EXPERIMENTAL STUDY OF DOUBLE POINT CUTTING TOOL ON CHIP – TOOL INTERFACE TEMPERATURE IN TURNING (original) (raw)
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International Journal of Innovative Research in Science, Engineering and Technology, 2015
A special type of a tool is designed and made to have two cutting points for turning long workpieces and it may be termed as the double point cutting tool. The double point cutting tool has two cutting points which has the height difference of 0.5 mm and the distance between them is 6 mm. So that when the first cutting point takes 0.5 mm depth of cut and next to that the second cutting point also takes 0.5 mm depth of cut as the tool proceeds for turning. Hence the total machining time is reduced considerably. Investigation on main cutting force during turning of Mild Steel bar by using HSS Double Point Cutting Tool for different cutting conditions is presented in this Research article.
2017
In many manufacturing processes particularly during metal removing processes, it is sometimes desirable and often necessary to have information on the quantity of heat produced and therefore the increase in temperature and its distribution, heat generated at the tool-workpiece interface during machining is an important factor to solve the metal cutting problems such as dimensional accuracy, the surface integrity and the life of the tool. In the present work, the evolution of the cutting temperature was studied using a combined experimental and numerical approaches; the thermocouple method was used to measure the cutting temperature for turning operations of the steel AISI 1060. 3D cutting model was used to simulate and predict the thermal phenomenon of the heat propagation in the cutting tool, using digital COMSOL simulation software. Based on a comparison between the results of two approaches; numerical and experimental, it was found a correspondence to go up to 96%, taking into ac...
Procedia Materials Science, 2014
In the present context of sustainable manufacturing, investigation of cutting temperature during machining is extremely valuable to address metal cutting issues such as dimensional accuracy, surface finish and tool life. In this study, average chip-tool interface temperature was investigated considering the effect of cutting parameters and the type of coating (coated tools), namely, PVDapplied single-layer TiAlN and CVD-applied multi-layer TiCN/Al 2 O 3 /TiN during turning of hardened steel. Mathematical model which can predict the average chip-tool interface temperature was developed based on experimental observations which were obtained in the wide range of cutting conditions. A calibration setup based on tool-work thermocouple principle was developed to correlate the emf (electro motive force) and the interface temperature. R-squared value for the developed model found 0.9693, indicate that the developed model is reliable and could be used effectively for predicting the interface temperature within the domain of the cutting parameters for the given tool and work material pair. Experimental observations indicate that the interface temperature is higher for CVD-coated multi-layer coated tool in comparison to single-layer TiAlN, which get affected mostly by cutting speed followed by feed. However, depth of cut has negligible influence on interface temperature when using both the coated carbide tools.
International Journal of Engineering and Applied Sciences (IJEAS), 2017
Cutting tool life depends on the degree of resistance to wear on the cutting edge. Temperature rise due to heat generated in work piece and cutting tool interface was found to be responsible for tool wear. Dry cutting is necessary to prevent corrosive effect of coolants. On this basis, Rockwell class 'A' (HRA) hardness test was employed in testing the hardness of four selected single point cutting tools at varying temperature. The tools are High Speed Steel (HSS) tools (M4 and M1), and High Carbon Steel (HCS) tools (Q275 and A36) according to Society of American Engineers (SAE) steel grades. The temperature variation was achieved by heating the samples in a digital electric furnace at varying temperature from 150 o C to 750 o C as specified by the SAE standard, in step of 50 o C. The hardness number was read directly through a digital display unit of the Identec hardness tester, while determining the hardness of the cutting edge (tip) of the tool. The results obtained were analyzed using statistical regression model. From the experimental results, the high speed steel tools showed better hardness at higher temperatures than High carbon steel tools. The range of temperature that supported dry cutting was predicted.
EXPERIMENTAL STUDY OF DOUBLE POINT CUTTING TOOL ON FEED FORCE DURING TURNING OF MILD STEEL BAR
A special type of a tool is designed and made to have two cutting points for turning long workpieces and it may be termed as the double point cutting tool. The double point cutting tool has two cutting points which has the height difference of 0.5 mm and the distance between them is 6 mm. So that when the first cutting point takes 0.5 mm depth of cut and next to that the second cutting point also takes 0.5 mm depth of cut as the tool proceeds for turning. Hence the total machining time is reduced considerably. Investigation on feed force during turning of Mild Steel bar by using HSS Double Point Cutting Tool for different cutting conditions is presented in this Research article.
Review of Influence of Different Cutting Angles of Single Point Cutting Tool on Turning Operation
In order to improve surface finishing, reduce the production time and energy loss which is being wasted to re sharp the tools when they got blunt during machining, hence in accordance to this problem, in this research work the effect of different cutting angles on surface finishing have studied. The various angles using in our project while the other parameters like depth of cut, feed rate, cutting speed keeping constant. All the experiments will apply on mild steel with High Speed Steel HSS M7 (S400) grade material as cutting tool.
Turning is a machining process in which a cutting tool, typically a non-rotary tool bit, describes a helix toolpath by moving more or less linearly while the workpiece rotates.Machining of High Carbon High Chromium steel (HCHCr) is a challenge for production engineers in tool industry. In this research paper, a study on turning HCHCr Steel using tungsten carbide tool inserts is made by varying depth of cut, the cutting and feed rate speed one each at a time and keeping other two constant. The effect on process parameters like surface finish, material removal rate, tool wear, Cutting force, thrust force and temperature distribution on tool tip are discussed. Organised by: ATME College of Engineering, Mysuru, INDIA © 2020, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 12
Finite Element Analysis of Single Point Cutting Tool
IJMER
In this project, temperature at tool-tip interface is determined, generated in high-speed machining operations. Specifically, three different analyses are comparing to an experimental measurement of temperature in a machining process at slow speed, medium speed and at high speed. In addition, three analyses are done of a High Speed Steel and of a Carbide Tip Tool machining process at three different cutting speeds, in order to compare to experimental results produced as part of this study. An investigation of heat generation in cutting tool is performed by varying cutting parameters at the suitable cutting tool geometry. The experimental results reveal that the main factors responsible for increasing cutting temperature are cutting speed (v), feed rate (f), and depth of cut (d), respectively. It is also determined that change in cutting speed and depth of cut has the maximum effect on increasing cutting temperature. Various researches have been undertaken in measuring the temperatures generated during cutting operations. Investigators made attempt to measure these cutting temperatures with various techniques during machining. In this project, “Fluke 62 max IR thermometer” (Range -40 0C to 650 0C) is used for measuring temperature at tool-tip interface. Single point cutting tool has been solid modeled by using CAD Modeler Pro/E and FEA carried out by using ANSYS Workbench 14.5. Experimental work is done at “Khushi Engineering”, Nagpur. By varying various parameters the effect of those on temperature are compared with the experimental results and FEA results. After comparison nearly 4% variation is found in between the results.
This paper is a review of research work in last decade on temperature distribution in turning process. Research is going on to investigate the level of maximum temperature generated at tool rake face and to control this temperature thereby improving the tool life and quality of workpiece. In this study, the temperature generated on rake face of cutting tool and experimental methods for measurement of temperature are reviewed. Out of number of interface temperature measuring methods, the special attention has been paid to the tool work thermocouple as it is easy to apply and inexpensive as compared to other techniques. The procedure for the working of tool work thermocouple and the method of calibration is described in this paper. The calibration set up establishes the relationship between emf developed and the cutting temperature. To compare and validate the experimental results, the FEA model is the best way and also it helps to locate the highly temperature affected area on the tool insert.
Dutse Journal of Pure and Applied Sciences, 2022
The AISI 1029 steel type is often used in the turning process to manufacture fasteners, studs, and other engineering components under the costly effects of high temperatures. The paper exemplifies the basic use of Taguchi's optimization method in selecting cutting conditions and determining at which condition the optimal tool-workpiece interface temperature occurs in dry-turning the steel type on the lathe with a carbide-insert tool. Turning experiments were performed on an XL 400 lathe with the steel type in accordance with the L-9 Latin squares arrays designed with 0.5, 1, and 1.5 mm-depths of cut; 0.1, 0.2, and 0.3 mm/rev-feed rates; and 125, 250, and 500 m/min-cutting speeds as selected inputs, and measured tool-workpiece interface temperatures as the outputs. The inputs and outputs were analyzed using the Minitab-17 software-generated signal-to-noise ratios, main effect plots, contour and surface plots, and variance analysis by imbibing Taguchi's philosophy of the smaller-the-better. The result showed that the optimal interface temperature within the turning conditions was 29.5 o C at 125 m/min cutting speed, 0.1 mm/rev feed rate, and 1.5 mm depth of cut. The variance analysis at a 95% confidence level showed that the cutting speed contributed most to the temperature with an 88.15% value, followed by depth of cut with 5.33%, and feed rate with 33.33%. A validation test at the optimal cutting condition indicated 30.31 o C as the optimal interface temperature with an error of only 2.7% relative to the 29.5 o C-value obtained with the software's predictive regression equation.