Ultrasonic machining and its modelling and analysis 2. Ultrasonic vibration machining can only be used on materials with a hardness value of at least 45. Ultrasonic machining introduction ultrasonic machining is a. Introduction to nontraditional machining iit kanpur. The introduction of abrasives to the fluid jet enhances the. Singh, balbir singh modern machining processes presents unconventional machining methods which are gradually commercial acceptance. Instructional objectives i manufacturing process ii. It also includes micronanofinishing processes viz, abrasive flow finishing, magnetic abrasive finishing, etc. It is also known as ultrasonic impact grinding is an operation that involves a vibrating tool fluctuating the ultrasonic frequencies in order to remove the material from the work piece. Working principles equipment used process parameters. Generally, an ebook can be downloaded in five minutes or less. Nptel, online courses and certification, learn for free. Ultrasonic, abrasive jet and abrasive water jet machining lecture 2.
References module 9 non conventional machining iit kharagpur. Advanced machining processes video course course outline there is a need for machine tools and processes which can accurately and easily machine the most difficultto machine. Similarly, abrasive jet machining ajm, ultrasonic machining usm, water jet and abrasive water jet machining wjm and awjm, electrodischarge machining edm are some of the non traditional machining ntm processes. Learn for free, pay a small fee for exam and get a certificate. Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. These methods form a group of processes which removes excess material by. I high surface nish nanolevel ra value i miniaturization of products examples. All aspects of mechanical, electrochemical and thermal processes are comprehensively covered. I high mrr i high production rate while processing di cult to machine. Here are some disadvantages of ultrasonic machining. The process is limited to the machined surface of a small size. Particularly suited for very hard andorbrittle materials such asgraphite, glass, carbide, and ceramics. Paul,department of mechanical engineering, iit kharagpur. Module 3 selection of manufacturing processes nptel.
Basic working principle, configuration, specification. Ultrasonic machining machines are available in the power output range of 40 w to. Ultrasonic machining, water jet machining, abrasive water jet machining. On this channel you can get education and knowledge for general issues and topics. Examples of conventional machining processes are turning, boring, milling, shaping, broaching, slotting, grinding etc. Particularly suited for very hard andorbrittle materials such asgraphite, glass, carbide, and. Course outline the course covers the details of the advanced machining theory and practices, advanced machining processes, advanced metal forming processes, advanced welding processes and advanced foundry processes. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. Lecture series on manufacturing processes ii by prof. Nptel provides elearning through online web and video courses various streams. Ultrasonic machining introduction ultrasonic machining is a nontraditionalmechanical means of uniform stock materialremoval processit is applicable to both conductive andnonconductive materials. Ultrasonic machining is a mechanical type nontraditional machining process.
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