Electro-erosion edge honing of cutting tools

Yussefian, N.Z.; Koshy, Philip; Buchholz, Steffen; Klocke, Fritz

doi:10.1016/j.cirp.2010.03.009

Cited by 35 publications

(19 citation statements)

References 10 publications

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“…In the electro-erosion edge honing process, the wear ratio that refers to the relative volume of material removed from the tool to that from the counterface, controls the meso-geometry of the edge in terms of it being a hone or a chamfer (Yussefian et al, 2010). An intriguing aspect of this process is that the rounded shape is generated by the radial excursion of the electrical discharges in the machining gap, which obviates the need for any elaborate relative motion between the tool and the counterface.…”

Section: Choice Of Counterface Material Polarity and Pulse Parametersmentioning

confidence: 99%

“…The implementation of electro-erosion honing in its simplest form (Yussefian et al, 2010) entails the symmetric sinking of the cutting edge into a flat and thick counterface (Fig. 2a) under servo control in the presence of a dielectric fluid, so as to induce wear at the edge to generate a rounded shape.…”

Section: Application Of a Foil Counterfacementioning

confidence: 99%

“…This method was shown to enhance tool life by more than 50% as compared to ground tools with sharp edges. Yussefian et al (2010) presented the proof-of-concept of a novel process called electro-erosion edge honing that employs electrical discharge machining (EDM) for the edge preparation of electrically conducting tools. The process was demonstrated to be capable of enhancing the life of high speed steel tools by as much as 4 times as that of ground edges, and of generating edges with less than 10% variability, which is minimal compared to conventional processes.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Application of foil electrodes for electro-erosion edge honing of complex-shaped carbide inserts

Yussefian¹,

Koshy²

2013

Journal of Materials Processing Technology

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Section: Choice Of Counterface Material Polarity and Pulse Parametersmentioning

confidence: 99%

Section: Application Of a Foil Counterfacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of foil electrodes for electro-erosion edge honing of complex-shaped carbide inserts

Yussefian¹,

Koshy²

2013

Journal of Materials Processing Technology

Self Cite

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“…Several researchers state [1][2][3][4][5][6][7][8][9][10][11][12][13] that the central goal of the cutting edge preparation process is to generate a specific geometry in the contour of the cutting edge (rounding or chamfer or combination of both), and to produce an improvement in the cutting edge micro topography (notchedness or chipping) and to adapt the surface of the cutting edge and cutting surfaces for the subsequent coating process of the cutting tool or for the improvement of the contact behavior for an specified machining application. The cutting edge micro geometry is often defined by the cutting edge radius r n .…”

Section: Cutting Edge Preparationmentioning

confidence: 99%

Cutting edge preparation in machining processes

2013

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In modern manufacturing industry it is essential to produce under low costs and high quality of products in a short time. This is possible by selecting the cutting parameters in order to achieve high accuracy and low processing time. Usually the desired cutting parameters are determined based on experience or by use of various handbooks but the cutting tool capability is not fully employed. The tool wear has detrimental effect on surface roughness and costs of production as well as on cutting tool performance and machining process reliability. The meso-and microgeometries of tool design have long been poorly considered by end users and by researchers, because of the lack of manufacturing procedure leading to accurate edge radius preparation. The problem of cutting edge preparation requires considering the appropriate integration of the following aspects: workpiece, machining process, machine tool, surroundings and cutting tool. The application of the edge preparation process seeks to solve this problem by means of the elimination of defects and irregularities and by the generation of defined edge geometry and by modifying the micro-topography of the edge and the micro-structuring of the face and flank of the tool. This article is an outline of literature knowledge concerning the cutting edge design and cutting edge preparation.

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“…Yussefian et al [6] investigated sink electrical discharge machining as an optional method for controlled preparing of cutting edges by sinking the cutting edge into a counterface. Although the manufactured rounding variability is stated as minimal, the capability to prepare straight cutting edges is not limited by the tools' material hardness.…”

Section: Introductionmentioning

confidence: 99%

Cutting Edge Microgeometry and Preparation Methods

Vopát¹,

Kuruc²,

Šimna³

et al. 2017

DAAAM Proceedings

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The paper deals with the issue of cutting edge preparation and tool treatment before the coating and their influence on the tool life of coated cutting tools. The aim was to examine the influence of cutting edge radius sizes on the tool life of cemented carbide turning inserts. Theoretical analysis was focussed on the issue of cutting edge microgeometry, discussing the classification and importance of cutting edge microgeometry. The most famous and used edge preparation methods are summarized in article along with the results of current research of famous tool companies and institutions. In this article, the tool lives of cemented carbide turning inserts which were prepared by several methods were compared. Cemented carbide turning inserts were deposited by AlCrSiN nanocomposite hard coating. Long-term tool live tests were carried out on DMG CTX alpha 500 turning centre. The tool wear of cemented carbide turning inserts was measured on Dino-Lite digital microscope during the turning. The tool lives of prepared cemented carbide turning inserts with required cutting edge radius and unprepared ones were compared. These results were investigated in the process of machining of austenitic stainless steel material X6CrNiTi18-10 by DIN EN (AISI 321), which shows higher strain hardening tendency.

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Electro-erosion edge honing of cutting tools

Cited by 35 publications

References 10 publications

Application of foil electrodes for electro-erosion edge honing of complex-shaped carbide inserts

Application of foil electrodes for electro-erosion edge honing of complex-shaped carbide inserts

Cutting edge preparation in machining processes

Cutting Edge Microgeometry and Preparation Methods

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