ABSTRACT
The emergence of advanced engineering materials, having remarkable technological characteristics in terms of high strength temperature resistance, high hardness, high wear resistance, high toughness, etc., plays an important role in modern manufacturing industries, especially in aircraft, automobile, tool and die, medical and electronics. Shaping these materials with stringent design requirements such as high precision, complex shapes and high surface quality is inevitable to put them in use. To exploit these difficultto-machine advanced engineering materials with new challenges, many advanced machining processes have been developed, but they have their own strengths and weaknesses [1]. Technological improvement of advanced machining processes can further be achieved by combining two or more different mechanisms of material removal simultaneously on the material being processed [2]. The machining processes so developed are called hybrid machining processes (HMPs). These processes are developed to exploit the potential advantages and to restrict the disadvantages associated with an
CONTENTS
15.1 Hybrid Machining Technology ............................................................... 381 15.2 The EDDG Process and Mechanism of Machining ..............................383 15.3 Variants of EDDG Process ........................................................................385 15.4 Development and Performance Study of EDDG ...................................386 15.5 Experimental Modelling and Performance Prediction of EDDG ....... 390 15.6 Thermal Modelling and Temperature Simulation of EDDG ............... 392
15.6.1 Thermal Modelling of DPSG ........................................................ 393 15.6.2 Thermal Modelling of EDPSG ..................................................... 395 15.6.3 Temperature Simulation Using the Theory of Superposition ... 397
15.7 Conclusions .................................................................................................400 References .............................................................................................................405
individual constituent process. Usually, the performance of HMP is better than the sum of the performance of constituent processes with the same parameter settings. In these processes, besides the performance from individual component processes, an additional contribution may also come from the interaction of the component processes [2].
