Investigation on standoff distance influence on kerf characteristics in abrasive water jet cutting of composite materials

Popan, Ioan Alexandru; Conţiu, Glad; Campbell, Ian

doi:10.1051/matecconf/201713701009

Cited by 10 publications

(3 citation statements)

References 19 publications

(23 reference statements)

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“…Popan et al [30] studied the influence of the variation of stand-off distances for a thickness of 6 mm. In this study, a reduction in this parameter of up to 0.5 mm reduced the upper cutting width (Wt), thus decreasing the taper.…”

Section: Introductionmentioning

confidence: 99%

Kerf Taper Defect Minimization Based on Abrasive Waterjet Machining of Low Thickness Thermoplastic Carbon Fiber Composites C/TPU

et al. 2019

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Carbon fiber-reinforced thermoplastics (CFRTPs) are materials of great interest in industry. Like thermosets composite materials, they have an excellent weight/mechanical properties ratio and a high degree of automation in their manufacture and recyclability. However, these materials present difficulties in their machining due to their nature. Their anisotropy, together with their low glass transition temperature, can produce important defects in their machining. A process able to machine these materials correctly by producing very small thermal defects is abrasive waterjet machining. However, the dispersion of the waterjet produces a reduction in kinetic energy, which decreases its cutting capacity. This results in an inherent defect called a kerf taper. Also, machining these materials with reduced thicknesses can increase this defect due to the formation of a damage zone at the beginning of cut due to the abrasive particles. This paper studies the influence of cutting parameters on the kerf taper generated during waterjet machining of a thin-walled thermoplastic composite material (carbon/polyurethane, C/TPU). This influence was studied by means of an ANOVA statistical analysis, and a mathematical model was obtained by means of a response surface methodology (RSM). Kerf taper defect was evaluated using a new image processing methodology, where the initial and final damage zone was separated from the kerf taper defect. Finally, a combination of a hydraulic pressure of 3400 bar with a feed rate of 100 mm/min and an abrasive mass flow of 170 g/min produces the minimum kerf taper angle.

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Section: Introductionmentioning

confidence: 99%

Kerf Taper Defect Minimization Based on Abrasive Waterjet Machining of Low Thickness Thermoplastic Carbon Fiber Composites C/TPU

et al. 2019

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“…Most studies indicate that the recommended distance is located in the range of 2 and 3 mm [34,46,55]. Popan et al [47] studied the influence of the variation of the jet-piece distance for a thickness of 6 mm. The authors highlighted that with a considerable reduction of up to 0.5 mm of distance, the upper cutting width (Wt) is considerably reduced, decreasing the conicity ( Figure 10).…”

Section: Cutting Geometry In Polymeric Matrix Compositesmentioning

confidence: 99%

“…Influence of the jet-piece distance on the upper and lower cutting width and the ratio between them adapted from[47].…”

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confidence: 99%

A Review on the Abrasive Water-Jet Machining of Metal–Carbon Fiber Hybrid Materials

Bañon

Sambruno

González-Rovira

et al. 2021

Metals

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The bonding of metallic alloys and composite materials in the form of a hybrid structure is a line of great interest for the current industry. The different machinability of both materials requires a specific machining process. Abrasive water-jet machining (AWJM) is an excellent technology for the simultaneous machining of both materials. However, defects at the micro and macro-geometric level have been detected in several scientific articles. In this review, a detailed study of the two main defects in metals, composite materials and hybrid structures has been developed. The conclusions of several scientific articles have been exposed for a better understanding of the topic in articles between 1984 and 2020. The influence of the cutting parameters on the reduction in kinetic energy of the water jet and the order of stacking of the materials in the hybrid structure is the main objective in order to minimize these defects. Cutting parameter optimization studies, predictive model proposals, process-associated defects and evaluation methodologies have been discussed. The aim of this article is to set a solid background on AWJM machining in hybrid structures and on the influence of cutting parameters on generated defects and machining strategies to obtain the best results at a macro and micro-geometric level.

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Analysis of the Pulsating Water Jet Maximum Erosive Effect on Stainless Steel

Lehocká

Klich

Piteľ

et al. 2019

Lecture Notes in Mechanical Engineering

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Investigation on standoff distance influence on kerf characteristics in abrasive water jet cutting of composite materials

Cited by 10 publications

References 19 publications

Kerf Taper Defect Minimization Based on Abrasive Waterjet Machining of Low Thickness Thermoplastic Carbon Fiber Composites C/TPU

Kerf Taper Defect Minimization Based on Abrasive Waterjet Machining of Low Thickness Thermoplastic Carbon Fiber Composites C/TPU

A Review on the Abrasive Water-Jet Machining of Metal–Carbon Fiber Hybrid Materials

Analysis of the Pulsating Water Jet Maximum Erosive Effect on Stainless Steel

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