高强钢船体结构的增材制造技术

Additive Manufacturing Technology for High Strength Steel Ship Structures

针对船舶高强钢船体复杂曲面结构的特点和材料性能,从成本、增材制造速度、结构尺寸的角度出发,选出3D微铸锻技术作为船体结构增材制造方法,开展高强钢船体结构增材制造技术研究。对增材制造件进行无损探伤和力学性能测试。结果表明:试件的超声波探伤结果满足钢板要求,主要力学性能(拉伸性能、-40℃冲击功)高于EH36钢的性能指标。

By considering the structures characters and materials performance of the ship structure, from the point of cost, additive manufacturing velocity and structure size, the methods of 3D micro casting and forging technology was selected for ship structure electric arc additive manufacturing. The arc additive manufacturing for high tensile strength ship structure was carried out. The nondestructive test and mechanical performance test of additive manufacturing part were carried out. The results show that the ultrasonic detection results of the product satisfy the request of the ship steel, and the main mechanical performance (tensile property, -40℃ impact energy) is higher than that of the request for EH36 steel.