采用激光烧结成形技术研究了不同工艺参数对Fe-16%Ni金属粉末选区激光烧结成型件微观结构和致密性的影响。结果表明,随着脉冲宽度、扫描速度和铺粉厚度的增加,烧结后试样的密度先增加然后减少,随着扫描间距的增加,烧结后试样的密度减小。当脉冲宽度0.7 ms,扫描速度1000 mm/min,铺粉厚度0.15 mm,扫描间距0.15 mm时,烧结成型件成型质量较好。 The effects of different technological parameters on the microstructure and densification of the laser sintered compact of Fe-16% Ni metal powder were investigated by laser sintering technology. The results show that with the increase of pulse width, scanning speed and thickness of powder coating, the density of sintered samples first increases and then decreases. With the increase of scanning pitch, the density of sintered samples decreases. When the pulse width is 0.7 ms, the scanning speed is 1000 mm / min, the thickness of powder coating is 0.15 mm and the scanning pitch is 0.15 mm, the forming quality of the sintered molded parts is good.