Tornalama operasyonunda yığılma faktörü ve kesme parametreleri kullanılarak kesme kuvvetlerinin ampirik modellenmesi

Bahattin YILMAZ, Abdulkadir GÜLLÜ
2020 Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi  
Highlights: Graphical/Tabular Abstract  Modeling of cutting forces by curve fitting method  Effects of cutting parameters on built-up factor  The relationship between cutting forces and built-up factor Figure A. Three different equation types used in curve fitting studies Purpose: The purpose of this study is to determine the effects of cutting parameters cutting forces and built-up factor during turning operation and to model these effects by using three different equation types. It is
more » ... n types. It is aimed to model by establishing a relationship between cutting force and built-up factor with new concepts derived. It is aimed to develop a different approach apart from the cutting parameters in modeling of forces and built-up factor with the models created. Theory and Methods: In the scope of this research, statistical and experimental studies were used. As a result of turning tests performed by using different cutting parameters, the cutting forces were measured and the data were collected. These data were input values for different statistical analyzes and curve fitting studies. As a result of statistical studies, the modeling of cutting forces was carried out by using different equation types. Results: The most effective cutting parameters for cutting forces and built-up factor and the change of forces and built-up factor depending on these parameters were determined. Curve fitting studies were performed by using three different types of equations to model the cutting forces. Equations are derived by determining the correlation coefficient for the types of equations. New concepts based on cutting forces and built-up factors were developed and the forces were modeled on the built-up factor. Control experiments were performed to verify the accuracy of their models. Conclusion: It was determined that the most effective parameter on the cutting forces was the depth of cut and the feed rate, and the increase of these parameters increased the forces. It has been determined that the most effective parameters for the built-up factor are the depth of cut and the feed rate, increasing the built-up factor with increasing feed speed, and the increasing depth of cut decreases the built-up factor. The developed models showed acceptable results. Metal cutting is widely used than other production methods. Cutting forces are the leading parameters that determine process efficiency in machining operations. Cutting forces inform us about the magnitude of energy consumption during the operation. By providing certain conditions, the creation of low cutting forces reduces the costs. This is due to the accurate determination of the cutting parameters. In this study, the experiments were performed with three different cutting speeds, three different feed rates and three different cutting depths by using of AISI 1050. As a result of the experiments, the most effective cutting parameters were determined in order to keep under control of cutting forces values and get the best results. New concepts are defined by analyzing the build-up factor. These defined concepts and the relationship between machining parameters and cutting forces are expressed by mathematical models. Thanks to the mathematical models developed with this study, the force formation is explained through parameters and the appropriate processing parameters are provided for the ideal force values.
doi:10.17341/gazimmfd.537386 fatcat:7mgtczrcafhnjlc2ms7cqixzbu