David O. Kazmer, P.E., Ph.D.
Specializing in plastic product design and polymer process development.

STEPHEN JOHNSTON

CURRENT RESEARCH

Currently researching the development of simulations for application to on-line, real time process control of injection molding. Estimating melt temperatures, flow rates, and part properties from in-mold sensor data.

EDUCATION

• D.Eng in Plastics Engineering, The University of Massachusetts Lowell. Dissertation: Advanced sensing of the injection molding process, May 2007.
• M.S.E. in Plastics Engineering, The University of Massachusetts Lowell. Thesis: Development of a 1-D Flow Code for On-line Simulation, May 2005.
• B.S. in Plastics Engineering Tech., Penn State University - The Behrend College, May 2003.

PROFESSIONAL EXPERIENCE

Quality Assurance Engineer Intern, Moldflow Corp., Ithaca, NY (6/2005–8/2005)

• Investigated and reported inaccuracies discovered in newly developed software
• Ran studies comparing existing 3D solvers with new development builds

Technical Support Engineer Intern, Moldflow Corp., Ithaca, NY (6/2004–8/2004)

• Resolved technical issues facing Moldflow users from across North America.
• Handled questions on installation, licensing, modeling, analysis setup, and results interpretation.

Teaching Assistant, UMass Lowell (8/2003 – Present)

• Teaching a CAE lab on solid modeling. (Received Outstanding TA Award 2004)
• Responsible for maintaining the computer network for the UML Plastics Dept.

Associate Test Engineer Intern, Lord Corporation, Erie, PA (5/2003-8/2003)

• Performed static, dynamic, environmental, and fatigue testing of prototype parts.
• Designed and assembled custom test machines and fixtures.

Engineering Internship in R&D, Lord Corporation, Erie, PA (12/2001-8/2002)

• Worked with a team of engineers designing composite reinforced rubber bearings.
• Analyzed the structural integrity of potential designs using finite element analysis.

PUBLICATIONS

• S. Johnston and D. Kazmer, “Decoupled Gating and Simulation for Injection Molding,” Accepted to Polymer-Plastics Technology & Engineering.
• S. Johnston and D. Kazmer, “Estimation of Melt Temperature from In-mold Temperature Sensor Data” Submitted to Society of Plastics Engineers for ANTEC 06.
• D. Kazmer, R. Gao, Y. Cui, S. Johnston, and P. Knepper. “Concept Design of a Wireless Pressure, Temperature and Flow Rate Sensor for Injection Molding.” ANTEC 2005, Society of Plastics Engineers, pp 3640-3644.
• S. Johnston and S. Squires. “Effects of Processing Parameters and Wall Thickness on Core Geometry and Core Penetration for Co-injection Parts.” ANTEC 2003, Society of Plastics Engineers, pp 3348-3352.