This paper presents the mechanical design and experimental characterization of a 2-DOF serial flexurebased micropositioning table. The cascade mechanical structure is proposed to implement planar motions of the moving platform. In order to increase the stroke of the moving platform, a lever mechanism is designed to amplify the displacement of the piezoelectric actuator. The finite element metho...

This paper demonstrates the effectiveness of optimizing multiple characteristics of electrical discharge machining (EDM) of Inconel 718 using copper electrodes having different shapes via Taguchi method-based Grey analysis. The modified algorithm adopted here is used successfully for both detraining the optimum settings of machining parameters and for combining multiple quality characteristic i...

Preliminary notes This paper presents the possibilities of applying a new method of programming based on STEP-NC standards, which was developed as an alternative to the G code. The possibilities of application in the field of machining simulation and verification of the program before machining on the wire electrical discharge machine are discussed. The paper shows the possible methodology for ...

The objective of this paper is to determine the optimal setting of the process parameters on the electro-discharge machining (EDM) machine while machining AISI H13 tool steel. The parameters considered are pulse current, pulse-on-time, pulse-off-time and gap voltage ; whereas the responses are Tool wear ratio (TWR) and material removal rate (MRR). The optimal setting of the parameters are deter...

Nowadays, Electrical Discharge Machining (EDM) has become one of the most extensively used non-traditional material removal process. Its unique feature of using thermal energy to machine hard to machine electrically conductive materials is its distinctive advantage in the manufacturing of moulds, dies and aerospace components. Howevere, EDM is a costly process and hence proper selection of its ...

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. ...

Small-size cutting inserts for assembly cutters are widely used to manufacture a variety of parts the aerospace, automotive and mechanical engineering industries. Due their high hardness chemical stability, Al2O3-TiC ceramics significantly outperform hard alloys in machining heat-resistant difficult-to-machine materials. However, grinding on CNC machines, most common technology manufacturing ce...