Management of Re-rolling mills in SME sector...

Management of Re-rolling mills in SME sector Re-rolling mills in SME sector play a very important role towards the steel economy of the country. There are around 1800 re-rolling mills in small and medium enterprise (SME) sector in India. The rolling capacities of these mills are mostly in the range of 8,000 tons per year to 80,000 tons per year. These mills are crucial to the national economy since they are not only making available a large amount of finished steel in the market but many of these mills are also converting a substantial amount of steel scrap into finished steel thus serving the overall cause of steel recycling. Since the conversion of steel scrap is taking place without its melting in these re-rolling mills, it is helping towards the cause of the conservation of raw materials and energy as well as saving the generation of green-house gases. The technology adoption level of these mills is rather low and many of these mills operate with technologies which are 50 years to 60 years old. Most of these re-rolling mills do not have practices to keep systematic data in different areas of their functioning. These mills operate at low level of productivities and high level of energy consumptions. They have some special problems and challenges. Re-rolling mills in SME sector practically do not have even simple control systems. They work with a low degree of standardization. The work force is having high experience in limited area. There is increased focus on the experience of the people and there is practically no effort to enhance the knowledge of the work force. The approach to all the issues is informal leading to decisions which does not often bring improvements in the working of the mills. Re-rolling mills...

Product Quality and Manufacturing Technology Management...

Product Quality and Manufacturing Technology Management Manufacturing technology is defined as the act or process (or connected series of acts or processes) of actually and physically making a specified product from its material constituents. It is central to a production system which produces the specified product as required by the customer. Manufacturing process takes place when some input occurs in a production system and it appears as an output and provides result in the form of a product. On the other hand, manufacturing technology is that knowledge which is used in the production system during the process of manufacturing. Manufacturing technology is an interacting combination at any level of complexity, of people, materials, tools, machines, automation, software facilities, and procedures designed to work together for the common purpose of producing product of that quality which is needed by the customer. It provides the tools which enable production of the specified products.  These tools of the manufacturing technology magnify the efforts of individual workers and turn raw materials at the affordable cost into the quality products required by the customers The objectives of the manufacturing technology (Fig 1) are namely (i) low cost operation, (ii) high performance, (iii) consistent product quality, (iv) high productivity level, (v) high yield, and (vi) product customization. Fig 1 Objectives of manufacturing technologies There is a close link between the quality of the product and the manufacturing technology. An appropriate manufacturing technology is normally needed to produce product of quality since the technology is the principal quality determinant. In fact, manufacturing technology is to have capabilities to produce products of predictable quality at the productivity levels which keeps the product production cost under control. The technology needs not be unique, but it is to be mature and is to have innovative...