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Manufacturing

Additive manufacturing

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Displaying 176 - 200 of 657

Investigating Statistical Correlation Between Multiple In-Situ Monitoring Datasets for Powder Bed Fusion Additive Manufacturing

August 24, 2022
Author(s)
Zhuo Yang, Yan Lu, Milica Perisic, Yande Ndiaye, Adnan Gujjar, Fan-Tien Cheng, Haw-Ching Yang
In-situ measurements provide vast information for additive manufacturing process understanding and real-time control. Data from various monitoring techniques observes different characteristics of a build process. Fusing multi-modal in-situ monitoring data

Phase transformation dynamics guided alloy design for additive manufacturing

August 23, 2022
Author(s)
Qilin Guo, Minglei Qu, Chihpin Chuang, Lianghua Xiong, Ali Nabaa, Zachary Young, Yang Ren, Peter Kenesei, Fan Zhang, Lianyi Chen
Fusion-based additive manufacturing technologies enable the fabrication of geometrically and compositionally complex parts unachievable by conventional manufacturing methods. However, the non-uniform and far-from-equilibrium heating/cooling conditions pose

CAPABILITIES IN SOFTWARE SYSTEMS for METAL ADDITIVE MANUFACTURING - A REVIEW

August 8, 2022
Author(s)
Shaw C. Feng, Paul Witherell, Albert T. Jones, Tesfaye Moges, Hyunseop Park, Mostafa Yakout, Hyunwoong Ko
Additive manufacturing (AM) is rapidly transitioning to an accepted production technology. This transition has led to increasing demands on data analysis and software tools. Advances in data acquisition and analysis are being propelled by an increase in

Laser Calibration for Powder Bed Fusion Additive Manufacturing Process

July 27, 2022
Author(s)
Ho Yeung, Steven Grantham
Laser powder bed fusion systems use a high-power laser, steered by two galvanometer mirrors to scan a pattern on metal powder layers. The laser spot size, position, and synchronization between the laser power and position are critical to the build quality

Ultrafast stiffening of concentrated thermoresponsive polymer-mineral suspensions

July 21, 2022
Author(s)
Edward Garboczi, Sharu Kandy, Iman Mehdipour, Narayanan Neithalath, Aditya Kumar, Mathieu Bauchy, Samanvaya Srivastava, Torben Gaedt, Gaurav Sant
Extrusion-based 3D printing with rapidly hardening polymeric materials is capable of building almost any conceivable structure. However, concrete, one of the most widely used materials for large-scale structural components, is generally based on inorganic

WELD TRACK DISTORTION IN LASER POWDER BED FUSION OF NICKEL SUPERALLOY 625

July 11, 2022
Author(s)
Jason Fox, Christopher Evans, Aarush Sood, Romaine Isaacs, Brigid Mullany, Angela Allen, Ed Morse
Laser powder bed fusion (LPBF) is one of a group of manufacturing technologies capable of producing complex structures and surfaces in small batches and with reduced lead time. Materials ranging from light metals (e.g., aluminum alloys) to high temperature

Schmid Factor Crack Propagation and Tracking Crystallographic Texture Markers of Microstructural Condition in Direct Energy Deposition Additive Manufacturing of Ti-6Al-4V

July 6, 2022
Author(s)
Alec Saville, Jake Benzing, Sven Vogel, Jessica Buckner, Collin Donohoue, Andrew Kustas, Adam Creuziger, Kester Clarke, Amy Clarke
Metallic additive manufacturing (AM) provides a customizable and tailorable manufacturing process for new engineering designs and technologies. The greatest challenge currently facing metallic AM is maintaining control of microstructural evolution during

Suppression of filament defects in embedded 3D printing

July 5, 2022
Author(s)
Leanne Friedrich, Ross Gunther, Jonathan Seppala
Embedded 3D printing enables the manufacture of soft, intricate structures. In the technique, a nozzle is embedded into a viscoelastic support bath and extrudes filaments or droplets. While embedded 3D printing expands the printable materials space to low

Spatiotemporal Monitoring of Melt-Pool Variations in Metal-Based Additive Manufacturing

July 1, 2022
Author(s)
Siqing Zhang, Yan Lu, Paul Witherell, Timothy Simpson, Soundar Kumara, Hui Yang
Additive manufacturing provides a higher level of flexibility to build customized products with complex geometries. However, AM is currently limited in its ability to ensure quality assurance and process repeatability. Advanced imaging provides unique