Ti-containing powder compacts is more susceptible to oxidation

Process Study showed that: ① sintered in a non-protective atmosphere containing Ti powder compacts is more susceptible to oxidation, powder for powder wettability is poor, wear resistance is lower. ② amount of  Diamond blade  increases (amount of the scanning speed decreases), is conducive to the densification of sintered parts and strong carbide forming elements on the diamond powder infiltration, but if the energy of the laser input line exceeds a certain threshold will result in  polycrystalline diamond . When the spot diameter is 8.5mm, the laser power of 550W, scanning speed 1100mm/min under sintering conditions, powder sintering tool has the best performance. ③ The same process parameters, since the laser  grinding wheel compacts composition non-uniformity, surface state powder and metal binding properties and differences. For the laser sintering process in a variety of different phenomena, the sintering mechanism were studied intensively