Development of Functional Devices Using Micro/Nano Stereolithography and Moulding Techniques

Maruo, Shoji

doi:10.1177/0307174x1504200402

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…Whereas commercially available SLA setups allow building constructs with details of 20 mm in size, other additive manufacturing techniques allow building structures with details in the range of 50-200 mm [101]. High resolution micro-SLA setups have been developed that allow building at resolutions even lower than 20 mm, with details from 5 mm [154][155][156] to close to 40-500 nm in size [157][158][159][160][161]. More recently, an apparatus in which SLA and extrusion are combined has been developed by Shanjani et al [146].…”

Section: Stereolithographymentioning

confidence: 99%

Photo-crosslinked synthetic biodegradable polymer networks for biomedical applications

Bochove

Grijpma

2019

Journal of Biomaterials Science, Polymer Edition

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Photo-crosslinked synthetic biodegradable polymer networks are highly interesting materials for utilization in biomedical applications such as drug delivery, cell encapsulation and tissue engineering scaffolds. Varying the architecture, chemistry, degree of functionalization and molecular weight of the macromer precursor molecules results in networks with a wide range of physical-and mechanical properties, crosslinking densities, degradation characteristics and thus in potential applications. Photo-crosslinked networks can easily be prepared and have the possibility to entrap a wide range of (biologically active) substances and cells. Additionally, spatial and temporal control over the crosslinking process when using additive manufacturing processes, allows for the preparation of network structures with complex shapes. Photocrosslinked networks have been used to prepare drug delivery devices, as these networks allow for drug delivery in a controlled way over a prolonged period of time. Furthermore, additive manufacturing techniques such as extrusion-based additive manufacturing and stereolithography have been used to prepare photo-crosslinked tissue engineering scaffolds. This allows for the preparation of designed porous structures with precise control over the pore size and pore architecture and optimal mechanical properties. In particular for stereolithography, a wide variety of resins based on biodegradable photo-crosslinkable macromers has been developed.

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Section: Stereolithographymentioning

confidence: 99%

Photo-crosslinked synthetic biodegradable polymer networks for biomedical applications

Bochove

Grijpma

2019

Journal of Biomaterials Science, Polymer Edition

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“…The SL technique has also been used in micro/nano scale fabrication (Maruo, 2015). Ha and Yang (2014) studied that surface friction factor taken into consideration when fabricating closed structures does not affect open complex structure.…”

Section: Overview Of Quality Control In Additive Manufacturingmentioning

confidence: 99%

A review on quality control in additive manufacturing

Kim

Lin

Tseng

2018

RPJ

218

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Purpose -The usage of additive manufacturing (AM) technology in industries has reached up to 50 per cent as prototype or end-product. However, for AM products to be directly used as final products, AM product should be produced through advanced quality control process, which has a capability to be able to prove and reach their desire repeatability, reproducibility, reliability and preciseness. Therefore, there is a need to review quality-related research in terms of AM technology and guide AM industry in the future direction of AM development. Design/methodology/approach -This paper overviews research progress regarding the QC in AM technology. The focus of the study is on manufacturing quality issues and needs that are to be developed and optimized, and further suggests ideas and directions toward the quality improvement for future AM technology. This paper is organized as follows. Section 2 starts by conducting a comprehensive review of the literature studies on progress of quality control, issues and challenges regarding quality improvement in seven different AM techniques. Next, Section 3 provides classification of the research findings, and lastly, Section 4 discusses the challenges and future trends. Findings -This paper presents a review on quality control in seven different techniques in AM technology and provides detailed discussions in each quality process stage. Most of the AM techniques have a trend using in-situ sensors and cameras to acquire process data for real-time monitoring and quality analysis. Procedures such as extrusion-based processes (EBP) have further advanced in data analytics and predictive algorithms-based research regarding mechanical properties and optimal printing parameters. Moreover, compared to others, the material jetting progresses technique has advanced in a system integrated with closed-feedback loop, machine vision and image processing to minimize quality issues during printing process.Research limitations/implications -This paper is limited to reviewing of only seven techniques of AM technology, which includes photopolymer vat processes, material jetting processes, binder jetting processes, extrusion-based processes, powder bed fusion processes, directed energy deposition processes and sheet lamination processes. This paper would impact on the improvement of quality control in AM industries such as industrial, automotive, medical, aerospace and military production. Originality/value -Additive manufacturing technology, in terms of quality control has yet to be reviewed.

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Development of Functional Devices Using Micro/Nano Stereolithography and Moulding Techniques

Cited by 2 publications

References 30 publications

Photo-crosslinked synthetic biodegradable polymer networks for biomedical applications

Photo-crosslinked synthetic biodegradable polymer networks for biomedical applications

A review on quality control in additive manufacturing

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