铸造专业毕业论文
Computer Simulation for Casting Process of Rudder Arm
ABSTRACT
This article has introduced the principles and applications of numerical simulation of casting process. HUA ZHU CAE been used to imitate the temperature field in the casting process of the large rudder arm.. In this experiment, Solidworks, a three-dimensional modeling software, has been used to create the three-dimensional entity model of casting and riser, pour system, riser set, cold iron, etc and lead out files whose forms are STL as the interface files. And then Intecast has been used to imitate the computing. The simulation result is used as the basic of improving the casting technology of the rudder horn. In order to enhance the speed of solidification, cold irons are set up in the rib hot spot of rudder arm. And to improve the contraction compensation capacity of molten metal of the riser head, the insulating riser sleeve has been set up. Through the simulation analysis the original technology has been optimized. Utilizing the computer modeling technique to judge the rationality of casting technology and to assist the optimization of casting technology can overcome the shortcoming of the traditional method on craft design completely. That can improve design quality and shorten production cycle as well as reduce the production cost.
CITIC heavy machinery CO. adopted the optimized technology in the actual production. The results shows that cast of rudder arm with compact texture, high quality and satisfying parameters can be produced by properly setting the position and size of riser and cold iron, properly choosing perfusion system and parting plane，controling smelting and heat treatment process and ensuring that the cast accord to the principle of sequential solidification.
KEY WORDS： rudder arm, HUA ZHU CAE, shrinkage, process optimization