacturing Science and Engineering

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Current vehicle energy absorbers face two problems during a collision in that there is only a 70% collapse in length and there is a high initial peak load. These problems arise because the presently used energy-absorbing column is primitive from the point of view of origami. We developed a column called the Reversed Spiral Origami Structure (RSO), which solves the above two problems. However, in the case of existing technology of the RSO, the molding cost of hydroforming is too expensive for application to a real vehicle structure. We therefore conceive a new structure, named the Reversed Torsion Origami Structure (RTO), which has excellent energy absorption in simulation. We can thus develop a manufacturing system for the RTO cheaply. Excellent results are obtained in a physical experiment. The RTO can replace conventional energy absorbers and is expected to be widely used in not only automobile structures but also building structures.

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Self-Folding PCB Kirigami: Rapid Prototyping of 3D Electronics via Laser Cutting and Forming

Bachmann

Hanrahan

Dickey

et al. 2022

ACS Appl. Mater. Interfaces

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This paper demonstrates laser forming, localized heating with a laser to induce plastic deformation, can self-fold 2D printed circuit boards (PCBs) into 3D structures with electronic function. There are many methods for self-folding but few are compatible with electronic materials. We use a low-cost commercial laser writer to both cut and fold a commercial flexible PCB. Laser settings are tuned to select between cutting and folding with higher power resulting in cutting and lower power resulting in localized heating for folding into 3D shapes. Since the thin copper traces used in commercial PCBs are highly reflective and difficult to directly fold, two approaches are explored for enabling folding: plating with a nickel/gold coating or using a single, high-power laser exposure to oxidize the surface and improve laser absorption. We characterized the physical effect of the exposure on the sample as well as the fold angle as a function of laser passes and demonstrate the ability to lift weights comparable with circuit packages and passive components. This technique can form complex, multifold structures with integrated electronics; as a demonstrator, we fold a commercial board with a common timing circuit. Laser forming to add a third dimension to printed circuit boards is an important technology to enable the rapid prototyping of complex 3D electronics.

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Computational laser forming origami of convex surfaces

Cited by 13 publications

References 23 publications

Making Light Work of Metal Bending: Laser Forming in Rapid Prototyping

Making Light Work of Metal Bending: Laser Forming in Rapid Prototyping

Reversed-Torsion-Type Crush Energy Absorption Structure and Its Inexpensive Partial-Heating Torsion Manufacturing Method Based on Origami Engineering

Self-Folding PCB Kirigami: Rapid Prototyping of 3D Electronics via Laser Cutting and Forming

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