State of the Art on Micromilling of Materials,a Review
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2012年第8期
论文作者：M.A.Cmara J.C. Campos Rubio A.M. Abro J.P. Davim
文章页码：673 - 685
摘 要：The trend towards miniaturization has increased dramatically over the last decade, especially within the fields concerned with bioengineering, microelectronics, and aerospace. Micromilling is among the principal manufacturing processes which have allowed the development of components possessing micrometric dimensions, being used to the manufacture of both forming tools and the final product. The aim of this work is to present the principal aspects related to this technology, with emphasis on the work material requirements, tool materials and geometry, cutting forces and temperature, quality of the finished product, process modelling and monitoring and machine tool requirements. It can be noticed that size effect possesses a relevant role with regard to the selection of both work material (grain size) and tooling (edge radius). Low forces and temperature are recorded during micromilling, however, the specific cutting force may reach high values because of the ploughing effect observed as the uncut chip thickness is reduced. Finally, burr formation is the principal concern with regard to the quality of the finished part.
M.A.Cmara1，J.C. Campos Rubio1，A.M. Abro1，J.P. Davim2
1. Department of Mechanical Engineering,Universidade Federal de Minas Gerais,Av.Ant onio Carlos,6627-Pampulha, Belo Horizonte MG,CEP:31.270-901,Brazil2. Department of Mechanical Engineering,University of Aveiro,Campus Universitrio de Santiago,3810-193,Aveiro,Portugal
摘 要：The trend towards miniaturization has increased dramatically over the last decade, especially within the fields concerned with bioengineering, microelectronics, and aerospace. Micromilling is among the principal manufacturing processes which have allowed the development of components possessing micrometric dimensions, being used to the manufacture of both forming tools and the final product. The aim of this work is to present the principal aspects related to this technology, with emphasis on the work material requirements, tool materials and geometry, cutting forces and temperature, quality of the finished product, process modelling and monitoring and machine tool requirements. It can be noticed that size effect possesses a relevant role with regard to the selection of both work material (grain size) and tooling (edge radius). Low forces and temperature are recorded during micromilling, however, the specific cutting force may reach high values because of the ploughing effect observed as the uncut chip thickness is reduced. Finally, burr formation is the principal concern with regard to the quality of the finished part.
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