摘要
玻璃材料因具有一系列优异的物理化学性能而广泛应用于航空航天、汽车和集成电路等领域中,但其典型的高硬脆性特性会导致玻璃受热膨胀脆断,难以形成可靠的焊接接头。由于超快激光具有热效应小、形成非线性吸收的特点,因此是玻璃焊接的理想热源。介绍了超快激光焊接玻璃材料的原理和作用机制,详细分析了钠钙玻璃、硅酸盐玻璃和石英玻璃激光焊接的工艺特性和成形规律,通过玻璃焊接的模拟仿真分析了激光焊接玻璃的成形机制,并指出了超短脉冲激光焊接玻璃所面临的的挑战和发展方向。
Glass materials are widely used in aerospace,automotive and integrated circuit fields due to a series of excellent physical and chemical properties,but their typical high hard and brittle characteristics cause glass to expand and brittle when heated,and it is difficult to form reliable welding joints.Ultrafast lasers are an ideal heat source for glass welding due to their small thermal effect and the formation of nonlinear absorption.This paper introduces the principle and mechanism of ultrafast laser welding glass materials,analyzes the process characteristics and forming laws of soda-lime glass,silicate glass and quartz glass laser welding in detail,analyzes the forming mechanism of laser welded glass through the simulation of glass welding,and finally points out the challenges and development direction of ultrashort pulse laser welding glass.
作者
李世林
陈聪
LI Shilin;CHEN Cong(HNU College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082,Hunan,China)
基金
国家自然科学基金青年项目(52305356)
国家自然科学基金面上项目(52275486)。
关键词
玻璃
超快激光
焊接
非线性吸收
成形规律
glass
ultrafast laser
welding
nonlinear absorption
forming law
