1. MODIFICATION OF ORBITAL TIG WELDING PROJECT GUIDE Mrs. S. GAJALAKSHMI M.E., SUBMITTED BY B.SURESH

2. COMPANY PROFILE BHEL A CORPORATE GIANTBharat Heavy Electricals Limited (BHEL), established in 1953, is one of leading power generation equipment manufacturers in the world. BHEL has 14 manufacturing units, 13 Regional Operation Divisions and more than hundred "service- at-sites" facilities spread all over India. BHEL has also bagged export orders from 40 countries around the world. BHEL, TIRUCHIRAPALLI BHEL, TIRUCHIRAPALLI  The plant achieved its full annual capacity to design manufacture and supply high pressure boiler equipment design manufacture and supply high pressure boiler equipmenthigh pressure boiler equipmenthigh pressure boiler equipment upto 4000 MW in 1984 with boiler unit ratings upto 500 MW. upto 4000 MW in 1984 with boiler unit ratings upto 500 MW.

3. ABSTRACTS The project is about redesigning the welding machine hanger from stationary to rotary cantilever type. The main advantage behind this are reduces the movement of the existing one during loading and unloading operations. Overall production time is saved.

4. STATEMENT ABOUT THE PROBLEM In order to over come the difficulties in circular job of arc welding process. In arc welding slags and non uniform welding paths are occurs. Blow holes that are caused because of vertical welding process. Difficulties to weld in small corners.

5. REASON FOR CHOOSING THIS TOPIC Welding is mostly applied in boiler accessories and boiler related plants. Reduce the production time.

6. OBJECTIVE AND SCOPE OF THE PROJECT Improve the quality of the process. Reduce the blow holes. It increases the productivity It reduce the worker’s load

7. METHODOLOGY Design of welding machine hanger to rotate about 360 degree. Ball bearing attachment for cantilever rotary movement. Selection of inert gas. Working process.

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