Production of Ultrafine Wire by Augmented Hydrostatic Extrusion

本研究的目的是对这一现象进行系统的研究 拉伸增强静液挤压生产 在现有设备上使用柔软材料制成超细线材。 的 计划将包括：（A）63，000的稳定性优化 磅/平方吋实验室用增强流体静力学单位 （B）超细线材的挤压; 包括流体动力润滑效应的过程;（C） 挤出超细粉的机组能力演示 铝、铝硅和金线，并用于包覆 陶瓷超导导线，包括实验研究， 确定减速比，模具角度，速度， 潜在的润滑/压力介质和其他变量 过程 实验和分析工作的结合 是这个项目的基础 分析将改善 了解过程，而实验阶段将 展示新信息和改进流程的效用 能力。 完整的程序将提供 增强静液挤压的能力和局限性， 超细钢丝的生产。 这项研究将扩大 速度上限和减少通过发展的 对过程的理解。 这种理解将导致 控制系统的算法开发，以及其 实施.

The purpose of this research is to perform a systematic study of drawing-augmented hydrostatic extrusion for the production of ultrafine wire from soft materials on an existing unit. The program will include: (A) Stability optimization of the 63,000 pound per square inch laboratory unit for augmented hydrostatic extrusion of ultrafine wires; (B) Upper-bound analysis of the process including hydrodynamic lubrication effects; (C) Demonstration of unit capabilities for extruding ultrafine aluminum, aluminum-silicon, and gold wire and for cladding of ceramic super-conductor wires, including experimental studies to determine the effects of reduction ratios, die angles, speed, potential lubrication/pressure media and other variables on the process. The combination of both the experimental and analytical work is fundamental to the program. The analysis will improve the understanding of the process, while the experimental phase will demonstrate the utility of new information and improved process capability. The complete program will provide a definition of the capabilities and limitations of augmented hydrostatic extrusion for the production of ultrafine wire. This research will extend the upper limits on speed and reduction through the development of the understanding of the process. This understanding will lead to the development of algorithms for the control system, as well as to its implementation.