A novel approach to manufacturing lasers using ultrafast laser welding

使用超快激光焊接制造激光器的新方法

• 批准号: 1963753
• 金额: --
• 依托单位: Heriot-Watt University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1963753
• 关键词: novel; approach; manufacturing; lasers; using

This is a PhD research project in Physics. Ultrafast (picosecond, femtosecond) pulsed lasers have enabled welding processes to directly join highly dissimilar materials combinations (e.g. glass and metal). Such welding was previously thought to be impossible due to the very large difference in thermal expansion coefficients and hence thermally-induced cracking. From initial proof-of-concept experiments, Heriot-Watt have been working with Leonardo MW to convert the process into a robust manufacturing process, with a particular focus on welding borosilicate glass to Aluminium alloy Al6082. This industry-sponsored PhD project will build on this earlier research, focused on the application of such processes to the manufacture of a laser system. The use of this technology has important advantages, in particular removing the requirement for adhesives within the laser cavity. The proposed welding approach will also help to convert laser manufacturing from a skilled assembly process to a much lower cost automated manufacturing process.

这是一个物理学博士研究项目。超快（皮秒、飞秒）脉冲激光使焊接工艺能够直接连接高度不同的材料组合（例如玻璃和金属）。这种焊接以前被认为是不可能的，因为热膨胀系数的差异非常大，因此热致开裂。从最初的概念验证实验开始，Heriot-Watt一直与列奥纳多MW合作，将该工艺转化为稳健的制造工艺，特别关注将硼硅酸盐玻璃焊接到铝合金Al 6082上。这个由行业赞助的博士项目将建立在早期的研究基础上，专注于将这些过程应用于激光系统的制造。该技术的使用具有重要的优点，特别是消除了对激光腔内粘合剂的要求。所提出的焊接方法还将有助于将激光制造从熟练的组装过程转换为成本低得多的自动化制造过程。

项目成果

High yield direct fusion welding of glass and metal

玻璃和金属的高产量直接熔焊

• 发表时间: 2019
• 作者: Carter R

Towards industrial application of ultrafast laser microwelding.

超快激光微焊接的工业应用。

• 发表时间: 2018
• 作者: Carter R

Measurement of Stress Induced Birefringence of Direct Laser Bonded BK7 to Aluminium

直接激光键合 BK7 与铝的应力引起双折射的测量

• DOI: 10.1364/oft.2021.oth2b.2
• 发表时间: 2021
• 作者: Hann S

High yield ultrafast laser microwelding process for direct joining of metal-to-glass.

用于金属与玻璃直接连接的高产量超快激光微焊接工艺。

• 发表时间: 2019
• 作者: Morawska P

Stress induced birefringence of glass-to-metal bonded components

玻璃-金属粘合部件的应力引起的双折射

• DOI: 10.1117/12.2574219
• 发表时间: 2020
• 作者: Hann S