Evaluation of Superficial and Dimensional Quality Features in Metallic Micro-Channels Manufactured by Micro-End-Milling

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This article focuses on a set of experiments in the micro-milling of channels made of aluminum, titanium alloys and stainless steel.

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18 p.

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Monroy-Vázquez, Karla P.; Attanasio, Aldo; Ceretti, Elisabetta; Siller, Héctor R.; Hendrichs-Troeglen, Nicolás J. & Giardini, Claudio April 3, 2013.

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Description

This article focuses on a set of experiments in the micro-milling of channels made of aluminum, titanium alloys and stainless steel.

Physical Description

18 p.

Notes

Abstract: Miniaturization encourages the development of new manufacturing processes capable of fabricating features, like micro-channels, in order to use them for different applications, such as in fuel cells, heat exchangers, microfluidic devices and micro-electromechanical systems (MEMS). Many studies have been conducted on heat and fluid transfer in micro-channels, and they appeared significantly deviated from conventional theory, due to measurement errors and fabrication methods. The present research, in order to deal with this opportunity, is focused on a set of experiments in the micro-milling of channels made of aluminum, titanium alloys and stainless steel, varying parameters, such as spindle speed, depth of cut per pass (ap), channel depth (d), feed per tooth (fz) and coolant application. The experimental results were analyzed in terms of dimensional error, channel profile shape deviation from rectangular and surface quality (burr and roughness). The micro-milling process was capable of offering quality features required on the micro-channeled devices. Critical phenomena, like run-out, ploughing, minimum chip thickness and tool wear, were encountered as an explanation for the deviations in shape and for the surface quality of the micro-channels. The application of coolant and a low depth of cut per pass were significant to obtain better superficial quality features and a smaller dimensional error. In conclusion, the integration of superficial and geometrical features on the study of the quality of micro-channeled devices made of different metallic materials contributes to the understanding of the impact of calibrated cutting conditions in MEMS applications.

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  • Materials, 2013. Basel, Switzerland: Multidisciplinary Digital Publishing Institute

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Publication Information

  • Publication Title: Materials
  • Volume: 6
  • Pages: 1434-1451
  • Peer Reviewed: Yes

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UNT Scholarly Works

Materials from the UNT community's research, creative, and scholarly activities and UNT's Open Access Repository. Access to some items in this collection may be restricted.

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  • March 1, 2013

Accepted Date

  • March 25, 2013

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  • April 3, 2013

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  • Sept. 17, 2017, 6:24 p.m.

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Monroy-Vázquez, Karla P.; Attanasio, Aldo; Ceretti, Elisabetta; Siller, Héctor R.; Hendrichs-Troeglen, Nicolás J. & Giardini, Claudio. Evaluation of Superficial and Dimensional Quality Features in Metallic Micro-Channels Manufactured by Micro-End-Milling, article, April 3, 2013; Basel, Switzerland. (digital.library.unt.edu/ark:/67531/metadc993387/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Engineering.