Surface grinding of carbon fiber–reinforced plastic composites using rotary ultrasonic machining: Effects of tool variables

Wang, Hui; Ning, Fuda; Hu, Yingbin; Fernando, Pksc; Pei, Zhijian; Cong, Weilong

doi:10.1177/1687814016670284

Cited by 33 publications

(17 citation statements)

References 58 publications

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“…The results obtained indicate that it is advisable to use the rank method instead of the Gaussian method to the competitor, which "for other results" [29] showed less accuracy in searching for common values. (11) 1.000 1.000 1.000 1.000 0.592 0.592 Differences between the media coefficients (8) and (9) also confirm the need for the second stage of the OVA. The results are the same when evaluating the cutting properties of circles relative to formulas (10) and (11).…”

Section: Resultsmentioning

confidence: 80%

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The Selection of Boron Nitride Circles for Grinding Saponite–Titanium Composites Using Non-Parametric Method

Huliieva

Somov

Pasternak

et al. 2020

Latvian Journal of Physics and Technical Sciences

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The issue of grinding saponite–titanium composites has not been considered in the machine building industry yet. The reason is that the chips are stuck on the working surfaces of abrasive tools made of silicon carbide and electrocorundum. This is due to the high adhesive activity at operating cutting temperatures between the composite and traditional abrasives.The article aims at studying the grinding of saponite–titanium composites using abrasive tools in various cutting modes based on parametric and non-parametric statistical methods.To solve this problem, high porous wheels (HPW) made of cubic boron nitride CBN30 with 100 % concentration on a bond V (K27), a pore-forming KF40, varied grains: B76, B126, B151 (ISO 6106:2013) – and hardness: M and O (ISO 525:2013) were used to grind saponite–titanium composites. Additionally, the Norton wheels from green silicon carbide with a normal porosity 39C (46; 60) K8 VK and with different grain size were tested. Norton wheels provide reduction of roughness height by 1.4–1.5 times in comparison with boron nitride HPW. These are recommended for the finishing grinding stage and HPW CBN30 – the preliminary to reduce the thermal effects on composites. By processing stability, the Norton wheels with grain 46 rank first, and among boron nitride HPW – CBN30 B76 100 OV K27–KF40.

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Section: Resultsmentioning

confidence: 80%

“…It has been established that the average medians decrease, although this phenomenon occurs within the framework of the CV. This is evidenced by the median coefficients (8) and (9), which are less than one, in most cases. This, in turn, allows increasing the grinding performance while maintaining the surface quality of the parts.…”

Section: Discussionmentioning

confidence: 96%

The Selection of Boron Nitride Circles for Grinding Saponite–Titanium Composites Using Non-Parametric Method

Huliieva

Somov

Pasternak

et al. 2020

Latvian Journal of Physics and Technical Sciences

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“…drilling, grinding and electric discharge machining), rotary 1 ultrasonic machining (RUM) is an alternative machining method which is of particular interest for the machining of brittle and nonconductive materials as demonstrated in previous studies. 3,4 RUM is a hybrid machining process based on the combined material removal mechanisms of diamond grinding and ultrasonic machining resulting in higher material removal rates. The ultrasonically vibrating diamond-bonded tool is axially fed into the workpiece at a constant feed rate.…”

Section: Introductionmentioning

confidence: 99%

“…10 Another study presented the application of RUM in surface grinding of CFRP composites. 3 The effect of rotary ultrasonic tool parameters including tool geometry, diamond abrasive size, and diamond concentration was studied on cutting force, torque, and surface roughness, and the guidelines were provided for tool selection for RUM of CFRP composites. It can be seen that in the reported studies, the performance of RUM machining process has been evaluated in terms of cutting force, material removal rate, exit chipping size, temperature generation, and tool wear.…”

Section: Introductionmentioning

confidence: 99%

A study on the effect of main process parameters of rotary ultrasonic machining for drilling BK7 glass

Anwar

Nasr

Pervaiz

et al. 2018

Advances in Mechanical Engineering

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BK7 glass is an important engineering material with extensive applications in high-quality and precision transmissive optical components. However, BK7 glass is considered to be a difficult-to-cut material due to its high brittleness and nonconductivity. This article presents the use of rotary ultrasonic machining process for drilling holes in BK7 glass. No previous reports have been found in the literature to experimentally investigate the response of the BK7 glass to rotary ultrasonic drilling. The experimental investigations take into account the effect of the key rotary ultrasonic machining input parameters including the ultrasonic power, spindle speed and feed rate on the output responses of cutting force, exit chipping, surface roughness, hole cylindricity and overcut errors, and surface integrity. The results show that the input parameters within the current ranges can significantly affect the quality of the drilled holes. Moreover, the selected level of any input parameter has the ability to significantly affect the influence of the other input parameters on the output responses. Through proper selection of input parameters, holes could be drilled in BK7 glass with less fractured topography, low surface roughness (1.32 mm), low exit chipping size (0.85), and very low cylindricity (3 mm) and overcut (73.6 mm) errors.

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“…Many recent studies have demonstrated that diamond abrasive tools can generate a low-damage surface with average surface roughness of about Ra 1.5 μm and higher dimensional accuracy [ 27 , 28 ]. Later, rotary ultrasonic machining produced even better surface quality with a surface roughness of about Ra 1.0 μm [ 29 , 30 , 31 ]. Other research about the machining of CFRP composites indicated that high-speed machining with spindle speeds up to 60,000–80,000 rpm could also generate good machining surface and high machining efficiency, mainly due to the remarkable reduction of cutting forces [ 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation on an Innovative Method for High-Speed Low-Damage Micro-Cutting of CFRP Composites with Diamond Dicing Blades

Yuan

Wen

et al. 2018

Materials

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This paper presents an innovative method for high-speed micro-cutting of carbon fiber reinforced plastics (CFRP). It employs a diamond dicing blade for micromachining applications, with a thickness of about 200 μm and rotational speeds up to 30,000 rpm so as to meet the low-damage surface integrity requirements. The process parameters, cutting damage, surface roughness, and the spindle vibration were thoroughly investigated to evaluate and validate the method. The results indicate that a high cutting speed up to 76 m/s not only remarkably increases the rigidity of an ultra-thin dicing blade, but also decreases the cutting depth per diamond grit to below 10 nm, both of which are very conducive to obtaining a very fine machined surface of about Ra 0.025 μm, with no obvious damage, such as delamination, burrs, and fiber pull out. The serious spindle vibration limits the rotational speed to increase further, and the rotational speed of 25,000 rpm achieves the best fine machined surface. Furthermore, unlike most research results of the drilling and milling method, the proposed micro-cutting method obtains the maximum cutting current and surface roughness when cutting at 0° fiber orientation, while obtaining a minimum cutting current and surface roughness when cutting at 90° fiber orientation. The metal-bonded dicing blade achieves smaller surface roughness than the resin-bonded dicing blade. This paper also discusses the cutting mechanism by investigating the morphology of the machined surface and concludes that the micro breakage and plastic-flow in local regions of fibers and resin are the main material removal mechanisms for dicing CFRP composites with a diamond abrasive blade.

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Surface grinding of carbon fiber–reinforced plastic composites using rotary ultrasonic machining: Effects of tool variables

Cited by 33 publications

References 58 publications

The Selection of Boron Nitride Circles for Grinding Saponite–Titanium Composites Using Non-Parametric Method

The Selection of Boron Nitride Circles for Grinding Saponite–Titanium Composites Using Non-Parametric Method

A study on the effect of main process parameters of rotary ultrasonic machining for drilling BK7 glass

Investigation on an Innovative Method for High-Speed Low-Damage Micro-Cutting of CFRP Composites with Diamond Dicing Blades

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