全球首个3D打印#海上起重机吊钩#通过负载测试

接受80吨负载测试的3D打印海上起重机吊钩

图片/Huisman

今年1月初，由荷兰Huisman公司生产的全球首个3D打印的海上起重机吊钩成功通过了80公吨的负荷测试。Huisman公司表示，这是此类3D打印起重机吊钩产品首次进行这样严格的负荷测试，在此之前，起重机吊钩通常采用铸造或锻造技术制造。

Huisman公司称，3D打印技术将很容易成为“未来的新的制造技术。”3D打印的部件能大大减少交付时间，具有竞争成本优势，同时与锻造技术相比具有更稳定的质量。

长期以来，Huisman公司积极采用3D打印技术“丝弧添加剂制造”(WAAM)，用于制造采用高强度钢生产大中型尺寸起重机吊钩，包括大型四叉尖头吊钩，打印的重量可接近1000公斤。

WAAM能用于起重机吊钩，也能被Huisman公司用于制造其它复杂形状的部件。Huisman指出，此次的WAAM测试结果将有助于该公司制造可靠的部件。在不久的将来，该公司将进一步优化WAAM流程，降低成本价格，将制造能力提高至2500公斤的物件。

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丝弧添加剂制造

图片／RAMLAB

Huisman successfully load tests world’s first 3d printed offshore crane hook

In the first week of 2018, world’s first 3D printed offshore crane hook, manufactured by worldwide provider of step changing technical solutions Huisman, successfully passed its load test (80mt) and all associated quality control checks according to the strictest criteria. Crane hooks are typically manufactured by casting or forging techniques. Huisman’s 3D printing technology however catches up to what could become the new future manufacturing technology.

Huisman actively employs the 3D printing technique ‘Wire & Arc Additive Manufacturing’ (WAAM) to produce mid-size to large components with high grade tensile steel, including a large 4-prong hook, with an own printed weight close to 1,000kg. An important benefit for larger crane hooks is the significant reduction in delivery time at a cost that competes with forgings and castings, and a more consistent level of quality.

WAAM can be used for crane hooks, but also allows Huisman to manufacture other components with complex shapes, short delivery times or local alternative material properties, to improve for example wear and corrosion resistance. The positive WAAM testresults enable Huisman to manufacture reliable components that were physically impossible or commercially infeasible to produce before. In the near future Huisman aims to further improve the WAAM process by reducing the cost price for this technique and to increase manufacturing capabilities up to items of 2,500kg printed weight.

来源：中国船舶报