Marian Borzan

Researches Regarding the Influence of Cutting Regime on Processed Surface in Aluminum Alloys Turning Process

The main purpose of this paper is to analyze the influence of cutting regime parameters in case of dry turning of an aluminum alloy. For turning process of the aluminum alloy was used Sandvik insert DCGX 11 T3 08 Al H10. The influence of the main cutting parameters on the surface quality was analyzed using a statistical method (ANOVA) used to test differences between two or more means. Based on a mathematical model can be calculated the surface roughness taking into account the cutting speed, the feed rate and the depth of cutting.

Using Six Sigma Methodology to Reduce Nonconformities

The current paper describes the application of the Six Sigma methodology for reducing the number of scrapped parts on the manufacturing line at Start Transmission Comp. The paper shows how the five steps of the method, namely Definition, Measurement and Analysis, Improvement and Control, are applied, as well as the methods and quality tools used.

The Influence of the Cutting Speed and Feed Rate on the Machinability Ratings in Machining of AISI 1045 Carbon Steel and AlSI1MgMn Aluminium Alloy

The research presented in this paper refers to the study of the influence of feed and cutting speed on the cutting forces, temperatures and chips formation in turning of AISI 1045 carbon steel and AlSi1MgMN aluminium alloy. This work presents both finite element simulation and experimental tests. Parameters have been considered variable in the process are cutting speed and feed, and depth of cut and tool geometrical parameters were kept constant. The purpose of the experimental procedure it was the acquisition data for cutting forces and temperatures by on-line monitoring, with KISTLER dynamometer for cutting forces and Flyr System ThermaCAM SC640 termography camera for temperatures. Both results obtained by finite element simulation and experimental tests show that the feed increasing lead to increased cutting forces and temperatures. Also, are presented the type of the chip obtained in orthogonal cutting of the two materials.