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Computational Process Modeling for Additive Manufacturing (OSU)Powder-Bed Additive Manufacturing (AM) through Direct Metal Laser Sintering (DMLS) or Selective Laser Melting (SLM) is being used by NASA and the Aerospace industry to "print" parts that traditionally are very complex, high cost, or long schedule lead items. The process spreads a thin layer of metal powder over a build platform, then melts the powder in a series of welds in a desired shape. The next layer of powder is applied, and the process is repeated until layer-by-layer, a very complex part can be built. This reduces cost and schedule by eliminating very complex tooling and processes traditionally used in aerospace component manufacturing. To use the process to print end-use items, NASA seeks to understand SLM material well enough to develop a method of qualifying parts for space flight operation. Traditionally, a new material process takes many years and high investment to generate statistical databases and experiential knowledge, but computational modeling can truncate the schedule and cost -many experiments can be run quickly in a model, which would take years and a high material cost to run empirically. This project seeks to optimize material build parameters with reduced time and cost through modeling.
Document ID
20150002931
Acquisition Source
Marshall Space Flight Center
Document Type
Presentation
Authors
Bagg, Stacey
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Zhang, Wei
(Ohio State Univ. Columbus, OH, United States)
Date Acquired
March 13, 2015
Publication Date
January 27, 2015
Subject Category
Mechanical Engineering
Report/Patent Number
M15-4381
Meeting Information
Meeting: Annual Industry Advisory Board meeting for NSF I/UCRC CIMJSEA
Location: Columbus, OH
Country: United States
Start Date: January 27, 2015
Distribution Limits
Public
Copyright
Public Use Permitted.
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