Performance evaluation of the grinding wheel with aggregates of grains in grinding of Ti-6Al-4V titanium alloy

Kacalak, Wojciech; Lipiński, D.; Bałasz, Błażej; Rypina, Łukasz; Tandecka, Katarzyna; Szafraniec, Filip

doi:10.1007/s00170-017-0905-x

Cited by 48 publications

(30 citation statements)

References 25 publications

(33 reference statements)

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“…Johnson–Cook equations [ 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ] are commonly used to model materials that are exposed to deformation in a wide range of strain rates and temperatures. The general form of the Johnson–Cook equation is [ 38 , 40 ]:

where A —initial, static yield strength; B —parameter of plastic strength; ε p —effective plastic strain; n —exponent of plastic deformation strength; C —material parameter specifying the impact of the intensity of the plastic speed deformation;

—effective plastic and reference strain rates; T , T amb , T melt —current, ambient and melting temperatures; and m —exponent of thermal plasticity.…”

Section: Methodsmentioning

confidence: 99%

Analysis and Modeling of the Micro-Cutting Process of Ti-6Al-4V Titanium Alloy with Single Abrasive Grain

et al. 2020

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Modeling of material displacements in the microcutting zone is complex due to the number and interdependence of factors affecting the results of the process. An important problem in the modeling process is the selection of the constitutive model and its parameters, which will correctly describe the properties of the material under the conditions of triaxial compression, which is characteristic for the areas of the contact zone of the blade and the processed material in abrasive machining processes. The aim of the work was to develop computer models (with the use of the finite element method) of the microcutting process with a single abrasive grain, which were verified with the results of experimental tests. The paper presents the methodology of modeling the processes of microcutting with abrasive grains, whose geometrical models were created based on optical scanning methods. Observations of the microcutting process were carried out with the use of a high-speed camera and an optical profilometer. This enabled a detailed observation of the chip formation process, as well as the analysis of the surface topography of microcutting traces. The results presented in the paper indicate the convergence of the results of the numerical and experimental simulations with regard to the geometric parameters describing the scratches formed in the microcutting process and the compliance of the chip-forming process. Thus, the correctness of the selection of the constitutive model (Johnson Cook equation) and its parameters was demonstrated, as well as the correctness of the applied methodology for creating a geometric model that allowed for a reflection of the geometrical parameters of the abrasive grains that coincided with the real objects, thanks to which it was possible to reflect in detail the phenomena occurring in the vicinity of the abrasive grain tip.

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—effective plastic and reference strain rates; T , T amb , T melt —current, ambient and melting temperatures; and m —exponent of thermal plasticity.…”

Section: Methodsmentioning

confidence: 99%

Analysis and Modeling of the Micro-Cutting Process of Ti-6Al-4V Titanium Alloy with Single Abrasive Grain

et al. 2020

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“…Specific grinding energy u (J/mm 3 ) is a significant factor of grindability in the machining operation exhibiting the required energy to remove one volume unit of workpiece material, which is described in Eq. ( 8) as a function of tangential force F t , cutting velocity v s , workpiece infeed speed v w , cutting depth a p , and grinding width b [21]:…”

Section: Influence Of Grinding Parameters On Grinding Forcesmentioning

confidence: 99%

Numerical and Experimental Study on the Grinding Performance of Ti-Based Super-Alloy

Phi

Hoang²,

Nguyen

et al. 2021

Int. j. eng. technol. innov.

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The experiments of the surface grinding of Ti-6Al-4V grade 5 alloy (Ti-64) with a resin-bonded cubic Boron Nitride (cBN) grinding wheel are performed in this research to estimate the influence of cutting parameters named workpiece infeed speed, Depth of Cut (DOC), cooling condition on the grinding force, force ratio, and specific energy. A finite element simulation model of single-grain grinding of Ti-64 is also implemented in order to predict the values of grinding forces and temperature. The experimental results show that an increase of workpiece infeed speed creates higher intensified cutting forces than the DOC. The grinding experiments under wet conditions present slightly lower tangential forces, force ratio, and specific energy than those in dry grinding. The simulation outcomes exhibit that the relative deviation of simulated and experimental forces is in the range of 1-15%. The increase in feed rate considerably reduces grinding temperature, while enhancement of DOC elevates the heat generation in the cutting zone.

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“…It is one of the characteristic properties of this process [7]. Because abrasive grain size distribution is essential in effectiveness in most abrasive cutting process [8], [9], especially in AWJ [10], it seems advisable to carry out detailed research in this aspect for achievement the maximal efficiency.…”

Section: Introductionmentioning

confidence: 99%

Research into the Disintegration of Abrasive Materials in the Abrasive Water Jet Machining Process

Perec¹

2021

Preprint

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The size and distribution of abrasive particles have a significant influence on the effectiveness of the cutting process by the high-speed abrasive water jet (AWJ). The paper deal with the abrasive materials disintegration intensity in AWJ cutting during the creation of the abrasive jet. An evaluation of the abrasive materials grabbed after forming in the cutting head was carried out and its grain distribution was evaluated. Used here the arithmetic, geometric and logarithmic method of moments and Folk and Ward method. The influence of abrasive concentration of abrasive materials as alluvial garnet, recycled garnet, corundum, and olivine on grain distribution was studied. A recovery analysis was also carried out and the recycling coefficient for each tested abrasive material was determined.

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Performance evaluation of the grinding wheel with aggregates of grains in grinding of Ti-6Al-4V titanium alloy

Cited by 48 publications

References 25 publications

Analysis and Modeling of the Micro-Cutting Process of Ti-6Al-4V Titanium Alloy with Single Abrasive Grain

Analysis and Modeling of the Micro-Cutting Process of Ti-6Al-4V Titanium Alloy with Single Abrasive Grain

Numerical and Experimental Study on the Grinding Performance of Ti-Based Super-Alloy

Research into the Disintegration of Abrasive Materials in the Abrasive Water Jet Machining Process

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