scholarly journals Comparision of the bearing rings deformation after heat treatment

2020 ◽  
Vol 20 (5) ◽  
pp. 677-683
Author(s):  
Dana Stancekova ◽  
Anna Rudawska ◽  
Jozef Mrázik ◽  
Filip Turian
Keyword(s):  
Heat Treatment ◽  
Bearing Rings

Analysis of Cutting Parameters Influence on the Machined Surface Roughness Obtained by Turning of a Heat Treated Bearing Steel

2015 ◽  
Vol 809-810 ◽  
pp. 195-200
Author(s):  
Constatin Rotariu ◽  
Sevasti Mitsi ◽  
Dragos Paraschiv ◽  
Octavian Lupescu ◽  
Sergiu Lungu ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Surface Roughness ◽  
Hard Turning ◽  
Cutting Parameters ◽  
Bearing Steel ◽  
Machined Surface ◽  
Heat Treated ◽  
Machined Surface Roughness ◽  
Bearing Rings ◽  
Quality Surface

In this paper we analyze the influence of cutting parameters on the surface quality, surface roughness respectively, processed by turning when heat treated bearing steel, also called hard turning, and processing by turning of bearing steel without heat treatment. We set parameters of the cutting regime influencing the achievement of roughness surfaces which must be within the predetermined requirements if bearing rings exceeding 500 mm in diameter. This analysis will be done by statistical methods using the software Minitab 14.

Experimental Investigation of Residual Stresses after Heat Treatment and Grinding Processes in the Production of Ball Bearing Rings

2008 ◽  
Vol 571-572 ◽  
pp. 27-32 ◽  
Author(s):  
Volkan Güley ◽  
A. Erman Tekkaya ◽  
Turhan Savaş ◽  
Feridun Özhan
Keyword(s):  
Heat Treatment ◽  
Experimental Investigation ◽  
Residual Stresses ◽  
Process Parameters ◽  
Treatment Process ◽  
Ball Bearing ◽  
Grinding Process ◽  
Heat Treatment Process ◽  
Grinding Processes ◽  
Bearing Rings

Experimental investigation of residual stresses after heat treatment and grinding processes in the production of ball bearing rings has been carried out. The residual stresses were measured by X-ray diffraction method utilizing chromium radiation, which has an average penetration depth of 5 μm incident on 100Cr6 (AISI-E52100) ball bearing steel. The process parameters of heat treatment and grinding processes were varied so as to represent the extreme values that can be applied in the respective processes. Hardness and percent retained austenite limit the heat treatment process parameters; while roundness, surface roughness and form the grinding process. Tensile surface residual stresses on the raceway of ball bearing rings changes to compression after grinding in both circumferential and axial directions. In grinding relatively higher compressive stresses were measured in axial direction compared to the circumferential direction. This experimental investigation also showed that the influence of heat treatment process parameters on the magnitude and distribution of residual stresses survived even after grinding process; i.e. heat treatment and grinding processes cannot be evaluated independently in process design for favourable residual stresses.

Manufacturing Residual Stress States in Heat Treatment Simulation of Bearing Rings

2006 ◽  
Vol 37 (1) ◽  
pp. 52-57 ◽  
Author(s):  
H. Surm ◽  
O. Kessler ◽  
F. Hoffmann ◽  
H.-W. Zoch
Keyword(s):  
Heat Treatment ◽  
Residual Stress ◽  
Stress States ◽  
Bearing Rings

Compensation of roundness deviations of bearing rings by heat treatment

2012 ◽  
Vol 43 (1-2) ◽  
pp. 48-55 ◽  
Author(s):  
J. Lütjens ◽  
H. Surm ◽  
M. Hunkel ◽  
H. Gafsi ◽  
V. Renken ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Bearing Rings

Influence of Machining and Heat Treatment on Deformations of Thin-Walled Bearings

2016 ◽  
Vol 862 ◽  
pp. 49-58 ◽  
Author(s):  
Dana Stancekova ◽  
Dušan Steklac ◽  
Jana Petru ◽  
Tomáš Zlámal ◽  
Marek Sadilek ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Experimental Measurement ◽  
Manufacturing Process ◽  
Bearing Steel ◽  
Comprehensive Analysis ◽  
Metallographic Analysis ◽  
Thin Walled ◽  
Bearing Rings

Paper deals with identification of the main causes of deformations of the thin-walled bearings and comprehensive analysis of the causes of bearing deformation and suggestion of the possible solutions. It deals with the analysis of bearing steel, its characteristics and causes of deformation of bearing rings during heat treatment and manufacturing process. Provides experimental measurement and report of uniformities on the surface of bearing rings - called oval and cradle, metallographic analysis of rings, as well as an analysis of various processes affecting the formation of deformations.​

Technology of Residual Stresses Relaxation by the Ultrasonic Vibrations

2015 ◽  
Vol 770 ◽  
pp. 66-69 ◽  
Author(s):  
Albert V. Korolev ◽  
Andrew A. Korolev ◽  
A.S. Jakovichin ◽  
S.A. Savran ◽  
A.F. Balaev ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Residual Stresses ◽  
Liquid Medium ◽  
Thermal Stabilization ◽  
Geometrical Parameters ◽  
Ultrasonic Vibrations ◽  
New Techniques ◽  
Special Machine ◽  
Bearing Rings

The paper studies the effectiveness of new techniques of stabilizing the geometrical parameters of bearing rings in comparison with the thermal stabilization. Processing of bearing rings is made on a special machine in a liquid medium where the ultrasonic vibrations are excited. It is shown that roundness of the rings after ultrasonic stabilization is substantially lower than after the heat treatment.

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