Experimental Study on Laser Cladding Remanufacturing Process of H13 Hot Forging Die Steel
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摘要: 热锻模具在工作过程中往往需要承受极高的温度和强烈的冲击负荷,极易受到磨损、腐蚀、热疲劳的影响而失效。本研究对H13热锻模具钢激光熔覆再制造技术进行了工艺实验研究,在H13模具钢表面制备了Inconel 625高温合金涂层,分析了涂层的微观组织以及力学性能。结果表明,工艺参数的改变对涂层的物相组成并未产生影响,熔覆层与基体有良好的冶金结合;当激光功率为1 200 W、扫描速度为200 mm·min-1、送粉速度为1.0 r·min-1时所获得的熔覆层具有最佳的显微硬度和高温耐磨性。通过汽车阶梯轴锻造模具再制造实验表明,熔覆涂层的磨损率相比于基体降低了28%,涂层的高温耐磨性明显高于基体的,激光熔覆Inconel 625涂层对模具再制造的服役寿命有着较大的提升。Abstract: The hot forging die often has to bear extremely high temperature and strong impact load in the working process, and it is very easy to fail due to wear, corrosion and thermal fatigue. In this study, the process experimentation of H13 hot forging die steel laser cladding technology is studied, and the Inconel 625 high-temperature alloy coating on the surface of H13 die steel is prepared. The microstructure and mechanical properties of the coatings are analyzed. The results show that the change of process parameters has no effect on the phase composition of the coating, and a robust metallurgical bond is established between the cladding layer and the substrate. The optimal microhardness and high-temperature wear resistance are achieved when the laser power is 1 200 W, the scanning speed is 200 mm·min-1, and the powder feeding rate is 1.0 r·min-1.Experimental results from the re-manufacturing of automotive stepped shaft forging dies demonstrate a 28% reduction in wear rate compared with the substrate, and the high-temperature wear resistance of the coating significantly exceeds that of the substrate. The laser-clad Inconel 625 coating has a substantial impact on the service life improvement of the die re-manufacturing.
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[1] CHANTZIS D, LIU X C, POLITIS D J, et al. Review on additive manufacturing of tooling for hot stamping[J]. The International Journal of Advanced Manufacturing Technology, 2020, 109(1): 87-107.
[2] 李中成, 潘成海, 董旭刚, 等. 焊接电流对等离子堆焊H13钢显微组织及裂纹的影响[J]. 应用激光, 2023, 43(3): 33-41. [3] ZHENG X W, ZHANG Y, CHEN Z Y, et al. Die wear analysis and pre-forging process optimization of hot forging for automobile flange fork[J]. The International Journal of Advanced Manufacturing Technology, 2023, 126(3): 1701-1716.
[4] 郑开魁, 林有希, 蔡建国, 等. 超声滚压工艺对模具钢激光熔覆层表面质量的影响[J]. 机械工程学报, 2022, 58(12): 111-120. [5] 孙宁, 方艳, 张家奇, 等. WC-12Co添加量对激光熔覆Inconel 625基复合材料微观组织和耐磨性能的影响[J]. 中国激光, 2021, 48(6): 0602106. [6] 张敏, 王新宝, 王浩军, 等. 激光熔覆TC4/Inconel 625/316L不锈钢梯度材料组织与性能[J]. 焊接学报, 2023, 44(7): 16-23. [7] YANG H F, SHI M T, ZHAO E L, et al. Microstructure evolution of laser cladded NiCrBSi coating assisted by an in situ laser shock wave[J]. Journal of Materials Processing Technology, 2023, 321: 118132.
[8] LIU Y P, LIANG Y L, FU H G. Improvement pro-perties of laser cladding Ni45-Cr3C2 coatings by adding B4C and V[J]. Materials Science and Technology, 2023, 39(4): 443-453.
[9] 王伟志, 马国政, 韩珩, 等. 激光熔覆陶瓷涂层研究现状与展望[J]. 机械工程学报, 2023, 59(7): 92-109. [10] LI C Y, XIA F F, YAO L M, et al. Investigation of the mechanical properties and corrosion behaviors of Ni-BN-TiC layers constructed via laser cladding technique[J]. Ceramics International, 2023, 49(4): 6671-6677.
[11] YAN Y N, LI J, LI R L, et al. Investigation into corrosive wear of the CoCrFeNiTax laser-clad coatings on TC4 in the neutral and alkaline circumstance[J]. Coatings, 2023, 13(1): 105.
[12] HAO J B, HU F T, LE X W, et al. Microstructure and high-temperature wear behaviour of Inconel 625 multi-layer cladding prepared on H13 mould steel by a hybrid additive manufacturing method[J]. Journal of Materials Processing Technology, 2021, 291: 117036.
[13] 赵菲, 刘子敬, 张杰, 等. 超细VC对激光熔覆H13合金显微组织和耐磨性的影响[J]. 表面技术, 2022, 51(2): 232-240. [14] 吴多利, 吴昊天, 孙珲, 等. 激光熔覆高温防护涂层研究现状及发展方向[J]. 中国腐蚀与防护学报, 2023, 43(4): 725-736. [15] SUN D, CAI Y C, ZHU L S, et al. High-temperature wear behaviour of ZrC/NbC-reinforced CrMnFeCoNi coatings[J]. Surface Engineering, 2022, 38(7-9): 778-785.
[16] JIAO X Y, WANG C M, GONG Z Q, et al. Effect of Ti on T15M composite coating fabricated by laser cladding technology[J]. Surface and Coatings Technology, 2017, 325: 643-649.
[17] LU K F, ZHU J, GUO D L, et al. Microstructures, corrosion resistance and wear resistance of high-entropy alloys coatings with various compositions prepared by laser cladding: a review[J]. Coatings, 2022, 12(7): 1023.
[18] 杨慧慧, 范芳雄, 刘鑫. ZCuAl8Mn14Fe3Ni2锻造开裂原因分析[J]. 材料开发与应用, 2023, 38(3): 59-62. [19] 王玮, 闫栋, 刘向前, 等. 镍基高温合金的扩散焊接研究进展[J]. 材料开发与应用, 2022, 37(5): 77-85. [20] RAJ D, MAITY S R, DAS B. State-of-the-art review on laser cladding process as an in situ repair technique[J]. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2022, 236(3): 1194-1215.
[21] HAO J B, YANG S, LE X W, et al. Bead morpho-logy prediction of coaxial laser cladding on inclined substrate using machine learning[J]. Journal of Manufacturing Processes, 2023, 98: 159-172.
[22] 李洪波, 高强强, 李康英, 等. 表面激光熔覆H13/NiCr-Cr3C2复合粉末熔覆层性能研究[J]. 中国激光, 2021, 48(18): 1802017. [23] 黄蕾, 周建忠, 徐家乐, 等. H13钢表面激光熔覆NiCr/Cr3C2涂层组织及其摩擦学性能[J]. 应用激光, 2019, 39(4): 556-562. [24] 崔忠圻, 刘北兴. 金属学与热处理原理[M]. 2版. 哈尔滨: 哈尔滨工业大学出版社, 2004. [25] 朱云天, 杜开平, 沈婕, 等. 激光能量密度对选区激光熔化(SLM)制品性能的影响及其机理研究[J]. 热喷涂技术, 2017, 9(2): 35-41. [26] 侯锁霞, 任呈祥, 吴超, 等. 激光熔覆层裂纹的产生和抑制方法[J]. 材料导报, 2021, 35(S01): 352-356.
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