Tool-life criteria and wear behavior of single-edge ultra-small micro end mills

Prototypes of microfluidic systems are often produced via micro milling, and the thermoplastic commonly used as substrate is polymethyl methacrylate (PMMA). A key challenge when manufacturing those systems is the confection of the micro tools, whose geometric design is limited by the current lack of...

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Bibliographic Details
Published in:Precision engineering 2019-01, Vol.55, p.48-58
Main Authors: Reichenbach, Ingo G., Bohley, Martin, Sousa, Fabio J.P., Aurich, Jan C.
Format: Article
Language:English
Subjects:
Micro milling
Polymethyl methacrylate
Tool-life capability
Ultra-small micro end mills
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Summary:Prototypes of microfluidic systems are often produced via micro milling, and the thermoplastic commonly used as substrate is polymethyl methacrylate (PMMA). A key challenge when manufacturing those systems is the confection of the micro tools, whose geometric design is limited by the current lack of knowledge about the process itself, especially for applications requiring micro tools with diameters D ≤ 50 μm. In terms of productivity, the tool-life capability is restrained by the machining conditions and the finish quality. Typical requirements for the manufacture of microfluidic structures with ultra-small micro mills are structures with Ra 
ISSN:0141-6359
1873-2372
DOI:10.1016/j.precisioneng.2018.08.006