scholarly journals Current Trends and Issues of Additive Manufacturing

2015 ◽  
Vol 62 (8) ◽  
pp. 387
Author(s):  
Hideshi MIURA
Keyword(s):  
Additive Manufacturing ◽  
Current Trends

Reconfigurable molds and a fabrication-aware design tool for manufacturing concrete grid structures

2021 ◽  
pp. 147807712110300
Author(s):  
Ali Baghi ◽  
Saleh Kalantari ◽  
Aryan Baghi
Keyword(s):  
Additive Manufacturing ◽  
Casting Machine ◽  
Design Tool ◽  
Digital Design ◽  
Architectural Geometry ◽  
Current Trends ◽  
Design And Manufacturing ◽  
Concrete Joints ◽  
Concrete Casting ◽  
Concrete Elements

The design and manufacturing of concrete elements need to be reconsidered in light of current trends in architectural geometry. Today, there is a movement toward greater customization and adaptability of concrete elements using “reconfigurable formworks” and “additive manufacturing.” Our study approached the issue of fabricating non-standardized concrete elements from the perspective of a “reconfigurable fabrication platform.” Specifically, we developed a method of fabricating geometrically diverse concrete joints by combining flexible pressure-enduring tubes with a rigid mechanism, resulting in an adaptive concrete-casting machine. This platform, which we named “Flexi-node,” can be used in conjunction with a relevant fabrication-aware digital design tool. Users can computationally design and fabricate a great variety of concrete joints using just one mold, with a minimum of material waste and with no distortion from hydrostatic pressure as would typically occur in a fully flexible formwork.

Dimensional Accuracy in PolyJet Printing: A Literature Review

2019 ◽  
Author(s):  
Ketan Thakare ◽  
Xingjian Wei ◽  
Zhijian Pei
Keyword(s):  
Additive Manufacturing ◽  
Layer Thickness ◽  
Surface Finish ◽  
Dimensional Accuracy ◽  
High Dimensional ◽  
Control Variables ◽  
Current Trends ◽  
Manufacturing Methods ◽  
Polyjet Printing ◽  
Part Orientation

Abstract PolyJet printing process is one of the additive manufacturing methods to print parts with high dimensional accuracy. To date, dimensional accuracies of such process have been investigated by a number of studies. This review will summarize those studies, and identify current trends. With respect to methods of measurements used in the reported studies, it is noted that no special preference is given to use of any method. In addition, the effects of four control variables of PolyJet process: part orientation, layer thickness, surface finish type and materials, on dimensional accuracy are noted based on the results of reported studies. There is consistency in results in studies considering control variables of layer thickness, surface finish type and materials. However, the results are inconsistent in studies considering part orientation.

scholarly journals Current Trends in Metallic Orthopedic Biomaterials: From Additive Manufacturing to Bio-Functionalization, Infection Prevention, and Beyond

2018 ◽  
Vol 19 (9) ◽  
pp. 2684 ◽  
Author(s):  
Amir Zadpoor
Keyword(s):  
Additive Manufacturing ◽  
Medical Devices ◽  
Biomedical Engineering ◽  
Infection Prevention ◽  
The Other ◽  
Prevention Strategies ◽  
Special Issue ◽  
Metallic Biomaterials ◽  
Current Trends ◽  
Recent Developments

There has been a growing interest in metallic biomaterials during the last five years, as recent developments in additive manufacturing (=3D printing), surface bio-functionalization techniques, infection prevention strategies, biodegradable metallic biomaterials, and composite biomaterials have provided many possibilities to develop biomaterials and medical devices with unprecedented combinations of favorable properties and advanced functionalities. Moreover, development of biomaterials is no longer separated from the other branches of biomedical engineering, particularly tissue biomechanics, musculoskeletal dynamics, and image processing aspects of skeletal radiology. In this editorial, I will discuss all the above-mentioned topics, as they constitute some of the most important trends of research on metallic biomaterials. This editorial will, therefore, serve as a foreword to the papers appearing in a special issue covering the current trends in metallic biomaterials.

110th Anniversary: Vat Photopolymerization-Based Additive Manufacturing: Current Trends and Future Directions in Materials Design

2019 ◽  
Vol 58 (33) ◽  
pp. 15109-15118 ◽  
Author(s):  
Gayan A. Appuhamillage ◽  
Nicholas Chartrain ◽  
Viswanath Meenakshisundaram ◽  
Keyton D. Feller ◽  
Christopher B. Williams ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Materials Design ◽  
Future Directions ◽  
Current Trends

Novel Additive Manufacturing Processes and Techniques in Industry 4.0

2020 ◽  
pp. 439-455
Author(s):  
Kuldeep Kumar Saxena ◽  
Ankita Awasthi
Keyword(s):  
Additive Manufacturing ◽  
Industry 4.0 ◽  
Industrial Revolution ◽  
Production Systems ◽  
Manufacturing Processes ◽  
End User ◽  
Mechanical Parts ◽  
Current Trends ◽  
Scientific World ◽  
Materials Used

The chapter contains a comprehensive study to analyse the importance of additive manufacturing in relevance with latest industrial revolution, Industry 4.0. Industry 4.0 is the most promising field with the integration of intelligent production systems with advanced technologies. Additive manufacturing is one of the keys to unlock wonders in scientific world when merging with Industry 4.0. This technology not only provides freedom to customize mechanical parts as per end user requirements, but its ability to construct complex structures and rapid prototyping has given it an edge over other manufacturing processes. Additive manufacturing is a revolutionary technology, which is very impactful in changing industrial scenario where the need of the customer is very dynamic. In this chapter, current trends, methodology, materials used with their advantages and drawbacks are reported. In the end, future benchmarks are also estimated, which becomes important due to the dynamic nature of the industry and its adaptation by the technology to give the relevant solutions.

Optimization and Simulation of Additive Manufacturing Processes

2020 ◽  
pp. 187-209
Author(s):  
Deepak Kumar Sahini ◽  
Joyjeet Ghose ◽  
Sanjay Kumar Jha ◽  
Ajit Behera ◽  
Animesh Mandal
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Sustainable Manufacturing ◽  
Simulation Models ◽  
Point Of View ◽  
Manufacturing Optimization ◽  
Current Trends ◽  
Optimization And Simulation ◽  
Metallic Parts ◽  
Am Processes

Additive manufacturing (AM) has developed and gained popularity across the globe into a multi-billion-dollar industry that involves many materials and techniques. AM has created itself as a technology for the manufacturing of metallic parts with enhanced mechanical characteristics that are scientifically sound and commercially feasible. However, there are various challenges, from business point of view, like high machine and material costs. Considering the complexities involved, sustainable manufacturing, optimization tools, and simulation models are necessary in order to save time and costly trial and errors. Topology optimization and simulation of AM processes are commercially available and are receiving attention from scientists and industry. Thus, this chapter is designed to provide readers with a brief introduction to AM technologies with typical applications. The main objective of this chapter is to provide the current trends and innovations in the field of design for additive manufacturing (DFAM), topology optimization, and simulation technologies.

scholarly journals State of the Art Review about Bio-Inspired Design and Applications: An Aerospace Perspective

2021 ◽  
Vol 11 (11) ◽  
pp. 5054
Author(s):  
Sejal Budholiya ◽  
Aayush Bhat ◽  
S. Aravind Raj ◽  
Mohamed Thariq Hameed Sultan ◽  
Ain Umaira Md Shah ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
State Of The Art ◽  
Material Selection ◽  
Aerospace Industry ◽  
Natural World ◽  
Current Trends ◽  
Current Review ◽  
Recent Growth ◽  
Manufacturing Methods ◽  
Automated Methods

The field of bio-inspired design has tremendously transitioned into newer automated methods, yet there are methods being discovered which can elucidate underlying principles in design, materials, and manufacturing. Bio-inspired design aims to translate knowledge from the natural world to the current trends in industry. The recent growth in additive manufacturing (AM)methods has fueled the tremendous growth of bio-inspired products. It has enabled the production of intricate and complicated features notably used in the aerospace industry. Numerous methodologies were adopted to analyse the process of bio-inspired material selection, manufacturing methods, design, and applications. In the current review, different approaches are implemented to utilize bio-inspired designs that have revolutionized the aerospace industry, focusing on AM methods.

Current Trends in the Training and Utilization of Paraprofessionals in Speech and Language Programs

1991 ◽  
Vol 22 (2) ◽  
pp. 51-59 ◽  
Author(s):  
Kathy L. Coufal ◽  
Allen L. Steckelberg ◽  
Stanley F. Vasa
Keyword(s):  
Selection Criteria ◽  
Job Descriptions ◽  
Paraprofessional Training ◽  
Language Programs ◽  
Program Administrators ◽  
Current Trends ◽  
Training And Supervision ◽  
Communicative Disorders ◽  
Supervision Practices ◽  
A Current

Administrators of programs for children with communicative disorders in 11 midwestern states were surveyed to assess trends in the training and utilization of paraprofessionals. Topics included: (a) current trends in employment, (b) paraprofessional training, (c) use of ASHA and state guidelines, and (d) district policies for supervision. Selection criteria, use of job descriptions, training programs, and supervision practices and policies were examined. Results indicate that paraprofessionals are used but that standards for training and supervision are not consistently applied across all programs. Program administrators report minimal training for supervising professionals.

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