Development of a new apparatus for ultrasonic vibration-assisted glass hot embossing process

NCUTIR > College of Engineering > Department of Mechanical Engineering > 【機械工程系】期刊論文 > Item 987654321/5796

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Title:	Development of a new apparatus for ultrasonic vibration-assisted glass hot embossing process
Authors:	Jung-Chung Hunga, Yen-Pin Tsaib, Chinghua Hung
Contributors:	圖書館
Keywords:	Ultrasonic vibration Glass hot embossing
Date:	2013-01-01
Issue Date:	2016-10-13 14:55:41 (UTC+8)
Abstract:	A new apparatus for an ultrasonic vibration-assisted glass hot embossing process has been developed. The upper die constitutes the ultrasonic vibrating device, and a cooler is provided to protect the transducer from the high operating temperatures. An ultrasonic horn originally designed for use at room temperature was modified to ensure correct operation of ultrasonic vibrating device for high temperature use. Because the load cell is located inside a vacuum chamber, the detection of the force applied to the glass during the forming process is not significantly impacted by external forces, and thus, a precise force history of the forming glass can be obtained. Flat hot embossing experiments were performed to investigate the effect of ultrasonic vibration on the amount of force required during forming, and Fresnel structure hot embossing experiments were then conducted to investigate the improvement in molding accuracy gained through ultrasonic vibration. The experimental results are taken to validate the manufacturing potential of the developed apparatus and the improvement in formability achieved by applying ultrasonic vibration.
Relation:	Precision Engineering
Appears in Collections:	[Department of Mechanical Engineering] 【機械工程系】期刊論文

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