Influence of cutting parameters in micromilling of moulds for micro-components

Abstract:

For decades, diversified products for various applications have been manufactured by utilization of metal machining processes. These processes have evolved and reached accuracy in the range of micrometers, allowing a new application field yet to be explored, especially in Brazil. However, with reduction of the dimensions, phenomena are affecting the machining processes, which are negligible in conventional machining. Challenges with materials, tool strength and size and minimum cutting volume become key concepts in micro machining. Some of these issues can be tackled through the study of cutting parameters and cutting strategies and their impact on the machining process. Within the scope of this work,micro-milling tests have been conducted to analyze the impact of cutting process parameter on surface quality of molds for micro-fluidic devices. With this objective in mind, experimentswere performed varying the main cutting process parameters resulting in surfaces with different topography and roughness. A statistical study was carried out to verify the influence ofcutting process parameters on the surface roughness of micro-milled components. Among the results, it was observed that the cutting parameters have different degrees of influence on roughness. In the investigated parameter range, the cutting depthand the cutting widthhave less influence allowing a degree of optimizationin terms of reduction of machining time with little influence on surface quality.


Reference:
TAMBORLIN, Marcelo Octavio; MEWIS, Jan; RAMOS, Luciana Wasnievski da Silva de Luca; SCHÜTZER, Klaus. Influence of cutting parameters in micromilling of moulds for micro-components. In: INTERNATIONAL SCIENTIFIC CONFERENCE ON PRODUCTION ENGINEERING – CIM, 16th., 2017, Zadar. Proceedigns… 9 p.

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