Influence Grinding Layer

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Influence of rail grinding process parameters on rail ...

15/11/2016  Influence of rail grinding parameters on the surface layer properties. However, a quantitative correlation between the Barkhausen noise and the micro-hardness of the surface layer could not be observed. This can be an indication for a change of material structure and residual stress in addition to a change of the hardness.

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The influence of grinding parameters of the surface layer ...

disk-type grinding wheel 25A-60-KUBE33 without cooling. Influence of grinding parameters were defined especially for: forces, temperature, roughness of surface and coefficient of grinding with a large range of grinding parameters: Vc=20 m/s, ap=0,005-0,035, Vf=2-6 m/min, without cross-feed on the whole width of sample. After each researches the disk-type grinding

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THE INFLUENCE OF GRINDING CONDITIONS ON THE

THE INFLUENCE OF GRINDING CONDITIONS ON THE DISTRIBUTION OF RESIDUAL STRESS IN THE SURFACE LAYER OF 17CRNI6-6 STEEL AFTER CARBURIZING Jacek Sawicki1, Bogdan Kruszyński2, Ryszard Wójcik 2 1 Institute of Materials Science and Engineering Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego Str., 90-924 Łódź, Poland, e-mail:

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Influence of the Grinding Pass on Microstructure and its ...

On the basis of the surface grind-hardening experiment, the influence of grinding pass on the microstructure and its uniformity of the grind-hardened layer of 65Mn steel were studied using optical microscope, scanning electron microscope, and digital microhardness tester in detail. The results show that the grind-hardened layer generated by two-passes grinding has better uniformity compare with one-pass grinding along the length. Under the conditions of this experiment, grind-hardened layer ...

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Analysis of Influence Factors for White Layer in Grinding ...

White layers formed in grinding process have negative effects on components. White layer will result in brittle surfaces, which will cause product failure. Since grinding parameters may influence white layer formation, it is necessary to study the relationship between white layer thickness and various grinding parameters. In this study, grinding experiments are carried out using harden ...

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Influence of Grinding Parameters on the Depth and ...

On the basis of the cylindrical grinding-hardening test, the influences of the grinding parameters on surface hardened layer were studied. The result shows that when ap≤0.2mm, there is an unhardened area exist in cylindrical grinding hardened workpiece. When ap>0.2mm, there is a tempered area exist in cylindrical grinding hardened workpiece due to the action of grinding heat during cut-in and cut-out of grinding

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Influence of grinding operations on surface integrity and ...

surface layer along the grinding direction were observed as the main types of damage when grinding stainless steels. A large degree of residual stress anisotropy is interpreted as being due to mechanical effects dominating over thermal effects. The effect of grinding on stress corrosion cracking behaviour of 304L austenitic stainless steel in a chloride environment was also investigated (Paper ...

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Influence of the magnetising field frequency and the ...

studied. During the grinding, a superficial defect called grinding burn can happen and produce a three-layer structure. The upper layer contains the hardened layer affected by the grinding burn (which can present softer or harder hardness or more tensile residual stresses than samples without grinding burns), the second layer presents the hardened

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The influence of grinding parameters of the surface layer ...

influence of grinding parameters on: forces, temperature, grinding ratio and surface layer parameters of selected grades of low-alloyed high-speed steels” /LAHSS/. 2. Research method The samples for research with dimensions 6x6x65 mm were made of experimental melts. Table 1

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THE INFLUENCE OF GRINDING CONDITIONS ON THE

THE INFLUENCE OF GRINDING CONDITIONS ON THE DISTRIBUTION OF RESIDUAL STRESS IN THE SURFACE LAYER OF 17CRNI6-6 STEEL AFTER CARBURIZING Jacek Sawicki1, Bogdan Kruszyński2, Ryszard Wójcik 2 1 Institute of Materials Science and Engineering Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego Str., 90-924 Łódź, Poland, e-mail:

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Analysis of Influence Factors for White Layer in

White layers formed in grinding process have negative effects on components. White layer will result in brittle surfaces, which will cause product failure. Since grinding parameters may influence white layer formation, it is necessary to study the relationship between white layer thickness and various grinding parameters. In this study, grinding experiments are carried out using harden ...

More

Influence of the Grinding Pass on Microstructure and its ...

On the basis of the surface grind-hardening experiment, the influence of grinding pass on the microstructure and its uniformity of the grind-hardened layer of 65Mn steel were studied using optical microscope, scanning electron microscope, and digital microhardness tester in detail. The results show that the grind-hardened layer generated by two-passes grinding has better uniformity compare ...

More

Influence of Grinding Parameters on the Depth and ...

On the basis of the cylindrical grinding-hardening test, the influences of the grinding parameters on surface hardened layer were studied. The result shows that when ap≤0.2mm, there is an unhardened area exist in cylindrical grinding hardened workpiece. When ap>0.2mm, there is a tempered area exist in cylindrical grinding hardened workpiece due to the action of grinding heat during cut-in ...

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Influence of the grinding process on the tribological ...

14/10/2019  Boundary layers, which develop during manufacturing and operation, can protect tooth flanks from metal-to-metal contacts. The characteristics of boundary layers and the running behavior of gears are determined by the preconditioning processes (manufacturing and run-in). This paper aims to analyze the influence of the grinding process parameters and the grinding oil on the characteristics

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Influence of grinding operations on surface integrity and ...

surface layer along the grinding direction were observed as the main types of damage when grinding stainless steels. A large degree of residual stress anisotropy is interpreted as being due to mechanical effects dominating over thermal effects. The effect of grinding on stress corrosion cracking behaviour of 304L austenitic stainless steel in a chloride environment was also investigated (Paper ...

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Influence of Grinding Conditions on Residual Stress ...

Induction surface hardening creates very desirable residual stresses in the hardened surface layer. Residual stresses are always of a compressive nature and are usually present to the depth of the induction-hardened layer. By the appropriate selection of grinding wheel and grinding conditions and taking into account the physical and mechanical properties of the workpiece material very ...

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An experimental investigation on surface layer damage

08/11/2019  The influence of grinding parameters on the grinding forces, temperature, ground surface quality (e.g., surface roughness, surface microstructure, subsurface hardness, and subsurface damage) is investigated compared with the corundum grinding wheel. Results showed that the slotted single-layer brazed CBN grinding wheel possesses a better ...

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Influence of white etching layer on rolling contact ...

Influence of white etching layer on rolling contact behavior at wheel-rail interface Qinglin LIAN1,2, Guanyu DENG1, Hongtao ZHU1,*, Huijun LI1, Xi WANG2, Zhiming LIU2 1 School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, NSW 2522, Australia 2 School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044 ...

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Analysis of Influence Factors for White Layer in

White layers formed in grinding process have negative effects on components. White layer will result in brittle surfaces, which will cause product failure. Since grinding parameters may influence white layer formation, it is necessary to study the relationship between white layer thickness and various grinding parameters. In this study, grinding experiments are carried out using harden ...

More

THE INFLUENCE OF GRINDING CONDITIONS ON THE

THE INFLUENCE OF GRINDING CONDITIONS ON THE DISTRIBUTION OF RESIDUAL STRESS IN THE SURFACE LAYER OF 17CRNI6-6 STEEL AFTER CARBURIZING Jacek Sawicki1, Bogdan Kruszyński2, Ryszard Wójcik 2 1 Institute of Materials Science and Engineering Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego Str., 90-924 Łódź, Poland, e-mail:

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Influence of grinding and heating of layer silicates on ...

Influence of grinding and heating of layer silicates on boron sorption Porrenga, D. H. Abstract. Sorption experiments show that with reduced crystallinity, layer silicates fix boron faster and in larger quantities than well-crystallized layer silicates of the same particle

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Influence of grinding operations on surface integrity and ...

surface layer along the grinding direction were observed as the main types of damage when grinding stainless steels. A large degree of residual stress anisotropy is interpreted as being due to mechanical effects dominating over thermal effects. The effect of grinding on stress corrosion cracking behaviour of 304L austenitic stainless steel in a chloride environment was also investigated (Paper ...

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The Influence of Grinding Parameters on the Superficial ...

This work outlines the influence of grinding parameters on the superficial hardening effect of 48MnV microalloyed steel. It was found that the thickness and hardness of the treated surface layer could be up to 1.6mm and HV750 respectively. The beneficial microstructure of the layer was created by an enhanced martensite transformation. It is highly possible that the method can be used to ...

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Influence of Grinding Parameters and Chamfer Size on

Based on the orthogonal experiment, this paper studied the combined effect of grinding parameters and chamfer size on grinding-hardened layers depth formed in grinding-hardening machine. The results show that, while the workpiece was chamfered, the grinding-hardened layers depth would lessen owing to the decreasing of metal removal in per unit time.

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Influence of Grinding Conditions on Residual Stress ...

Induction surface hardening creates very desirable residual stresses in the hardened surface layer. Residual stresses are always of a compressive nature and are usually present to the depth of the induction-hardened layer. By the appropriate selection of grinding wheel and grinding conditions and taking into account the physical and mechanical properties of the workpiece material very ...

More

Semiconductor Back-Grinding - idc-online

Even after careful grinding, there will still be some damage to the wafer. This can be divided into two layers: the top layer, typically 5–7µm thick, is full of micro-cracks, which cause warpage and stress in the wafer; the second layer, 50–70µm thick, contains crystal dislocations, which cause degradation of some electrical properties.

More

Influence of white etching layer on rolling contact ...

Influence of white etching layer on rolling contact behavior at wheel-rail interface Qinglin LIAN1,2, Guanyu DENG1, Hongtao ZHU1,*, Huijun LI1, Xi WANG2, Zhiming LIU2 1 School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, NSW 2522, Australia 2 School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044 ...

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Diamond tools for the semiconductor industry

Minimal influence on crystalline structure. Machines e.g. UEDA GIKEN (1 or 2 spindles), or cylindrical grinding machines. Program Type D W T X H*) Machine e.g. mm mm mm mm mm K6A2 75 4 6 UEDA GIKEN with Winter adapter K1A1 300 30 3 Cylindrical grinding *) as specified Layer specification D181 /K- plus 888 R/ C75 Cup wheel for UDEKA GIKEN machine K6A2 Adapter Machine connection 1A1

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Influence of grinding atmosphere ... preview related ...

Influence of grinding atmosphere on grinding characteristics of CFRP (effect of soluble coolant or liquid nitrogen supply) Ohashi K; Maeno H; Fujihara R; et al. See more; Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C (2013) 79(808) 5068-5078. DOI: 10.1299/kikaic.79.5068. 6 Citations. Citations of this article. 5 Readers. Mendeley users ...

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Influence of grinding operations on surface integrity and ...

surface layer along the grinding direction were observed as the main types of damage when grinding stainless steels. A large degree of residual stress anisotropy is interpreted as being due to mechanical effects dominating over thermal effects. The effect of grinding on stress corrosion cracking behaviour of 304L austenitic stainless steel in a chloride environment was also investigated (Paper ...

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Influence of the Manufacturing Process on the Local ...

13/04/2020  This paper deals with identifying the influence of the sintering process on the local properties of the grinding layer. This is achieved by investigating the densification as well as the bond microstructure depending on the sintering parameters and on the specification of the initial mixture. As a use case, the bronze bond is considered. The results show that the input parameters have a ...

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Influence of grinding atmosphere on grinding ...

Influence of grinding atmosphere on grinding characteristics of CFRP (effect of soluble coolant or liquid nitrogen supply) Kazuhito Ohashi, ... keywords = "Affected layer, Bending strength, CFRP, Grinding, Grinding atmosphere, Grinding temperature, Liquid nitrogen, Surface finish", author = "Kazuhito Ohashi and Hayato Maeno and Ryohei Fujihara and Shinichirou Kubota and Mitsuo

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Influence of the Grinding Pass on Microstructure and its ...

On the basis of the surface grind-hardening experiment, the influence of grinding pass on the microstructure and its uniformity of the grind-hardened layer of 65Mn steel were studied using optical microscope, scanning electron microscope, and digital microhardness tester in detail. The results show that the grind-hardened layer generated by two-passes grinding has better uniformity compare ...

More

Influence of white etching layer on rolling contact ...

Influence of white etching layer on rolling contact behavior at wheel-rail interface Qinglin LIAN1,2, Guanyu DENG1, Hongtao ZHU1,*, Huijun LI1, Xi WANG2, Zhiming LIU2 1 School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, NSW 2522, Australia 2 School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044 ...

More

Semiconductor Back-Grinding - idc-online

Even after careful grinding, there will still be some damage to the wafer. This can be divided into two layers: the top layer, typically 5–7µm thick, is full of micro-cracks, which cause warpage and stress in the wafer; the second layer, 50–70µm thick, contains crystal dislocations, which cause degradation of some electrical properties.

More

Advances in Engineering Research, volume 134 2nd ...

hardening test, influences of the grinding speed, the grinding depth and the feed speed on residual stress in grinding-hardened layer of 42CrMo steel were systematically studied. Basic regularities of above-mentioned grinding parameters on residual stress and its relationship with micro-hardness distribution of the hardened layer are generally revealed. The results show that compress residual ...

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Nitriding’s “White Layer” and Isotropic Superfinishing ...

17/02/2017  The disadvantages of the process, the production of a compound white layer as well as a slightly uncontrolled case depth, are outweighed by the improved mechanical qualities delivered by the case-hardened nitride layer. As industries continue to rely on nitriding, a reliable solution to remove the process’s disadvantages beyond grinding and machining must be identified. Isotropic ...

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3D Printing Layer Height: How Much Does It Matter?

12/01/2020  3D printing layer height is a simple setting. This little factor has a lot to do not only with print speed, but also detail. Keep reading to find out more! Printables Basics Buyer's Guides Reviews. More . Printables; Basics; Buyer's Guides; Reviews; Pro . Get It 3D Printed. This article is free for you and free from outside influence. To keep things this way, we finance it through advertising ...

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