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In this article, a methodology combining several analytical and experimental techniques is presented for optimizing the key process parameters in plunge centerless grinding of Inconel 718 and Ti-6Al-4V superalloy fasteners in two phases: (i) modeling of process constraints using experimental design and statistical regression, and (ii ...
process 120 11 20 3 Helium 150 10 20 3 Helium Gas metal-arc process 275 29 200 20 Argon-helium 300-320 30 200 20 Argon-helium »*"•*. this. Typical joint designs used in this work are shown in Fig. 1. The use of helium as shielding gas resulted in better weld penetration than did the use of argon. Results Mechanical Properties of Inconel 718 ...
SA wheel is suitable for grinding Inconel 718, and the grinding depth has a great effect on the surface integrity in grinding it [13]. However, little attention has been paid to the grindability of SLM Inconel 718. Therefore, the influence of anisotropic microstructures on the grinding process and finished surface integrity remains unclear.
To optimize the CBN grinding with different bonded wheels, a Multiple Criteria Decision Making (MCDM) methodology was used. Creep feed grinding of superalloys, Ti-6Al-4V and Inconel 718, has been modeled by utilizing neural networks to optimize the grinding process.
This paper will provide detailed analysis for better understanding of tribological during the machining process of Inconel 718 alloy using a multi-layer TiAlN/AlCrN-coated carbide ball end inserted in dry cutting condition. The analysis focused on the relationship of tool wear with cutting temperature, cutting force, and surface integrity.
Jul 29, 2017· Nickel-based superalloy, Inconel 718, owing to its superior high-temperature strength, excellent fatigue, and corrosion resistance, has been widely used in the aerospace industry. However, there are inherent problems associated with the conventional machining of Inconel 718 superalloy. Therefore, in this work, investigation on machining of Inconel 718 using a hybrid machining process .
In this thesis, two methods are investigated to improve process performance in plunge centerless grinding of Inconel 718 and Ti-6Al-4V superalloy fasteners: (i) economic optimization of grinding process parameters and (ii) reduced quantity lubrication using a graphite nanoplatelet-enhanced grinding .
Inconel bars are super alloys that are applicable in nuclear, aerospace, chemical processing, petrochemical, and marine industries. Advance Grinding Services also boasts its Inconel metal products that are widely used in extreme applications and environment. Inconel Metals are also termed as superalloys. They are nickel-based alloys that display excellent traits like high resistance to ...
The machining experiment was performed using Inconel 718. Cutting tools were tested without any cutting edge preparation and without coatings in the cutting process of Inconel 718. Flank wear was measured during cutting tests of end-mills on an optical microscope. Cutting forces were measured and analysed during milling of Inconel 718.
Abstract: The optimization of micro milling electrical discharge machining (EDM) process parameters of Inconel 718 alloy to achieve multiple performance characteristics such as low electrode wear, high material removal rate and low working gap was investigated by the Grey-Taguchi method.
Optimization of Process parameters in hot machining of Inconel 718 alloy using FEM A. Kiran Kumar1 and Dr. P. Venkataramaiah2 1Assistant Professor, Department of Mechanical Engineering, GITAM, Hyderabad, India. Email: kirankumarabbili@yahoo 2Professor, Department of Mechanical Engineering, SV University, Tirupati, India.
Nov 14, 2018· In this work, the surface integrity of nickel-based superalloy Inconel 718, involving morphological structure, surface roughness, residual stress and structural domain size, was characterized systematically. A novel predicted model of grinding parameters optimization was proposed based on linear weighting function.
Jul 29, 2016· International Journal of Abrasive Technology; 2016 Vol.7 No.3; Title: A study of multiobjective parametric optimisation of electric discharge diamond cut-off grinding of Inconel 718 Authors: Deepak Rajendra Unune; Harlal Singh Mali. Addresses: Department of Mechanical Engineering, Malaviya National Institute of Technology, Jaipur Jaipur-302017, Rajshtan, India ' Department of .
Electrochemical grinding (ECG) is a compound machining technique composed of ECM and mechanical grinding. During the ECG process, a kind of soft passive oxide film is generated on the surface of metal materials with electrochemical reaction, and then be removed by abrasive erosion immediately so that the inside metal materials can bear out for the consecutive electrochemical dissolution [14,15].
This paper focuses on investigating the optimization of process parameters using Taguchi L9 Orthogonal array method for machining operations in turning of Inconel 781 with the aid of special tungsten carbide inserts. The optimization of speed(s), feed(f), Material Removal Rate (MRR) and Temperature(T) considered with relation to the tolerances achieved and accuracy of the machining is ...
Grinding wheels can be prepared with complex forms for finishing 3D-printed Inconel 718 and titanium 6-4 parts. Using a grinding process with a pre-formed wheel is an effective way to finish a relatively large batch of parts. In addition to precision grinding, abrasive tools can be also used for free-form finishing in manual or robotic mode.
Jan 27, 2017· Inconel 718 is one of the alloys that have relatively poor machinability in the conventional machining processes; due to its work-hardening nature, retention of high strength at high temperature and low thermal conductivity. For Inconel alloy, EDM is a preferred material removal process due to
The results provide fundamental knowledge of the grinding material removal process, which helps to improve grinding performance and quality. Cubic boron nitride grits of 40/50 mesh size were used to perform scratch tests on the alloy Inconel 718.
alloy (Inconel 718) with a Silicon carbide grinding wheel. The experiments have been conducted using Taguchi's experimental design technique. The cutting parameters such as grit size, depth ... purpose, the first step in the optimization process is to determine the S/N ratio for all the experimental runs by using the Taguchi methodology. ...
Oct 28, 2018· Finally, the grinding wheel wear, power consumption, and surface integrity are measured for both samples. Furthermore, the correlation of the material properties with the grindability is analyzed, which will shed light on the process optimization for high-quality SLM Inconel 718 grinding for its reliable service in practical applications.
The results provide fundamental knowledge of the grinding material removal process, which helps to improve grinding performance and quality. Cubic boron nitride grits of 40/50 mesh size were used to perform scratch tests on the alloy Inconel 718. The concepts of material pile-up ratio and actual material removal area were introduced to measure ...
Jun 24, 2019· In this paper, Inconel 718, a material that has extensive use in aircraft engines, is considered for experimental work to obtain the optimum combination of process parameters. Response surface methodology is used to optimize the process parameters, in particular feed rate, step depth, and lubricant viscosity.
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Jun 06, 2018· Nickel-based materials such as Inconel 718 and Waspaloy are primarily used for aero components. They can be annealed, solution heat treated, aged, rolled, forged, or cast. These materials have a higher dynamic shear strength which means they require higher cutting forces and have poor thermal conductivity where the heat from the cut goes into ...
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