Advanced Engineering of Materials Through Lasers
Advanced Engineering of Materials Through Lasers
复制标题
通过激光进行先进的材料工程
DOI：
10.1007/978-3-031-03830-3_3
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Marimuthu S
中科院分区：
文献类型：
--
作者：
Marimuthu S
激光切割是一种广泛用于制造金属和合金航空航天部件的材料加工技术。在过去的几年里，人们对开发用于高温和低温航空发动机部件的陶瓷基复合材料（CMC）基材料越来越感兴趣。这是由于它们优异的热性能和结构性能。然而，由于 CMC 等各向异性复合材料的熔化温度高，以及树脂/基体和纤维的物理和热性能差异，激光加工很困难。本章讨论使用三种激光系统（纳秒水射流引导激光、毫秒脉冲激光和连续波激光）对氧化物-氧化物（Ox-Ox）和碳化硅（SiC）基CMC进行激光切割，以了解它们在不同工艺条件下的可加工性。与毫秒脉冲激光切割相比，连续波激光切割表现出更好的切割速度和切割质量。水射流引导激光切割可提供出色的切割质量，但总体切割速度明显低于连续波激光。
Laser cutting is a material processing technique widely used for manufacturing metal and alloy aerospace components. Over the last few years there has been an increasing interest in exploiting ceramic matrix composite (CMC) based materials for both high and low-temperature aero-engine components. This is due to their superior thermal and structural properties. However, laser processing of anisotropic composites such as CMC is difficult due to its high melting temperature, and the differences in the physical and thermal properties of the resin/matrix and fibre. This chapter discusses laser cutting of oxide-oxide (Ox-Ox) and silica carbide (SiC) based CMCusing three laser systems (nanosecondwater-jetguided laser, millisecondpulse laser, and continuous wave laser) to understand their machinability under different process conditions. Continuous wave laser cutting demonstrates better cutting speed and cut quality compared to millisecondpulse lasercutting. Water-jetguided laser cutting offers excellent cutting quality however overall cutting speedsare significantly lower than the continuous wave laser.