• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >Cold Isostatic Pressing to Improve the Mechanical Performance of Additively Manufactured Metallic Components
【2h】

Cold Isostatic Pressing to Improve the Mechanical Performance of Additively Manufactured Metallic Components

机译：冷等静压以提高增材制造的金属部件的机械性能

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Additive manufacturing is becoming a technique with great prospects for the production of components with new designs or shapes that are difficult to obtain by conventional manufacturing methods. One of the most promising techniques for printing metallic components is binder jetting, due to its time efficiency and its ability to generate complex parts. In this process, a liquid binding agent is selectively deposited to adhere the powder particles of the printing material. Once the metallic piece is generated, it undergoes a subsequent process of curing and sintering to increase its density (hot isostatic pressing). In this work, we propose subjecting the manufactured component to an additional post-processing treatment involving the application of a high hydrostatic pressure (5000 bar) at room temperature. This post-processing technique, so-called cold isostatic pressing (CIP), is shown to increase the yield load and the maximum carrying capacity of an additively manufactured AISI 316L stainless steel. The mechanical properties, with and without CIP processing, are estimated by means of the small punch test, a suitable experimental technique to assess the mechanical response of small samples. In addition, we investigate the porosity and microstructure of the material according to the orientations of layer deposition during the manufacturing process. Our observations reveal a homogeneous distribution independent of these orientations, evidencing thus an isotropic behaviour of the material.
机译：增材制造正在成为一种具有很大前景的技术，该技术可以生产具有传统设计方法难以获得的具有新设计或新形状的组件。用于打印金属部件的最有前途的技术之一是粘合剂喷射，这是因为它的时间效率高并且能够生成复杂的零件。在该过程中，选择性地沉积液体粘合剂以粘附印刷材料的粉末颗粒。一旦产生了金属件，它就进行后续的固化和烧结过程以增加其密度（热等静压）。在这项工作中，我们建议对制造的零件进行额外的后处理，包括在室温下施加高静水压力（5000 bar）。这种后处理技术，即所谓的冷等静压（CIP），已显示出可增加增材制造的AISI 316L不锈钢的屈服载荷和最大承载能力。带有或不带有CIP加工的机械性能，通过小冲孔试验进行估算，这是一种评估小样品机械响应的合适实验技术。此外，我们根据制造过程中层沉积的方向研究材料的孔隙率和微观结构。我们的观察结果揭示了独立​​于这些方向的均匀分布，从而证明了材料的各向同性行为。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号