Evaluation of Material Removal Rate and Surface Roughness of Ti6al4v in Wire EDM Process using Response Surface Methodology

2015 ◽  
Vol 29 (4) ◽  
pp. 209-216
Author(s):  
M.Raja Roy ◽  
◽  
N Ramanaiah ◽  
B.S.K Sundara Siva Rao
Keyword(s):  
Surface Roughness ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Material Removal Rate ◽  
Material Removal ◽  
Removal Rate ◽  
Wire Edm ◽  
Edm Process

scholarly journals Intelligent optimization of wire-EDM parameters for surface roughness and material removal rate while machining WC-Co composite

2021 ◽  
Vol 49 (3) ◽  
pp. 756-763
Author(s):  
Kapil Gupta
Keyword(s):  
Surface Roughness ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Process Parameters ◽  
Material Removal Rate ◽  
Material Removal ◽  
Removal Rate ◽  
Hybrid Technique ◽  
Wire Edm ◽  
Abc Algorithm

This work presents the wire-EDM of WC-Co composite and optimization of process parameters using an integrated technique of response surface methodology (RSM), Vise Kriterijumska Optimizacija Kompromisno Resenje (VIKOR) and artificial bee colony (ABC) algorithm to obtain the best set of machinability indicators. Wire feed (WF), servo voltage (SV), pulse off-time (Pon) and pulse on-time (Poff) are the variable process parameters, whereas root mean square roughness (Rq), average surface roughness (Ra) and material removal rate (MRR) are the machinability indicators considered in the present work. A total of twenty nine experiments have been conducted based on Box Behnken design (BBD) technique of response surface methodology. VIKOR has been used for normalization of responses and followed by solving empirical models using ABC algorithm to obtain optimized process parameters setting. WF-12 m/min, SV-65V, Pon-116 µs, Poff-20 µs are the optimum wire-EDM parameters obtained by intelligent RSM-VIKOR-ABC technique that produced best values of Ra-4.51 µm, Rq-5.64 µm, MRR-0.061 mm3 /min simultaneously. The validation test confirmed an improvement up to 15% in the response characteristics which proved the effectiveness of this novel hybrid technique for optimization. The optimum parameter setting is for ready industrial reference to attain best surface quality and process productivity for WC-Co composite machining by wire-EDM.

Parameters Optimization of the Ultrasonic External Cylindrical Lapping Process for Nano ZTA Engineering Ceramics Using Response Surface Methodology

2007 ◽  
Vol 364-366 ◽  
pp. 733-738
Author(s):  
Feng Jiao ◽  
Bo Zhao ◽  
Chuan Shao Liu ◽  
Xun Sheng Zhu
Keyword(s):  
Surface Roughness ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Material Removal Rate ◽  
Material Removal ◽  
Removal Rate ◽  
Parameters Optimization ◽  
Response Models ◽  
Engineering Ceramics ◽  
Surface Response

Aimed at the precision machining characteristics of nano ZTA engineering ceramics external cylindrical components, ultrasonic aided lapping experiments were carried out adopting inhouse developed ultrasonic external cylindrical lapping device with solid abrasive material. To obtain minimum surface roughness with constraint of the material removal rate, response surface methodology (RSM) was adopted to analyze the experimental data, and suitable experiment design was chosen to fit the response surface in this research. Second-order surface response models of surface roughness and material removal rate were developed respectively, and the influence laws of lapping parameters on surface roughness and material removal rate were clarified according to the built models. Finally, parameters optimization of the ultrasonic external cylindrical lapping process for nano ZTA engineering ceramics was realized using surface response methodology.

Multi-Response Optimization of CNC WEDM Process Parameters for Machining Titanium Alloy Ti 6AI-4V Using Response Surface Methodology (RSM)

2014 ◽  
Vol 541-542 ◽  
pp. 354-358 ◽  
Author(s):  
C. Nandakumar ◽  
B. Mohan
Keyword(s):  
Surface Roughness ◽  
Response Surface Methodology ◽  
Titanium Alloy ◽  
Response Surface ◽  
Process Parameters ◽  
Material Removal Rate ◽  
Material Removal ◽  
Removal Rate ◽  
Response Optimization ◽  
Wedm Process

This research deals with the multi-response optimization of CNC WEDM process parameters for machining titanium alloy Ti 6AI-4V using Response Surface Methodology (RSM) to achieve higher Material Removal Rate (MRR) and lower surface roughness (Ra). The process parameters of CNC WEDM namely pulse-on time (TON), pulse-off time (TOFF) and wire feed rate (WF) were optimized to study the responses in terms of material removal rate and surface roughness. The surface plot and the contour plots were generated between the process parameters and the responses using MINITAB software. The results show that the Response surface methodology (RSM) is a powerful tool for providing experimental diagrams and statistical-mathematical models to perform the experiments appropriately and economically.

scholarly journals OPTIMASI KINERJA PROSES FINE SODICK A 350 SS WIRE-EDM PADA PEMOTONGAN BAJA SKD 11

2019 ◽  
Vol 1 (01) ◽  
pp. 40
Author(s):  
Yon Haryono
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Material Removal Rate ◽  
Surface Integrity ◽  
Material Removal ◽  
Removal Rate ◽  
Inequality Constraint ◽  
Wire Edm ◽  
Dual Response

Performansi yang diharapkan dari proses pemesinan Wire-EDM adalah laju pembuangan material (material removal rate) yang tinggi dan kualitas permukaan (surface integrity) yang baik. Akan tetapi kondisi tersebut  tidak mudah untuk dilakukan karena banyaknya variabel yang mempengaruhi kinerja proses pemesinan Wire-EDM.             Salah satu upaya untuk mencari solusi dari problem diatas adalah dengan menentukan hubungan antara kinerja proses dengan variabel proses, kemudian dicari kombinasi level variabel proses yang dapat memberikan performansi proses optimum. Penelitian ini dilakukan untuk mengembangkan model dari proses Wire-EDM dengan mengadopsi Response Surface Methodology (RSM). Durasi pulsa, kuat arus, tegangan mekanik  kawat dan kecepatan kawat dipilih sebagai variabel proses, sedangkan laju pembuangan material/material removal rate  (MRR) dan kekasaran permukaan sebagai respon. Proses optimasi dual response dilakukan dengan bantuan paket program aplikasi Quantitative System untuk kasus inequality constraint.             Hasil yang didapatkan menunjukakan bahwa variabel proses yang dipilih memberikan pengaruh yang signifikan terhadap respon. Laju pembuangan material dan kekasaran permukaan mancapai kondisi optimal secara bersamaan pada kombinasi durasi pulsa 3.83  ms,  kuat arus 2,74 amper, tegangan mekanik kawat 998,93 gr/mm2, dan kecepatan kawat 1419,29 cm/min. Pada seting variabel proses seperti tersebut diatas dihasilkan MRR sebesar 11,48 mm3/min dan kekasaran permukaan 1,86 mm.

scholarly journals Material Removal Rate, Electrode Wear Rate, and Surface Roughness Evaluation in Die Sinking EDM with Hollow Tool through Response Surface Methodology

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Teepu Sultan ◽  
Anish Kumar ◽  
Rahul Dev Gupta
Keyword(s):  
Surface Roughness ◽  
Response Surface Methodology ◽  
Wear Rate ◽  
Response Surface ◽  
Material Removal Rate ◽  
Material Removal ◽  
Removal Rate ◽  
Electrode Wear ◽  
Electrode Wear Rate ◽  
Pulse On Time

Electrical discharge machining is one of the earliest nontraditional machining, extensively used in industry for processing of parts having unusual profiles with reasonable precision. In the present work, an attempt has been made to model material removal rate, electrode wear rate, and surface roughness through response surface methodology in a die sinking EDM process. The optimization was performed in two steps using one factor at a time for preliminary evaluation and a Box-Behnken design involving three variables with three levels for determination of the critical experimental conditions. Pulse on time, pulse off time, and peak current were changed during the tests, while a copper electrode having tubular cross section was employed to machine through holes on EN 353 steel alloy workpiece. The results of analysis of variance indicated that the proposed mathematical models obtained can adequately describe the performances within the limits of factors being studied. The experimental and predicted values were in a good agreement. Surface topography is revealed with the help of scanning electron microscope micrographs.

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