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Application of Fracture Mechanics in the Design of Low-Alloy Steel Cast- ings for Heavy Mobile Equipment (17-035) Patrick Severson, Rani El-Hajjar, Pradeep Rohatgi, University of Wiscon- sin-Milwaukee (Milwaukee); Hathibela- gal Roshan, Maynard Steel Casting Co. (Milwaukee) Low-alloy steel castings are im-


portant components in structures for heavy mobile equipment. Typically, cast components are analyzed by de- termining the mean stress, stress range and von Mises stress. Using these stresses, an engineer can determine fatigue life using the Modifi ed Good- man approach, along with determining adequate safety factors for strength and fatigue. Fracture mechanics prop- erties of a typical low-alloy steel and its application in the design of castings will be discussed.


Invention of Variable Density Lightweight Steel Castings for Army, Naval and Civilian Applications (17-036) Hathibelagal Roshan, Maynard Steel Casting Co. (Milwaukee) T e ability to absorb energy of


impact or blast is crucial to the design of army and navy structures. Metal- lic foams possess low density, energy absorption and vibration damping ca- pabilities. At Maynard Steel, inventive developments of steel foam have been made that result in lower weight com- pared to solid steel. U.S. and interna- tional patent applications are pending for these developments. T e intent of this presentation is to bring awareness to defense and civilian engineers and designers regarding the availability of this new material for applications.


8-11:30 a.m. AFS Institute Course: Virtual Cast- ing Process Dave Charbauski, Consultant (Sugar Grove, Illinois) T is course will provide a basic


overview of the metalcasting process. Mar/Apr 2017 | METAL CASTING DESIGN & PURCHASING | 41


It will trace the path of a casting from quoting through shipping.


9:15-10:15 a.m. Development and Casting of High Cerium Content Aluminum Alloys (17-013) David Weiss, Eck Industries, Inc. (Mani- towoc, Wisconsin) This session will describe the


development and castability of near eutectic aluminum-cerium alloy systems. The castability ranking of the binary systems is as good as or better than the aluminum-silicon system with some deterioration as additional alloying elements are added. Production systems for melt- ing, de-gassing and other processing of aluminum-silicon or aluminum- copper alloys can be used without modification for conventional cast- ing of aluminum-cerium alloys.


Honorary Lecture: Survival in a Brave New World of Metalcasting (17-132) Kyle Metzloff , University of Wisconsin- Platteville (Platteville, Wisconsin) Will your foundry be around in


20 years? What is the difference between a growing and dying found- ry? What are the common themes in people, processes, technological innovation and adaptation that are keeping the top foundries relevant?


11:30 a.m.


Division Recognition Luncheon T is luncheon will feature the


presentation of the Best Paper and Division awards, as well as the Applied Research and Howard F. Taylor Awrd. (Ticket required.)


1:30-3 p.m. AFS Institute Course: Building Positive Buzz: Intentionally Shaping


Investment Casting Aluminum, Brass, Bronze & Al / SiC Metal Matrix Composite Alloys


Now casting 205-T7 (AMS 4471) The world’s STRONGEST commercially available cast aluminum alloy


AMVNJOVN t #rBTT t #ronzF t "* 4J$ ..$ t Turnkey .BDIJOJOH t Rapid Prototypes 600 Cannonball Lane O’Fallon, MO 63366 (636)272-6176 http://ofalloncasting.com


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