Experimental study on white layers in high-speed grinding of AISI52100 hardened steel

Huang, Xiaoxue; Ren, Yinghui; Zhou, Zhixiong; Xiao, Hang

doi:10.1007/s12206-015-0240-9

Cited by 20 publications

(5 citation statements)

References 15 publications

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“…However, the researches have shown that the microstructure of machined surfaces produced by dry-hard turning is different from that of substrate and the white layers can be observed under optical microscope ( Guo and Waikar, 2010;Huang et al, 2015). White layer is at top surface of machined surface, so the microstructure and formation law of white layer have great effect on performance and service life of workpiece.…”

Section: Introductionmentioning

confidence: 99%

White layer formation mechanism in dry turning hardened steel

Duan

Zhang

Sun

et al. 2018

JAMDSM

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The studying white layer produced in dry-hard turning process has important theoretical significance and practical value. The experiments of orthogonal turning AISI 52100 and AISI 4340 steels were employed by using PCBN inserts, a series of experimental methods were employed to study the microstructure, phase component, element segregation and hardness of machined surface. Based on experimental results, the white layer formation mechanism and the effects of cutting parameters and material properties on the white layer thickness were studied. The results show that there is ultra-fine microstructure in the white layer, the carbon segregation occurs in the machined surface and the retained austenite content is larger than that in the substrate, which indicates that the white layer is the product of phase transformation. The grains in the white layer are refined and the hardness of white layer is larger than that of the substrate, which illustrates that the plastic deformation promotes the formation of white layer. In conclusion, white layer is formed under the interaction of phase transformation and plastic deformation. The thickness and retained austenite content of white layer increase at first then decrease with cutting speed. The white layer thickness increases with feed rate, carbon content and hardness of material.

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Section: Introductionmentioning

confidence: 99%

White layer formation mechanism in dry turning hardened steel

Duan

Zhang

Sun

et al. 2018

JAMDSM

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“…This article builds the micro-grinding force model of nickelbased single-crystal superalloy, with the model of normal grinding force and tangential grinding force shown in formulae (21) and (22) [25] in grinding along 〈001〉 crystal orientation in (001) crystal plane. The process of model establishment mainly considers the influence of size effect of micro-grinding and grinding parameters rather than the anisotropy of single-crystal material.…”

Section: Influence Of Anisotropy On Grinding Forcementioning

confidence: 99%

“…Chen et al [20] adopted multilayer CBN grinding wheel to grind the superalloy Inconel 718 and measured the temperature in grinding area, thus eventually proposing the method of controlling grinding burn. Huang et al [21] used the CBN grinding wheel to grind the hard steel AISI52100 at high speed, conducted online measurement on the grinding force and temperature, and analyzed the effect of grinding velocity on grinding temperature. A higher grinding temperature resulted in the phase change of the grinding surface.…”

Section: Introductionmentioning

confidence: 99%

Study on force and temperature characteristics of micro-grinding nickel-based single-crystal superalloy

Zhou

Gong

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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Aiming at the status of fewer researches on the anisotropy of single-crystal superalloy and micro-grinding temperature field, micro-grinding using the tool of < 1 mm in diameter to remove material is the final procedure of machining micro-parts. This paper firstly analyzes the anisotropy of surface-centered cubic structural material and establishes the theoretical model of elastic modulus and shearing modulus of single-crystal superalloy in the (001), (110) and (111) crystal plane. Afterward, it builds the three-dimensional simulation model of grinding temperature based on the Hill model, adopts any Lagrangian-Euler method to realize the simulation of micro-grinding temperature, gets the distribution of temperature field and changing situation during the micro-grinding through single-factor experiment and simulation analysis, and makes a study on the laws of different grinding depths, feeding rates, grinding velocities, different crystal planes {(001), (110) and (111)} and different crystal orientations in (001) crystal plane that affect the micro-grinding temperature, thus obtaining the crystal orientation which produces low grinding force and temperature. The result indicates that the grinding temperature increases with the increase in spindle speed, feeding rate and grinding depth; the grinding force and temperature are proportional to the elastic modulus and shearing modulus of the single-crystal material; the grinding temperature along (111) crystal plane is the highest, that of the (110) crystal plane is at the middle, and that along (001) is the lowest. When grinding in the (001) crystal plane, the normal grinding force and temperature along [110], [110] , [110] , [110] crystal orientations are the highest, and those along [100], [010], [100] , [010] crystal orientations are the lowest. And along with the aggravating of wear of abrasives on the grinding tool, the normal grinding force, tangential grinding force and grinding temperature all increase and the wear state of grinding tool can be judged online according to the signal of grinding force and temperature. These results provide an important evidence to do further research on the surface integrity of grinding single-crystal superalloy.

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“…For this purpose, various cutting methods are used, which provide high parameters of accuracy and quality of treated surfaces [13], the formation of a regular profile on the contacting surfaces [14], grinding with various types of abrasive wheels [15], surface plastic deformation [16], the application of various coatings [17][18][19], surfacing with alloy metal [20,21], electrophysical and electrochemical processing methods [22], etc. [23].…”

Section: Introductionmentioning

confidence: 99%

Resistance to Wear during Friction without Lubrication of Steel-Cast Iron Pairing with Nanocrystalline Structure-Reinforced Surface Layers

Hurey,

Maruschak,

Augousti

et al. 2023

Lubricants

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During the TDT of 41Cr4 steel specimens, a uniformly reinforced white layer with a nano-crystalline structure is formed in the surface layers. The wear resistance of sliding friction without the lubrication of a pair of steel 41Cr4—grey cast iron EN-GJL-200 (EN) under the face-to-face (“ring-ring”) scheme has been studied. It is revealed that when the sliding velocity changes from 0.25 m/s to 4 m/s and the unit load changes from 0.2 MPa to 1.0 MPa, a pair with a reinforced surface layer on 41Cr4 steel specimens and unreinforced specimens of EN-GJL-200 (EN) grey cast iron has a higher wear resistance than an unreinforced pair. The wear resistance increases for both reinforced and not reinforced specimens operating in a friction pair.

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Experimental study on white layers in high-speed grinding of AISI52100 hardened steel

Cited by 20 publications

References 15 publications

White layer formation mechanism in dry turning hardened steel

White layer formation mechanism in dry turning hardened steel

Study on force and temperature characteristics of micro-grinding nickel-based single-crystal superalloy

Resistance to Wear during Friction without Lubrication of Steel-Cast Iron Pairing with Nanocrystalline Structure-Reinforced Surface Layers

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