Performance assessment of HEPA filter against radioactive aerosols from metal cutting during nuclear decommissioning

Lee, Min-Ho; Yang, Wonseok; Chae, Nakkyu; Choi, Sungyeol

doi:10.1016/j.net.2019.10.017

Cited by 15 publications

(1 citation statement)

References 13 publications

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“…There are many important parameters of the AWJ cutting, including but not limited to jet pressure, nozzle diameter, cutting speed, and cutting angle. These parameters directly bear on the cutting efficiency and effect, and the surface roughness of the target [5][6][7][8]. Owing to the unique features of the CFRP, the AWJ cutting of the CFRP follows a quite different law from that of the AWJ cutting of conventional materials.…”

Section: Introductionmentioning

confidence: 99%

Orthogonal Experiment on the Surface Quality of Carbon Fiber Reinforced Plastic Cut by Abrasive Water Jet

Yang¹,

Feng²

2020

RCMA

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The abrasive water jet (AWJ) is an immensely popular tool to machine hard-to-cut materials. Taking the surface roughness as the metric of cutting quality, this paper designs and implements an orthogonal experiment for the AWJ cutting of carbon fiber reinforced plastic (CFRP), a lightweight composite widely adopted for high-precision applications. Four factors that affect cutting quality, namely, target distance, pump pressure, nozzle traversal speed, and abradant flow rate, were selected, and divided into five levels for the orthogonal design. Since different factors differ in the value on the same level, the orthogonal design was improved by the quasi-level method. The results of the orthogonal experiment show that the nozzle traversal speed exerted the greatest effect on cutting quality, followed in turn by pump pressure, abradant flow rate, and target distance; the optimal cutting quality could be achieved at the target distance of 7mm, the abradant flow rate of 5g/s, the pump pressure of 340MPa, and the nozzle traversal speed of 200mm/min. The research results provide experimental evidence for high-quality AWJ cutting of the CFRP.

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Section: Introductionmentioning

confidence: 99%