An electron microprobe and cathodoluminescence study of chemical reactions between tool and workpiece when turning steel with alumina-based ceramics

Brandt, G.; Mikus, Magdalena

doi:10.1016/0043-1648(87)90215-8

Cited by 34 publications

(12 citation statements)

References 11 publications

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“…Xiao [4] has observed that zirconia toughened alumina ceramic cutting tools and TiC mixed alumina ceramic tools are more suitable for machining hardened steel than other ceramic tools because of their superior flank wear resistance. Brandt and Mikus [5] have observed that the crater wear in alumina-based ceramic tools also affects the performance of the ceramic tools and crater wear in these tools is predominantly dependent on superficial plastic deformation when machining steel. Richards and Aspinwall [6] have observed that the tool life of mixed alumina ceramic tool is severely limited due to excessive notching, when machining nickel-based alloys.…”

Section: Introductionmentioning

confidence: 99%

The effect of tool wear on tool life of alumina-based ceramic cutting tools while machining hardened martensitic stainless steel

Kumar¹,

Durai

Sornakumar

2006

Journal of Materials Processing Technology

108

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Section: Introductionmentioning

confidence: 99%

The effect of tool wear on tool life of alumina-based ceramic cutting tools while machining hardened martensitic stainless steel

Kumar¹,

Durai

Sornakumar

2006

Journal of Materials Processing Technology

108

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“…According to Equation (1), normal stress on rake face can be obtained from maximum normal stress q^m ax , surface position x and chip-tool contact length //, with maximum normal stress given by average friction coefficient, average shear strength and ratio between sticking zone and chip-tool contact length [9]. The expression provided by C. Arcona and T.A.…”

Section: Normal Stress At Tool Surfacementioning

confidence: 99%

“…For tool wear simulation, normal stress variation along chip-tool interface can be described by Zorev's model [9], and a uniform distribution can be considered on flank face. According to Equation (1), normal stress on rake face can be obtained from maximum normal stress q^m ax , surface position x and chip-tool contact length //, with maximum normal stress given by average friction coefficient, average shear strength and ratio between sticking zone and chip-tool contact length [9].…”

Section: Normal Stress At Tool Surfacementioning

confidence: 99%

“…Lo Casto et al [13] analysed the influence of thermal stress on cracks formation for ceramic tools, and Evan and Marshall [12] provided a fracture toughness threshold for wear rate. Dearnley [9], Ruppi et al [10] and Brandt and Mikus [11] studied wear resistance of coated WC-Co inserts, while Kwon [15] developed models for abrasion wear on flank face for TiN, TiCN and A1 2 0 3 coated inserts. In this work, a numerical model for tool wear analysis including not only flank face but also rake face is proposed.…”

Section: Introductionmentioning

confidence: 99%

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Numerical modelling of tool wear in turning with cemented carbide cutting tools

Franco¹,

Amestoy²,

Faura³

2007

AIP Conference Proceedings

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A numerical model is proposed for analysing the flank and crater wear resulting from the loss of material on cutting tool surface in turning processes due to wear mechanisms of adhesion, abrasion and fracture. By means of this model, the material loss along cutting tool surface can be analysed, and the worn surface shape during the workpiece machining can be determined. The proposed model analyses the gradual degradation of cutting tool during turning operation, and tool wear can be estimated as a function of cutting time. Wear-land width (VB) and crater depth (KT) can be obtained for description of material loss on cutting tool surface, and the effects of the distinct wear mechanisms on surface shape can be studied. The parameters required for the tool wear model are obtained from bibliography and experimental observation for AISI 4340 steel turning with WC-Co cutting tools.

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“…Alumina cutting tools when machining steels are known to react with formation of iron based spinels of Fe 2 O 3 -Al 2 O 3 [16] and FeO-Al 2 O 3 [17]. Extensive use of magnesia as deoxidizer in steels and Alloy 718 [2] can lead to formation of MgO-Al 2 O 3 or more complex spinel of Fe-Mg-Al-O system [18]. Most of the reaction products become either plastic or liquefy under the cutting temperature thus forming tribolayer on the tool surfaces.…”

Section: Introductionmentioning

confidence: 99%

Wear mechanisms of silicon carbide-whisker-reinforced alumina (Al2O3–SiCw) cutting tools when high-speed machining aged Alloy 718

Bushlya

Zhou

Avdovic

et al. 2013

Int J Adv Manuf Technol

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Link to publicationCitation for published version (APA): Bushlya, V., Zhou, J., Avdovic, P., & Ståhl, J-E. (2013). Wear mechanisms of silicon carbide-whisker-reinforced alumina (Al2O3-SiCw) cutting tools when high-speed machining aged Alloy 718. International Journal of Advanced Manufacturing Technology, 68(5-8), 1083 -1093 . DOI: 10.1007 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Bushlya, V., Zhou, J., Avdovic, P., Ståhl, J. AbstractThe paper is aimed on identification and characterization of wear mechanisms of SiC whisker reinforced alumina when turning aged Alloy 718 under different cutting conditions and when machining dry and with coolant. Secondary and back-scatter electron microscopy accompanied by focus ion beam milling and EDX techniques were used for analysis of worn-out tools. Notch wear on the major cutting edge was found to consist of two notches: depth-of-cut notch and secondary notch located outside the chip area. The last was found to be governed by adhesion and attrition associated with adverse chip flow conditions. Formation of minor notch was related to attrition by the defects found on the machined surface. Diffusion of Ni, Fe and Cr into SiC whiskers was found to degrade them and facilitate adhesion. Chemical wear mechanisms were found to be responsible for degradation and decomposition of whiskers and formation of tribolayer on tool surfaces, which in turn was related to the reduced adhesion of Alloy 718 on the tool. Cracking on the tool rake and localized plastic deformation were found to further accelerate tool deterioration.

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An electron microprobe and cathodoluminescence study of chemical reactions between tool and workpiece when turning steel with alumina-based ceramics

Cited by 34 publications

References 11 publications

The effect of tool wear on tool life of alumina-based ceramic cutting tools while machining hardened martensitic stainless steel

The effect of tool wear on tool life of alumina-based ceramic cutting tools while machining hardened martensitic stainless steel

Numerical modelling of tool wear in turning with cemented carbide cutting tools

Wear mechanisms of silicon carbide-whisker-reinforced alumina (Al2O3–SiCw) cutting tools when high-speed machining aged Alloy 718

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