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为了避免刀具切削钴结壳时产生冲击载荷,提出了深海钴结壳水射流切削方法。采用仿真计算和实验测试研究了水射流系统参数与其切削性能的作用规律。仿真结果表明:水射流系统的工作压力、喷距和喷射角度是决定水射流切削能力的主要参数;其重要程度依次为工作压力、喷距和喷射角度;提高水射流系统工作压力是提高射流切削能力最有效的方法;在射流工作压力一定的情况下,为了提高射流的切削能力,射流的喷距宜小于4 mm(4倍喷嘴直径)内,射流的喷射角度约为13°。实验结果表明:提高射流的工作压力可以显著提高射流的切削能力,减小射流的喷距有助于提高射流的切削能力,射流的最优喷射角度约为13°。
In order to avoid the impact load when the tool cuts the cobalt crust, a deep sea cobalt crust water jet cutting method is proposed. The effects of parameters of water jet system and its cutting performance are studied by simulation and experiment. The simulation results show that the working pressure, jet distance and spray angle of water jet system are the main parameters that determine the cutting ability of water jet. The order of importance is the working pressure, jet pitch and jet angle. Improving the working pressure of water jet system is to improve the jet cutting In order to improve the cutting ability of the jet, the jet distance should be less than 4 mm (4 times the nozzle diameter) and the jet angle is about 13 ° under certain jet pressure. The experimental results show that increasing the working pressure of the jet can significantly improve the cutting ability of the jet. Reducing the jet distance can improve the cutting ability of the jet. The optimal jet angle of the jet is about 13 °.