Wen Chen Xiaoxun Zhang Zhenshan Cui Numerical Simulations of Open-Die Forging Process for Manipulator Design. 650-658 2008 ICIRA (2) http://dx.doi.org/10.1007/978-3-540-88518-4_70 conf/icira/2008-2 db/conf/icira/icira2008-2.html#ChenZC08