High Temperature Stamping Forging to Fabricate Fully Densified Copper Tungsten and Copper Molybdenum Heat Sink Materials

In this paper, we studied the effect of high temperature forging on the densification of CuW and CuMo composite material after infiltration. Using SEM x-section, ultrasonic scan and hermeticity etc. to characterize the improved CuW and CuMo parts, we found out that the forged CuW and CuMo composite bodies were 100% fully densified and the hermeticity stabilized at 5x10-9 atm cc/s.