Engineering and commercialization of equal channel angular extrusion (ECAE)

Engineering aspects of ECAE as a material processing technology is considered in details. Optimization of ECAE is provided by control of contact friction, the channel geometry, strain/strain rate, billet shape, punch/tool pressures. That also includes the optimal choice of processing route and number of passes for the effective solution of certain problems. Different concepts of tool design are analyzed and possible directions of process commercialization are discussed.