Comparative Experimental Investigation of Micro-channel Fabrication in Ti Alloys by Laser Ablation and Laser-induced Plasma Micro-machining

Reliable and improved micro-fabrication processes for high-strength alloys are needed due to their increasing use in micro-scale applications. Laser-Induced Plasma Micro-Machining (LIPMM) has been shown to have several advantages over conventional direct laser ablation. In this study micro-channels are fabricated in Ti-6Al-4V, one of the difficult-to-machine materials, to compare the micro-manufacturing capabilities of direct laser ablation to LIPMM. It has been shown that LIPMM results in much deeper channels and higher aspect ratios and better machining consistency than direct laser ablation.

由于高强度合金在微尺度应用中的使用日益增加，需要可靠且改进的微加工工艺。激光诱导等离子体微加工（LIPMM）已被证明相较于传统的直接激光烧蚀具有若干优势。在这项研究中，在难加工材料之一的Ti - 6Al - 4V中制造微通道，以比较直接激光烧蚀和LIPMM的微制造能力。结果表明，与直接激光烧蚀相比，LIPMM能产生深得多的通道、更高的纵横比以及更好的加工一致性。