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Construction Of Welding Machine
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5.5 COOLING SYSTEM
There are basically two type of cooling system available to welding machine, and the type of cooling system to be used are considered in the construction stage. The two types of cooling system are:
i) Air – type cooling system
ii) Oil – type cooling system
According to this project Air type cooling system is adopted and it has some advantages over the oil type.
The advantages of Air-type cooling system to oil type cooling system are:
-The design of the machine becomes simpler because no oil jackets are required in this system.
-No danger of coolant leakage
-Minimum maintenance problem because absence of cooling pipes
-Power to weight ratio is improved in this system
-The weight of air-cooled welding machine is less than that of oil-cooled welding machine
5.6. METHOD OF WLDING
Welding techniques has been developed and adopted in recent years and up to date to meet the modern industrial requirement. And also has been stated earlier that welding is the most common method of fabricating metal product, and as a result in order to achieve optimum welding. There are two basic method of fusion welding involved, which are:
i) Left ward welding
ii) Right ward welding
These two method of welding material depends on some factors such as the nature and thickness of the material types of joint and accessibility.
LEFT WARD WELDING
The choice of welding is sometimes usually applicable to metal plate with the thickness not more than 5mm and also for metal such as cast iron and some non-famous metal. As the name of the metal implies the welding operation is started from the right hand end of the plate proceeding to the left at slow and steady rate to achieve uniform weld. The electrode is usually held at 30o – 40o and for blow pipe in gas fusion welding is at 60o – 70o angle to be joined. Blow pipe is given side to side motion to ensure both the edges of the plate being joined melt at the same rate as the filler metal rod.
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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 THREE - [ Total Page(s): 4 ]CHAPTER THREE3.0 GENERAL DESCRIPTION AND ITS WORKING PRINCIPLERegarding the design and fabrication of this project several information were gathered through consultation of previous journals text books and internet.Definition: “welding is the process of joining together two pieces of metal so that bonding take place at their original boundary surface s. when two parts to be joined are melted together, heat or pressure or both is applied and with or without added metal for formation o ... 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 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---