【作者】 杨洪涛； 张安峰； 张海洋； 侍行坤； 解航； 李涤尘；

【Author】 Yang Hongtao,Zhang Anfeng,Zhang Haiyang,Shi Xingkun,Xie Hang,Li Dichen (Xi’an Jiaotong University,Xi’an 710049,China)

【机构】 西安交通大学机械制造系统工程国家重点实验室；

【摘要】 在激光直接成形过程中,单道宽高比形貌特征直接决定着搭接率的选取,搭接率直接影响成形零件的致密度和力学性能。激光功率、扫描速度、送粉率是金属直接成形过程中最重要的参数,通过设计三因素三水平的正交试验,研究了上述3个工艺参数在Ti6A14V成形过程中对单道宽高比形貌的影响规律。实验结果表明:激光功率对单道的宽高比影响最大,扫描速度次之,送粉率影响最小。更多还原

【Abstract】 Single trace morphology of the aspect ratio directly determines the selection of lap rate in metal direct forming process,the lap rate suitable molded parts or not directly affects the density and mechanical properties.Laser power,scanning speed,powder feeding rate are the three most important parameters in metal direct forming.Three factors and three levels orthogonal experiments are designed to study the above three parameters in Ti6A14V forming process,the single trace aspect ratio morphology were investigated.Orthogonal experiment results showed that the laser power on the single trace aspect ratio greatest effect,followed by scanning speed,powder feed rate has with minimal effect.更多还原