汇报题目：参加The 18th International Symposium on Laser Precision Microfabrication (LPM2017) 参会报告

汇报时间：2017年6月14日(星期三) 15:00

汇报地点：科技园西五楼北A328会议室

汇报人：翟兆阳

会议名称：LPM 2017The 18th International Symposium on Laser Precision Microfabrication

会议时间：5-8June 2017

会议地点：Toyama, Japan

会议简介：Modern technology increasingly relies on miniaturization and microfabrication to improve the performance of a wide variety of devices and systems. Lasers and laser processing are uniquely suited to a wide variety of microfabrication applications in both production and research environments, making these topics of significant interest to researchers in both industry and academia.

The annual International Symposium on Laser Precision Microfabrication (LPM) provides a unique opportunity for researchers from a variety of fields to exchange ideas and techniques, and fosters discussion on fundamental aspects of laser-matter interaction and the state-of-the-art in laser materials processing among pure scientists, end users and laser manufacturers. We expect that LPM2017 would play an important role not only for understanding fundamental knowledge of laser precision microfabrication but also forecasting future technologies to be developed and the future laser market.

会议交流工作

Oralpresentation: Theoretical and experimental studies in laser manufacturing of micro/nano structures

报告人：翟兆阳

参加论文信息

Title: Experimental Study on Processing of Polyamide Bar with Femtosecond Laser

Author: Zhaoyang ZHAI, Wenjun WANG, Xuesong MEI, Xin ZHAO and Bo HAN

Abstract: Laser processing refers to cutting, welding, surface finishing and punching materials through the interaction between laser beam and substances. It can be used to process hard and brittle materials such as silicon nitride, ceramics and quartz, as well as flexible materials such polymers as plastics and rubber. The polyamide (PA66) bar was cut by 1064 nm nanosecond pulsed laser and 800 nm femosecond pulsed laser respectively. The comparison revealed that the thermal effect in the cutting by nanosecond pulsed laser was obvious, appearing noticeable etching defect while better effect was realized in the femtosecond laser cutting. The experimental comparison represented an optimal method of cutting polyamide bar, which can not only ensure the processing efficiency but reduce the heat accumulation of femtosecond laser pulses. The cutting effects were compared, providing a feasible technique for processing polyamides by femtosecond laser, the arithmetical mean height of the end surface can reach 5 μm. The application range of femtosecond laser processing is extended from microscopic to macroscopic.