304不锈钢基体激光熔敷Co-Al-W合金工艺优化
Optimization of Process Parameters of Laser Cladding Co-Al-W Based Alloy on 304 Stainless Steel
夏天东1,2, 闫健强1, 徐仰涛1,2
点击：3314次 下载：0次
作者单位：(1. 兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室, 甘肃 兰州 730050; 2. 兰州理工大学 有色金属合金及加工教育部重点实验室, 甘肃 兰州 730050)
中文关键字：激光熔敷； 工艺优化； 正交试验； Co-Al-W合金
英文关键字：aser cladding; process optimization; orthogonal experiment; Co-Al-W based alloy
中文摘要：采用正交试验法研究了激光熔敷对304不锈钢基体上Co-Al-W合金熔敷层质量的影响，通过极差分析和方差分析， 评价了激光熔敷工艺参数对熔敷层质量影响的显著程度， 并对激光熔敷工艺参数进行了优化。结果表明，激光输出功率、 扫描速度对熔敷层成形的影响显著，而搭接率的影响程度较小。 对于Co ∶ Al ∶ W (原子比)为78 ∶ 12 ∶ 10的混合粉末，本试验条件下能够获得较好成形的激光熔敷工艺参数是：输出功率3 kW、扫描速度3 mm/s、搭接率10%。
英文摘要：The influences of laser cladding process on the quality of Co-Al-W based alloy coating on 304 stainless steel substrate were studied by orthogonal experiment. The extent of the influence on the quality of the coating was evaluated through the range analysis and variance analysis，and the process parameters of the laser cladding were optimized. The results show that the laser power and scanning speed affect the performance of coating shaping significantly，while overlapping has less influence on shaping. Under the experimental conditions, when Co ∶ A1 ∶ W proportion is 78 ∶ 12 ∶ 10(at), the optimized parameters are as follows: laser power 3 kW, scanning speed 3 mm/s, overlapping 10%.