Influence of Different Feeding Process on Laser Cladding Remanufacturing of Hydraulic Support
CAO Peng1, LEI Gaofeng2, SU Chengming1, SHU Linsen3, SHI Shuting3, JIA Beibei1, TIAN Weihong1
1 Xi'an Research Institute of Intelligent Remanufacturing Co.,Ltd., Xi 'an 710016, China 2 Xi'an North Qinghua Electromechanical Co., Ltd., Xi 'an 710025,China 3 School of Mechanical Engineering, Shaanxi University of Science and Technology, Hanzhong 723001,China
Abstract: Hydraulic support is an important equipment in fully mechanized coal mining system. Due to the complexity and particularity of the environment, it poses a serious threat to the service life and performance of hydraulic support. In order to improve the wear resistance of hydraulic support column, laser cladding technology is used to repair and strengthen the column surface. In this paper, single layer and multi-layer cladding coatings were prepared on the surface of hydraulic support column by coaxial powder feeding, side shaft powder feeding and wire cladding three feeding process. The mechanical properties of cladding layer with different feeding processes were analyzed. It is found that the order of surface hardness of samples is: coaxial powder feeding sample is larger than side shaft powder feeding sample, and larger than wire cladding sample, and the coating hardness obtained by coaxial powder feeding, side shaft powder feeding and wire cladding is 2.3 times, 2.2 times and 2.1 times of the substrate respectively. The stainless steel cladding layer with excellent properties can be obtained on the surface of column 27SiMn Steel by means of coaxial powder feeding, side axis powder feeding and wire cladding technology. Through the analysis and research of the cladding layer under three different feeding processes, it is found that the comprehensive performance of laser cladding of wire is better than that of powder laser cladding under the same processing parameters. In addition, the utilization rate of laser cladding is higher when repairing large-scale load-bearing equipment.
曹鹏, 雷高峰, 苏成明, 舒林森, 石舒婷, 贾北北, 田伟红. 不同送料工艺对液压支架激光熔覆再制造的影响[J]. 材料导报, 2021, 35(z2): 424-427.
CAO Peng, LEI Gaofeng, SU Chengming, SHU Linsen, SHI Shuting, JIA Beibei, TIAN Weihong. Influence of Different Feeding Process on Laser Cladding Remanufacturing of Hydraulic Support. Materials Reports, 2021, 35(z2): 424-427.