**Virtual Design of Piston Production Line**

Zhou Jun1,2,\*, Li Puhong1,2, Zhang Yanliang1,

Deng Jianxin1,2 and Liu Zhanqiang1,2 *1School of Mechanical Engineering Shandong University, Jinan, 2Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Shandong University), Ministry of Education, Jinan, P.R. China* 
