TAILIEUCHUNG - Development of a flexible high-speed EDM technology with geometrical transform optimization

(BQ) The study used Taguchi dynamic approach coupled with a proposed ideal function model to optimize a high-speed EDM process for high geometrical machining precision and accuracy. The designed tool electrode including two basic geometries of square and circle as the distinct characteristics of workpiece is employed to help develop a versatile process for wider industrial applications. To enhance the speed and stability of EDM process, large discharge current is applied and aluminum (Al) powder added into the working fluid throughout the experiments. For robust design of the process parameters, noise factors causing process variation are also included into the experimental design. | j o u r n a l o f m a t e r i a l s p r o c e s s i n g t e c h n o l o g y 2 0 3 ( 2 0 0 8 ) 355–364 journal homepage: Development of a flexible high-speed EDM technology with geometrical transform optimization Yih-fong Tzeng ∗ Department of Mechanical and Automation Engineering, National Kaohsiung First University of Science and Technology, 1 University Road, Yen-Chao, Kaohsiung 824, Taiwan a r t i c l e i n f o a b s t r a c t Article history: The study used Taguchi dynamic approach coupled with a proposed ideal function model to Received 13 May 2004 optimize a high-speed EDM process for high geometrical machining precision and accuracy. Received in revised form The designed tool electrode including two basic geometries of square and circle as the dis- 15 September 2006 tinct characteristics of workpiece is employed to help develop a versatile process for wider Accepted 18 October 2007 industrial applications. To enhance the speed and stability of EDM process, large discharge current is applied and aluminum (Al) powder added into the working fluid throughout the experiments. For robust design of the process parameters, noise factors causing process Keywords: Taguchi methods variation are also included into the experimental design. The experimental error through the analysis of variance (ANOVA) accounted for about Ideal function of the total process variation, indicating a successful experimental design and highly Electrical-discharge machining reliable results. It is noted that the energy-related factors, such as pulse duration, duty cycle, (EDM) and pulsed peak current are responsible for of the variation. Additionally, ANOVA Optimization reveals that the powder-related factors contribute slightly to the functional variation in the high-speed EDM process. Once the process parameters are optimized, the geometrical variation of the ED machined product is reduced to be of the initial .

• Cơ khí - Chế tạo máy
• Electrical discharge machining
• The EDM process
• Taguchi methods
• Ideal function
• Electrical discharge machining
• Understanding electrical discharge machining
• Various Electric Discharge Machines
• Keeping Abreast With EDM Technology
• The Machining Revolution
• A strip electrode
• The machining principle
• Surface modification
• Powder metallurgy electrodes
• Surface finish
• Electrode wear
• Inconel 718
• Response Surface Methodology
• Multi Objective Particle SwarmOptimization
• The electrical discharge machining
• The EDM processes
• Process parameters
• Stainless steel
• Optimization of machining parameters
• Fuzzy logic analysis
• Analysis of variance
• Machining precision and accuracy
• Green manufacturing
• Multi attribute decision making
• Fuzzy TOPSIS methods
• Silicon carbide
• Die sinking EDM
• Ceramic composite
• Artificial neural network
• Multi objective optimization
• Genetic algorithm
• Orthogonal array
• Statistical analyses
• Decision making model for green EDM
• Electro Discharge Machining
• Material Removal Rate
• Polynomial model
• Neuro fuzzy model
• Non conventional machining
• Journal of Science and Technology
• Analysis of surface layers of hot
• Analysis of surface layers of hot – forging die
• Hot forging die following die sinking
• Energy distribution
• Sinking electro discharge machining
• Mathematical model
• Ultrasonic vibration
• Dry EDM
• Powder additives
• EDM in water
• Multi response optimization
• Powder mixed electrical discharge machining
• Surface micro hardness
• Pulse on time
• Pulse off time
• Tool steel
• Surface roughness
• Examination of machining parameters
• EDM of tool steel
• Metal matrix composite
• Temperature stability
• Duty factor
• Titanium alloys
• Electrical process parameters
• State of art in EDM process
• Process parameters of wire cut
• 90CrSi tool steel
• Wire cut EDM
• Tool steel machining
• AISI P20 tool steel
• Fuzzy TOPSIS
• Sensitivity analysis
• The effect of multiple discharges
• Thermal model
• Roughness prediction
• Predictive model
• Discrimination of discharging pulses
• System identification