John Jorstad is President of J.L.J. Technologies, Inc. and a consultant specializing in the technology of light metal casting. He is retired from Reynolds Metals Company where for more than 30 years he specialized in hypereutectic alloys and their applications, foundry processes, machining, joining and aluminum engines. Following retirement (early 1993) he served as a Detroit consultant, primarily in the area of structural automotive chassis and suspension castings. From June 1999 until July 2000, he was President and CEO of Formcast, Inc., a manufacturer of semi-solid metal cast engineered components and since then again serves as a consultant to the light metals casting industry. Jorstad is a member of NADCA, SAE, AFS and ASM International. He has served as a National Director of AFS and as a Director and Trustee of the Foundry Educational Foundation. He is also Director-at-Large of the Advanced Casting Research Center (ACRC) at Worcester Polytechnic Institute. He has authored more than 100 articles related to aluminum casting. He was co-reviewer and reviser of AFS’s 1993 version of “Aluminum Casting Technology.” He wrote the casting applications section for the ASM course, “Aluminum and Its Alloys.” He was a co-authored of two recent NADCA publications “Science and Technology of Semi Solid Metal Processing” (2001) and “High Integrity Aluminum Die Casting: Alloys, Processes and Melt Preparation” (2004), and the AFS “ Aluminum Permanent Mold Handbook”. Select recent publications (author/co-author - 5 years):Semi-Solid Metal Processing: A Cost-Competitive Approach for High Integrity Aluminum Components, keynote address, Transactions, 6th S2P International Conference on Semi Solid Processing of Alloys and Composites, Torino, Italy, September 2000.Processing of SSM: Practical Considerations, Chapters 4 and 6, the book Science and Technology of Semi-Solid Metal Processing, North American Die Casting Association (NADCA), Rosemont, IL, 2001.Economical Semi Solid Metal (SSM) Processing of Automotive Components, SAE International Congress, March 2002, Detroit, MI.SLC®, The Newest and Most Economical Approach to Semi-Solid Metal (SSM), Casting, Transactions, 7th S2P International Conference on Semi Solid Processing of Alloys and Composites, Tsukuba, Japan, September 2002.High Integrity Die Casting Process Variations, Transactions, International Conference on Structural Castings of Aluminum, American Foundry Society, Orlando, FL, October 2003.Bringing SSM to the Masses, Modern Casting, American Foundry Society, October 2003.Hypereutectic Al-Si Alloy Parts Manufacture; Practical Processing Techniques, Transactions, Light Metals Technology Conference, Brisbane, Australia, September 2003.Novel, Slurry-Based Semi Solid Processing Routes, Transactions, Light Metals Technology Conference, Brisbane, Australia, September 2003.High Integrity Die Casting Processes & Alloys, two chapters in the book High Integrity Die Casting: Alloys, Processes and Melt Preparation, North American Die Casting Association, Des Plaines, IL, 2004. The Ductility Challenge: New Options for the Future, Silver Anniversary Lecture, American Foundry Society Congress, Rosemont, IL, June 2004.Semi-Solid Metal Processing; The High Integrity Die Casting Process, Die Casting Engineer, North American Die Casting Association, Wheeling, IL, January 2004.Hypereutectic Al-Si Alloys; Practical Die Casting Techniques, Die Casting Engineer, North American Die Casting Association, Wheeling, IL, May 2004.SSM Processes; An Overview, keynote address, Transactions, 8th S2P International Conference on Semi Solid Processing of Alloys and Composites, Cyprus, September 2004.Fundamental Requirements for Slurry Generation in the Sub Liquidus Casting Process, and the Economics of SLC Processing, Transactions, 8th S2P International Conference on Semi Solid Processing of Alloys and Composites, Cyprus, September 2004.Pressure-Assisted Processes for High Integrity Automotive Aluminum Castings.; Principles and Fundamentals, keynote address, Transactions, International Conference on High Integrity Light metal Castings, American Foundry Society, Indianapolis, IN, November 2005.Filling Mold Cavities at High Flow Velocities Without Turbulence; Transactions, Shape Casting: The John Campbell Symposium, TMS, San Francisco, February 2005.The Aluminum Foundry: Today, the Next Horizon and the Future, keynote address, Transactions, World Foundry Congress Technical Forum, St Louis, MO April 2005.Solidification Microstructure Affecting Ductility in Semi Solid Cast Products, Transaction, International Conference on Advances in Solidification Processing, Stockholm, Sweden, June 2005; published in Materials Science and Technology A, Elsevier Publishing, Dec 2005.Future Technology in Die Casting, CEO Conference, North American Die Casting Association, Miami, FL, February 2006 (to be published in Die Casting Engineer, NADCA).A Rheocasting Route: SLC + CRP, Marriage of Unique Processes, Transactions North American Die Casting Association, Columbus, OH, April 2005 (submitted).
Published April 22, 2006