Techanics Study on PcBN Cutting Tool Dry Turning Chilled Cast Iron

2011 ◽  
Vol 418-420 ◽  
pp. 1342-1345
Author(s):  
Yun Hai Jia ◽  
Zhi Qun Ye ◽  
Hai Zhu Wang ◽  
Hua Wei Jing
Keyword(s):  
Cast Iron ◽  
Feed Rate ◽  
Cutting Tool ◽  
Bending Strength ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Tool Material ◽  
Dry Turning ◽  
Cut Depth ◽  
Chilled Cast Iron

Chilled cast iron is a typical hard and brittle material, often be used to make all kinds of roller. According to chilled cast iron machining characteristics, cutting tool material should has high red hardness, good impact resistance and wear resistance, high bending strength and large thermal conductivity coefficient. For determination of the suitable cutting parameters in machining chilled cast iron by PcBN cutting tools dry turning, the samples which are prepared to be used in the experiment, 200 mm in length and 120 mm in diameter, are machined in lathe. During experiments, cutting tool parameters and dry turning parameters, such as edge chamfer width and angle, feed rate, cutting speed and cut depth are investigated. The suitable edge chamfer width and angle, cutting speed and feed rate are determined according to cutting tool life and cutting tools flank wear. Finally, edge chamfer width of 0.2 mm, edge chamfer angle of -15 degree, cutting speed of 90 m/min, feed rate of 0.15 to 0.2 mm/rev and cut depth of 0.3 mm gave the satisfied results.

Techanics Experiment Study on PcBN Cutting Tool Dry Turning Austenitic Stainless Steel AISI 304

2011 ◽  
Vol 341-342 ◽  
pp. 256-260
Author(s):  
Yun Hai Jia
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Feed Rate ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Aisi 304 ◽  
Dry Turning ◽  
Steel Aisi ◽  
Cut Depth ◽  
Stainless Steel Aisi

High deformation hardening, low thermal conductivity, high built-up edge tendency of austenitic stainless steels were the main factors that make their machinablity difficult. For determination of the suitable cutting parameters in machining austenitic stainless steel AISI 304 by PcBN cutting tools, the samples which were prepared to be used in the experiment, 300 mm in length and 60 mm in diameter, were dry machined in a numerical control lathe. During experiments, dry turning parameters, such as feed rate, cutting speed and cut depth were investigated. The suitable cutting speed and feed rate were determined according to workpieces surface roughness, cutting tools flank wear. Finally, cutting speed of 180 to 200 m/min, feed rate of 0.05 to 0.06 mm/rev and cut depth of 0.10 mm gave the satisfied results.

Techanics Experiment Study on PcBN Cutting Tool Dry Turning Austenitic Stainless Steel AISI 301

2011 ◽  
Vol 314-316 ◽  
pp. 1020-1024
Author(s):  
Yun Hai Jia
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Feed Rate ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Austenitic Stainless Steels ◽  
Cutting Parameters ◽  
Numerical Control ◽  
Dry Turning ◽  
Cut Depth

High deformation hardening, low thermal conductivity, high built-up edge tendency of austenitic stainless steels were the main factors that make their machinablity difficult. For determination of the suitable cutting parameters in machining austenitic stainless steel by PcBN cutting tools, the samples which were prepared to be used in the experiment, 300 mm in length and 60 mm in diameter, were dry machined in a numerical control lathe. During experiments, dry turning parameters, such as feed rate, cutting speed and cut depth were investigated. The suitable cutting speed and feed rate were determined according to workpieces surface roughness, cutting tools flank wear. Finally, cutting speed of 160 to 200 m/min, feed rate of 0.06 to 0.08 mm/rev and cut depth of 0.10 mm gave the satisfied results.

Optimization of Surface Roughness by Using Different Cutting Tools for Aluminum Alloy 6063

2020 ◽  
Vol 17 (2) ◽  
pp. 961-966
Author(s):  
Allina Abdullah ◽  
Afiqah Azman ◽  
B. M. Khirulrizwan
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloy ◽  
Optimum Condition ◽  
Feed Rate ◽  
Optimum Parameter ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Numerical Control ◽  
Depth Of Cut

This research outlines an experimental study to determine the optimum parameter of cutting tool for the best surface roughness (Ra) of Aluminum Alloy (AA) 6063. For the experiment in this research, cutting parameters such as cutting speed, depth of cut and feed rate are used to identify the effect of both cutting tools which are tungsten carbide and cermet towards the surface roughness (Ra) of material AA6063. The machining operation involved to cut the material is turning process by using Computer Numerical Control (CNC) Lathe machine. The experimental design was designed by Full Factorial. The experiment that had been conducted by the researcher is 33 with 2 replications. The total number of the experiments that had been run is 54 runs for each cutting tool. Thus, the total number of experiments for both cutting tools is 108 runs. ANOVA analysis had been analyzed to identify the significant factor that affect the Ra result. The significant factors that affect the Ra result of AA6063 are feed rate and cutting speed. The researcher used main effect plot to determine the factor that most influenced the surface roughness of AA6063, the optimum condition of surface roughness and the optimum parameter of cutting tool. The factor that most influenced the surface roughness of AA6063 is feed rate. The optimum condition of surface roughness is at the feed rate of 0.05 mm/rev, cutting speed of 600 rpm and depth of cut of 0.10 mm. While the optimum parameter of cutting tool is cermet insert with the lowest value of surface roughness (Ra) result which is 0.650 μm.

Study on the Cutting Properties about Magnesium Alloy when Dry Turning with Kentanium Cutting Tools

2010 ◽  
Vol 102-104 ◽  
pp. 653-657 ◽  
Author(s):  
Xu Hong Guo ◽  
Li Jun Teng ◽  
Wei Wang ◽  
Ting Ting Chen
Keyword(s):  
Surface Roughness ◽  
Magnesium Alloy ◽  
Tool Wear ◽  
Cutting Force ◽  
Feed Rate ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Cutting Depth ◽  
Dry Turning ◽  
Main Influence

In recent years, the machinability of magnesium alloy is concerned more and more by the public. In this paper, a study on the cutting properties of magnesium alloy AZ91D when dry turning with kentanium cutting tools is presented. It shows the cutting force measured by a data acquisition system which is made up of Kistler9257B piezoelectric crystal sensor dynamometer, Kistler5070A10100 charge amplifier and computer. The effect of cutting parameters on cutting force was studied, and the experimental formula was built. The tool wear and chip characteristics were observed with KYKY-EM3200 electron scanning microscope and EDAX PV9900 alpha ray spectrometer, while the surface roughness of the workpiece was measured with 2205 profilometer. Results showed that the cutting depth was the main influence factor on cutting force, followed by feed rate and cutting speed . The main form of tool wear showed to be diffusive wear and adhesive wear. The feed rate had the main influence on chip form and the workpiece surface roughness, cutting speed was less effective, the cutting depth was the least.

Experimental Research on High-Speed Machining Pearlitic Gray Cast Iron

2006 ◽  
Vol 315-316 ◽  
pp. 459-463 ◽  
Author(s):  
Yi Wan ◽  
Zhan Qiang Liu ◽  
Xing Ai
Keyword(s):  
Cast Iron ◽  
High Speed ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
High Speed Machining ◽  
Workpiece Surface ◽  
Tool Materials ◽  
Boron Nitrogen

High-speed machining (HSM) has received great interest because it leads to an increase of productivity and a better workpiece surface quality. However, tool wear increases dramatically due to the high temperature at the tool/workpiece interface. Proper selection of cutting tool and cutting parameters is the key process in high-speed machining. In this paper, experiments have been conducted to high speed milling pearlitic cast iron with different tool materials, including polycrystalline cubic boron nitrogen, ceramics and coated cemented carbides. Wear curves and tool life curves have been achieved at various cutting speeds with different cutting tools. If efficiency is considered, Polycrystalline Cubic Boron Nitrogen cutting tool materials are preferred in finish and semi-finish machining. According to the different hardness of cast iron, the appropriate range of cutting speed is from 850 m/min to 1200m/min.

scholarly journals Comparative Study on the Performance of ZTA Cutting Tool with the Addition of Different Particle Size of MgO Additive

2020 ◽  
Vol 1010 ◽  
pp. 181-186
Author(s):  
Raqibah Najwa Mudzaffar ◽  
Hanani Hani Mohd. Khairy ◽  
Nur Khairunnisa Mohd. Zaki ◽  
Ahmad Zahirani Ahmad Azhar ◽  
Hanisah Manshor ◽  
...  
Keyword(s):  
Particle Size ◽  
Feed Rate ◽  
Cutting Tool ◽  
Flank Wear ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Experimental Result ◽  
Machining Parameters ◽  
Crater Wear ◽  
Matlab Programming

This paper investigated the performance of ZTA cutting tool with the addition of different particle size of MgO additive. Therefore, the objective of this research is to compare the effects of machining parameters on tool wears of ZTA cutting tools added with micro and nanoparticle of MgO. The experiments were conducted using BridgePort-Romi Powerpath CNC machine using a tool holder Sandvik Coromant (CoroTurn CCLNR 164D-4) to hold the cutting tools properly. The parameters are set up as cutting speeds used between range 354 to 472 m/min, feed rate from 0.1 to 0.5 mm/rev with a constant depth of cut of 0.2 mm. Three types of wear were analyzed which are flank wear, crater wear and tool chipping. Flank wear and crater wear images captured using measuring microscope (NIKON MM-400/L) and the crater wear areas are analyzed using MatLab programming software. Tool chipping is observed via SEM (JEOL JSM-5600). The experimental result shows that flank wear and crater wear increase when cutting speed and feed rate increase. ZMN cutting tool shows lower value of flank wear at 0.143 mm and 3.741 mm2 for crater wear than ZMM, 0.321 mm and 3.808 mm2 respectively. On the contrary, cutting speed did not affect the tool chipping severely as feed rate. Moreover, ZMN also shows that the tool breakage occurred severely than ZMM due to the high load on the tool nose.

Application of Minimum Quantity Lubrication for Drum High Clutch in Turning Process

2019 ◽  
Vol 947 ◽  
pp. 160-166
Author(s):  
Nutrada Khumjeen ◽  
Somkiat Tangjitsitcharoen
Keyword(s):  
Tool Life ◽  
Feed Rate ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Minimum Quantity Lubrication ◽  
Cutting Fluid ◽  
Cutting Condition ◽  
Turning Process ◽  
Minimum Quantity

The turning Process is the main processes used in automotive parts from more productivity, it requires the cutting velocity and feed rate high. And from those cutting, it causes high temperatures on cutting and a tool life of cutting tools decreased. Therefore using of cutting fluid (Coolant) is one of the commonly used methods to reduce temperatures that occur while cutting, reducing the wear of cutting tool and helps extend the tool life of the cutting tool. However, cutting fluid it's not always a good way, from the high cost and environmental problems issues. Using the MQL technique is one of the alternatives that using more nowadays to solve the above mentioned problems. This research proposed a MQL technique substitution of cutting fluid that using in the current process by applying in order to obtain the proper cutting condition for carbon steel material grade SAPH370 with the carbide cutting tool. The cutting conditions will acceptable from the minimum quantity of lubricant and the maximum of tool life of cutting tool under surface roughness (Ra) is less than 1.2 μm. The proper cutting condition determined at a feed rate of 0.10 mm/rev, a cutting speed of 300 m/min and a flow rate of 5ml/hr.

scholarly journals Investigation Of The Effects Of Machining Parameters On Tool Life And Surface Roughness During The Face Milling Of The NiTi Shape Memory Alloy With Uncoated Tools

2020 ◽  
Author(s):  
Emre Altas ◽  
Hasan Gokkaya ◽  
Dervis Ozkan
Keyword(s):  
Surface Roughness ◽  
Shape Memory ◽  
Feed Rate ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Average Surface Roughness ◽  
Nose Radius ◽  
Average Surface ◽  
Milling Operations

Shape memory alloys (SMAs) are increasingly used in the fields of aviation, automotive and biomedicine due to their unique properties. Nickel-Titanium (NiTi) alloy materials, which are one of the shape memory alloys, are among the most frequently used alloy materials. The shape memory and super elastic effects of NiTi alloys, high ductility and deformation hardening make it difficult to shape burr. An additional problem is the formation of a white layer during machining. In this study, surface milling operations were performed in dry cutting conditions with uncoated cutting tools with different nose radii. The processing parameters were determined based on the experience gained as a result of the preliminary tests. Tungsten carbide cutting tools with different nose radii (0.4mm and 0.8mm) were used for the milling operations. Milling was carried out at three different cutting speeds (20, 35, 50 m/min), feed rates (0.03, 0.07, 0.14 mm/tooth), and a constant axial cutting depth (0.7 mm). As a result of our experimental studies, the best tool life was found to be in 0.8 mm nose radius cutting tools at 20 m/min cutting speed and 0.03 mm/tooth feed rate (0.264 mm). The minimum average surface roughness was found after milling with 0.8 mm nose radius cutting tool at 20 m/min cutting speed and 0.03 mm/tooth feed rate (0.346 μm). It has been determined that increasing the cutting tool nose radius reduces both the flank wear over the cutting tool and the average surface roughness.

PERFORMANCE OF UNCOATED CARBIDE CUTTING TOOL WHEN MACHINING CAST IRON IN DRY CUTTING CONDITION

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1796-1802 ◽  
Author(s):  
A. G. JAHARAH ◽  
C. H. CHE HASSAN ◽  
M. J. GHAZALI ◽  
A. B. SULONG ◽  
M. Z. OMAR ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Cast Iron ◽  
Feed Rate ◽  
Cutting Forces ◽  
Cutting Tool ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
Dry Cutting ◽  
Carbide Cutting Tool ◽  
Cutting Speeds

This paper presents the performance of uncoated carbide cutting tool when machining cast iron in dry cutting conditions. Experiments were conducted at various cutting speeds, feed rates, and depths of cut according to Taguchi method design of experiment using a standard orthogonal array L 9(34). The effects of cutting speeds (100-146 m/min), feed rates (0.20-0.35 mm/tooth) and depths of cut (1.0-2.0 mm) on the tool life, surface roughness and cutting forces were evaluated using ANOVA. Results showed that the effects of cutting speed, depth of cut and the feed rate were similar affecting the failure of the carbide cutting tools within the range of tested machining parameters. The contribution of cutting speed, feed rate, and depth of cut in controlling the tool life were 32.12%, 38.56% and 29.32% respectively. Whereas, the cutting speed was the main factor influencing the average surface roughness (Ra) value followed by feed rate. These factors contribute 60.53% and 35.59% respectively to the Ra value. On the other hand, cutting forces generated were greatly influenced by the depth of cut (66.52%) and the feed rate (32.6%). Cutting speed was found insignificant in controlling the generated cutting forces.

Effects of deep cryogenic treatment on machinability, hardness and microstructure in dry turning process of tempered steels

2020 ◽  
pp. 095440892097944
Author(s):  
Menderes Kam
Keyword(s):  
Cryogenic Treatment ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Point Of View ◽  
Turning Process ◽  
Deep Cryogenic Treatment ◽  
Dry Turning ◽  
Control Factors ◽  
Heat Treated ◽  
Hardness Values

This study investigated the effects of Deep Cryogenic Treatment (DCT) on machinability, hardness, and microstructure in dry turning process of AISI 4140 (48-51 HRc) tempered steels with ceramic cutting tools on the surface roughness (Ra). DCT process of steels has shown significant improvement in their mechanical properties. In this context, experiments were made with Taguchi L16 method and optimum values were determined. Three different values for each control factors as: different heat treated samples, cutting speeds (160, 200, 240, 280 m/min), feed rates (0.08, 0.12, 0.16, 0.20 mm/rev) were selected. As a result, the lowest Ra value was found to be 0.159 µm for the DCTT36 sample at a cutting speed of 240 m/min, a feed rate of 0.08 mm/rev. The optimum Ra value was the lowest for the DCTT36 sample compared to the other samples as 0.206 µm. The hardness values of the micro and macro were highest for the DCTT36 sample. Microstructural point of view Scanning Electron Microscopy (SEM) point of view, the DCCT36 sample showed that best results owing to its homogeneity. It was concluded that lower Ra values can be obtained with ceramic cutting tool in dry turning experiments according to the studies in the literature review. It is thought to be preferred as an alternative to cylindrical grinding process due to lower cost.

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