3D 打印阀块的优化设计减轻了重量、尺寸并提高了性能
技术
- 功能应用 - 制造执行系统 (MES)
适用行业
- 教育
- 设备与机械
适用功能
- 产品研发
- 销售与市场营销
用例
- 添加剂制造
- 快速原型制作
服务
- 培训
关于客户
本案例研究中的客户是 Nurmi Cylinders，这是一家总部位于芬兰的制造商，生产用于近海、工业、船舶和移动液压系统的液压缸产品。他们是该项目的资助者之一，提供了用于增材制造优化和重新设计的阀块。 Nurmi Cylinders 有兴趣探索增材制造为其产品带来的潜在优势，特别是在减少阀块所需材料的尺寸和数量，以及优化和改进阀块的内部通道以为客户生产更好的组件方面。在整个项目中，他们与 VTT 密切合作，为阀块的设计提供边界条件和额外的内部限制。
挑战
芬兰技术研究中心 (VTT) 的任务是根据增材制造要求优化和设计阀箱。该项目是探索芬兰增材制造可行性的更大计划的一部分。该阀块由芬兰液压缸产品制造商 Nurmi Cylinders 提供。目标是展示专门针对增材制造的设计必须是什么样子，才能充分受益于制造方法。目标是减小阀块的尺寸和所需材料的数量，并优化和改进阀块的内部通道，为客户生产更好的组件。然而，并非每个组件或产品都适合 3D 打印，具体取决于其尺寸、形式和设计以及所需的数量。阀块非常适合 3D 打印，并且在增材制造时在重量、性能和设计自由度方面具有很大的改进潜力。
解决方案
为了设计、优化和分析阀块，VTT 使用 Altair Engineering 的 HyperWorks® CAE 软件套件。套件中的优化工具和有限元求解器 OptiStruct® 是 VTT 的首选。该软件允许工程师定义设计空间及其限制，以及载荷和其他边界条件，优化工具则提出最佳设计。为了进一步优化阀块的性能，改变了内部流体通道的路线。最初，这些通道呈 S 形弯曲，横截面呈圆形。 VTT 与客户一起提出的解决方案是保持相同的横截面积，但改变通道的形状和路径。该项目的主要目标之一是为 SLM 创建“设计规则”。其中包括设计椭圆形或菱形通道而不是圆形通道等指南，因为这种设计不需要支撑结构，并且将产生可以使用 SLM 方法更好地打印的整体结构。
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