CNG vessels are used in many vehicles.  Mass production of CNG pressure vessels requires exact understanding of process effective parameters.  In this paper, the numerical analysis has been used to study the manufacturing parameters.  The entire manufacturing processes, including deep drawing, redrawing and ironing, of an aluminum liner sample of CNG pressure vessel (without spinning) have been...

Novelty Detection is an approach to classification that offers advantages over conventional techniques for monitoring high-integrity systems and manufacturing processes: it is not necessary to provide fault data to the system during development. Instead, providing a sufficiently comprehensive model of the system‟s normal behaviour has been formed, deviations from normal working conditions can b...

Necessity to use new materials, demanding functional requirements and miniaturization have led to evolution of modern manufacturing processes. Developments are taking place both in the conventional methods and unconventional methods of manufacture. High speed machining, hard machining, non conventional processes like beam, mechanical and chemical processes and additive processes like rapid prot...

a manufacturing process cannot be released to production until it has been proven to be stable. also, we cannot begin to talk about process capability until we have demonstrated stability in our process. this means that the process variation is the result of random causes only and all assignable or special causes have been removed. in complicated manufacturing processes, such as drilling proces...

This paper addresses two manufacturing processes used to produce high performance materials, namely 1) packing of ceramic powders, and 2) three dimensional printing of components. In order to understand these processes it is necessary to develop a basic understanding of the mechanics and chemistry at the microscopic scale. Here we report recent computational advances in the discrete element mod...