My Exam Notes
  • Home
  • CURRENT AFFAIRS
  • GENERAL AWARENESS
    • Child Category 1
  • BIHAR PSC
  • Home
  • CURRENT AFFAIRS
  • GENERAL AWARENESS
  • BIHAR GK
  • RAJASTHAN GK
  • MECHANICAL NOTES

Thursday, August 21, 2014

METAL INERT GAS WELDING AND TUNGSTEN INERT GAS WELDING

 My Exam Notes     7:57 AM     WELDING     9 comments   

      TUNGSTEN INERT GAS WELDING (TIG)

TUNGSTEN INERT GAS WELDING (TIG)

CHARACTERISTICS IN BRIEF
  • It is known as GAS TUNGSTEN ARC WELDING (GTAW).
  • Also called Argon arc welding.
  • The region of weld is surrounded by inert gas. No atmospheric contact, hence no contamination.
  • In this welding power source is connected to electrode and the work material.
  • Arc is produced between the electrode and work piece.
  • Coolant is supplied to avoid the melting due to high temperature.
  • Such welding is used for highly reactive materials. Stainless steel, aluminum are some examples.
  • For thin metals filler is not used.
 DEMERITS
  • Overall production is costlier.
  • If tungsten particle adhere in weld pool then it may make weld brittle.


 METAL INERT GAS WELDING (MIG)

 METAL INERT GAS WELDING (MIG)



The various components of metal inert arc welding are:-
1) Power source
2) Electrodes

3) Weld torch
4) Shield gas
5) Weld pool.


The power source used is constant voltage ranging from 25 volt to 150 volt is needed and direct current is preferred. Sometimes alternating current can also used. Direct current has a advantage of eliminating arc blow. Depending on material thickness current is applied during welding. For 5 mm thick metals current of approx 200 ampere is required. Similarly for thickness approximately 10 mm current of nearly 750 ampere will be required.
The electrode used in metal inert gas welding is made up of similar material as that work piece. The diameter entirely depends on the current which is dependent on the thickness of material. Greater the thickness of work piece, greater will be the current required and greater will be the diameter required.
There are various ways to transfer metal in the welding pool.


1) By short circuiting
2) Spraying
3) Pulsation
4) Globular transfer


It is a type of metal joining process in which electric arc is maintained above the work piece through welding gun. The wire electrode also called filler wire or consumable electrode is fed continuously. At high temperature the work piece melts and also the wire electrode melts which adds to pool of molten metal. During the welding process gas shield is also provided by the welding gun along with consumable electrode. The shielding gas may be carbon dioxide which provides protective surrounding around the weld pool to avoid contamination of atmosphere and gases like oxygen and nitrogen. Desirable amount of shield gas is induced through welding gun depending on type of operation, work piece geometry, current and type of shield gas and current.



     

    • Share This:  
    •  Facebook
    •  Twitter
    •  Google+
    •  Stumble
    •  Digg
    Email ThisBlogThis!Share to TwitterShare to Facebook
    Newer Post Older Post Home

    9 comments:

    1. WeldclassMay 17, 2019 at 9:42 PM

      I am thankful to this blog giving unique and helpful knowledge about this topic. Welding Curtains

      ReplyDelete
      Replies
        Reply
    2. William JessieJuly 19, 2019 at 11:37 AM

      I admire this article for the well-researched content and excellent wording. I got so involved in this material that I couldn’t stop reading. I am impressed with your work and skill. Thank you so much. Read the latest reviews of primeweld tig 225 machine at getweldingadvice

      ReplyDelete
      Replies
        Reply
    3. MonuAugust 11, 2019 at 12:34 AM

      Great post. This post helps to get knowledge on MIG and TIG welding. Thanks for sharing this post.
      LPG Gas Equipment Suppliers

      ReplyDelete
      Replies
        Reply
    4. Joseph MikelFebruary 26, 2020 at 8:51 PM

      You have written too well in your blog about Welding. These good pieces of knowledge for those who are looking for this information which you got here. Thank you. Welding supply Miami

      ReplyDelete
      Replies
        Reply
    5. Laura bushJune 14, 2020 at 11:29 PM

      Nice post, impressive. It’s quite different from other posts Welding supplies

      ReplyDelete
      Replies
        Reply
    6. cruxweldJuly 2, 2020 at 8:05 AM

      This blog website is actually valuable and informative thanks for sharing with us and if anyone need profile cutting machine visit our site as soon as possible.

      ReplyDelete
      Replies
        Reply
    7. jassibushAugust 6, 2020 at 8:12 AM

      After reading this, I got very much information about Welding because you are giving such good information inside your blog. I would like to say that you share more articles with us and if anyone looking for Welders equipment parts, then visit our site tlweldingandsupply.com

      ReplyDelete
      Replies
        Reply
    8. cruxweldOctober 7, 2020 at 2:41 AM

      Your blog take to me a very valuable place. It's amazing to go through these kind of the informative blog. Get the best info about stud welding machine then visit at cruxweld.com

      ReplyDelete
      Replies
        Reply
    9. Rozer BaineJanuary 1, 2021 at 10:14 PM

      I am very happy to say that this is an interesting post. I learned new information from your article, you are doing a great job. Thanks for sharing this kind of blog. Yarder Manufacturing

      ReplyDelete
      Replies
        Reply
    Add comment
    Load more...

    MY TRAVEL VLOG-Being Tourist

    Popular Posts

    • Environment Current Affairs 2019 PDF download | Important Questions |
      Watch video on EXAM FOCUS YOUTUBE CHANNEL. Which city of china in only one with all electric taxis? Taiyuan Shenzhen Jingia...
    • TURBOMACHINES
                      TURBOMACHINE DEFINATIONAND  EXPLANATION A turbo-machine is a device in which energy transfer takes place between ro...
    • #MOST IMPORTANT AUGUST CURRENT AFFAIRS 2018 #PDF link #NOTES #अगस्त करें...
      PDF IS BELOW NOTES - Go Down Notes of August Current Affairs- Navlekha a new platform launched by Google .Google has announced pr...
    • MAY (1-15th) CURRENT AFFAIRS 2019 | MCQ's | EXPLAINED | FREE PDF |
      PDF WILL BE UPLOADED ON 24/05/2019 The newly elected prime minister of Israel is? Benjamin Netanyahu What is the theme of Internati...
    • #SPACE CURRENT AFFAIRS last 6 months #स्पेस/अंतरिक्ष विज्ञान करेंट अफेयर...
      Indian national committee for space research was established in the year 1962 Indian Space Research Organisation was founded in year 19...
    • BANKING CURRENT AFFAIRS | MD, CEO, CHAIRMAN Of BANKS (UPDATED 2019)| MCQ's | static gk
      This POST is on Banking Awareness 2019 with all important National Banks and its MD/CEO/CHAIRMAN with important points to remember for all...
    • ENERGY LOSS IN PIPES, Darcy- weicbach formula, Chezy's formula, minor losses in pipe
      MECHANICAL TIPS AND STUDY MATERIAL When ever there is flow of fluid in pipes there will be resistance which add to energy loss. For our stud...
    • METAL INERT GAS WELDING AND TUNGSTEN INERT GAS WELDING
              TUNGSTEN INERT GAS WELDING (TIG) CHARACTERISTICS IN  BRIEF It is known as GAS TUNGSTEN ARC WELDING (GTAW). Also called Argon arc wel...
    • ABRASIVE JET MACHINING, WATER JET MACHINING AND ULTRASONIC MACHINING
          ABRASIVE JET MACHINING(AJM) As explained non traditional machining process involves machining action by indirect contact between tool an...
    • BERNOULLI'S THEOREM AND ITS APPLICATION-PITOT TUBE AND VENTURIMETER
      BER NOULLI'S THEOREM AND APPLICATION In steady flow of fluid, the Bernoulli principle state that at any point of time the sum of all for...

    Categories

    AUTOMOBILE BASICS BHIHAR PSC BIHAR PSC biology quiz CURRENT AFFAIRS economics FASTEST MACHINES FLUID MECHANICS GEARS GENERAL AWARENESS HEAT AND MASS TRANSFER I C ENGINE JET ENGINES JOB OPENING IN USA MACHINING PROCESSES MANUFACTURING PROCESS MATERIAL SCIENCE mechanical engineering MECHANICAL JOB VACANCY IN INDIA MECHANICAL VIBRATION MISSILES POLITY QUIZ POWER PLANT ENGINEERING RAJASTHAN GK sports STRENGTH OF MATERIAL THERMODYNAMICS TOP COLLEGES TOP SPEED TURBINES WELDING

    Pages

    • QUIZ

    Featured post

    SCIENCE & TECHNOLOGY CURRENT AFFAIRS 2018 (JANUARY - JUNE)विज्ञान प्रौद्...

    CBSE (Central Board of indirect taxes) launched which app to check person collecting GST? GST verify National science day was celebrate...

    ad code

    Copyright © My Exam Notes | Powered by Blogger
    Design by Hardeep Asrani | Blogger Theme by NewBloggerThemes.com | Distributed By blogger Templates