scholarly journals Penerapan Metode Taguchi Dalam Optimasi Parameter Pada Proses Electrical Discharge Machining (EDM)

2019 ◽  
Vol 12 (1) ◽  
pp. 7-12
Author(s):  
Farizi Rachman Rachman ◽  
Tri Andi Setiawan ◽  
Bayu Wiro Karuniawan ◽  
Risma Aris Maya
Keyword(s):  
Taguchi Method ◽  
Manufacturing Industry ◽  
Electrical Discharge Machining ◽  
Machining Process ◽  
Level 3 ◽  
Level 1 ◽  
Electrical Conductors ◽  
Off Time ◽  
Conventional Machining

EDM is a non-conventional machining process with feeding material carried out by electric spark (spark) through a gap between the electrode and the workpiece containing liquid in the electric. The usefulness of the liquid is as a medium for rinsing the remnants of erosion material, electrodes and workpieces as electrical conductors. In the manufacturing industry, EDM is widely used for the manufacture of products that demand the quality of surface roughness resulting from smooth cutting and high precision. The Taguchi method is one method in experimental design that can be used to control product quality. This study considers 3 parameters, namely gap voltage, on time, and off time on the SKD-11 material as one of the 13 mm thick dies / dies. This study uses the Taguchi method to obtain optimal parameters with smaller criteria better. Based on the table above the highest voltage parameter gap at level 1 which is 30 volts, the parameters at the most agreed time at level 3 are 120 μs and the most difficult off time parameter to be reached at level 1 is 20 μs to roughness.   EDM adalah suatu proses permesinan yang bersifat non konvensional dengan pemakanan material benda kerja yang dilakukan oleh loncatan bunga api listrik (spark) melalui celah antara elektroda dan benda kerja yang berisi cairan di elektrik. Kegunaan cairan tersebut adalah sebagai medium untuk flushing sisa-sisa partikel material hasil erosi,pendinginan elektroda dan benda kerja serta sebagai konduktor listrik. Dalam industri manufaktur, EDM banyak digunakan untuk pembuatan produk-produk yang menuntut kualitas kekasaran permukaan hasil pemotongan yang halus dan kepresisian yang tinggi. Metode Taguchi merupakan salah satu metode dalam desain eksperimen yang dapat digunakan untuk mengendalikan kualitas produk. Penelitian ini mempertimbangkan 3 parameter yaitu gap voltage, on time, dan off time pada pengerjaan material SKD-11 sebagai salah satu bahan pembuatan cetakan/dies dengan tebal 13 mm. Penelitian ini menggunakan metode Taguchi untuk mendapatkan parameter yang optimum dengan kriteria smaller is better. Berdasarkan tabel diatas parameter gap voltage paling berpengaruh pada level 1 yaitu 30 volt, parameter on time paling berpengaruh pada level 3 yaitu 120 µs dan parameter off time paling berpengaruh pada level 1 yaitu 20 µs terhadap kekasaran.    

The Effect of EDM Die-Sinking Parameters on Material Characteristic for Aluminum Composite

2014 ◽  
Vol 699 ◽  
pp. 26-31 ◽  
Author(s):  
Mohd Amran Ali ◽  
Laily Suraya ◽  
Nor Atiqah Jaffar Sidek ◽  
Nur Izan Syahriah Hussein ◽  
Mohd Razali Muhamad ◽  
...  
Keyword(s):  
Taguchi Method ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
Machining Process ◽  
Electrode Wear ◽  
Machining Parameters ◽  
Aluminum Composite ◽  
Pulse On Time ◽  
Pulse Off Time ◽  
Off Time

The machining ability of Electrical Discharge Machining (EDM) die-sinking on material characteristics of LM6 (Al-Sil2) is studied. This is due to the machining process on sharp edge, pocket, deep slot and micro hole cannot be performed by milling and turning machine. The objective of this paper is to determine the relationship between the machining parameters such as pulse on time, pulse off time, peak current and voltage on material removal rate (MRR) that are electrode wear rate (EWR) and surface roughness (Ra). Graphite tool of diameter 15mm was chosen as an electrode. Taguchi method is used as analysis technique to develop experimental matrix that is used to optimize the MRR, EWR and Ra. The analysis was done by using the Minitab software version 16. It is found that the current and pulse off time are significantly effected the MRR, EWR and Ra while pulse on time and voltage are less significant factors that affected the responses. From the Taguchi method, the best setting of optimum value was obtained. Thus, it shows that Taguchi method is the best quality tools that can be applied for production.

Optimization of Multiresponse Performance Measure in Slider-Rocker Compliant Mechanism Using Fuzzy-Taguchi Method

2013 ◽  
Vol 683 ◽  
pp. 708-711 ◽  
Author(s):  
Thanh Phong Dao ◽  
Shyh Chour Huang
Keyword(s):  
Taguchi Method ◽  
Compliant Mechanisms ◽  
Compliant Mechanism ◽  
Angular Displacement ◽  
Performance Measure ◽  
Multi Objective Optimization ◽  
Level 3 ◽  
Level 1 ◽  
Flexible Segment ◽  
Input Torque

This paper focuses on the application of fuzzy logic-Taguchi method for multi-objective optimization of the flexible segment in slider-rocker compliant mechanisms. The input parameters such as input torque and crank angular are optimized with considerations of the multiple performance measures as angular displacement and stress of the flexible segment. The results found that the input torque at level 3 of 60 Nm and crank angular at level 1 of 70 degrees are favorable parameters for compliant flapper mechanism. Based on analysis of variance (ANOVA), the results revealed that input crank angular is the most significant with hightest contribution of 48%.

Study on Kerf Width in Wire-EDM Based on Taguchi Method

2011 ◽  
Vol 110-116 ◽  
pp. 1808-1816 ◽  
Author(s):  
Kumar Swain Abinash ◽  
Ray Siddhartha ◽  
Nirmal Kumar Mandal
Keyword(s):  
Taguchi Method ◽  
Tungsten Carbide ◽  
Electrical Discharge Machining ◽  
Cutting Parameters ◽  
Kerf Width ◽  
Machining Parameters ◽  
Wire Edm ◽  
Machining Performance ◽  
Off Time ◽  
Significant Factors

— This paper presents an experimental investigation on the influence of cutting parameters of wire cut Electrical Discharge Machining (Wire-EDM) during the machining of tungsten carbide and optimization of machining parameters on kerf width. The investigation was conducted by considering the varying parameter of average machining voltage, spark on time, spark off time, and capacitance with Taguchi method as optimizing technique. L9orthogonal array has been used to determine the S/N ratio, analysis of variance and ‘F’ test values for indicating most significant parameter affecting the machining performance. The significant factors average machining voltage for kerf width. Spark on time, spark off time and capacitance are obtained as insignificant parameters. Further verification of improvements in the quality characteristics has been made through conformation test to the chosen initial parameter setting. The optimal combination of WEDM parameters satisfies the real requirement of quality machining of tungsten carbide.

Influence of Process Parameters on Characteristics of Electrical Discharge Machining of PH17-4 Stainless Steel

2015 ◽  
Vol 14 (03) ◽  
pp. 189-202 ◽  
Author(s):  
V. Vikram Reddy ◽  
P. Madar Valli ◽  
A. Kumar ◽  
Ch. Sridhar Reddy
Keyword(s):  
Material Removal Rate ◽  
Electrical Discharge ◽  
Material Removal ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
Surface Hardness ◽  
Machining Process ◽  
Pulse On Time ◽  
Pulse Off Time ◽  
Off Time

In the present work, an investigation has been made into the electrical discharge machining process during machining of precipitation hardening stainless steel PH17-4. Taguchi method is used to formulate the experimental layout, to analyze the effect of each process parameter on machining characteristics and to predict the optimal choice for each electrical discharge machining process parameters namely, peak current, pulse on time and pulse off time that give up optimal process performance characteristics such as material removal rate, surface roughness, tool wear rate and surface hardness. To identify the significance of parameters on measured response, the analysis of variance has been done. It is found that parameters peak current and pulse on time have the significant affect on material removal rate, surface roughness, tool wear rate and surface hardness. However, parameter pulse off time has significant affect on material removal rate. Confirmation tests are conducted at their respective optimum parametric settings to verify the predicted optimal values of performance characteristics.

scholarly journals Literature Review on Fingerprint Level 1 and Level 2 Features Enhancement to Improve Quality of Image

2017 ◽  
pp. 8-19 ◽  
Author(s):  
Krishna Prasad K. ◽  
P. S. Aithal
Keyword(s):  
Recognition System ◽  
Fingerprint Recognition ◽  
Human Beings ◽  
Global Features ◽  
Basic Premise ◽  
Level 3 ◽  
Level 1 ◽  
The One ◽  
Level 2

Biometrics is the one most popular property in human distinguishing proof based on physical or behavioral features. The different physiological characteristics are Fingerprint, DNA, Face, hand, retina, ear features, and odor, where as behavioral characteristics or features are typing rhythm, gait, gesture, and voice with the basic premise that all are unique and all human beings are identified by these intrinsic traits. In the physiological traits, Fingerprint is most commonly utilized the biometric feature in diverse fields for identification and verification purpose. Fingerprint features can be separated into three noteworthy classifications in view of the granularity at which they are removed as level 1, level 2, and level 3 features. Level 1 feature contains macro details, which are easily extractable and include orientation filed, ridge frequency filed and pattern configuration. Only these global features or Level 1 features are not sufficient to uniquely identify or recognize, but if these features are used along with level 2 or level 3 features, that can make the fingerprint recognition system more robust and secure. Level1 features are used for image enhancement and orientation purpose. In this paper, we made a survey of existing literature on Level 1 features and try to analyze other researcher's contribution to this field.

scholarly journals Increased Knowledge about Floral Preservatives Influences Consumers’ Perception of the Quality and Value of a Floral Arrangement Purchase

2013 ◽  
Vol 23 (2) ◽  
pp. 142-148
Author(s):  
Morgan M. Jenkins ◽  
Kimberly A. Williams ◽  
Laura A. Brannon
Keyword(s):  
Generation Y ◽  
Purchase Intention ◽  
Intent To Purchase ◽  
Intention To Purchase ◽  
Level 3 ◽  
Perception Of Quality ◽  
Level 1 ◽  
Four Levels ◽  
Level 2

This research examines whether knowledge about floral preservatives increases consumers’ perception of quality, purchase intention, and price of a floral arrangement. A survey was administered to 222 participants at two locations in Manhattan, KS. Seventy-three percent of respondents fell within Generation Y (18 to 30 years old). The survey instrument presented four levels of presentation of a floral arrangement that were associated with increasing knowledge about the use of floral preservatives on consumers’ perceptions about the quality and price of that arrangement, as follows: Level 1 showed a photo of a floral arrangement without preservatives; Level 2 showed the same photo of a floral arrangement with a small, unlabeled packet of preservatives; Level 3 showed the same photo of a floral arrangement with a large, clearly labeled packet of preservatives; and Level 4 showed the same photos as Level 3 but was presented after a 191-word message describing the three functions of floral preservatives. Participants of the survey rated the quality of a floral arrangement higher from Level 2 (presence of floral preservatives not explicit) to Level 3 (presence of floral preservatives explicit) and from Level 3 to Level 4 (after reading a message about floral preservatives’ function and effectiveness). Their intent to purchase the floral arrangement generally increased with each level of presentation. Females indicated intention to purchase flowers more frequently than males. Participants increased the price that they were willing to pay for the floral arrangement at each level of presentation, starting at $25.46 at Level 1 (no floral preservatives use indicated) to $29.19 at Level 4. Participants were more knowledgeable about the benefits of floral preservatives and believed that floral preservatives increased the value of floral arrangements after reading a message describing their function and effectiveness more so than before reading a message. The younger the respondent, the more willing they were to pay more for floral arrangements with floral preservatives. As consumers become more aware of the use of floral preservatives and more knowledgeable about how and why they are effective, they attribute higher quality to floral arrangements with preservatives, they are willing to pay more for arrangements with preservatives, and their purchase intention frequency increases. Florists should always use preservatives in their processing and construction of fresh floral arrangements, consider providing a message about the function and effectiveness of floral preservatives to their customers, and then market their use of these materials.

scholarly journals Surface Roughness Prediction for Steel 304 In Edm Using Response Graph Modeling

2018 ◽  
Vol 14 (4) ◽  
pp. 115-124 ◽  
Author(s):  
Shukry H. Aghdeab ◽  
Nareen Hafidh Obaeed ◽  
Marwa Qasim Ibraheem
Keyword(s):  
Surface Roughness ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Machining Process ◽  
Applied Current ◽  
Graph Modeling ◽  
Pulse On Time ◽  
Pulse Off Time ◽  
The Impact ◽  
Off Time

Electrical Discharge Machining (EDM) is a non-traditional cutting technique for metals removing which is relied upon the basic fact that negligible tool force is produced during the machining process. Also, electrical discharge machining is used in manufacturing very hard materials that are electrically conductive. Regarding the electrical discharge machining procedure, the most significant factor of the cutting parameter is the surface roughness (Ra). Conventional try and error method is time consuming as well as high cost. The purpose of the present research is to develop a mathematical model using response graph modeling (RGM). The impact of various parameters such as (current, pulsation on time and pulsation off time) are studied on the surface roughness in the present research. 27 samples were run by using CNC-EDM machine which used for cutting steel 304 with dielectric solution of gas oil by supplied DC current values (10, 20, and 30A). Voltage of (140V) uses to cut 1.7mm thickness of the steel and use the copper electrode. The result from this work is useful to be implemented in industry to reduce the time and cost of Ra prediction. It is observed from response table and response graph that the applied current and pulse on time have the most influence parameters of surface roughness while pulse off time has less influence parameter on it. The supreme and least surface roughness, which is achieved from all the 27 experiments is (4.02 and 2.12µm), respectively. The qualitative assessment reveals that the surface roughness increases as the applied current and pulse on time increases

scholarly journals MATHEMATICAL LITERACY’S VOCATIONAL STUDENTS BASED ON LOGICAL AND NUMERICAL REASONING

2017 ◽  
Vol 6 (2) ◽  
pp. 95
Author(s):  
Lathifatun Ni'mah ◽  
Iwan Junaedi ◽  
Scolastika Mariani
Keyword(s):  
Research Result ◽  
Logical Reasoning ◽  
Mathematical Literacy ◽  
Numerical Reasoning ◽  
Low Level ◽  
Medium Level ◽  
Level 3 ◽  
Level 1 ◽  
Research Type

The research aims is (1) to obtain learning quality of CTL model to students mathematical literacy, (2) to obtain mathematical literacy description based on logical reasoning, (3) to obtain mathematical literacy description based on numerical reasoning and (4) to obtain mathematical literacy description based on logical and numerical reasoning. The research type is descriptive study. The subject is XI AK SMK NU Lasem were taken 6 students high, medium and low logical reasoning, 6 students high, medium, and low numerical reasoning, 6 students high, medium, and low logical and numerical reasoning, 2 students high logical and medium numerical reasoning, 2 students medium logical and high numerical reasoning. The research result is (1) CTL models learning quality for mathematical literacy is good, (2) student mathematical literacy based on high logical reasoning level 4 and 5, medium level 3, low level 1 and 2, (3) student mathematical literacy based on high numerical reasoning level 5, medium level 4, low level 2 and 3, (4) student mathematical literacy based on high logical and numerical reasoning level 5, medium level 3 and 4, high logical and medium numerical reasoning or medium logical and high numerical reasoning level 4 and 5, low level 1 and 2.

scholarly journals Utility approach for multi target streamlining of process parameters in wire EDM

2018 ◽  
Vol 172 ◽  
pp. 04006
Author(s):  
A. Muniappan ◽  
M. Ajithkumar ◽  
V. Jayakumar ◽  
C. Thiagarajan ◽  
M. Sreenivasulu
Keyword(s):  
Machining Parameters ◽  
Wire Edm ◽  
Time Duration ◽  
Level 3 ◽  
Level 1 ◽  
Pulse On Time ◽  
Pulse Off Time ◽  
Off Time ◽  
Utility Approach ◽  
Wire Feed

This paper depicts the improvement of multireaction enhancement system utilizing utility technique to foresee and select the ideal setting of machining parameters in wire electro-release machining (WEDM) process. Investigations were arranged utilizing Taguchi's L27 orthogonal exhibit. A wide range of Wire EDM control variables such as pulse on time duration, pulse off time duration, servo voltage along with wire feed rate were judged for investigation. Multi reaction enhancement was performed for both cutting pace (CS) and surface unpleasantness (SR) utilizing utility idea to discover the ideal procedure parameter setting. The level of essentialness of the machining parameters for their impact on the CS and SR were controlled by utilizing investigation of fluctuation (ANOVA). In present study utility approach method used to optimize the process parameter in wire EDM of magnesium Al6061/SiC/Graphite hybrid composite with zinc covered brass wire electrode. The approach depicted here is relied upon to be profoundly useful to assembling enterprises, and furthermore different territories, for example, aviation, car and apparatus making businesses. The parameters corresponding to experiment run number 7 are pulse on time 108 units (Level 1), pulse off time 60 units (Level 3), peak current 230 units (Level 3), gap set voltage 60 units (Level 3), wire feed 3 units (Level 1) and wire tension 4 units (Level 1) are the best combination to achieve better surface roughness and cutting speed.

Surface Study in a Non-conventional (Electrical Discharge Machining) Process for Grade 6 Titanium Material

2014 ◽  
Vol 68 (1) ◽  
Author(s):  
Md. Ashikur Rahman Khan ◽  
M. M. Rahman
Keyword(s):  
Surface Roughness ◽  
Process Parameters ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Machining Process ◽  
Machined Surface ◽  
Titanium Material ◽  
Pulse On Time ◽  
Pulse Off Time ◽  
Off Time

Electrical discharge machining (EDM) produces complex shapes and permits high-precision machining of any hard or difficult-to-cut materials. The performance characteristics such as surface roughness and microstructure of the machined face are influenced by numerous parameters. The selection of parameters becomes complicated. Thus, the surface roughness (Ra) and microstructure of the machined surface in EDM on Grade 6 titanium alloy are studied is this study. The experimental work is performed using copper as electrode material. The polarity of the electrode is maintained as negative. The process parameters taken into account in this study are peak current (Ip), pulse-on time (Ton), pulse-off time (Toff), and servo-voltage (Sv). A smooth surface finish is found at low pulse current, small on-time and high off-time. The servo-voltage affects the roughness diversely however, a finish surface is found at 80 V Sv. Craters, cracks and globules of debris are appeared in the microstructure of the machined part. The size and degree of craters as well as cracks increase with increasing in energy level. Low discharge energy yields an even surface. This approach helps in selecting proper process parameters resulting in economic EDM machining. 

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