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

Abstract

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.

The research of the agglomeration process during the formation of an abrasive-polymer compound for waterjet cutting in a fluidized bed installation

“…Waterjet cutting is one of the most advanced and popular technologies in the world [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. It has found successful applications not only for cutting any materials in the industry, but also for deep-sea repair, defragmentation, cleaning of sea laying pipeline systems, including in the Arctic.…”

Obtaining the Dependences of the Contact of the Composite Abrasive Material with the Nozzle Walls, which Reduces the Wear of the Focusing Tube of the Waterjet Installation

“…Waterjet cutting is one of the most advanced and popular technologies in the world. It has found successful applications not only for cutting any materials in the industry, but also for deep-sea repair, defragmentation, cleaning of sea laying pipeline systems, including in the Arctic [1,2].…”