Fabrication of dumbbell shape microstructures by hot embossing through microporous mould

Author

Liu, Hang ; Hu, Hong

Author_Institution

Dept. of Mech. Eng. & Autom., Inst. of Technol., Shenzhen, China

fYear

2011

fDate

16-18 April 2011

Firstpage

341

Lastpage

344

Abstract

The effect of using hot embossing to fabricate the microstructures through microporous mould is investigated. An ultrasonic welding machine is used to study the characteristics of polymer under ultrasonic vibration. The sandwich placement of polymer slices and mould lead to the dumbbell shape microstructures. The stainless steel moulds with different diameter micropores are used. Different welding time are attempted to discover the micro flow and conjugation behavior of PE (Polyethylene) and PC (Polycarbonate) in micropores of the mould. The varied shapes of microstructures get from the different diameter micropores indicate the capillarity plays a role during the welding process.

Keywords

capillarity; crystal microstructure; embossing; hot working; microfabrication; moulding; polymers; porosity; stainless steel; ultrasonic welding; vibrations; welding equipment; capillarity; conjugation behavior; dumbbell shape microstructures; hot embossing; micro flow behavior; microporous mould; polycarbonate; polyethylene; polymer characteristics; polymer slices; sandwich placement; stainless steel moulds; ultrasonic vibration; ultrasonic welding machine; Acoustics; Embossing; Microstructure; Plastics; Polymers; Welding; hot embossing; micropore; microstructure;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on

Conference_Location

XianNing

Print_ISBN

978-1-61284-458-9

Type

conf

DOI

10.1109/CECNET.2011.5768754

Filename

5768754