scholarly journals The comparison of the results of the research concerning CBN grinding wheel topography parameters changing with the wheel wear in the context of the selection of important parameters

Mechanik ◽  
2015 ◽  
pp. 713/190-713/193
Author(s):  
Andrzej Kawalec ◽  
Anna Bazan ◽  
Marek Krok ◽  
Ireneusz Piotr Chmielik
Keyword(s):  
Grinding Wheel ◽  
Wheel Wear ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Comparison Of The Results ◽  
Cbn Grinding Wheel ◽  
Selection Of

Measurement of Vitrified CBN Grinding Wheel Topography

2003 ◽  
Vol 238-239 ◽  
pp. 301-306 ◽  
Author(s):  
R. Cai ◽  
W.B. Rowe ◽  
Michael N. Morgan ◽  
B. Mills
Keyword(s):  
Grinding Wheel ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Cbn Grinding Wheel ◽  
Vitrified Cbn

A Quick-Test Method to Determine the Grinding Wheel Topography Based on Acoustic Emission

2011 ◽  
Vol 325 ◽  
pp. 282-286 ◽  
Author(s):  
Walter Lindolfo Weingaertner ◽  
Adriano Boaron
Keyword(s):  
Acoustic Emission ◽  
Test Method ◽  
Grinding Wheel ◽  
Signal Acquisition ◽  
Quick Test ◽  
Dressing Tool ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Grinding Machine ◽  
Cbn Grinding Wheel

A quick-test method for the determination of the topographic characteristics of a CBN grinding wheel is developed based on acoustic emission technology. For implementing the strategy, an acoustic emission (AE) monitoring system was integrated into a 3 axis CNC grinding machine. A computer with specific software allows the signal acquisition and visualization of the AERMS signals, which are originated through interferences between the grinding wheel and dressing tool in a range of a few micrometers. The acquired AERMS signals from these interferences are used in order to establish an on-line map from the grinding wheel periphery, indicating the active cutting grains during the contact amid grinding wheel and dressing tool. The implementation of such activity supported by AE has led to satisfactory results regarding the required time to evaluate the strategy as well as the verified correlation with different grinding topographies caused by changes in the dressing parameters.

scholarly journals EFFECTS OF GRINDING WHEEL WEAR ON THE THERMO-MECHANICAL LOADS IN THE GRINDING PROCESS

2021 ◽  
Vol 2021 (3) ◽  
pp. 4675-4682
Author(s):  
M. Bredthauer ◽  
◽  
T. Bergs ◽  
S. Barth ◽  
P. Mattfeld ◽  
...  
Keyword(s):  
Negative Influence ◽  
Bearing Steel ◽  
Grinding Wheel ◽  
Grinding Wheels ◽  
Wheel Wear ◽  
Thermally Induced ◽  
Creep Feed ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Cooling Lubricant

A large amount of the energy produced during grinding is converted into heat. Since not all of the heat can be dissipated by the cooling lubricant, thermally induced displacements in machine components occur, which has a negative influence on the component quality. The generation and distribution of heat is influenced by the change of the grinding wheel topography due to wear.Therefore, the wear mechanisms of grains were identified and quantified and their effect on heat generation was investigated. For this purpose, creep feed grinding investigations on bearing steel were conducted with electroplated CBN grinding wheels with different grain specifications.

Resin Bonded CBN Grinding Wheel Dressing by Laser — Simulation and Experiment

2006 ◽  
Vol 304-305 ◽  
pp. 38-42 ◽  
Author(s):  
Ming Chen ◽  
Y.P. Ma ◽  
Gang Liu ◽  
Dao Hui Xiang ◽  
Fang Hong Sun
Keyword(s):  
Laser Scanning ◽  
Grinding Wheel ◽  
3D Laser Scanning ◽  
Practical Application ◽  
Laser Dressing ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Simulation And Experiment ◽  
Cbn Grinding Wheel ◽  
Overlap Coefficient

Due to the large difference in thermal properties of the resin and the abrasive grits, the laser-assisted dressing technology is of great interest for grinding wheel preparation. From a viewpoint of thermal induced material removal mechanism, a numerical method was presented to simulate the laser dressing process. The numerical simulation results could reveal the relations between the laser parameters and the groove formation. The overlap coefficient was introduced for practical application. Simulation for the variation of the number of active grinding points was also made for non-uniform wheel topography. Based on the numerical modeling, the suitable grinding^wheel surface topography can be achieved through the laser-assisted dressing technology. The comprehensive researches on the laser-assisted dressing process control, grinding wheel topography reconfiguration by 3D laser scanning technology and analyses of grinding temperature were made. A series of grinding tests with the laser-assisted dressed grinding wheel and mechanically dressed grinding wheel were conducted for comparison. The results proved the feasibility of laser-assisted dressing for resin bonded superabrasive grinding wheels and revealed the importance of choosing appropriate laser dressing parameters.

Einfluss der Schärfparameter auf die Schleifscheibentopographie*/Influence of the sharpening parameters on the grinding wheel topography

2019 ◽  
Vol 109 (07-08) ◽  
pp. 582-588
Author(s):  
E. Uhlmann ◽  
A. Muthulingam
Keyword(s):  
Economic Efficiency ◽  
Experimental Investigations ◽  
Grinding Wheel ◽  
Conditioning Process ◽  
Wheel Topography ◽  
Process Reliability ◽  
Grinding Wheel Topography ◽  
The Relationship

Einen wesentlichen Bestandteil der Schleiftechnik ist der Konditionierprozess zur Herstellung der Schleifscheibenform und -schnittigkeit. Durch das Schärfen wird die Bindung zurückgesetzt und der notwendige Schleifkornüberstand und Spanraum geschaffen. Ein CNC-gesteuerter Schärfprozess kann zur prozesssicheren und ressourceneffizienten Einstellung der gewünschten Schleifbelagstopographie genutzt werden. Umfangreiche Schärfuntersuchungen sollen hierbei Aufschluss über die Wirkzusammenhänge zwischen Schärfeinstellgrößen und Schärfergebnis geben.   An essential part of grinding technology is the conditioning process for the generation of the grinding wheel shape and of a sharp topography. Through the sharpening process the required cutting grains are exposed from the bond and sufficient chip space is ensured by putting back the bonding. A CNC-controlled sharpening process can lead to an improvement in process reliability and the economic efficiency. Extensive experimental investigations were carried out to determine the relationship between the sharpening parameters and the sharpening result.

Einfluss der Abrichtgrößen beim Schleifen*/Influence of dressing parameters on the grinding process - Systematic research of dressing parameters on workpiece roughness and surface integrity

2016 ◽  
Vol 106 (01-02) ◽  
pp. 44-50
Author(s):  
T. Lierse ◽  
B. Karpuschewski ◽  
T. R. Kaul
Keyword(s):  
Aluminum Oxide ◽  
Surface Integrity ◽  
Cvd Diamond ◽  
Grinding Wheel ◽  
Systematic Research ◽  
Grinding Process ◽  
Wheel Topography ◽  
Grinding Wheel Topography

Dieser Beitrag zeigt, dass die durch die Abrichtparameter erzeugte Schleifscheibentopographie nicht nur die Oberflächengüte des Werkstücks, sondern auch dessen Eigenspannungszustand in der Werkstückrandzone in weiten Grenzen verändert. Die Untersuchungen zum Abrichten von Korundschleifscheiben mit einer CVD-Diamantformrolle stellen den Zusammenhang zwischen dem Abrichten unterschiedlicher Schleifscheiben zur Bauteilqualität in Form der Oberflächenrautiefe und randzonennahen Eigenspannungen her.   The quality of the workpiece rim is changed by every grinding process. The grinding wheel topography created by the dressing process has not only influence on the workpiece roughness but also on the surface integrity. The pointed research using aluminum oxide abrasive wheels dressed by CVD diamond dressing discs shows a correlation between the dressing parameters, the workpiece roughness and the surface integrity.

Quantitative Beschreibung der Schleifscheibentopographie*/Quantitative description of the grinding wheel topography. Application-oriented characterization of the grinding wheel topography based on quantitative parameters

2018 ◽  
Vol 108 (06) ◽  
pp. 441-447
Author(s):  
S. Barth ◽  
J. Röttger ◽  
D. Trauth ◽  
P. Mattfeld ◽  
T. Bergs ◽  
...  
Keyword(s):  
Mechanical Load ◽  
Quantitative Description ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Surface Zone ◽  
Quantitative Parameters ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Lack Of Knowledge

In der Schleiftechnik besteht ein erhebliches Wissensdefizit über den Einfluss der Schleifscheibentopographie auf das Schleifprozessverhalten und die Ausbildung der Bauteilrandzoneneigenschaften. Ziel der Untersuchungen war daher die Identifikation und Analyse quantitativer Kenngrößen zur Beschreibung der geometrischen Schleifscheibentopographieeigenschaften. Diese Kenngrößen ermöglichten fortführend die Modellierung des thermo-mechanischen Belastungskollektivs im Schleifprozess in Abhängigkeit von der Schleifscheibentopographie.   In grinding technology, there is a considerable lack of knowledge about the influence of the grinding wheel topography on the process behaviour and the formation of the component surface zone properties. Therefore, the aim of the investigations was to investigate quantitative parameters for the description of the geometrical topography properties. These parameters enable to model the thermo-mechanical load collective in the grinding process as a function of the grinding wheel topography.

COMPARISON OF EXPERIMENTALLY MEASURED AND SIMULATED WORKPIECE AND GRINDING WHEEL TOPOGRAPHY USING A NEW DRESSING MODEL

2016 ◽  
Vol 40 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Abdalslam Darafon ◽  
Andrew Warkentin ◽  
Robert Bauer
Keyword(s):  
Surface Finish ◽  
Metal Removal ◽  
Ground Surface ◽  
Cutting Edge ◽  
Edge Density ◽  
Grinding Wheel ◽  
Workpiece Surface ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Grinding Conditions

This paper presents a new empirical model of the dressing process in grinding which is then incorporated into a 3D metal removal computer simulator to numerically predict the ground surface of a workpiece as well as the dressed surface of the grinding wheel. The proposed model superimposes a ductile cutting dressing model with a grain fracture model to numerically generate the resulting grinding wheel topography and workpiece surface. Grinding experiments were carried out using “fine”, “medium” and “coarse” dressing conditions to validate both the predicted wheel topography as well as the workpiece surface finish. For the grinding conditions used in this research, it was observed that the proposed dressing model is able to accurately predict the resulting workpiece surface finish for all dressing conditions tested. Furthermore, similar trends were observed between the predicted and experimentally-measured grinding wheel topographies when plotting the cutting edge density, average cutting edge width and average cutting edge spacing as a function of depth for all dressing conditions tested.

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