Finite element analysis and wear mechanism of B4C–TiB2 ceramic tools in turning AISI 4340 workpieces

Liu, Chunyue; Zhang, Zhixiao; Yang, Guangyuan; Zhou, Ao; Wang, Guimei; Qin, Shenjun; Wang, Aiyang; Wang, Weimin; Zhang, Xiaorong

doi:10.1016/j.ceramint.2021.11.090

Cited by 12 publications

(10 citation statements)

References 27 publications

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“…The relation involving flank wear and the ratio of force components were derived for this purpose using data from several tests. FE models have also been used to investigate the wear mechanism in the machining of hard-to-cut materials in addition to analytical or mathematical models [44][45][46][47][48].…”

Section: Literature Surveymentioning

confidence: 99%

Tool Wear Prediction When Machining with Self-Propelled Rotary Tools

et al. 2022

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The performance of a self-propelled rotary carbide tool when cutting hardened steel is evaluated in this study. Although various models for evaluating tool wear in traditional (fixed) tools have been introduced and deployed, there have been no efforts in the existing literature to predict the progression of tool wear while employing self-propelled rotary tools. The work-tool geometric relationship and the empirical function are used to build a flank wear model for self-propelled rotary cutting tools. Cutting experiments are conducted on AISI 4340 steel, which has a hardness of 54–56 HRC, at various cutting speeds and feeds. The rate of tool wear is measured at various intervals of time. The constant in the proposed model is obtained using genetic programming. When experimental and predicted flank wear are examined, the established model is found to be competent in estimating the rate of rotary tool flank wear progression.

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Section: Literature Surveymentioning

confidence: 99%

Tool Wear Prediction When Machining with Self-Propelled Rotary Tools

et al. 2022

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“…The addition of a second phase is an effective method to improve the strength and toughness of B 4 C ceramics. Among second phases, titanium boride (TiB 2 ), with its ultrahigh hardness and a high melting point, has attracted much research attention globally 7–9 . The hardness of TiB 2 , at 25–32 GPa, is higher than that of the transition metal diborides of ZrB 2 and HfB 2 and would help to maintain the high hardness of B 4 C ceramics 10–12 .…”

Section: Introductionmentioning

confidence: 99%

“…Among second phases, titanium boride (TiB 2 ), with its ultrahigh hardness and a high melting point, has attracted much research attention globally. [7][8][9] The hardness of TiB 2 , at 25-32 GPa, is higher than that of the transition metal diborides of ZrB 2 and HfB 2 and would help to maintain the high hardness of B 4 C ceramics. [10][11][12] At the same time, the thermal expansion coefficient difference between TiB 2 (8.1 × 10 −6 /K) and B 4 C (4.4 × 10 −6 /K) could give rise to thermal stress to obtain higher fracture toughness for B 4 C ceramics.…”

Section: Introductionmentioning

confidence: 99%

The improvement mechanism of mechanical properties of B₄C ceramics by constructing core–shell powders

et al. 2023

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B4C ceramics have been widely used in armor plate and cutting tools due to their high hardness. However, their poor sintering performance and low fracture toughness have limited their extended applications. In order to solve these problems, B4C@TiB2 composite powders with core–shell structure were prepared by a sol–gel method using B4C and TiCl4 as raw materials and then sintered by spark plasma sintering. The composite powders were characterized by X‐ray diffraction, X‐ray photoelectron spectroscopy, and scanning electron microscopy. The mechanical properties of B4C ceramics were tested by indentation and three‐point bending methods. The results showed that the B4C@TiB2 composite powders exhibited a tight core–shell structure, and the chemical bonds on the surface were mainly B–C and B–Ti bonds. When the molar ratio of B4C:TiCl4 was 2:1, the relative density and bulk density of B4C ceramics reached 96.2% and 2.92 g/cm3, respectively. Because of the good sintering performance of the B4C@TiB2 composite powders, the Vickers hardness and fracture toughness reached 26.6 GPa and 5.22 MPa m1/2, respectively. The bending strength reached a maximum of 570 MPa. The excellent fracture toughness can be attributed to crack deflection, crack branching, and the residual thermal stress of the core–shell structure.

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“…The addition of second phase can effectively improve the strength and toughness of the B4C ceramics. Among them, titanium boride (TiB2) with ultrahigh hardness and high melting point has attracted much attention of many researchers [4,5]. The hardness of TiB2 can reach 25~32 GPa, which is higher than that of other transition metal diborides such as ZrB2(22.1 GPa) and HfB2 [6].…”

Section: Introductionmentioning

confidence: 99%

Enhancement Mechanical Properties of B4C Ceramics with the Core-Shell Structure Powders

Yao

Yan

et al. 2022

Advances in Transdisciplinary Engineering

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In order to improve the mechanical properties of B4C ceramics, B4C@TiB2 composite powders with core-shell structure are prepared by molten salt method using B4C and Ti powders as raw materials. And B4C ceramics were prepared from B4C@TiB2 composite powders by spark plasma sintering (SPS). The results show that the B4C@TiB2 composite powders exhibit intact core-shell structure. The B4C@TiB2 composite powders improves the mass transfer during spark plasma sintering. When the molar ratio of B4C/Ti is 2/1, the relative density, Vickers hardness, fracture toughness and flexural strength of the BT1/2 sample are 94.2%, 26.9 GPa, 5.34 MPa·m1/2 and 570 MPa, respectively, which is best comprehensive properties.

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Finite element analysis and wear mechanism of B4C–TiB2 ceramic tools in turning AISI 4340 workpieces

Cited by 12 publications

References 27 publications

Tool Wear Prediction When Machining with Self-Propelled Rotary Tools

Tool Wear Prediction When Machining with Self-Propelled Rotary Tools

The improvement mechanism of mechanical properties of B₄C ceramics by constructing core–shell powders

Enhancement Mechanical Properties of B4C Ceramics with the Core-Shell Structure Powders

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Finite element analysis and wear mechanism of B4C–TiB2 ceramic tools in turning AISI 4340 workpieces

Cited by 12 publications

References 27 publications

Tool Wear Prediction When Machining with Self-Propelled Rotary Tools

Tool Wear Prediction When Machining with Self-Propelled Rotary Tools

The improvement mechanism of mechanical properties of B4C ceramics by constructing core–shell powders

Enhancement Mechanical Properties of B4C Ceramics with the Core-Shell Structure Powders

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Product

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The improvement mechanism of mechanical properties of B₄C ceramics by constructing core–shell powders