Mass production strategy for additive manufacturing by stacking the product at design phase

Additive Manufacturing (AM) brought a revolution in parts design and production. It enables the possibility to obtain objects with complex geometries and to exploit structural optimization algorithms. Nevertheless, AM is far from being a mature technology and advances are still needed from different perspectives. Among these, the literature highlights the need of improving the frameworks that describe the design process and taking full advantage of the possibilities offered by AM. This work aims to propose a workflow for AM guiding the designer during the embodiment design phase, from the engineering requirements to the production of the final part. The main aspects are the optimization of the dimensions and the topology of the parts, to take into consideration functional and manufacturing requirements, and to validate the geometric model by computer-aided engineering software. Moreover, a case study dealing with the redesign of a piston rod is presented, in which the proposed workflow is adopted. Results show the effectiveness of the workflow when applied to cases in which structural optimization could bring an advantage in the design of a part and the pros and cons of the choices made during the design phases were highlighted.

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Upscaling production of droplets and magnetic particles with additive manufacturing

Rapid Prototyping Journal ◽

10.1108/rpj-12-2020-0320 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Donatien Mottin ◽

Tsaihsing Martin Ho ◽

Peichun Amy Tsai

Keyword(s):

Additive Manufacturing ◽

Mass Production ◽

Magnetic Particles ◽

Chemical Engineering ◽

Three Dimensional ◽

Technical Difficulty ◽

Immiscible Liquid ◽

Magnetic Microspheres ◽

Produce Water ◽

Content Type

Purpose Monodisperse microfluidic emulsions – droplets in another immiscible liquid – are beneficial to various technological applications in analytical chemistry, material and chemical engineering, biology and medicine. Upscaling the mass production of micron-sized monodisperse emulsions, however, has been a challenge because of the complexity and technical difficulty of fabricating or upscaling three-dimensional (3 D) microfluidic structures on a chip. Therefore, the authors develop a fluid dynamical design that uses a standard and straightforward 3 D printer for the mass production of monodisperse droplets. Design/methodology/approach The authors combine additive manufacturing, fluid dynamical design and suitable surface treatment to create an easy-to-fabricate device for the upscaling production of monodisperse emulsions. Considering hydrodynamic networks and associated flow resistance, the authors adapt microfluidic flow-focusing junctions to produce (water-in-oil) emulsions in parallel in one integrated fluidic device, under suitable flow rates and channel sizes. Findings The device consists of 32 droplet-makers in parallel and is capable of mass-producing 14 L/day of monodisperse emulsions. This convenient method can produce 50,000 millimetric droplets per hour. Finally, the authors extend the current 3 D printed fluidics with the generated emulsions to synthesize magnetic microspheres. Originality/value Combining additive manufacturing and hydrodynamical concepts and designs, the authors experimentally demonstrate a facile method of upscaling the production of useful monodisperse emulsions. The design and approach will be beneficial for mass productions of smart and functional microfluidic materials useful in a myriad of applications.

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Contrasting Function With Affordance in Design for Additive Manufacturing

Volume 1: 37th Computers and Information in Engineering Conference ◽

10.1115/detc2017-68157 ◽

2017 ◽

Cited By ~ 1

Author(s):

Hyunwoong Ko ◽

Seung Ki Moon

Keyword(s):

Additive Manufacturing ◽

Engineering Design ◽

Conceptual Design ◽

Design Method ◽

Design Stage ◽

Design Phase ◽

Conceptual Design Phase ◽

User Centric ◽

Design Freedom ◽

Mass Personalization

Additive Manufacturing (AM)’s advance from rapid prototyping to the end-of-use products inevitably challenges conventional design theories and methodologies. Especially while adopting systematic engineering design methodologies to design for AM (DfAM), it is essential to develop new design methods that explore the new design space enabled by AM’s design freedom from the early design stage. To address the challenge, this study provides a new design framework and a design method for modeling AM-enabled product behaviors in the conceptual design phase of DfAM. Firstly, this study contrasts function-based methods with affordance-based methods. The device-centric, form independent and input/output-based transformative properties of the function-based methods such as function decompositions have strengths in modeling product’s internal behaviors. However, the function-based methods show limitations in the new area of AM-enabled mass personalization which requires design approaches for representing user-centric structural design requirements acquired only by AM’s design freedom. On the other hand, the affordance-based methods can address the function-based methods in DfAM due to their user-centric (artifact-user interactive), form dependent and non-transformative properties. After the contradiction, we propose an affordance-based DfAM framework and an affordance structure as a formal modeling technique for AM-enabled personalized product behaviors. A case study of a trans-tibial prosthesis socket provides an illustration in this study. The contribution of the study is in developing a design method for the conceptual design phase of DfAM that fulfills the objectives of achieving AM-enabled mass personalization with systematic engineering design approaches.

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Additive Manufacturing of Tooling for Use in Mass Production Processes

Polymer-Based Additive Manufacturing ◽

10.1007/978-3-030-24532-0_4 ◽

2019 ◽

pp. 73-96

Author(s):

Suzan Gunbay ◽

Michael Hopkins ◽

Guang Hu ◽

Noel M. Gately ◽

Declan M. Devine ◽

...

Keyword(s):

Additive Manufacturing ◽

Mass Production ◽

Production Processes

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A Low-Cost Environmental Monitoring System: How to Prevent Systematic Errors in the Design Phase through the Combined Use of Additive Manufacturing and Thermographic Techniques

Sensors ◽

10.3390/s17040828 ◽

2017 ◽

Vol 17 (4) ◽

pp. 828 ◽

Cited By ~ 8

Author(s):

Francesco Salamone ◽

Ludovico Danza ◽

Italo Meroni ◽

Maria Pollastro

Keyword(s):

Additive Manufacturing ◽

Environmental Monitoring ◽

Monitoring System ◽

Low Cost ◽

Systematic Errors ◽

Design Phase ◽

Combined Use ◽

Environmental Monitoring System

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Assessing the Design Innovation Potential of Timber Prefabricated Housing Through Axiomatic Design

Volume 15: Advances in Multidisciplinary Engineering ◽

10.1115/imece2015-50517 ◽

2015 ◽

Cited By ~ 1

Author(s):

Marianna Marchesi ◽

Sang-Gook Kim ◽

Dominik T. Matt

Keyword(s):

Mass Production ◽

Ad Hoc ◽

Axiomatic Design ◽

Building Design ◽

Building Industry ◽

Design Phase ◽

Design Decisions ◽

Innovation Potential ◽

Timber Construction ◽

Conceptual Design Phase

Despite the current building sector slowdown in Italy, timber housing industry market is growing. But its growth has been limited mainly by the high costs of ad-hoc full-customized buildings and the lack of customer appreciation for mass-produced buildings. In order to satisfy the current demand for affordable customized housing, building industry should focus on solutions based on the combination of personalized and mass-produced parts. In this way, clients would have the chance to personalize crucial parts, and building industry can limit costs by the mass-production of the others. This combination between mass production and customization involves artefact flexibility and robustness with regard to the designer’s viewpoint. These requirements are set in the conceptual design phase, but in this stage architect’s decision making is not adequately supported. Since Axiomatic Design (AD) is able to support the analysis of designs with respect to the specified requirements, AD is applied to the review of prefabricated housing archetypes and current timber construction systems. This study shows the effectiveness of applying AD to prefabricated building design: crucial design decisions that affect the specified requirements are identified; inputs limiting their fulfilment in the timber building prefabrication are highlighted, and recommendations for developing adequate systems are provided.

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The Essential Facts of Wuhan Novel Coronavirus Outbreak in China and Epitope-based Vaccine Designing against COVID-19

10.1101/2020.02.05.935072 ◽

2020 ◽

Cited By ~ 3

Author(s):

Bishajit Sarkar ◽

Md. Asad Ullah ◽

Fatema Tuz Johora ◽

Masuma Afrin Taniya ◽

Yusha Araf

Keyword(s):

Mass Production ◽

Docking Study ◽

Dynamics Simulation ◽

Definitive Treatment ◽

Biological Stability ◽

Molecular Docking Study ◽

Subunit Vaccines ◽

Infected People ◽

Production Strategy ◽

Novel Coronavirus

AbstractWuhan Novel Coronavirus disease (COVID-19) outbreak has become a global outbreak which has raised the concern of scientific community to design and discover a definitive cure against this deadly virus which has caused deaths of numerous infected people upon infection and spreading. To date, no antiviral therapy or vaccine is available which can effectively combat the infection caused by this virus. This study was conducted to design possible epitope-based subunit vaccines against the SARS-CoV-2 virus using the approaches of reverse vaccinology and immunoinformatics. Upon continual computational experimentation three possible vaccine constructs were designed and one vaccine construct was selected as the best vaccine based on molecular docking study which is supposed to effectively act against SARS-CoV-2. Later, molecular dynamics simulation and in silico codon adaptation experiments were carried out in order to check biological stability and find effective mass production strategy of the selected vaccine. Hopefully, this study will contribute to uphold the present efforts of the researches to secure a definitive treatment against this lethal virus.

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Adding Brand: Design, Branding and Additive Manufacture in the production of tangible prosthetic products.

10.26686/wgtn.14385824 ◽

2021 ◽

Author(s):

Matt Mcgowan

Keyword(s):

Additive Manufacturing ◽

Mass Production ◽

Industry 4.0 ◽

Design Research ◽

Artificial Limbs ◽

Additive Manufacture ◽

Prosthetic Design ◽

Below The Knee ◽

3D Printed ◽

The Creation

Design, Branding and Additive Manufacture in the production of tangible prosthetic products. For the New Zealand Artificial Limbs Service, (NZALS) prosthetic design has skipped the mechanisation and mass production paradigm seen in the automation of consumer production. This industry predominantly uses traditional hand fabrication methods to produce prosthetics as a one-off appendage. This research asks; how can design communicate the possibilities of Additive Manufacture? This research addresses the creation of branded designed products for the NZALS, and as a result, exposes the predominantly service based industry of the NZALS to a product focused methodology through traditional industrial design practices. This has been achievable by investigating emerging platforms of manufacturing in both Digital and Additive Manufacturing (3D printing), with the development of the designs in this research focused on brand, client and company identity. This focus addresses the integration of an Industry 4.0 model in favour of the amputee client, and realises future outlooks of prosthetic production envisioned by the NZLAS. Design research in this thesis has seen the creation of two prosthetic products. Firstly, a below-the- knee Prosthetic Fairing (Easycover), and secondly, a fully 3D printed below-the- knee prosthetic (Easylimb). The research undertaken shows the importance of creating tangible and readymade products to allow the NZALS, it’s staff and amputee clientele, to understand the benefits of design, branding, and emerging platforms of manufacture in the production of prosthetic diversity.

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