Materials Science and Engineering

静态水辅助纳秒激光套料微孔加工

Static-water-assisted nanosecond laser trepan micro-drilling

A manufacturing process utilizing a stagnant water environment to cool and clean the workpiece during nanosecond infrared laser trepan drilling of Carbon fiber-reinforced plastic (CFRP) laminates, significantly reducing thermal damage and improving hole circularity. / 一种制造工艺，利用停滞的水环境在碳纤维增强塑料（CFRP）层压板纳秒红外激光套料钻孔过程中对工件进行冷却和清洁，显著减少热损伤并提高孔的圆度。

Knowledge type: 工艺技术
First proposed or discovered
Proposer: Turkey Farm member
Creator: 农场主
Last updated: 2026-11-12 23:05:34

Sub-knowledge points

Reduction of heat-affected zone (HAZ) by 92–93% (entry) and 70–78% (exit)Decrease in mean entry ovality from 8.63% to 4.68%Decrease in mean exit ovality from 40.48% to 27.45%Reduced fiber pull-out, fiber breakage, and fiber-matrix debonding

Higher-order knowledge points

Improved hole quality for mechanical fastening and assemblyEnhanced circularity of micro-holes in CFRP composites

Main parameters and performance indicators

Pulse width: 9, 13, and 17 nsScan speed: 40, 50, and 60 mm/sWater environment: Static (stagnant)Laser type: Nanosecond infrared

Open problems

Increased apparent taper angle (10.34° vs 8.40°)Reduced entry-side dimensional accuracy (entry overcut)Localized redeposited and thermally degraded epoxy

Related literature

ranked by community stars

Investigation of water-assisted nanosecond Laser machining of CFRP composites for improved quality hole fabricationOpen source

静态水辅助纳秒激光套料微孔加工

Sub-knowledge points

Higher-order knowledge points

Main parameters and performance indicators

Open problems

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