T/R modules are key parts of moden radars. In order to lighten T/R modules and match its thermal expansion, titanium alloy with high radio strength and lessthermal mechanical with ceraic material, is used to manufacture T/R module shells. Some important precision components, in order to meet the high specific strength, good corrosion resistance requirements must also be used titanium alloy material, such as the antenna of airborne radar base structure. The difficulties in the manufacture of the above two pa...