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Review Article

A Review on Process Monitoring and Control in Metal-Based Additive Manufacturing

[+] Author and Article Information
Gustavo Tapia

Department of Industrial and
Systems Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: gustapia06@tamu.edu

Alaa Elwany

Assistant Professor
Department of Industrial and
Systems Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: elwany@tamu.edu

1Corresponding author.

Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received April 12, 2014; final manuscript received September 3, 2014; published online October 24, 2014. Assoc. Editor: David L. Bourell.

J. Manuf. Sci. Eng 136(6), 060801 (Oct 24, 2014) (10 pages) Paper No: MANU-14-1162; doi: 10.1115/1.4028540 History: Received April 12, 2014; Revised September 03, 2014

There is consensus among both the research and industrial communities, and even the general public, that additive manufacturing (AM) processes capable of processing metallic materials are a set of game changing technologies that offer unique capabilities with tremendous application potential that cannot be matched by traditional manufacturing technologies. Unfortunately, with all what AM has to offer, the quality and repeatability of metal parts still hamper significantly their widespread as viable manufacturing processes. This is particularly true in industrial sectors with stringent requirements on part quality such as the aerospace and healthcare sectors. One approach to overcome this challenge that has recently been receiving increasing attention is process monitoring and real-time process control to enhance part quality and repeatability. This has been addressed by numerous research efforts in the past decade and continues to be identified as a high priority research goal. In this review paper, we fill an important gap in the literature represented by the absence of one single source that comprehensively describes what has been achieved and provides insight on what still needs to be achieved in the field of process monitoring and control for metal-based AM processes.

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Fig. 1

Number of cited research efforts on the monitoring and control of metal-based AM by year

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