This is a labreport on chemical kinetics... From this labreport students of chemical engineering and chemistry students can get a huge advantage in working in their lab..Full description
Lecturer’s Name : Muhd Nizam b. Zahari Group/ Name:
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-ite : Labor0 1c' -un2sten 3nert Gas 4edin2
-heory/ Summary :
Tungsten Inert gas welding (TIG) also known as Gas Tungsten arc welding(GTAW) welding(GTAW) is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by an inert shielding gas (argon or helium) and a filler metal is normally used. TIG welding is most commonly used to weld thin sections of stainless steel and non-ferrous metals such as aluminum magnesium and copper alloys. The process grants the operator greater control o!er the weld than competing processes such as shielded metal arc welding and metal arc welding ("IG) allowing for stronger higher #uality welds and also more clean because there is no slag lea!e after welding. $owe!er TIG is comparati!ely more comple% and difficult to master and it is significantly slower than other welding techni#ue. &esides welder is also e%posed to huge intensities of light.
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Methodoo2y : '. raw the e#uip e#uipment ment for Tung Tungsten sten inert gas weldin welding. g.
5esut 8 +iscussion: '. ketch ketch the process process for for Tung Tungsten sten inert inert gas welding welding
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6oncusion:
As the conclusion to get an e%cellent TIG welding all the problems during welding must be sol!e wisely such as start welding once the puddle has a shiny appearance always remo!e all grease oil and moisture from the filler and base metal. *ther than that reducing arc length to pro!ide better directional control and to help increase penetration. It is important not to under-fill the +oint or weld too #uickly. &esides reducing amperage to pre!ent o!erheating plus slightly increase tra!el speed or shorten the arc length.
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-utoria: '. What What is the the ad!ant ad!antage age of of TIG TIG weldi welding, ng, I) We Welding lding is !ery !ery clean and and lea!es no slag at all. II) $eat and amperage are precisely controlled and changes changes using a foot mechanism mechanism III) ses less energy than other welding methods I) /an be done in any position 0. What What is the the limi limitat tation ion of of TIG weldin welding, g, I) 1e#uires high skill to master II) low process III) Welder is e%posed to huge intensities of light I) "ore e%pensi!e compare to "IG welding 2. What What is the the elect electrod rodee used used in TIG TIG weldi welding, ng, I) Tungsten electrode 3 II) /erium o%ide 3 III) 4anthanum o%ide 3 I) Aluminium electrode3 3 &ased on it applications