This paper is an introduction to the melten material stacking forming technology.The extrusion forming and spraying forming is compared.The features and applications is gaven out.

• 介绍了熔融材料堆积成形技术，对熔融挤出堆积成形和熔融喷射堆积成形进行了对比，讨论了这一成形技术的特点和应用领域。