Methodology for Design Process of Internal Supported Cylindrical Thin Shell Made by Additive Manufacturing

2021 ◽  
Vol 5 (1) ◽  
pp. 20200074
Author(s):  
Heye Xiao ◽  
Ruobing Wang ◽  
Xuefeng Li ◽  
Qi Zhang ◽  
Xudong Zhang ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Design Process ◽  
Thin Shell

scholarly journals REVIEW OF DESIGN HEURISTICS AND DESIGN PRINCIPLES IN DESIGN FOR ADDITIVE MANUFACTURING

2021 ◽  
Vol 1 ◽  
pp. 2571-2580
Author(s):  
Filip Valjak ◽  
Angelica Lindwall
Keyword(s):  
Additive Manufacturing ◽  
Design Process ◽  
Research Question ◽  
Design Principles ◽  
Current Status ◽  
Design For Additive Manufacturing ◽  
Design Heuristics ◽  
Similarities And Differences ◽  
Definition Of ◽  
Support Methods

AbstractThe advent of additive manufacturing (AM) in recent years have had a significant impact on the design process. Because of new manufacturing technology, a new area of research emerged – Design for Additive Manufacturing (DfAM) with newly developed design support methods and tools. This paper looks into the current status of the field regarding the conceptual design of AM products, with the focus on how literature sources treat design heuristics and design principles in the context of DfAM. To answer the research question, a systematic literature review was conducted. The results are analysed, compared and discussed on three main points: the definition of the design heuristics and the design principles, level of support they provide, as well as where and how they are used inside the design process. The paper highlights the similarities and differences between design heuristics and design principles in the context of DfAM.

Design and Analysis of Hybrid Fused Filament Fabrication Apparatus for Fabrication of Composites

2021 ◽  
Vol 14 ◽  
Author(s):  
Aniket Yadav ◽  
Piyush Chohan ◽  
Ranvijay Kumar ◽  
Jasgurpreet Singh Chohan ◽  
Raman Kumar
Keyword(s):  
Additive Manufacturing ◽  
Composite Materials ◽  
Design Process ◽  
Low Cost ◽  
Matrix Material ◽  
Fabrication Process ◽  
Layer By Layer ◽  
Fused Filament Fabrication ◽  
Composite Manufacturing ◽  
Tool Paths

Background: Additive manufacturing is the most famous technology which requires materials or composites to be fabricated with layer by layer deposition strategy. Due to its lower cost, higher accuracy and less material wastage; this technology is used in almost every sector. But in many applications there is a need to alter the properties of a product in a certain direction with the help of some reinforcements. With the use of reinforcements, composite layers can be fabricated using additive manufacturing technique which will enhance the directional properties. A novel apparatus is designed to spray the reinforcement material into the printed structures in a very neat and precise manner. This spray nozzle is fully automated, which works according to tool-paths generated by slicing software. The alternate deposition of layers of reinforcement and build materials helped to fabricate customized composite products. Objective: The objective of present study is to design and analyze the working principle of novel technique which has been developed to fabricate composite materials using additive manufacturing. The apparatus is numerically controlled by computer according to CAD data which facilitates the deposition of alternate layers of reinforcement and matrix material. The major challenges during the design process and function of each component has been explored. Methods: The design process is initiated after comprehensive literature review performed to study previous composite manufacturing processes. The recent patents published by different patent offices of the world are studied in detail and analysis has been used to design a low cost composite fabrication apparatus. A liquid dispensing device comprises a storage tank attached with a pump and microprocessor. The microprocessor receives the signal from the computer as per tool paths generated by slicing software which decides the spray of reinforcements on polymer layers. The spraying apparatus moves in coordination with the primary nozzle of the Fused Filament Fabrication process. Results: The hybridization of Fused Filament Fabrication [process with metal spray process has been successfully performed. The apparatus facilitates the fabrication of low cost composite materials along with flexibility of complete customization of composite manufacturing process. The anisotropic behaviour of products can be easily controlled and managed during fabrication which can be used for different applications.

Enhancing Creative Redesign through Multi-Modal Design Heuristics for Additive Manufacturing

2021 ◽  
pp. 1-52
Author(s):  
Alexandra Bloesch-Paidosh ◽  
Kristina Shea
Keyword(s):  
Additive Manufacturing ◽  
Design Process ◽  
User Studies ◽  
Novice User ◽  
Design Heuristics ◽  
Industrial Setting ◽  
Derived Design ◽  
Mind Set ◽  
Future Work ◽  
Early Phases

Abstract When designing for Additive Manufacturing (AM), designers often need assistance in breaking out of their conventional manufacturing mind-set. Previously, Blösch-Paidosh and Shea (2019) derived Design Heuristics for AM (DHAM) to assist designers in doing this during the early phases of the design process. This work proposes a set of 25 multi-modal cards and objects to accompany each of the Design Heuristics for AM and studies their effect through a series of controlled, novice user studies conducted using both teams and individuals who redesign a city E-Bike. The resulting AM concepts are analyzed in terms of the quantity of design modifications relevant for AM, AM-flexibility, novelty, and variety. It is found that the DHAM cards and objects increase the inclusion of AM concepts, AM modifications, and the unique capabilities of AM in the concepts generated by both individuals and teams. They also increase the creativity of the concepts generated by both individuals and teams, as measured through a series of defined metrics. Further, the objects in combination with the cards are more effective at stimulating the generation of a wider variety of designs than the cards alone. Future work will focus on studying the use of the DHAM cards and objects in an industrial setting.

Pilot study describing the design process of an oil sump for a competition vehicle by combining additive manufacturing and carbon fibre layers

2015 ◽  
Vol 10 (3) ◽  
pp. 149-162 ◽  
Author(s):  
Aitor Cazón ◽  
Jorge G. Prada ◽  
Eric García ◽  
Gorka S. Larraona ◽  
Sergio Ausejo
Keyword(s):  
Additive Manufacturing ◽  
Pilot Study ◽  
Carbon Fibre ◽  
Design Process

LATTICE STRUCTURE OPTIMIZATION WITH ORIENTATION-DEPENDENT MATERIAL PROPERTIES

2021 ◽  
pp. 1-33
Author(s):  
Conner Sharpe ◽  
Carolyn Seepersad
Keyword(s):  
Additive Manufacturing ◽  
Design Process ◽  
Material Properties ◽  
Computational Models ◽  
Lattice Structure ◽  
Lattice Structures ◽  
Performance Improvements ◽  
Structural Applications ◽  
Manufacturing Techniques ◽  
And Performance

Abstract Advances in additive manufacturing techniques have enabled the production of parts with complex internal geometries. However, the layer-based nature of additive processes often results in mechanical properties that vary based on the orientation of the feature relative to the build plane. Lattice structures have been a popular design application for additive manufacturing due to their potential uses in lightweight structural applications. Many recent works have explored the modeling, design, and fabrication challenges that arise in the multiscale setting of lattice structures. However, there remains a significant challenge in bridging the simplified computational models used in the design process and the more complex properties actually realized in fabrication. This work develops a design approach that captures orientation-dependent material properties that have been observed in metal AM processes while remaining suitable for use in an iterative design process. Exemplar problems are utilized to investigate the potential design changes and performance improvements that can be attained by taking the directional dependence of the manufacturing process into account in the design of lattice structures.

Design of Prosthetic Heart Valve and Application of Additive Manufacturing

2021 ◽  
pp. 482-491
Author(s):  
Dheeman Bhuyan
Keyword(s):  
Additive Manufacturing ◽  
Heart Valve ◽  
Design Process ◽  
Prosthetic Heart Valve ◽  
Animal Tissue ◽  
Heart Valve Prostheses ◽  
Mechanical Valves ◽  
Valve Prostheses

Heart valve prostheses are well known and can be classified in two major types or categories: biological and mechanical. Biological valves (i.e., Homografts and Heterografts) make use of animal tissue as the valving mechanism whereas mechanical valves make use of balls, disks, and other mechanical valving mechanism. Mechanical valves carry considerable risk and require lifelong medication. The design of these valves is usually done on a “one size fits all” basis, with only the diameter changing depending on the model being produced. The author seeks to present an application of additive manufacturing in the design process for mechanical valves. This is expected to provide patients with customized prostheses to match their physiology and reduce the risk associated with the implantation.

Lattice Structure Optimization With Orientation-Dependent Material Properties

2020 ◽  
Author(s):  
Conner Sharpe ◽  
Carolyn Conner Seepersad
Keyword(s):  
Additive Manufacturing ◽  
Design Process ◽  
Material Properties ◽  
Computational Models ◽  
Lattice Structure ◽  
Lattice Structures ◽  
Performance Improvements ◽  
Structural Applications ◽  
Manufacturing Techniques ◽  
And Performance

Abstract Advances in additive manufacturing techniques have enabled the production of parts with complex internal geometries. However, the layer-based nature of additive processes often results in mechanical properties that vary based on the orientation of the feature relative to the build plane. Lattice structures have been a popular design application for additive manufacturing due to their potential uses in lightweight structural applications. Many recent works have explored the modeling, design, and fabrication challenges that arise in the multiscale setting of lattice structures. However, there remains a significant challenge in bridging the simplified computational models used in the design process and the more complex properties actually realized in fabrication. This work develops a design approach that captures orientation-dependent material properties that have been observed in metal AM processes while remaining suitable for use in an iterative design process. Exemplar problems are utilized to investigate the potential design changes and performance improvements that can be attained by taking the directional dependence of the manufacturing process into account in the design of lattice structures.

Building free-form thin shell parts using supportless extrusion-based additive manufacturing

2020 ◽  
Vol 32 ◽  
pp. 101003 ◽  
Author(s):  
Prahar M. Bhatt ◽  
Rishi K. Malhan ◽  
Pradeep Rajendran ◽  
Satyandra K. Gupta
Keyword(s):  
Additive Manufacturing ◽  
Thin Shell ◽  
Free Form

Design Considerations for Hybridizing Additive Manufacturing and Direct Write Technologies

2014 ◽  
Author(s):  
K. Blake Perez ◽  
Christopher B. Williams
Keyword(s):  
Additive Manufacturing ◽  
Design Process ◽  
Manufacturing Process ◽  
Layer By Layer ◽  
Direct Write ◽  
Systematic Design ◽  
Flexible Polymers ◽  
Conductive Materials ◽  
Design Considerations ◽  
Embedded Electronics

The layer-by-layer nature of additive manufacturing (AM) allows for access to the entire build volume of an artifact during manufacture, including its internal structure. Internal voids are accessible during the build process and allow for components to be embedded and sealed with subsequently printed layers. When AM is combined with Direct Write (DW) of conductive materials, the resulting hybrid process enables the direct manufacture of parts with embedded electronics, including interconnects and sensors. However, the hybridization of DW and AM technologies is non-trivial due to (i) identifying DW materials and processes that are compatible with AM infrastructure, throughput and resolution, (ii) temperature processing requirements, and (iii) interactions between the two materials. In this paper, the authors explore DW technologies and materials to identify those that are most compatible with AM. From this exploration, the authors abstract a set of generalized design considerations for the design of a hybrid AM and DW process. These considerations are then employed in a systematic design process in which a DW system for depositing conductive materials during the PolyJet manufacturing process is realized. The resulting system is able to create embedded functional electronic interconnects and sensors in printed parts composed of both stiff and flexible polymers.

scholarly journals The 3D printing in industrial design

Mechanik ◽  
2020 ◽  
Vol 93 (1) ◽  
pp. 21-26
Author(s):  
Stanisław Adamczak ◽  
Marcin Graba
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Design Process ◽  
Industrial Design ◽  
New Products ◽  
Engineering Studies ◽  
Technical Drawing ◽  
Manufacturing Techniques ◽  
Standard Techniques

Industrial design is an interdisciplinary activity leading to the development of new products that can be successfully launched on the market. Generally, the term industrial design is understood as the design process leading to the determination of various features of the industrial form. For many years, design was practiced using standard techniques such as sketch, presentation drawing, technical drawing, and mockups. However, the development of additive manufacturing techniques meant that an indispensable element in the industrial design is 3D printing, which allows to quickly create a prototype, a model of the designed detail. In this paper, on the example of engineering studies in the field of industrial design, the use of 3D printing in the process of design will be shown.

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