Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system

Producing mould tooling systems is a considerable proportion of manufacturing cost and time, especially for low volume productions. Producing a reconfigurable mould to shape surfaces into complex geometries with multiple curvatures would obviate the need to design and fabricate individual moulds for...

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Main Authors: Habibi, Hossein, Land, Patrick, Ball, Michael J., Troncoso, David Alatorre, Branson, David T.
Format: Article
Language:English
English
Published: Elsevier 2018
Subjects:
Online Access:https://eprints.nottingham.ac.uk/50447/
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author Habibi, Hossein
Land, Patrick
Ball, Michael J.
Troncoso, David Alatorre
Branson, David T.
author_facet Habibi, Hossein
Land, Patrick
Ball, Michael J.
Troncoso, David Alatorre
Branson, David T.
author_sort Habibi, Hossein
building Nottingham Research Data Repository
collection Online Access
description Producing mould tooling systems is a considerable proportion of manufacturing cost and time, especially for low volume productions. Producing a reconfigurable mould to shape surfaces into complex geometries with multiple curvatures would obviate the need to design and fabricate individual moulds for different products. Current reconfigurable mould tooling systems are mainly variations on a ‘bed of pins’ design through differing patterns of actuated pins. These systems are heavy, mechanically complex and expensive to manufacture. Soft pneumatic actuators such as Mckibben muscles, also known as pneumatic artificial muscles (PAMs) are recognised for their high strength to weight ratio, ease of manufacture and low cost. In this work, PAMs are used to influence a soft elastomeric surface, allowing the formation of spatial curved profiles. This thin, hollow surface is packed with a granular medium that exhibits jamming under the negative pressure of a vacuum. This allows the flexible surface to transform to a rigid surface of greatly increased stiffness with a specific geometry for moulding purposes. This paper presents the design, experimental development and experimental performance of two sample prototypes to actualizes the idea of such adaptable moulding tools. The prototypes contain different actuator arrangements to form jamming surfaces into diverse, simple-to-complex 3D profiles. In addition, the kinematic performance for one of the prototypes is shown by a numerical model. Future work on this system will tailor it for production of fibre carbon composites.
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spelling nottingham-504472019-03-20T04:30:27Z https://eprints.nottingham.ac.uk/50447/ Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system Habibi, Hossein Land, Patrick Ball, Michael J. Troncoso, David Alatorre Branson, David T. Producing mould tooling systems is a considerable proportion of manufacturing cost and time, especially for low volume productions. Producing a reconfigurable mould to shape surfaces into complex geometries with multiple curvatures would obviate the need to design and fabricate individual moulds for different products. Current reconfigurable mould tooling systems are mainly variations on a ‘bed of pins’ design through differing patterns of actuated pins. These systems are heavy, mechanically complex and expensive to manufacture. Soft pneumatic actuators such as Mckibben muscles, also known as pneumatic artificial muscles (PAMs) are recognised for their high strength to weight ratio, ease of manufacture and low cost. In this work, PAMs are used to influence a soft elastomeric surface, allowing the formation of spatial curved profiles. This thin, hollow surface is packed with a granular medium that exhibits jamming under the negative pressure of a vacuum. This allows the flexible surface to transform to a rigid surface of greatly increased stiffness with a specific geometry for moulding purposes. This paper presents the design, experimental development and experimental performance of two sample prototypes to actualizes the idea of such adaptable moulding tools. The prototypes contain different actuator arrangements to form jamming surfaces into diverse, simple-to-complex 3D profiles. In addition, the kinematic performance for one of the prototypes is shown by a numerical model. Future work on this system will tailor it for production of fibre carbon composites. Elsevier 2018-03-20 Article PeerReviewed application/pdf en cc_by_nc_nd https://eprints.nottingham.ac.uk/50447/8/Recfg%20integrated%20surface%20-%20revised.pdf application/pdf en https://eprints.nottingham.ac.uk/50447/1/JMP_905_Final_PDF.pdf Habibi, Hossein, Land, Patrick, Ball, Michael J., Troncoso, David Alatorre and Branson, David T. (2018) Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system. Journal of Manufacturing Processes, 32 . pp. 241-253. ISSN 1878-6642 Reconfigurable mould vacuum jammed surface pneumatic artificial muscle soft tooling https://www.sciencedirect.com/science/article/pii/S1526612518300641 doi:10.1016/j.jmapro.2018.02.013 doi:10.1016/j.jmapro.2018.02.013
spellingShingle Reconfigurable mould
vacuum jammed surface
pneumatic artificial muscle
soft tooling
Habibi, Hossein
Land, Patrick
Ball, Michael J.
Troncoso, David Alatorre
Branson, David T.
Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system
title Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system
title_full Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system
title_fullStr Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system
title_full_unstemmed Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system
title_short Optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system
title_sort optimal integration of pneumatic artificial muscles with vacuum-jammed surfaces to characterise a novel reconfigurable moulding system
topic Reconfigurable mould
vacuum jammed surface
pneumatic artificial muscle
soft tooling
url https://eprints.nottingham.ac.uk/50447/
https://eprints.nottingham.ac.uk/50447/
https://eprints.nottingham.ac.uk/50447/