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Open AccessReview

A Review of Stereolithography: Processes and Systems

School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
Author to whom correspondence should be addressed.
Processes 2020, 8(9), 1138;
Received: 21 August 2020 / Revised: 8 September 2020 / Accepted: 10 September 2020 / Published: 11 September 2020
(This article belongs to the Section Advanced Digital and Other Processes)
Being the earliest form of additive manufacturing, stereolithography (SLA) fabricates 3D objects by selectively solidifying the liquid resin through a photopolymerization reaction. The ability to fabricate objects with high accuracy as well as a wide variety of materials brings much attention to stereolithography. Since its invention in the 1980s, SLA underwent four generations of major technological innovation over the past 40 years. These innovations have thus resulted in a diversified range of stereolithography systems with dramatically improved resolution, throughput, and materials selection for creating complex 3D objects and devices. In this paper, we review the four generations of stereolithography processes, which are scanning, projection, continuous and volumetric stereolithography. For each generation, representative stereolithography system configurations are also discussed in detail. In addition, other derivative technologies, such as scanning–projection, multi-material, and magnetically assisted stereolithography processes, are also included in this review. View Full-Text
Keywords: additive manufacturing; stereolithography; scanning; projection; continuous additive manufacturing; stereolithography; scanning; projection; continuous
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MDPI and ACS Style

Huang, J.; Qin, Q.; Wang, J. A Review of Stereolithography: Processes and Systems. Processes 2020, 8, 1138.

AMA Style

Huang J, Qin Q, Wang J. A Review of Stereolithography: Processes and Systems. Processes. 2020; 8(9):1138.

Chicago/Turabian Style

Huang, Jigang; Qin, Qin; Wang, Jie. 2020. "A Review of Stereolithography: Processes and Systems" Processes 8, no. 9: 1138.

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