Cutting edge geometries

Denkena, Berend; Biermann, Dirk

doi:10.1016/j.cirp.2014.05.009

Cited by 332 publications

(196 citation statements)

References 91 publications

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“…The characterisation of a rounded edge defined by a radius is given in DIN 6582, but there are no specific details about the criteria used to measure this radius. Proposals for a classification were made but none of these are universally used [4].There are currently different methods being used for the measuring of the microgeometry and this often leads to significantly different results.…”

Section: Cutting Edge Microgeometry and Preparationmentioning

confidence: 99%

“…Sγ and Sα are the length from the tangent point of the radius with rake face (Sγ) and flank face (Sα) up to the imaginary intersection of the rake face with the flank face. The length Δr helps defining the profile flattening [4]. The K-factor is the ratio between Sγ and Sα, which shows the orientation of the rounded edge towards the flank face or the rake face [4].…”

Section: Roundmentioning

confidence: 99%

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Influence of the cutting edge microgeometry on the tool life in austenitic stainless steel machining with carbide end mill

et al. 2017

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Abstract. The goal of this paper is to determine the optimal cutting edge microgeometry for a carbide end mill used in stainless steel machining. The optimal cutting edge microgeometry will be determined through conducting more tool life tests. Tools with three different cutting edge radiuses and one without edge preparation will be tested in order to determine the influence of the cutting edge microgeometry on the wear and tool life. The edge microgeometry is obtained through wet blasting preparation.

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Section: Cutting Edge Microgeometry and Preparationmentioning

confidence: 99%

Section: Roundmentioning

confidence: 99%

Influence of the cutting edge microgeometry on the tool life in austenitic stainless steel machining with carbide end mill

et al. 2017

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“…Three zones of chip deformation can be distinguished during a cutting process (Figure 2): primary deformation zone (1), secondary deformation zone (2), and third deformation zone (3). As the name says, the primary deformation zone is the main deformation zone of the cut material, which is characterized by angle Ø [5].…”

Section: Chip Formation and Heat Transfer During Cuttingmentioning

confidence: 99%

“…The author studied the influence of K factors on the quantitative grain size and the accumulated plastic strain. Denkena [3] studied the stagnation zone in front of the cutting edge, having asymmetric micro geometries (K~1.7 and K~0.6), observing how the stagnation zone increases when K~1.7, is higher than the stagnation zone for factor K~0.6. This can also be found in paper [4], where the K factors used in the simulation were 0.5 and 2.…”

Section: Introductionmentioning

confidence: 99%

Finite element simulation of the C70 orthogonal cutting process

et al. 2017

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Abstract. Finite element simulations are intended to predict the effects of the technological parameters on the cutting process. The process simulation may reveal many aspects of the cutting process before testing it in laboratory: thermal transfer, elastic and plastic strains, hardening levels and force levels. Simulation is also used for predicting some process issues that are hard, and even impossibly noticeable. This paper analyzes the influence of the K factor on the cutting of C70 material, from the point of view of chip formation and thermal transfer -elements considered important in the evolution of tool wear on the rake and flank surfaces. The chip formation is also studied and considered as a deciding factor in choosing the right geometry of the tool. The obtained results allow to make observation under the optimal geometry that was tested.

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“…CBN TNGA 160408 S01030 chamfered inserts with electro-erosion (ER) honed cutting edges. Typically, the cutting edge is prepared by sinking it into a counterface [21]. This special preparation technology allows to produce cutting edges with the minimum radius of about 5 μm.…”

Section: Hard Turning Conditionsmentioning

confidence: 99%

Prediction of surface topography in precision hard machining based on modelling of the generation mechanisms resulting from a variable feed rate

Grzesik

2017

Int J Adv Manuf Technol

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The paper presents an original contribution to the prediction of surface topography produced by precision hard turning operations using CBN cutting tools and the variable feed rate of 0.025-0.075 mm/rev. The differences between theoretical and real surface roughness parameters Rz and Sz are quantified in terms of springback effect, additional smoothing of irregularities and side flow effect. The primary experimental study includes measurements of 2D and 3D surface roughness parameters using contact profilometer. Correspondingly, cutting forces were measured using a piezoelectric dynamometer, and based on this data, specific corresponding values of ploughing energy and friction coefficient were determined. It was found that the measured value of maximum height of the surface Sz differs from the theoretical value mainly due to elastic recovery of the machined surface and the smoothing effect at the lower feeds and the elastic recovery and the side flow effect at the higher feeds employed. An empirical model for the prediction of the Sz value in function of the feed rate is derived. The prediction accuracy can be improved by advanced numerical modelling of surface generation mechanisms and associated distortions.

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Cutting edge geometries

Cited by 332 publications

References 91 publications

Influence of the cutting edge microgeometry on the tool life in austenitic stainless steel machining with carbide end mill

Influence of the cutting edge microgeometry on the tool life in austenitic stainless steel machining with carbide end mill

Finite element simulation of the C70 orthogonal cutting process

Prediction of surface topography in precision hard machining based on modelling of the generation mechanisms resulting from a variable feed rate

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