Search
CSV
RISSensor-Based Build Condition Monitoring in Laser Powder Bed Fusion Additive Manufacturing Process Using a Spectral Graph Theoretic Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The goal of this work is to monitor the laser powder bed fusion (LPBF) process using an array of sensors so that a record may be made of those temporal and spatial build locations where there is a high probability of defect ...
Thermal Modeling in Metal Additive Manufacturing Using Graph Theory: Experimental Validation With Laser Powder Bed Fusion Using In Situ Infrared Thermography Data
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this work is to provide experimental validation of the graph theory approach for predicting the thermal history of additively manufactured parts. The graph theory approach for thermal modeling in additive ...
In-Process Monitoring of Material Cross-Contamination Defects in Laser Powder Bed Fusion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The goal of this work is to detect the onset of material cross-contamination in laser powder bed fusion (L-PBF) additive manufacturing (AM) process using data from in situ sensors. Material cross-contamination refers to ...
Thermal Modeling in Metal Additive Manufacturing Using Graph Theory
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: The goal of this work is to predict the effect of part geometry and process parameters on the instantaneous spatiotemporal distribution of temperature, also called the thermal field or temperature history, in metal parts ...
Process Mapping and In-Process Monitoring of Porosity in Laser Powder Bed Fusion Using Layerwise Optical Imaging
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The goal of this work is to understand the effect of process conditions on lack of fusion porosity in parts made using laser powder bed fusion (LPBF) additive manufacturing (AM) process, and subsequently, to detect the ...
Hybrid Processes in Additive Manufacturing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hybrid additive manufacturing (hybrid-AM) has described hybrid processes and machines as well as multimaterial, multistructural, and multifunctional printing. The capabilities afforded by hybrid-AM are rewriting the design ...
Quantifying Geometric Accuracy With Unsupervised Machine Learning: Using Self-Organizing Map on Fused Filament Fabrication Additive Manufacturing Parts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Although complex geometries are attainable with additive manufacturing (AM), a major barrier preventing its use in mission-critical applications is the lack of geometric accuracy of AM parts. Existing geometric dimensioning ...
Image-Based Closed-Loop Control of Aerosol Jet Printing Using Classical Control Methods
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Aerosol jet printing (AJP) is a complex process for additive electronics that is often unstable. To overcome this instability, observation while printing and control of the printing process using image-based monitoring is ...
A Sparse Representation Classification Approach for Near Real-Time, Physics-Based Functional Monitoring of Aerosol Jet-Fabricated Electronics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Aerosol jet printing (AJP) is a direct-write additive manufacturing (AM) method, emerging as the process of choice for the fabrication of a broad spectrum of electronics, such as sensors, transistors, and optoelectronic ...
A Computational Fluid Dynamics Investigation of Pneumatic Atomization, Aerosol Transport, and Deposition in Aerosol Jet Printing Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Aerosol jet printing (AJP) is a direct-write additive manufacturing technique, which has emerged as a high-resolution method for the fabrication of a broad spectrum of electronic devices. Despite the advantages and critical ...