• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Integrating 3D layered manufacturing with photonic sintering, precision machining and smart coating techniques for rapid casting applications.
【24h】

Integrating 3D layered manufacturing with photonic sintering, precision machining and smart coating techniques for rapid casting applications.

机译：将3D分层制造与光子烧结，精密加工和智能涂层技术相结合，可用于快速铸造应用。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Developments in rapid casting technologies have led to a new era of inclusion of 3D printing. Three-Dimensional (3D) printing provides the flexibility and ease of reproducing a sand mold directly from CAD models, eliminating patterning steps, thus reducing the process time for creating prototypes. In addition to minimizing processing steps, 3D printing provides the advantages of higher precision and the ability to produce complex shaped sand molds, but it simultaneously possesses some limitations and concerns related to throughput, safety and logistics.;This study proposes an alternative method for creating sand molds by introducing a hybrid rapid prototyping approach to overcome the limitations observed for conventional 3D printing techniques. By this method, thermosetting resin-coated sand particles can be bonded layer-by-layer after being exposed to a high energy photonic light source, which raises the layer temperatures to a desired range for bonding directly followed by precision machining, to obtain complex shapes.;This study focuses on the determination of the physical, mechanical and thermomechanical properties of the printed layers and process functionality, while using both an additive and subtractive approach to selectively integrate machining with the high photonic curing mechanism and on the comparison of the achieved parameters to the results obtained using conventional sand casting techniques.
机译：快速铸造技术的发展开创了包含3D打印的新时代。三维（3D）打印为直接从CAD模型复制砂模提供了灵活性和便利性，省去了图案化步骤，从而减少了创建原型的过程时间。除了最小化加工步骤之外，3D打印还具有较高的精度和生产复杂形状的砂模的能力，但同时也存在一些与产量，安全性和物流有关的局限性和关注点。通过引入混合快速原型制作方法来克服传统3D打印技术所观察到的局限性，从而使砂模成型。通过这种方法，可以在暴露于高能光子光源之后将热固性树脂包覆的砂粒逐层结合，从而将层温度提高到所需的范围，以便直接结合并随后进行精密加工，从而获得复杂的形状。;这项研究侧重于确定印刷层的物理，机械和热机械性质以及工艺功能，同时使用加法和减法来选择性地将机加工与高光子固化机制集成在一起，并比较所获得的参数与使用常规砂型铸造技术获得的结果相比。

著录项

  • 作者

    Bohra, Hemant.;

  • 作者单位

    Western Michigan University.;

  • 授予单位 Western Michigan University.;
  • 学科 Chemical engineering.;Industrial engineering.
  • 学位 Ph.D.
  • 年度 2014
  • 页码 193 p.
  • 总页数 193
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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