International Journal of Metalcasting

, Volume 12, Issue 4, pp 689–696 | Cite as

Hoyt Memorial Lecture—Changing Perceptions: The Need for an “Unbalanced Force”

  • Daniel E. OmanEmail author


Perceptions are a function of information received from many different sources. These perceptions become firmly held beliefs that rarely, if ever, change. Today, the typical perception of the metalcasting industry is that of a smokestack industry utilizing low technology and lacking in challenging career opportunities. This perception has remained virtually unchanged since the 1970s. According to Newton’s First Law of Motion, an object moving in space continues to move in the same direction at a constant velocity in the absence of an unbalanced force. In the absence of an unbalanced force, perceptions also will not change. Over the past forty years many individuals have acted as an unbalanced force to change perceptions. This presentation will examine the common aspects of these efforts so that each of us can have an impact on perceptions.


foundry industry perceptions environmental issues foundry sludge beneficial use foundry sand USEPA 



The author would like to thank Mr. Tom Kunes of Kestrel Management (formerly with RMT, Inc.) for his contributions to this paper and more importantly his contributions to the metalcasting industry. He was a very significant mentor to me during the early years of my career and his contributions to AFS EHS research efforts were instrumental in making meaningful changes in the perception of the industry. He is the embodiment of an “unbalanced force.”


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Copyright information

© American Foundry Society 2018

Authors and Affiliations

  1. 1.Haley & Aldrich, Inc.Stephens CityUSA

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