Basics for processing maps 上产克大睾 SHEAMGHAI DUD TONO UHTVEREETTY Dynamic materials model ●Prasad YVRK Prasad proposed processing map based on Dynamic materials model (DMM). ● A processing map consists of a superimposition of a power dissipation map and an instability map at different temperatures and strain rates.The basis of the processing maps is the dynamic materials model(DMM). The flow stress,when the strain and temperature are fixed,is given by: O=Kξm where K is a material constant,m is the strain rate sensitivity and can be expressed as follow: m=0(Ino)/(In) Institute of Forming Technology Equipment 11Basics for processing maps Institute of Forming Technology & Equipment Dynamic materials model 11  Prasad Y V R K Prasad proposed processing map based on Dynamic materials model (DMM).  A processing map consists of a superimposition of a power dissipation map and an instability map at different temperatures and strain rates. The basis of the processing maps is the dynamic materials model (DMM). The flow stress, when the strain and temperature are fixed, is given by： where K is a material constant, m is the strain rate sensitivity and can be expressed as follow: m   ln ln      m  K