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Rapid Manufacturing of Microscale Thin-walled Structures by Phase Change Workholding Method  

Shin, Bo-Sung (부산대학교 ERC/NSDM)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.9, 2005 , pp. 188-193 More about this Journal
Abstract
To provide the various machining materials with excellent quality and dimensional accuracy, high -speed machining is very useful tool as one of the most effective rapid manufacturing processes. However, high-speed machining is not suitable for microscale thin-walled structures because of the lack of the structure stiffness to resist the cutting force. A new method which is able to make a very thin-walled structure rapidly will be proposed in this paper. This method is composed two processes, high-speed machining and filling process. Strong workholding force comes out of the solidification of filling materials. Low-melting point metal alloys are used in order to minimize the thermal effect during phase change and to hold arbitrary shape thin-walled structures quickly during high-speed machining. To verify the usefulness of this method, we will show some applications, for examples thin -wall cylinders and hemispherical shells, and compare the experimental results to analyze the dimensional accuracy of typical parts of the structures.
Keywords
Filling Process; Low-melting Point Metal Alloys; High-speed Machining; Thin-walled Structures; Phase Change;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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