Title :
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
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;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5768754
