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Construction Of Welding Machine
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No Description
1 Fuse plug
2 Main cable
3 Current tapping
4 Common tapping
5 Handle
6 Ground cable
7 Welding cable
8 Welding tong
9 Ground Clamp
Fig 3.1 shows the assembling diagram of a welding machine and its associated components. This machine is designed to operate on 240v – 50Hz supply and since it is designed for industrial purpose, it is made to be at no load rating power of 8kvA with current between 45A to 180A.
Discharge is formed when an electric current passes between two electrodes separated by a short distance from each other by bringing the metals to be welded and the electrode together, excitation energy is established. This result in a continuous flow of molecular structure of the metals due to disintegration of the existing bond. This result in molten metal which allowed to cool, coalesced together and produce a joint of weld.
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ABSRACT - [ Total Page(s): 1 ]ABSTRACT COMING SOON ... Continue reading---
CHAPTER ONE - [ Total Page(s): 2 ]CHAPTER ONE1.0 INTRODUCTIONIn the past with the necessary of metals it always seems impossible to join two metals together with grooving riveting, this idea leads to alternative of finding a lasting solution to the problem. This brought about the idea of a welding machine with a well laminated core and coil wound together to form a high rated transformer which is immersed in a can of oil.Welding is the most economical and efficient way to join metals permanently. It is the only way of join ... Continue reading---
CHAPTER TWO - [ Total Page(s): 3 ]ii. OXIDIZING FLAMEOxidizing welding flame are produced hen slightly more than one volume of oxygen is mixed with one volume of acetylene. To obtained this type of flame, the flow of oxygen is then increased until the inner cone is shortened to about one tenth of it original length when the flame is properly adjusted, the inner cone is pointed and slightly purple. An oxidizing flame can also be recognized by it distinct hissing sound. The temperature of this flame is approximately 6300oF ( ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 4 ]Where;K = constant (Boltzman constant in joules / kelvin)A= 200m x 4 = 800mmT2 = 3500CT1 = 3150CX = 50mmQ = k x 800mm 350 – 3150C 50mm Where K =8.617 x 10-5 J/kQ = 8.673 x 10-5 x 800mm (135 50mmQ =62044.46 J/K 4.1 WINDING DESIGNThe basic of winding is to have number of turns being wounded around an appropriate point of the core. Winding design in transformer construction must be done perfectly and accura ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 10 ]Now let assume a load having a power factor such that the secondary current is in phase with E2 the primary current must now have two component.1. I1 to maintain the useful flux2. I2 to neutralize the demagnetizing effect of the secondary current.Since the flux of each limb is link only with the winding by which it is produced, it is referred to as leakage flux and its responsible for reducing an e.m.f. of self inductance in the winding with which it is linked. The reluctance o ... Continue reading---
CHAPTER SIX - [ Total Page(s): 1 ]CHAPTER SIX6.0. CONCLUSION AND RECOMMENDATION6.1 CONCLUSION The project is a form of providing student with appreciable skills p4actically designed to expose or equip them with real working operation of machine and how they are being constructed and a better understanding of one’s own career goals and for the progress of the nation.The project seemed easy and simple but later on turn to be useful and interesting project for Engineering students. With all the proble ... Continue reading---
REFRENCES - [ Total Page(s): 1 ]REFERENCESFlood CR (1981) “Fabrication of welding and joining process†1st Edition, Butterworth and Co publisher limited London, P.P 21 – 25, 28 36- 37 and 39.Google: http://weldguru.com/welding-flamesFlood CR and parkin N. (1974) “craft practice “ 1st Edition pergamon press limited, New YorkDavies A.C (1984) “Welding science and technology†8th edition Cambridge Universities press. London Pg-42B.L. and A.K.Therage (1994 Textbook of Electri ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]ABSTRACT COMING SOON ... Continue reading---