Analysis of Methods and Measuring Instruments Used for Super Alloy Products (Obtained by SLM-Method) Surface Layer Quality Evaluation

2022 ◽  
pp. 174-186
Author(s):  
T. A. Levina ◽  
E. V. Safonov ◽  
To Man Hung
Keyword(s):  
Surface Layer ◽  
Quality Evaluation ◽  
Measuring Instruments ◽  
Surface Layer Quality ◽  
Super Alloy

scholarly journals Rated definition of degree of cutter coating influence upon parameters of surface layer quality of parts worked

2017 ◽  
Vol 2 (7) ◽  
pp. 20-24
Author(s):  
Вячеслав Безъязычный ◽  
Vyacheslav Bezyazychnyy ◽  
Максим Басков ◽  
Maksim Baskov
Keyword(s):  
Surface Roughness ◽  
Surface Layer ◽  
Residual Stresses ◽  
Layer Surface ◽  
Wear Resistant Coatings ◽  
Cutter Wear ◽  
Definition Of ◽  
Surface Layer Quality ◽  
The Impact

The impact of cutter wear-resistant coatings upon cutting process parameters and characteristics of surface layer quality in the parts worked: residual stresses, a degree and a depth of work hardening of a surface layer, surface roughness is investigated.

scholarly journals Problems of Analyzing Microstructure Images in Assessing the Impact of Technological Parameters of Combined Strain Wave Hardening on the Quality of the Surface Layer

2019 ◽  
Author(s):  
Андрей Киричек ◽  
Andrey Kirichek ◽  
Дмитрий Соловьев ◽  
Dmitriy Solovyev ◽  
Александр Хандожко ◽  
...  
Keyword(s):  
Surface Layer ◽  
Thermal Treatment ◽  
Strain Wave ◽  
Technological Parameters ◽  
Steel Microstructure ◽  
Main Indicator ◽  
Metallographic Images ◽  
Surface Layer Quality ◽  
The Impact

The problems of analyzing metallographic images and the method of their solution using modern software for the analysis of metallographic images are described. There is given an analysis of microstructure images as the main indicator of the surface layer quality by the example of studying the research results of strain wave hardening combinations and chemical-thermal treatment, in particular the influence of previous strain wave hardening and subsequent thermal and chemical- thermal treatment on the alloy steel microstructure or previous thermal and chemical- thermal treatment and subsequent strain wave hardening. On the basis of the analysis the effectiveness of strain wave hardening and chemical and thermal treatment is established.

Acoustic and Emission Control of the Hereditable Stress and Strain State of the Metal Surface Layer during Cutting and Surface Plastic Deformation

2015 ◽  
Vol 788 ◽  
pp. 3-10
Author(s):  
Valeriy Yu. Blumenstein ◽  
Fyodor I. Panteleenko ◽  
Igor V. Miroshin ◽  
Oleg A. Ostanin
Keyword(s):  
Plastic Deformation ◽  
Acoustic Emission ◽  
Surface Layer ◽  
Shear Deformation ◽  
Surface Plastic Deformation ◽  
Surface Plastic ◽  
Deformation Degree ◽  
Emission Signal ◽  
Experimental Findings ◽  
Surface Layer Quality

Methods and experimental findings shown describe how mechanical parameters of the surface layer behavior and acoustic emission signals are interconnected.Experimental study was carried out under conditions of simple single-and dual stage compression. Graphic and analytic dependencies between the counting rate of the acoustic emission Ṅ and the shear deformation degree Λ were revealed. The findings describing dual compression show that the acoustic emission method is sensitive to the material stressing history.The dependency of the acoustic emission signal energy on the pre-stressing program was found, which helped establish that, with values of the plasticity reserve depletion being equal for all experimental specimens, the accumulated shear deformation degree Λ was different.The findings describing the hereditable physical state of the strengthened surface layer of parts during cutting and surface plastic deformation are presented in the paper. The study was carried out using the methods of property accumulation control in deformation sites depending on treatment modes with real-time monitoring of acoustic emission signals. A peculiar feature of these methods is the use of visual recording of the metal plastic flow to be further used in calculating the hereditable parameters of the surface layer quality.

The Analysis of Finishing Tooling Influence on Contact Fatigue Researched by Profilometer

2013 ◽  
Vol 199 ◽  
pp. 117-122
Author(s):  
Wojciech Labuda ◽  
Adam Charchalis
Keyword(s):  
Surface Roughness ◽  
Surface Layer ◽  
Contact Fatigue ◽  
Roughness Coefficient ◽  
304L Stainless Steel ◽  
Technological Parameters ◽  
Research Results ◽  
Burnishing Process ◽  
Relative Hardness ◽  
Surface Layer Quality

The article presents the research results referring to the analysis of the influence of finish treatment ( lathing, grinding, burnishing) on the contact fatigue of steel applied to marine pump shafts. The research was performed on a roller 40 mm in diameter made of 304L stainless steel. Within the research, the optimalization of burnishing technological parameters was conducted on account of the minimalization of Ra surface roughness coefficient as well as the maximalization of SU degree of surface layer relative hardness [. The multi criteria optimalization conducted by min-max method [ with regard to minimum surface roughness as well as maximum degree of surface layer hardness demonstrated that burnishing process should be carried out at the following technological parameters: burnishing force 1.1 kN, burnishing speed 35 m/min, feed 0.13 mm/rev. In addition, the influence of the burnisher passes number on the surface layer quality was determined [.The paper will present the research results of contact fatigue examination of samples after finish machining.

Surface-layer quality after high-speed turning of hard material

2014 ◽  
Vol 34 (6) ◽  
pp. 423-424
Author(s):  
I. E. Kiryushin ◽  
D. E. Kiryushin ◽  
S. B. Venig ◽  
T. G. Nasad ◽  
M. O. Stepanova ◽  
...  
Keyword(s):  
Surface Layer ◽  
High Speed ◽  
Hard Material ◽  
High Speed Turning ◽  
Surface Layer Quality

A review of quality evaluation of digital libraries based on users’ perceptions

2012 ◽  
Vol 38 (3) ◽  
pp. 269-283 ◽  
Author(s):  
Rubén Heradio ◽  
David Fernández-Amorós ◽  
Francisco Javier Cabrerizo ◽  
Enrique Herrera-Viedma
Keyword(s):  
Information System ◽  
Literature Review ◽  
Digital Libraries ◽  
Quality Evaluation ◽  
Measuring Instruments ◽  
The Past ◽  
User Communities ◽  
The Future ◽  
Shed Light

In the past two decades, the use of digital libraries (DLs) has grown significantly. Accordingly, questions about the utility, usability and cost of DLs have started to arise, and greater attention is being paid to the quality evaluation of this type of information system. Since DLs are destined to serve user communities, one of the main aspects to be considered in DL evaluation is the user’s opinion. The literature on this topic has produced a set of varied criteria to judge DLs from the user’s perspective, measuring instruments to elicit users’ opinions, and approaches to analyse the elicited data to conclude an evaluation. This paper provides a literature review of the quality evaluation of DLs based on users’ perceptions. Its main contribution is to bring together previously disparate streams of work to help shed light on this thriving area. In addition, the various studies are discussed, and some challenges to be faced in the future are proposed.

Influence of the microstructure of Al–Si alloy on the surface-layer quality in microarc oxidation

2017 ◽  
Vol 37 (4) ◽  
pp. 314-317
Author(s):  
S. K. Kiseleva ◽  
L. I. Zainullina ◽  
M. M. Abramova ◽  
A. A. Khazgalieva ◽  
N. Yu. Dudareva ◽  
...  
Keyword(s):  
Surface Layer ◽  
Microarc Oxidation ◽  
Surface Layer Quality

An accelerated method of inspecting the surface-layer quality of parts during machining

1981 ◽  
Vol 17 (1) ◽  
pp. 91-93
Author(s):  
P. A. Rutman ◽  
N. V. Pertsov ◽  
V. S. Lobantsova
Keyword(s):  
Surface Layer ◽  
Surface Layer Quality
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