Vague集在Cr12MoV钢激光淬火工艺优化中的应用

提出了正交试验和Vague集相结合的Cr12MoV工具钢工艺参数优化方法。以激光功率、扫描速度、搭接率、黑漆涂层厚度为优化工艺参数, 以淬火后材料表面硬度、淬层深度、淬层相对磨损量和腐蚀速度为综合工艺优化目标。首先进行了正交试验获得数据样本, 然后借助Vague集理论对数据进行分析处理实现对工艺参数的优化。先进行单工艺目标优化, 再通过单工艺目标权重求和进行综合工艺目标优化, 将多目标优化问题转化为单目标优化问题。优化结果为: 激光功率1400 kW、扫描速度15 mm/s、搭接率40%、涂层厚度60 μm。验证试验结果表明, 优化工艺参数使淬火层硬度提高了1.62%, 相对磨损量下降了9.84%, 腐蚀速度下降了9.26%, 淬层深度仅减小1.33%。

Abstract

An optimization method of laser quenching process parameters of Cr12MoV die steel is proposed based on the orthogonal experiment and Vague set. The laser power, scanning speed, overlap rate, black paint thickness are taken as optimizing process parameters, while the quenching layer surface hardness after quenching, quenching layer depth, relative wear rate and corrosion rate of quenching layer are taken as integrated process optimization objectives. Orthogonal experiment is first carried out to obtain the data samples, and then the data are analyzed and processed by the Vague set theory to realize the optimization of process parameters. The optimization of single process is first carried out, and then comprehensive process optimization is taken through single process objective weight sum, where the multi-objective optimization problem is transformed into a single objective optimization problem. The optimization results are listed as laser power of 1400 kW, scanning speed of 15 mm/s, lap ratio of 40%, and coating thickness of 60 μm. Test experimental results indicate that the optimization of process parameters make the hardness of quenching layer increase by 1.62%, the relative abrasion value decrease by 9.84%, the corrosion rate decrease by 9.26%, and the quenching layer depth only decrease by 1.33%.

参考文献

[1] 尹燕, 魏小红, 张瑞华, 等. GCr15光纤激光淬火工艺及性能研究［J］. 激光与光电子学进展, 2013, 50(4): 041401.

Yin Yan, Wei Xiaohong, Zhang Ruihua, et al. Surface quenching of GCr15 steel by fiber laser［J］. Laser & Optoelectronics Progress, 2013, 50(4): 041401.

[2] 李艳丽, 李玲, 刘欣, 等. 激光淬火对焊缝热影响区耐腐蚀性能的影响［J］. 激光与光电子学进展, 2012, 49(7): 071404.

Li Yanli, Li Ling, Liu Xin, et al. Study on corrosion resistance property of welding HAZ treated by laser surface quenching［J］. Laser & Optoelectronics Progress, 2012, 49(7): 071404.

[3] 张亚龙, 徐新成, 杨向东, 等. 激光表面淬火对H13钢显微组织及性能的影响［J］. 热加工工艺, 2014, 43(8): 53-55.

Zhang Yalong, Xu Xincheng, Yang Xiangdong, et al. Effects of laser surface hardening on microstructure and properties of H13 steel［J］. Hot Working Technology, 2014, 43(8): 53-55.

[4] 苏辉, 马冰, 依颖辉, 等. 42CrMo钢激光淬火组织和硬度的研究［J］. 兵器材料科学与工程, 2011, 34(2): 84-86.

Su Hui, Ma Bing, Yi Yinghui, et al. Research on microstructure and hardness of 42CrMo steel by laser quenching［J］. Weapon Materials Science and Engineering, 2011, 34(2): 84-86.

[5] 侯琦, 刘广鑫, 杨光, 等. MoCr铸铁激光淬火组织及磨损性能研究［J］. 应用激光, 2015, 35(6): 657-660.

Hou Qi, Liu Guangxin, Yang Guang, et al. Study on microstructure and wear properties of MoCr cast iron by laser quenching［J］. Application of Laser, 2015, 35(6): 657-660.

[6] 吴钢, 宋光明, 黄婉娟. 激光淬火工艺参数对层深及硬度影响敏感性研究［J］. 激光技术, 2007, 31(2): 63-66.

Wu Gang, Song Guangming, Huang Wanjuan. Study on the influence of laser quenching process parameters on the depth and hardness of the layer［J］. Laser Technology, 2007, 31(2): 63-66.

[7] 林继兴, 曹洪钢, 牛丽媛, 等. 基于正交试验的H13模具钢半导体激光淬火工艺优化［J］. 应用激光, 2015, 35(3): 314-318.

Lin Jixing, Cao Honggang, Niu Liyuan, et al. Optimization of semiconductor laser quenching process for H13 die steel based on orthogonal experiment［J］. Application Laser, 2015, 35(3): 314-318.

[8] 王文昌, 谢春洋, 孔德军. 激光淬火对Cr12MoV钢渗硼层摩擦与磨损性能的影响［J］. 常州大学学报(自然科学版), 2015, 27(4): 47-52.

Wang Wenchang, Xie Chunyang, Kong Dejun. The laser quenching effect of friction and wear properties of boronizied layer of Cr12MoV steel［J］. Journal of Changzhou University (Natural Science Edition), 2015, 27(4): 47-52.

[9] 李胃胜, 刘冬. 基于联系数Vague集方法的城市环境空气质量评价［J］. 中国科技信息, 2015, 17(6): 53-55.

Li Weisheng, Liu Dong. Evaluation of urban environmental air quality based on contact number Vague set method［J］. China Science and Technology Information, 2015, 17(6): 53-55.

[10] 王鸿绪. 单值数据转化为Vague值数据的定义和转化公式［J］. 计算机工程与应用, 2009, 45(18): 42-44.

Wang Hongxu. The definition and transformation formula of single valued data into Vague data［J］. Computer Engineering and Application, 2009, 45(18): 42-44.

舒服华. Vague集在Cr12MoV钢激光淬火工艺优化中的应用[J]. 激光与光电子学进展, 2017, 54(1): 011403. Shu Fuhua. Application of Vague Set in Process Optimization of Laser Quenching of Cr12MoV Steels[J]. Laser & Optoelectronics Progress, 2017, 54(1): 011403.

Vague集在Cr12MoV钢激光淬火工艺优化中的应用

关于本站 Cookie 的使用提示

全站搜索

Vague集在Cr12MoV钢激光淬火工艺优化中的应用

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索