Additive manufactured closed-cell aluminum alloy foams via laser melting deposition process

作者：Feng, Xiangru; Zhang, Zhuoqing; Cui, Xiufang^*; Jin, Guo; Zheng, Wei^*; Liu, Hongguang

来源：Materials Letters, 2018, 233: 126-129.

DOI：10.1016/j.matlet.2018.08.146

• Aluminum
• Porous materials
• Laser processing
• Additive manufacture

Compared with traditional preparation methods to fabricate aluminum foams, additive manufacturing technology have some advantages such as the ability to prepare complex shapes and relatively high processing efficiency. In this paper, laser melting deposition (LMD) process has been used to additive manufacture aluminum alloy foams (AAFs). During LMD process, Ni-coated TiH2 was used as the foaming agent. AAFs with different porosity and pore-size have been manufactured by LMD process. The pore size and porosity of AAFs are increasing with increasing addition of Ni-TiH2. The sound insulation measurement results indicate that porosity and pore-size have influence on sound-insulated capability. With pore size and porosity increasing, sound-insulated capability of AAFs show a trend of decreasing at first and increasing later.

• 出版日期2018-12-15
• 单位哈尔滨工程大学