Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Dynamic Mechanical Response Of Additively Manufactured 316l And Alsi10mg, Kristofer Kuelper
Dynamic Mechanical Response Of Additively Manufactured 316l And Alsi10mg, Kristofer Kuelper
Graduate Theses & Non-Theses
Additive manufacturing (AM), or 3D printing, is a layer by layer method for the fabrication of end use parts. Its utilization in the production of metallic materials, while relatively new, is promising as an alternative technique to build custom or small batch parts with much greater agility than traditional manufacturing methods. The laser powder bed fusion (LPBF) AM technique offers a combination of high geometric accuracy and good mechanical properties for a variety of materials even without post-processing. It can do this by adjusting a number of processing parameters including the intensity of the laser and the thickness of the …
Investigation Of Multiple Torch Paw-Based Additive Manufacturing, Nathan Huft
Investigation Of Multiple Torch Paw-Based Additive Manufacturing, Nathan Huft
Graduate Theses & Non-Theses
PAW Print 3D (PP3D), a wire and arc additive manufacturing (AM) system was developed. PP3D comprises three plasma arc welding torches arranged radially around a central wire feed. Using three torches was hypothesized to eliminate sensitivity to travel direction. Two deposition modes were developed – continuous, which deposited continuous beads, and dabber, which deposited discreet “dabs” of material. Dabber was hypothesized to provide favorable solidification conditions that would refine the as-deposited grain structure. Three sets of process parameters for each deposition mode were developed. Ineffective workpiece melting was observed and investigated during process development. Using COMSOL Multiphysics software and experimental …