Abstract:Some defects easily occur in triangular brake pad during compacting,such as cracks and crush,which impacts on the properties of the green compact.Compacting process of triangular brake pad composed of copperbased powder metallurgy material was simulated by MSCMarc software,and the influence of different friction conditions,dwell time and other process conditions on stress distribution and relative density of brake pad was researched.The results show that the relative density of brake pads prepared by the bidirectional pressing is higher and welldistributed.The influences of friction coefficient on the relative density and the distribution of equivalent stress of the brake pad are larger,with smaller friction coefficient in the pressing process,the prepared triangular brake pad has more uniform density,smaller equivalent stress and more uniform equivalent stress distribution.While the holding time has small influence on the relative density and the distribution of equivalent stress of the brake pad.The original press process of the triangular brake pad is improved,a more economical and practical pressing process was put forward.