Monday 20 February 2012

INTRODUCTION    

             Since the beginning of civilization , man has been continuously engaged in converting the natural resources into useful products. The entire discipline of engineering is mainly concerned with this. Of all the sub disciplines of engineering,manufacturing is perhaps most important because it involves the conversion of a raw material into a final product.
             The first industrial revolution was a major cornerstone in human history in that it set in motion the battle for abundance.The world today is totally dependent on science & technology and the nations are classified now according to their degree of industrialization. Since manufacturing plays a key role in extracting wealth from the mother Earth, it is quite easy to realize the importance of the subject which deals with this activity.
            there are several types of manufacturing processes. The major processes a component undergoes before being converted into a final product are:
  1. casting
  2. primary and secondary forming
  3. machining and
  4. joining,assembly and finishing.