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Welcome to the Advanced Manufacturing Laboratory

Here we focus on the scientific investigation of advanced manufacturing processes to improve quality and productivity in industry, as well as advanced robotic techniques for industrial and health care applications.  Much of our work accomplishes this via laser technologies.

Recent Publications

Laser Shock Peening for Suppression of Hydrogen-Induced Martensitic Transformation in Stress Corrosion Cracking (2017).  G. Brandal, Y.L.Yao      

Laser shock peening (LSP) improves the resistance of a material to stress corrosion cracking. The increased resistance is not just attributed to compressive residual stresses, but is also due to microstructural changes that occur during LSP. Dislocations created during LSP reduce the hydrogen concentration, thereby preventing the phase transformation from austenite to martensite.

 

Interlaminar Toughening of GFRP - Part II: Characterization and Numerical Simulation of Curing Kinetics (2016). D. Bian, B.R. Beeksma, D.J. Shim, M. Jones, Y.L. Yao

A polystyrene (PS) additive modified epoxy is used to improve the diffusion and precipitation region between polysulfone (PSU) interleaf and epoxy due to its influence on the curing kinetics without changing glass transition temperature and viscosity of the curing epoxy. The temperature dependent diffusivities of epoxy, amine hardener, and PSU are determined by using Attenuated Total Reflection- Fourier Transfer Infrared Spectroscopy (ATR-FTIR) through monitoring the changing absorbance of their   characteristic peaks.

 

 

Effect of Geometrical Modeling on Prediction of Laser-Induced Heat Transfer in Metal Foam (2016).  T. Bucher, C. Bolger, M. Zhang, C.J. Chen, Y.L. Yao

The heat transfer aspects of laser forming of closed-cell aluminum foam are analyzed both experimentally (using an IR camera) and numerically (using 3 models with different geometrical accuracies). The efforts in this paper mark the first step towards a precise prediction of the geometrical and associate mechanical properties of laser-formed aluminum foam.

 

 

 

 

 

Recent News

 

Dr. Jesus del Val has joined AML in early August 2017 to begin his one-year research stay as a Visiting Scholar from Spain.  He plans to focus on research into synthesizing bioglass nanoparticles via laser ablation.

 

Steven Cardenas and Robert Kydd started their 8-week summer research with AML late May, 2017.  They were supported as Research Experience for Undergraduates (REU) funded by National Science Foundation.  Each of them is involved in an active research project going on in the AML.

 

Doctoral student, Dakai Bian, and Prof. Yao attended MSEC/NAMRC Conference in Los Angles, CA June 4 to 8, 2017.  Dakai presented a two-part paper “Interlaminar Toughening of GFRP, Part I and Part II,” which is based on a collaboration with GE Global Research and funded by a GOALI grant from National Science Foundation.  Prof. Yao presented a paper “Bending Mechanism Analysis for Laser Forming of Metal Foam.”

 

Prof. Yao has also hosted an editorial board meeting of ASME Journal of Manufacturing Science and Engineering, of which he is the editor.

 

Prof. Yao attended the ASME Technical Committee on Publications and Communications/Board of Editors meeting held in Phoenix, AZ on November 12-13, 2016.  He currently serves as Editor, ASME Journal of Manufacturing Science and Engineering.  He exchanged views with editors of other ASME journals.

 

Grant Brandal successfully defended his doctoral dissertation on November 3, 2016.  The title is Joining and Deformation Processes with Corrosion Resistance.  Soon after receiving his PhD degree, Grant joined GE Global Research in Niskayuna, NY as a Research Engineer.

 

Doctoral student, Grant Brandal, attended the 34th International Congress on Applications of Lasers & Electro-Optics (ICALEO 34) held in San Diego, CA during October 16-20, 2016.  On behalf of our team, Grant presented two papers “Shunt Loss and Thermally Induced Material Changes in Laser Scribing of Thin Film Solar Cells,” and “Dislocation Generation and Cell Formation as a Mechanism for Stress Corrosion Cracking Mitigation.“

 

Doctoral student, Tizian Bucher, and Prof. Yao attended MSEC/NAMRC Conference in Blacksburg, VT June 27 to 30, 2016.  Tizian presented a paper “Effect of Geometrical Modeling on Prediction of Laser-Induced Heat Transfer in Metal Foam,” which won a Best Paper award of NAMRC 2016. Prof. Yao presented a paper “Platform-Dependent Liquid Handling in High-Throughput Biodosimetry Tool,” which is based on a collaborative project with Columbia University Medical Center.  Prof. Yao has also attended a few committee meetings at the conference.

Three REU students, Adelaide Young, Vincent Zhang, and Brad Beeksma, started their 8-week summer research with AML on June 6, 2016.  REU stands for Research Experience for Undergraduates, which is funded by National Science Foundation.  Each of them is involved in an active research project going on in the AML.

Doctoral student, Tizian Bucher, got married in Lucerne, Switzerland on May 21, 2016. We are happy and excited for you, Tizian!

Prof. Yao attended a two-day panel at National Science Foundation February 11 to 12, 2016.  It was organized by the Division of Chemical, Bioengineering, Environmental, and Transport Systems to evaluate proposals in the areas of Energy for Sustainability and Thin Film Photovoltaics in particular.

Prof. Yao was invited to attend a series of events at Shanghai Jiao Tong University (SJTU) December 18 to 19, 2015.  The events were SJTU inaugural faculty tenure evaluation meeting, the opening of SJTU Intelligent Manufacturing Institute and Innovation Center, and International Intelligent Manufacturing Workshop.  About 20 experts from overseas and 20 experts from SJTU attended the events. 

 

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[This site was last updated on 09/08/2017]                                                                              | Department of Mechanical Engineering | SEAS | Columbia University |