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What is mechanical engineering? What a mechanical engineering does? How did the mechanical engineering swap via a while? what's the way forward for mechanical engineering? This e-book solutions those questions in a lucid demeanour. It additionally offers a short chronological heritage of landmark occasions and solutions questions corresponding to: while was once steam engine invented? the place used to be first CNC computer built? while did the period of additive production commence? while did the wedding of mechanical and electronics supply start to self-discipline of mechatronics? This ebook informs and create curiosity on mechanical engineering within the basic public and specific in scholars. It additionally is helping to sensitize the engineering fraternity concerning the ancient elements of engineering. while, it presents a standard feel wisdom of mechanical engineering in a convenient manner.
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Extra resources for A Brief History of Mechanical Engineering
It can be operated automatically to produce components in large quantities, thus improving productivity. CNC technology has paved the way for computer-aided design (CAD) and computer-aided manufacturing (CAM) in the 1960s. CNC revolution accelerated in the 1970s and the 1980s with development of a number of CNC companies in the USA and Germany followed by Japan. Manufacturing companies nowadays use CNC machines for producing better products as the competition have become very stiff. The latest CNC machines have microprocessor-based control system with feedback for higher efﬁciency.
The machine control unit was not flexible and could not adapt to changes. With the advancements in the ﬁeld of electronics, the disadvantages of the NC machines were removed over time. The new inventions of electronics, viz. miniature electronic tubes, solid-state circuits, and integrated circuits, were gradually used in NC machines making it better, smaller, and more reliable. Introduction of the computers has taken NC technology to a new height, and it came to be known as the CNC technology. The control units with punched cards in the NC machines were replaced by the computers in the CNC machines.
NC machines were improved rapidly after the use of computers as the controlling unit and renamed as CNC machines. The CNC technology is widely used in machining processes such as turning, drilling, milling, and shaping. Once the complete program is fed and activated in the CNC controller, the machine automatically performs the machining operations to achieve the ﬁnal component. The CNC controller directs the machine tool to perform various operations as per the program of instructions. The history of NC technology dates back to the early part of the twentieth century.