MEETINGS - BUSINESS - PEOPLE
MEETINGS
The Keith Millis Symposium will be held at the Orleans Hotel and Casino in Las Vegas, Nevada, October 20-23, 2008. The meeting will feature a full technical program.
BUSINESS
Flake skin formation in CGI castings presented at GIFA by Ashland
DUBLIN, Ohio – A research paper from Ashland Casting Solutions, a business group of Ashland Performance Materials, a division of Ashland Inc. (NYSE:ASH), presented at the GIFA international foundry trade exposition in Dusseldorf, Germany, addressed “flake skin” issues that can occur when foundries cast parts using compacted graphite iron (CGI).
“Our data show that conditions of slow cooling rates and an imbalance between spheroidizing and oxidizing elements at the mold metal interface promote formation of flake skin with lamellar graphite at the casting surface,” said Jörg Kroker, Ph.D., global technology director, Ashland Casting Solutions. “We need to continue research in this area because flake skin can decrease the strength and ductility of a cast CGI part.”
Industry data, reflecting cast iron usage, show that more CGI is being used to produce diesel engine blocks because of its combined strength, thermal conductivity and vibration dampening properties. The paper presented various scenarios testing the potential for CGI to form flake skin at the metal mold interface, and delivered suggestions of possible causes for flake skin formation.
Ashland Casting Solutions, a business group of Ashland Performance Materials, is a leader in supplying products, processes, services and technologies to the global metal casting marketplace.
Ashland Performance Materials, a division of Ashland Inc., is a worldwide manufacturer and supplier of specialty chemicals and customized services to the building and construction, packaging and converting, transportation, marine and metal casting industries. It is a technology leader in metal casting consumables and design services; unsaturated polyester and vinyl ester resins and gelcoats; and high-performance adhesives and specialty resins.
Ashland Inc. (NYSE: ASH), a diversified, global chemical company, provides quality products, services and solutions to customers in more than 100 countries. A FORTUNE 500 company, it operates through four divisions: Ashland Performance Materials, Ashland Distribution, Valvoline and Ashland Water Technologies. To learn more about Ashland, visit www.ashland.com.
Ashland research shows virtual core optimization in castings reduces scrap
DUBLIN, Ohio – Improper filling of a metal casting tool with sand can lead to an increase in scrap potential. A research paper from Ashland Casting Solutions, a business group of Ashland Performance Materials, a division of Ashland Inc. (NYSE:ASH), presented at the GIFA international foundry trade exposition in Dusseldorf, Germany, supports using a virtual approach to core production and blow tube and vent locations.
“Filling multiple impression core boxes has been a struggle for many foundries over the years,” said Nigel Yeomans, project manager, Ashland Casting Solutions. “By utilizing a virtual approach to this issue, foundries can better design the sand blowing profile and optimize their sand magazine design.”
The research presented at GIFA, provided participants insight to blowing difficulties associated with sand magazines. The research presented a series of experiments and computational process simulations to address sand magazine performance. In addition, discussions of computational analyses to optimize blow tube and vent locations for core filling, tool wear and density, and curing analysis were presented.
Ashland Casting Solutions, a business group of Ashland Performance Materials, is a leader in supplying products, processes, services and technologies to the global metal casting marketplace.
Ashland Performance Materials, a division of Ashland Inc., is a worldwide manufacturer and supplier of specialty chemicals and customized services to the building and construction, packaging and converting, transportation, marine and metal casting industries. It is a technology leader in metal casting consumables and design services; unsaturated polyester and vinyl ester resins and gelcoats; and high-performance adhesives and specialty resins.
PEOPLE
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