Computer-Aided Manufacturing of Laminated Engineering Materials: Machine Design and Process Control

层压工程材料的计算机辅助制造：机械设计和过程控制

• 批准号: 9800187
• 负责人: Wyatt Newman
• 金额: $ 18.5万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-06-15 至 2001-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9800187&HistoricalAwards=false
• 关键词: Computer; Aided; Manufacturing; Laminated; Engineering

DMI-9800187 Newman CAM-LEM (Computer-Aided Manufacturing of Laminated Engineering Materials) is a new manufacturing process constituting a next-generation advance in the field of Rapid Prototyping. The CAM-LEM process steps are: analyze a CAD model in terms of contours of slice planes and in terms of surface tangents; feed and laser-cut sheet tape-cast materials per the computed edge tangents; robotically extract the desired slice regions and stack them to assemble 3-D parts, interleaved with complementary shapes of fugitive material for temporary supports; and post-process to achieve lamination, binder burn-out, fugitive burn-out and sintering to full density. The objective of this investigation is to determine whether CAM-LEM can achieve the performance necessary to become a viable manufacturing process. The investigation will identify and analyze the fundamental limits to CAM-LEM technology in terms of ultimate build speed, parts accuracy, maximum and minimum dimensions and aspect ratios achievable, and materials extensibility. Design studies and simulations will lead to the construction of a fast, accurate and reliable machine for the realization of automated CAM-LEM. If successful, this research will yield the enabling technology for the creation of a new, faster and more flexible manufacturing machine and process for direct fabrication of functional parts based on electronic descriptions.

纽曼CAM-LEM（层压工程材料的计算机辅助制造）是一种新的制造工艺，构成了快速成型领域的下一代进步。CAM-LEM过程步骤是：根据切片平面的轮廓和表面切线分析CAD模型;根据计算的边缘切线进给和激光切割片材带铸材料;机器人提取期望的切片区域并将它们堆叠以组装3D部件，与临时支撑件的临时材料的互补形状交错;和后处理以实现层压、粘合剂燃尽、短效燃尽和烧结至全密度。本研究的目的是确定CAM-LEM是否能够达到成为可行制造工艺所需的性能。 调查将确定和分析CAM-LEM技术在最终构建速度、零件精度、最大和最小尺寸和可实现的纵横比以及材料可扩展性方面的基本限制。 设计研究和模拟将导致一个快速，准确和可靠的机器，实现自动CAM-LEM的建设。 如果成功，这项研究将产生一种新的、更快、更灵活的制造机器和工艺，用于基于电子描述直接制造功能部件。