In recent years, advanced materials with unique metallurgical properties such as super alloys, composites and ceramics have been developed to meet the demands of extreme applications. While these materials are harder, tougher, less heat sensitive and more resistant to corrosion and fatigue, they are also difficult to machine. Advanced materials are being widely used these days not only in the a...

The conventional process of machining nitinol alloy which possesses excess strain hardening and low thermal conductivity makes a complex that leads to extensive wear on the tool inadequate surface quality. Wire-electro-discharge (WEDM) is widely accepted for this involving various input factors, namely, P (pulse-on-duration), Q (pulse-off-duration), C, (maximum-current), V (voltage). Using PSO ...

With the development of MEMS, machining demand and requirements for difficult-to-machine metal micro parts are getting higher. Microelectric discharge is an effective method to process metals. However, recast layer caused by high temperatures in microelectric affects properties machined materials. Here, we propose wire electrochemical micro-machining (WECDMM) develop a new electrolyte system, w...

In this paper, a successive discharge material removal model is proposed to predict the surface roughness of EN-GJL-250 (gray cast iron) under different parameters wire-cut electrical machining (WEDM). Firstly, finite element method (FEM) was used analogue simulate distribution temperature and flow field in WEDM single pulse process. According principle energy conservation, morphology character...

In many investigations, large number of process, or design parameters that are initially thought to affect the outcomes or outputs may not really have statistical significant influence on them. Screening experiments are used to identify the key parameters (factors) that significantly affect these outcomes. In this investigation, Plackett-Burman screening design was used to identify the factors ...

In this work, wire cut electrical discharge machining (WEDM) is used for the material removing processes; it utilized conductive parts where required to produce complicated shapes, new profiles, geometry, product development, and high-accuracy components. This process best suitable high-end applications such as aerospace, automations, automobile, medical devices. At present, most of industrial ...

Observations of the discharge gap were conducted to investigate plasma motion in reciprocated traveling wire electrical machining (RT-WEDM). It was found that a continuously slides on surface workpiece. An oscillating moving heat source is proposed better describe characteristics motions. Based an source, novel thermal-fluid coupling model by adopting level-set method formation crater and effec...

Pyrolysis represents one of the most convenient technologies for chemical transformation waste. The exposure to corrosion products and high temperatures does, however, require chemically resistant construction materials. This study was carried out analyze behavior 1.4571 (AISI 316Ti) 1.4305 303) stainless steels machined with wire electric discharge machining (WEDM) in a pyrolysis environment. ...