热等静压消除金属增材制造构件孔隙的研究进展

Research progress of hot isostatic pressing to eliminate the pores in metal parts prepared by additive manufacturing

摘要:

为消除激光选区熔化、电子束熔融等金属增材制造技术制备的构件内孔隙缺陷对使用性能的不利影响，满足航空、航天和医疗等行业对金属增材制造件的迫切需求，热等静压作为重要的后处理手段得到了广泛应用．综述对近期科研人员利用热等静压消除金属增材制造孔隙的效果评价和机理的分析进行了阐述，进而为金属增材制造构件实施热等静压处理提出了一些建议．

Abstract:

In order to eliminate the adverse effect of pore defects in components prepared by additive manufacturing technologies such as selective laser melting and electron beam melting on the properties, and to meet the urgent needs of aviation, aerospace, medical industries for metal additive manufacturing product, hot isostatic pressing (HIP) has been widely used as an important post-processing method. The latest evaluation the effect and mechanism analysis of HIP to eliminate pores in metal parts prepared by additive manufacturing technique are reviewed. The suggestions of HIP treatment for metal additive manufacturing part are also put forward.