scholarly journals An insight into biomimetic 4D printing

RSC Advances ◽  
2019 ◽  
Vol 9 (65) ◽  
pp. 38209-38226 ◽  
Author(s):  
Nand Jee Kanu ◽  
Eva Gupta ◽  
Umesh Kumar Vates ◽  
Gyanendra Kumar Singh
Keyword(s):  
Additive Manufacturing ◽  
4D Printing ◽  
Insight Into

4D printed objects are indexed under additive manufacturing (AM) objects.

scholarly journals 4D Printing: The Shape-Morphing in Additive Manufacturing

2019 ◽  
Vol 10 (1) ◽  
pp. 9 ◽  
Author(s):  
Ana P. Piedade
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Dynamic Properties ◽  
Living Cells ◽  
Processing Technology ◽  
Future Research ◽  
4D Printing ◽  
Shape Morphing ◽  
Insight Into

3D printing of polymers can now be considered as a common processing technology for the development of biomaterials. These can be constituted out of polymeric abiotic material alone or can be co-printed with living cells. However, the adaptive and shape-morphing characteristics cannot be developed with the rigid, pre-determined structures obtained by 3D printing. In order to produce functional engineered biomaterials, the dynamic properties/characteristics of the living cells must be attained. 4D printing can be envisaged as a route to achieve these goals. This paper intends to give a brief review of the pioneer 4D printing research that has been developed and to present an insight into future research in this field.

Additive Manufacturing of Glass

2014 ◽  
Vol 136 (6) ◽  
Author(s):  
Junjie Luo ◽  
Heng Pan ◽  
Edward C. Kinzel
Keyword(s):  
Additive Manufacturing ◽  
Glass Powder ◽  
Processing Parameters ◽  
Gradient Index ◽  
Continuous Line ◽  
Single Track ◽  
Laser Melting ◽  
Powder Bed ◽  
Transparent Parts ◽  
Insight Into

Selective laser melting (SLM) is a technique for the additive manufacturing (AM) of metals, plastics, and even ceramics. This paper explores using SLM for depositing glass structures. A CO2 laser is used to locally melt portions of a powder bed to study the effects of process parameters on stationary particle formation as well as continuous line quality. Numerical modeling is also applied to gain insight into the physical process. The experimental and numerical results indicate that the absorptivity of the glass powder is nearly constant with respect to the processing parameters. These results are used to deposit layered single-track wide walls to demonstrate the potential of using the SLM process for building transparent parts. Finally, the powder bed process is compared to a wire-fed approach. AM of glass is relevant for gradient index optics, systems with embedded optics, and the formation of hermetic seals.

4D Printing: Future Insight in Additive Manufacturing

2019 ◽  
Vol 26 (5) ◽  
pp. 564-585 ◽  
Author(s):  
Muhammad Qasim Zafar ◽  
Haiyan Zhao
Keyword(s):  
Additive Manufacturing ◽  
4D Printing

Additive manufacturing-enabled shape transformations via FFF 4D printing

2018 ◽  
Vol 33 (24) ◽  
pp. 4362-4376 ◽  
Author(s):  
Abishera Ravichandra Rajkumar ◽  
Kumar Shanmugam
Keyword(s):  
Additive Manufacturing ◽  
4D Printing ◽  
Shape Transformations ◽  
Image Position

Abstract

Advancements in Manufacturing Technology With Additive Manufacturing and Its Context With Industry 4.0

2021 ◽  
pp. 1-24
Author(s):  
Ganzi Suresh
Keyword(s):  
Additive Manufacturing ◽  
Industry 4.0 ◽  
Industrial Revolution ◽  
Three Dimensional ◽  
Metal Alloys ◽  
Layer By Layer ◽  
Post Processing ◽  
Clear Insight ◽  
Am Processes ◽  
Insight Into

Additive manufacturing (AM) is also known as 3D printing and classifies various advanced manufacturing processes that are used to manufacture three dimensional parts or components with a digital file in a sequential layer-by-layer. This chapter gives a clear insight into the various AM processes that are popular and under development. AM processes are broadly classified into seven categories based on the type of the technology used such as source of heat (ultraviolet light, laser) and type materials (resigns, polymers, metal and metal alloys) used to fabricate the parts. These AM processes have their own merits and demerits depending upon the end part application. Some of these AM processes require extensive post-processing in order to get the finished part. For this process, a separate machine is required to overcome this hurdle in AM; hybrid manufacturing comes into the picture with building and post-processing the part in the same machine. This chapter also discusses the fourth industrial revolution (I 4.0) from the perspective of additive manufacturing.

scholarly journals 4D Printing: A Review on Recent Progresses

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 796 ◽  
Author(s):  
Honghui Chu ◽  
Wenguang Yang ◽  
Lujing Sun ◽  
Shuxiang Cai ◽  
Rendi Yang ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Three Dimensional ◽  
Complex Structures ◽  
Future Prospects ◽  
4D Printing ◽  
Stimulation Method ◽  
Shape Property ◽  
External Stimuli

Since the late 1980s, additive manufacturing (AM), commonly known as three-dimensional (3D) printing, has been gradually popularized. However, the microstructures fabricated using 3D printing is static. To overcome this challenge, four-dimensional (4D) printing which defined as fabricating a complex spontaneous structure that changes with time respond in an intended manner to external stimuli. 4D printing originates in 3D printing, but beyond 3D printing. Although 4D printing is mainly based on 3D printing and become an branch of additive manufacturing, the fabricated objects are no longer static and can be transformed into complex structures by changing the size, shape, property and functionality under external stimuli, which makes 3D printing alive. Herein, recent major progresses in 4D printing are reviewed, including AM technologies for 4D printing, stimulation method, materials and applications. In addition, the current challenges and future prospects of 4D printing were highlighted.

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