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Depth of Cut Monitoring for Hybrid Manufacturing Using Acoustic Emission Sensor

Gaja, Haythem; Liou, Frank (University of Texas at Austin, 2015)

Laser Metal Deposition LMD is a hybrid manufacturing process consist of a laser deposition system combined with a 5-axis CNC milling system. During laser deposition many parameters and their interaction affect the ...

A Framework for Large Scale Fused Pellet Modeling (FPM) by An Industry Robot

Wang, Zhiyun; Liu, Renwei; Sparks, Todd; Liou, Frank (University of Texas at Austin, 2015)

Fused pellet modeling (FPM) is an important method in additive manufacturing technology, where granular material is used instead of filaments. In FPM, prototypes are constructed by the sequential deposition of material ...

Performance Metric for Powder Feeder Systems in Additive Manufacturing

Bitragunta, Venkata Sivaram; Sparks, Todd; Liou, Frank (University of Texas at Austin, 2015)

Direct Laser Deposition of Ti-6Al-4V from Elemental Powder Blends

Yan, Lei; Chen, Xueyang; Li, Wei; Liou, Frank; Newkirk, Joe (University of Texas at Austin, 2015)

A thin-wall structure composed of Ti-6Al-4V has been deposited using direct laser deposition (DLD) from blended Ti, Al, and V elemental powders. The microstructure and composition distribution along the build height ...

A Microstructure and Hardness Study of Functionally Graded Materials Ti6Al4V/TiC by Laser Metal Deposition

Zhang, Jingwei; Zhang, Yunlu; Liou, Frank; Newkirk, Joseph W.; Brown-Taminger, Karen M.; Seufzer, Walliam J. (University of Texas at Austin, 2015)

Crack free functionally graded material (FGM) Ti6Al4V-TiC has been fabricated by laser metal deposition (LMD) using TiC and Ti6Al4V powder which were premixed for different ratios. This study focuses on the influence of ...

Microstructure and Property of TiB-Reinforced Ti Alloy Composites by Laser Metal Deposition

Zhang, Yunlu; Zhang, Jingwei; Liou, Frank; Newkirk, Joseph (University of Texas at Austin, 2015)

TiB-reinforced Ti alloy composites have been laser deposited with pre-alloyed Ti-6Al4V-1B powder. The microstructure of the as-deposited and heat treated composites have been characterized in detail using scanning electron ...

Modeling of Powder Bed Processing – A Review

Flood, Aaron; Liou, Frank (University of Texas at Austin, 2015)

Many models have been developed to model powder beds and these methods can be implemented to model a powder bed for Selective Laser Sintering, Selective Laser Melting and any other technique of additive manufacturing ...

Parameter Determination and Experimental Validation of a Wire Feed Additive Manufacturing Model

Kumar, Kannan Suresh; Sparks, Todd E.; Liou, Frank (University of Texas at Austin, 2015)

Laser metal deposition with wire feed is one of the additive manufacturing methods with great scope and robustness. Process parameters plays an important role in controlling the process and obtaining an ideal manufactured ...