在HP MJF 3D打印过程中最大限度地减少变形
Karel Ráž1, Zdeněk Chval1, Sacha Thomann2
1Faculty of Mechanical Engineering, Regional Technological Institute, University of West Bohemia, Univerzitni 8, 306 14 Plzen, Czech Republic.
Materials (Basel, Switzerland)
|December 9, 2023
概括
这项研究调查了惠特 - 帕卡德多喷气融合 (HP MJF) 3D打印,该研究发现零件位置显著影响变形. 模拟显示了预测和最小化尼龙塑料零件中这些关键扭曲的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 制造业 工程 制造工程
- 计算工程 计算工程
背景情况:
- 增材制造 (AM),特别是惠特 - 帕卡德多喷气融合 (HP MJF),是一种快速发展的技术,具有广泛的应用.
- 3D打印零件的变形是一个重大挑战,它会影响最终产品的性能,并需要缓解策略.
研究的目的:
- 在HP MJF 3D打印过程中调查和理解变形机制.
- 探索减少零件变形和提高3D打印元件质量的方法.
主要方法:
- 用玻璃珠注入尼龙塑料 (PA12GB) 制成的零件使用HP MJF技术打印.
- 随着时间的推移,通过在不同点测量标本来追踪变形.
- 使用Digimat软件 (AM,MF,FE,CAE模块) 进行了有限元模拟,并与实验结果进行了比较.
主要成果:
- 在HP MJF打印机中的部件打印位置显然会影响变形水平.
- 模拟表明,与单个部件相比,将多个部件打印在一起可以减少预测的变形 (5.7毫米对比7.19毫米).
- 在模拟 (3.44毫米 - 7.19毫米) 和现实世界变形 (3.44毫米) 之间存在显著差异,突出了变形预测的复杂性.
结论:
- 了解变形机制对于提高3D打印零件质量至关重要.
- 该研究提供了对影响变形的因素的见解,并探索了减少的技术.
- 这些发现可以指导对补偿技术的开发,以尽量减少HP MJF零件的扭曲.
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