Numerical analysis of surface integrity in parallel turning Part A: Influence of cutting tool nose radius

2020 ◽  
Author(s):  
Veldi Kanakaraju ◽  
Faisal Hassan ◽  
Kalidasan Rathinam
Keyword(s):  
Numerical Analysis ◽  
Surface Integrity ◽  
Cutting Tool ◽  
Nose Radius ◽  
Tool Nose Radius

The Application of Tool Nose Radius Compensation in the Numerical Control Turning

2014 ◽  
Vol 971-973 ◽  
pp. 772-776
Author(s):  
Qi Hong Huang
Keyword(s):  
Service Life ◽  
Cutting Tool ◽  
Numerical Control ◽  
Conical Surface ◽  
Nose Radius ◽  
Precision Control ◽  
Circular Surface ◽  
Radius Compensation ◽  
Compensation Function ◽  
Tool Nose Radius

Tool nose radius compensation function is widely used in the numerical control turning, it is the key and difficult point for the numerical control turning .Correct and flexible use of tool nose radius compensation function is very important for the machining precision control of conical surface, circular surface and curved surface and improving the service life of the cutting tool.

scholarly journals An Investigation on Effect of Depth of Cut, Feed Rate and Tool Nose Radius on Induced Vibration and Surface Roughness during Hard Turning of 41Cr4 Alloy Steel Using Response Surface Methodology

2016 ◽  
Vol 7 ◽  
pp. 32-46
Author(s):  
Christopher Okechukwu Izelu ◽  
Samuel Chike Eze
Keyword(s):  
Surface Roughness ◽  
Response Surface Methodology ◽  
Feed Rate ◽  
Hard Turning ◽  
Cutting Tool ◽  
Depth Of Cut ◽  
Work Piece ◽  
Dominant Effect ◽  
Nose Radius ◽  
Tool Nose Radius

This paper describes an aspect of a set of turning experiments performed in attempt to model, predict and optimize the machining induced vibration and surface roughness as functions of the machining, tool and work-piece variables during hard turning of 41Cr4 alloy special steel, with standard cutting tool, on a conventional lathe. Amongst others, the input variables of interest include the depth of cut, feed rate and tool nose radius. The response surface methodology, based on central composite design of experiment, was adopted, with analysis performed in Design Expert 9 software environment. Quadratic regression models were suggested, and proved significant by an analysis of variance, for the machining induced vibration of the cutting tool and surface roughness of the work-piece. They also have capability of being used for prediction within limits. Analysis of variance also showed the depth of cut, feed rate and tool nose radius have significant effect on the machining induced vibration and surface roughness. Whereas the depth of cut has dominant effect on the machining induced vibration, the tool nose radius has dominant effect on the surface roughness. The optimum setting of the depth of cut of 1.33095 mm, feed rate of 0.168695 mm/rev, and the tool nose radius of 1.71718 mm is required to minimize the machining induced vibration at 0.08 mm/s2 and surface roughness at 6.056 μmm with a desirability of 0.830.

The Influence of Process Variables on Machinability of Hardened Tool Steel during the Hard Turning under Eco-Friendly Cooling Environment

2014 ◽  
Vol 592-594 ◽  
pp. 781-785
Author(s):  
Kannappan Venkatesh ◽  
Thiyagarajan Senthilvelan
Keyword(s):  
Tool Life ◽  
Tool Steel ◽  
Hard Turning ◽  
Cutting Tool ◽  
Air Pressure ◽  
Compressed Air ◽  
Air Cooling ◽  
Process Variables ◽  
Nose Radius ◽  
Tool Nose Radius

Recent developments in cutting tool technology and its environmental impact have made significant revolutions in hard turning process thereby increasing the productivity level and enhancing the surface integrity of machined components competitively. In this experimental work, the machinability aspects, surface finish and tool life w`ere investigated during hard turning of hardened AISI D3 tool steel work materials with wiper geometry ceramic inserts under eco-friendly compressed air cooling environment. The process variables such as cutting speed, feed rate, tool nose radius, hardness levels of work materials and compressed air pressure were considered for this study. Since the tool nose design influences the machinability aspects, the cutting tool nose radius was considered as one of the vital process parameters. The design of experimental sequence and analysis of experiment data were carried with the help of Design Expert, DOE software. The combinations of Taguchi L16 orthogonal array and ANOVA technique have been applied for evaluating the process outcomes with reference to cutting variables. From the current experiment results, it is observed that combination of wiper ceramic insert with large nose radius and lower levels of compressed air pressure and work piece hardness (HRC) were resulting in higher surface quality with prolonged cutting tool life.

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