金属3D打印在船用柴油机零配件制造中的应用

Application of Metal 3D Printing in Manufacturing of Marine Diesel Parts

船用柴油机中喷射系统及增压系统内部具有迷宫式的流道、内凹腔体,以及较多的精密偶部件,传统方式是通过铸造、机加工、焊接等工艺将诸多的零部件加工后装配而成,后期存在较大隐患。利用金属3D打印技术即增材制造技术,可实现复杂零件一体化、轻量化产品直接成形,减少对专业人员的依赖,使产品的设计自由度更高、生产工序更短,更加契合船舶柴油机动力系统降本增效、提升性能的真正需求。文章介绍了几种通过金属3D打印技术实现了船用柴油机关键零部件的制造。

The injection system and supercharging system of marine diesel engines are equipped with labyrinth flow channels, concave cavities, and many precision coupling parts. The traditional way is to process and assemble many parts through casting, machining, welding and other processes. There are great hidden dangers in the later period. The use of metal 3D printing technology, namely additive manufacturing technology, can realize the integration of complex parts and the direct forming of lightweight products, reduce the dependence on professionals, make the product design more free and the production process shorter, and more meet the real needs of reducing cost, increasing efficiency and improving performance of marine diesel power system. Several key parts of marine diesel engine manufactured by metal 3D printing technology are introduced.