INDUSTRY NEWS/行業新聞 Aarrowcast Wins AFS/Metalcasting Design & Purchasing Competition Aarrowcast Inc., Shawano, Wis., has won the 2014
Aarrowcast公司农机部件荣获美国2014年度铸件奖 Aarrowcast公司（威斯康辛州，沙瓦诺）为John
American Foundry Society (AFS)/Metal Casting Design & Purchasing Magazine Casting of the Year award for its ductile iron oil pan produced for a John Deere 9-liter engine. Te 842-lb. casting is the result of collaborative effort between supplier and customer to achieve weight reduction while meeting the application’s strength requirements. Te agriculture component combined a frame casting,
two fabricated brackets and a stamped steel oil pan. Trough a combination of finite element analysis and solidification simulation, the design team achieved a 77-lb. weight reduc- tion while still accommodating a 60-horsepower increase in the engine. Because of the compact design of the oil pan casting, the package allowed for a lower engine position in the tractor chassis and eliminated a 2-degree angle. Te vol- ume of oil accommodated by the oil pan was increased over the original steel stamping. Aarrowcast used 11 interlocking cores to establish dimen-
sional repeatability and designed a gating strategy that pro- vided low velocity and turbulence during feeding of molten metal into the casting to achieve quality requirements. “Te casting illustrates an increased use of castings that
are structural and functional into one piece,” said one of the casting competition judges. “It combines parts from several processes into one casting with complex coring.” Te AFS/Metal Casting Design & Purchasing Maga- zine Casting Competition is held every year to give North American metalcasting facilities the chance to show the engineering and purchasing community what a cast metal part can accomplish. Aarrowcast was recognized for its winning casting during
the President’s Brunch April 10 at the 118th AFS Met- alcasting Congress in Schaumburg, Ill. Six other castings were honored as Best in Class or Hon- orable Mention winners.
Best in Class: Aristo-Cast Inc., Almont, Mich., for a magnesium invest-
ment cast electronics mount for the aerospace industry. Pier Foundry & Pattern Shop, St. Paul, Minn., for a duc-
tile iron green sand cast hub used in the mining industry. Signicast Investment Castings, Hartford, Wis., for a steel
investment cast knife blade holder for a thresher used in farming. Tooling & Equipment International, Livonia, Mich., for an aluminum water passage cast via low pressure permanent mold casting that integrates cooling system parts for an automotive application.
Honorable Mention:
O’Fallon Casting, O’Fallon, Mo., for an aluminum fan housing used on a commercial helicopter. Meritor Design, Troy, Michigan, for a ductile iron green sand cast subframe used in a military application. ■
Deere公司制造的9L发动机球墨铸铁油底壳，在2014 美国铸造协会《铸造设计和采购》杂志举办的铸件 评比中夺魁，荣膺年度铸件奖。这个重达842磅（约 382kg）的铸件是供应商和客户共同努力的成果，不仅 达到了强度的要求，还减轻了铸件重量。 这个农机部件将一个结构框架铸件、两个组装支架 和一个冲压钢质底壳组合起来。通过有限元分析和凝 固模拟的共同辅助，设计团队实现了将铸件重量减轻 77磅（约35kg），同时，发动机动力增加60马力。油 底壳铸件的紧凑整体化的设计，使发动机在拖拉机底 盘中处于较低的位置，并且不再需要2度的倾斜角度。 铸态油底壳的容量比原来的冲压钢质油底壳扩大了。 Aarrowcast使用11个连锁芯以实现尺寸的一致性， 并且通过独到的浇注系统的设计，使金属液浇注入铸件 时保持低速并降低紊流，从而达到产品的质量要求。 “该铸件说明了结构化和功能化合一铸件的应用越 来越多，”一位铸件评比的评委说：“其使用复杂的 砂芯作用将多个工艺过程的部件整合为一个铸件。” 一年一届的由美国铸造协会《铸造设计和采购》杂 志举办的铸件评比，为北美地区的铸造企业提供了向 工程和采购商展示铸件新成果的机会。 Aarrowcast公司的获奖是在4月10日，即第118届美 国铸造协会铸造大会（伊利诺伊州，绍姆堡）期间的 主席早午餐会上宣布的。
另外还有6个铸件获得 “优胜奖”或“荣誉奖”。
优胜奖： Aristo-Cast公司（密歇根州，阿尔蒙特）：用于航 空航天工业的精密铸造的电子底座镁合金铸件。 Pier铸造和造型厂（明尼苏达州，圣保罗）：用于 采矿业的采用湿型砂生产的轮毂球墨铸铁件。 Signicast精密铸件公司（威斯康辛州，哈特福特） ：用于脱粒机刀刃支架的精密铸钢件。. 模具和设备国际公司（密歇根州，立沃尼亚）：低 压金属型铸造工艺的水管铝铸件，应用于汽车领域， 整合了冷却系统的部件。 荣誉奖：
奥法隆铸件公司（密苏里州，奥法隆）：用于商用 直升机的风扇罩铝铸件。
美驰设计公司（密歇根州，特洛伊）：湿型砂生产 的军用球墨铸铁支架。 ■
September 2014
FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 33
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