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Indexed by:Journal Papers

Date of Publication:2015-01-01

Journal:International Journal of Materials and Product Technology

Included Journals:SCI、EI

Volume:81

Issue:9-12

Page Number:2067-2086

Key Words:micromilling;micromachining;micro-strip antenna;polyimide;surface copper layer;roughing milling;finishing milling;cutting parameters;surface quality;tool lifes;pindle speed;feed rate;cutting depth;burr size;warping degree;slot width

Abstract:The main objective of this study is to investigate the feasibility of machining the copper layer for micro-strip antenna with micro-milling technology and to find the optimal machining parameters. The main properties of the micro-strip antenna are related to the geometry accuracy of the copper layer attached to the dielectric substrate surface. In this paper, micro-milling technology is utilised to machine the copper layer for microstrip antenna. The milling process is divided into two steps: roughing and finishing milling. The influence of the micro-milling cutting parameters on the geometry quality of copper is investigated. The results show that micro-milling of copper layer on polyimide is feasible, reasonable micro-milling cutting parameters can improve the processing efficiency, ameliorate the surface quality and extend the tools' life. The main contribution of this paper to the related literature is to provide a new method to machining the copper layer for micro-strip antenna.