Wear of a high cBN content PCBN cutting tool during hard milling of powder metallurgy cold work tool steels

Saketi, Sara; Sveen, Susanne; Gunnarsson, Staffan; M’Saoubi, Rachid; Olsson, Mikael

doi:10.1016/j.wear.2015.01.073

Cited by 27 publications

(10 citation statements)

References 22 publications

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“…In the material removal processes, the microstructure assemblage of the composite plays a significant role in the tool wear mechanism. It has been shown that lower CBN contents yields superior wear resistance in finish hard milling of tool steels [3,4]. On the other hand, direct correlation of hardness and fracture toughness to grain size and binder content has been studied and discussed by McKie and coworkers [5].…”

Section: Introductionmentioning

confidence: 99%

Surface Topography Quantification of Super Hard Abrasive Tools by Laser Scanning Microscopy

Fang

Llanes

Engstler

et al. 2016

Materials Performance and Characterization

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Non-conventional super hard abrasive tools are made of composite materials containing super hard grains, e.g., diamond or cubic boron nitride (CBN) grains, bound by a metallic constitutive phase. These tools are usually produced by means of sintering, and are widely applied in the abrasive machining processes of modern manufacturing, especially in precision machining. The abrasive grains, which induce the material removal processes, are embedded in the metallic binder. They emerge as a consequence of self-dressing, resulting in a self-sharping effect. Therefore, the cutting surface of the tool displays an irregular topography. Quantification of surface topography scenario may supply valuable information to evaluate and understand its correlation to wear mechanisms. In this study, an experimental protocol consisting of five steps: specimen preparation, surface scanning, image assembly, image digital processing and surface quantification, is proposed and validated by characterizing two CBN honing tools used for precision machining: B151/L2/10/50 (B151) and B91/128/x44/35 (B91) CBN honing stones. It involves the use of laser scanning microscopy and digital imaging processing for assessing significant dimensional, geometrical and positional properties of CBN grains at the surface of super hard abrasive tools. It is shown that surface topography quantification is an effective method to evaluate and obtain the defined parameters. However, smaller grains may require images with higher resolution; and thus, scanning must be refined. Finally, a critical comparative analysis of the experimental results attained for the studied tools points out honing stone B91 as more appropriated than B151 one for achieving a higher machining quality of the workpiece.

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Section: Introductionmentioning

confidence: 99%

Surface Topography Quantification of Super Hard Abrasive Tools by Laser Scanning Microscopy

Fang

Llanes

Engstler

et al. 2016

Materials Performance and Characterization

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“…Where v x (t), v y (t), and v z (t) are the velocity components of the movement speed v v (t) at the feature points of the flank face in the directions of the x, y, and z axes. The friction speed v m (t) was calculated by equation (12).…”

Section: Determination Of Friction Speedmentioning

confidence: 99%

“…Wu et al 11 studied the effect of aspect ratio on the machining process during milling of titanium alloys. Saketi et al 12 studied the wear characteristics of the cutting tool in the milling process of two different quenched cold work tool steels, High-resolution field emission gun scanning electron microscope, energy spectrometer, Auger electron spectrometer and optical surface profiler were used to detect worn blades. The results show that due to friction chemical reaction, adhesive wear, slight abrasive wear, tooth face wear and crater wear were controlled by continuous wear.…”

Section: Introductionmentioning

confidence: 99%

Instantaneous friction energy consumption and its evolution of high energy efficiency milling cutter

Zhao

Zhang

Jiang

et al. 2022

Advances in Mechanical Engineering

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In the process of high-efficiency milling of titanium alloys, cutting vibration causes the frequent changes in the contact relationship between the flank face of the cutter tooth and the workpiece. The instantaneous friction speed, friction force and energy consumption of the milling cutter thus change continuously, resulting in the difficulty to precisely control the wear and life of milling cutter. This has become a bottleneck of restricting the further improvement of the cutting performance of high energy efficiency milling cutter. In this work, the model of instantaneous friction velocity and friction energy consumption of the flank face of the cutter tooth under vibration are developed. The distribution and evolution of instantaneous friction speed and friction energy consumption are studied. The proposed models are verified by high-efficiency milling experiments. The results show that the average relative error of the proposed model is 10.05%, by using this model, the influences of the cutting vibration on instantaneous friction energy consumption and friction wear boundaries could be effectively unveiled. The proposed model also could accurately describe the distribution and evolution of the above-mentioned parameters.

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“…Refs. [5][6][7][8][9][10][11][12][13][14][15]). In general, in these studies, microstructures and properties of studied PcBN tools are rarely invoked as an experimental variable.…”

Section: Introductionmentioning

confidence: 99%

Small-scale mechanical properties of constitutive phases within a polycrystalline cubic boron nitride composite

Besharatloo

Gordon

Rodriguez-Suarez

et al. 2019

Journal of the European Ceramic Society

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Wear of a high cBN content PCBN cutting tool during hard milling of powder metallurgy cold work tool steels

Cited by 27 publications

References 22 publications

Surface Topography Quantification of Super Hard Abrasive Tools by Laser Scanning Microscopy

Surface Topography Quantification of Super Hard Abrasive Tools by Laser Scanning Microscopy

Instantaneous friction energy consumption and its evolution of high energy efficiency milling cutter

Small-scale mechanical properties of constitutive phases within a polycrystalline cubic boron nitride composite

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