· Moldes y machos ·
Yusuke Matsuo*, Yoshiyuki Noda*, Kazuhiko Terashima*, Kunihiro Hashimoto**, Yuji Suzuki***
*Toyohashi Univ. of Technology; **Sintokogio, Ltd.; *** Aisin Takaoka Co., Ltd.
67th World Foundry Congress
Recently, a new method of a press casting using greensand mold was
proposed by our group as a means of ferrous casting. This method has
advantages in terms of energy savings and cost because a sprue cup and
runner channel are not needed. Still, it is important to pour accurately and
quickly in this method. Therefore, a feedforward outflow control is
presented by using a mathematical model and inverse dynamics. The
outflow is measured by a loadcell under the ladle. However, the loadcell
data has a large uncertainty that is caused by the tilting motion. Therefore,
a compensation for the loadcell is proposed. The determination of the
back-tilting time is optimized by a dichotomy method. Finally, the
effectiveness of the proposed system is shown through simulation and
experiment.
