This document provides an overview of gas metal arc welding (GMAW), also known as metal inert gas (MIG) welding. It discusses GMAW safety, the basic principles and components of the GMAW process, how to set up GMAW equipment, important welding variables, and the advantages of GMAW. Key aspects covered include the use of a solid wire electrode and shielding gas, the electric arc between the wire and workpiece, and how to adjust variables like wire feed speed, voltage, and gas flow rate.
Gas Metal Arc welding is an arc welding process that uses an arc between a continuously-fed filler metal electrode and the weld pool.
Shielding from an externally supplied gas and without the application of a pressure.
It is also known as MIG welding (Metal Inert Gas) refers to the use of an inert gas while MAG (Metal Active Gas) welding involves the use of an active gas (i.e. carbon dioxide and oxygen).
Gas Metal Arc Welding or MIG welding .
Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas (MAG) welding, is a welding process in which an electric arc forms between a consumable wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to melt and join
pulsed spray
globular spray
Gas Metal Arc welding is an arc welding process that uses an arc between a continuously-fed filler metal electrode and the weld pool.
Shielding from an externally supplied gas and without the application of a pressure.
It is also known as MIG welding (Metal Inert Gas) refers to the use of an inert gas while MAG (Metal Active Gas) welding involves the use of an active gas (i.e. carbon dioxide and oxygen).
Gas Metal Arc Welding or MIG welding .
Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas (MAG) welding, is a welding process in which an electric arc forms between a consumable wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to melt and join
pulsed spray
globular spray
Explained Molten metal transfers in GMAW process ( MIG / MAG)
and equipments used in GMAW process and set up images are arranged in this welding process
What is MIG welding?
Working process
Process Parameters
Advantages
Limitations
Applications
MIG welding is an arc welding process in which a continuous solid wire electrode is fed through a welding gun and into the weld pool, joining the two base materials together.
A shielding gas is also sent through the welding gun and protects the weld pool from contamination.
In fact, MIG stands for “Metal Inert Gas”. The technical name for it is "Gas Metal Arc Welding" (or GMAW).
This lecture describes the arc welding processes TIG, Plasma, MIG and their modifications in connection with aluminium; it explains the choice of welding parameters; it demonstrates influence of the process on macrostructure. General engineering background and basic knowledge in electrical engineering is assumed.
Basic knowledge of Gas Tungsten Arc Welding (GTAW) for freshers in the field. This is one of the welding process that produces one of the highest quality of weld for high integrity structures...
welding,Plasma arc welding,Plasma,,Pilot Arc ,Keyhole,Weld bead geometry ,Transferred plasma arc welding process,India,Small Part Welding
Sealed Components
Tool Die & Mold Repair
Tube Mill Welding
Long Strip Metal Welding
Non-transferred plasma arc welding process,Two Modes of operation in PAW,. Melt – In mode
Keyhole mode
conduction mode
,Effect of Various Factors on weld Quality Nozzle shape and size , Features of Plasma Arc Welding,Advantages of Plasma Arc Welding,Disadvantages of Plasma Arc Welding,Application of Plasma Arc Welding
Instability of the keyhole
Tungsten electrode set-back
Composition and flow rate of the plasma gas
Tezpur University
It is a type of welding that uses a welding power supply to create an electric arc between an metal stick and the base material to melt the metals at the point-of-contact
Hi-Tech Transducers & Devices is comprehensive supplier for Thermocouple and Thermocouple for Steel - http://www.hitechtransducers.com/thermocouple-steel.html
Arc welding process that produces coalescence of metals by heating them with a constricted arc between an electrode and the work piece (transferred arc) or between the electrode and the water-cooled constricting nozzle (non transferred arc) .
Plasma: A gaseous mixture of positive ions, electrons and neutral gas molecules
Plasma welding is a advanced welding process . It can be used in automatic welding systems for high quality welding requirements . It has benefits of .welding at high speed, greater penetration, narrow HAZ (heat affected zone) and minimum heat input to the job.
Explained Molten metal transfers in GMAW process ( MIG / MAG)
and equipments used in GMAW process and set up images are arranged in this welding process
What is MIG welding?
Working process
Process Parameters
Advantages
Limitations
Applications
MIG welding is an arc welding process in which a continuous solid wire electrode is fed through a welding gun and into the weld pool, joining the two base materials together.
A shielding gas is also sent through the welding gun and protects the weld pool from contamination.
In fact, MIG stands for “Metal Inert Gas”. The technical name for it is "Gas Metal Arc Welding" (or GMAW).
This lecture describes the arc welding processes TIG, Plasma, MIG and their modifications in connection with aluminium; it explains the choice of welding parameters; it demonstrates influence of the process on macrostructure. General engineering background and basic knowledge in electrical engineering is assumed.
Basic knowledge of Gas Tungsten Arc Welding (GTAW) for freshers in the field. This is one of the welding process that produces one of the highest quality of weld for high integrity structures...
welding,Plasma arc welding,Plasma,,Pilot Arc ,Keyhole,Weld bead geometry ,Transferred plasma arc welding process,India,Small Part Welding
Sealed Components
Tool Die & Mold Repair
Tube Mill Welding
Long Strip Metal Welding
Non-transferred plasma arc welding process,Two Modes of operation in PAW,. Melt – In mode
Keyhole mode
conduction mode
,Effect of Various Factors on weld Quality Nozzle shape and size , Features of Plasma Arc Welding,Advantages of Plasma Arc Welding,Disadvantages of Plasma Arc Welding,Application of Plasma Arc Welding
Instability of the keyhole
Tungsten electrode set-back
Composition and flow rate of the plasma gas
Tezpur University
It is a type of welding that uses a welding power supply to create an electric arc between an metal stick and the base material to melt the metals at the point-of-contact
Hi-Tech Transducers & Devices is comprehensive supplier for Thermocouple and Thermocouple for Steel - http://www.hitechtransducers.com/thermocouple-steel.html
Arc welding process that produces coalescence of metals by heating them with a constricted arc between an electrode and the work piece (transferred arc) or between the electrode and the water-cooled constricting nozzle (non transferred arc) .
Plasma: A gaseous mixture of positive ions, electrons and neutral gas molecules
Plasma welding is a advanced welding process . It can be used in automatic welding systems for high quality welding requirements . It has benefits of .welding at high speed, greater penetration, narrow HAZ (heat affected zone) and minimum heat input to the job.
Manufacturing technology I ME 8351 joining process DrPETERPRAKASH
This is very much useful for engineering students, Teachers and industrialist. Adequate knowledge of the concept and principles of welding and welding process used in various industries.
A simple slideshow of common welding process, welding terminology, welding symbols / joint configurations, welder related operations, and welding safety.
Company Valuation webinar series - Tuesday, 4 June 2024FelixPerez547899
This session provided an update as to the latest valuation data in the UK and then delved into a discussion on the upcoming election and the impacts on valuation. We finished, as always with a Q&A
B2B payments are rapidly changing. Find out the 5 key questions you need to be asking yourself to be sure you are mastering B2B payments today. Learn more at www.BlueSnap.com.
Recruiting in the Digital Age: A Social Media MasterclassLuanWise
In this masterclass, presented at the Global HR Summit on 5th June 2024, Luan Wise explored the essential features of social media platforms that support talent acquisition, including LinkedIn, Facebook, Instagram, X (formerly Twitter) and TikTok.
Building Your Employer Brand with Social MediaLuanWise
Presented at The Global HR Summit, 6th June 2024
In this keynote, Luan Wise will provide invaluable insights to elevate your employer brand on social media platforms including LinkedIn, Facebook, Instagram, X (formerly Twitter) and TikTok. You'll learn how compelling content can authentically showcase your company culture, values, and employee experiences to support your talent acquisition and retention objectives. Additionally, you'll understand the power of employee advocacy to amplify reach and engagement – helping to position your organization as an employer of choice in today's competitive talent landscape.
Kseniya Leshchenko: Shared development support service model as the way to ma...Lviv Startup Club
Kseniya Leshchenko: Shared development support service model as the way to make small projects with small budgets profitable for the company (UA)
Kyiv PMDay 2024 Summer
Website – www.pmday.org
Youtube – https://www.youtube.com/startuplviv
FB – https://www.facebook.com/pmdayconference
Cracking the Workplace Discipline Code Main.pptxWorkforce Group
Cultivating and maintaining discipline within teams is a critical differentiator for successful organisations.
Forward-thinking leaders and business managers understand the impact that discipline has on organisational success. A disciplined workforce operates with clarity, focus, and a shared understanding of expectations, ultimately driving better results, optimising productivity, and facilitating seamless collaboration.
Although discipline is not a one-size-fits-all approach, it can help create a work environment that encourages personal growth and accountability rather than solely relying on punitive measures.
In this deck, you will learn the significance of workplace discipline for organisational success. You’ll also learn
• Four (4) workplace discipline methods you should consider
• The best and most practical approach to implementing workplace discipline.
• Three (3) key tips to maintain a disciplined workplace.
Affordable Stationery Printing Services in Jaipur | Navpack n PrintNavpack & Print
Looking for professional printing services in Jaipur? Navpack n Print offers high-quality and affordable stationery printing for all your business needs. Stand out with custom stationery designs and fast turnaround times. Contact us today for a quote!
Discover the innovative and creative projects that highlight my journey throu...dylandmeas
Discover the innovative and creative projects that highlight my journey through Full Sail University. Below, you’ll find a collection of my work showcasing my skills and expertise in digital marketing, event planning, and media production.
The world of search engine optimization (SEO) is buzzing with discussions after Google confirmed that around 2,500 leaked internal documents related to its Search feature are indeed authentic. The revelation has sparked significant concerns within the SEO community. The leaked documents were initially reported by SEO experts Rand Fishkin and Mike King, igniting widespread analysis and discourse. For More Info:- https://news.arihantwebtech.com/search-disrupted-googles-leaked-documents-rock-the-seo-world/
Premium MEAN Stack Development Solutions for Modern BusinessesSynapseIndia
Stay ahead of the curve with our premium MEAN Stack Development Solutions. Our expert developers utilize MongoDB, Express.js, AngularJS, and Node.js to create modern and responsive web applications. Trust us for cutting-edge solutions that drive your business growth and success.
Know more: https://www.synapseindia.com/technology/mean-stack-development-company.html
The Influence of Marketing Strategy and Market Competition on Business Perfor...
Mig
1. GMAW / Mig Welding
Munim Shaukat (Lecturer)
Mechanical Engineering Department
University of Lahore
2. Over view
a During this overview, we will discuss the
following topics:
• Safety
• GMAW Basics
• Equipment Set-Up
• Welding Variables
• Process Advantages and Limitations
3. GMAW Safety
a ‘GMAW Safety’ is supplemental and does
not replace the information found in ‘Arc
Welding Basics’
4. a Fumes and Gases can be dangerous
• Keep your head out of the fumes
• Use enough ventilation, exhaust at the arc, or both, to keep
fumes and gases from your breathing zone and the general
area
• Local exhaust and mechanical ventilation can be used
without reducing weld quality
a Electric Shock can kill –
• Do not touch the electrode or metal parts of the electrode
holder with skin or wet clothing
• Keep dry insulation between your body and the metal being
welded or ground
• The coil of wire is ‘electrically hot’ so do not touch it.
5. a REMEMBER – Gas Cylinders require SPECIAL safety
precautions
• Cylinders must be secured in an upright position
• Cylinders should be located in an area away from arc
welding, cutting, heat, sparks, and flame
6. GMAW Principles
a GMAW stands for Gas Metal Arc Welding
a GMAW is commonly referred to as MIG or Metal Inert
Gas welding
a During the GMAW process, a solid metal wire is fed
through a welding gun and becomes the filler material
a Instead of a flux, a shielding gas is used to protect the
molten puddle from the atmosphere which results in a
weld without slag
a GMAW is the most widely used arc
a welding process in the United States
7. GMAW Circuit
a Three things happen when the GMAW gun trigger is
pulled:
• The wire electrode begins to feed
• The circuit becomes electrically ‘hot
• Current flows from the power source through the gun
cable, gun, contact tip to the wire and across the arc. On
the other side of the arc, current flows through the base
metal to the work cable and back to the power source
– Shielding gas flows through the gun and out the nozzle
8.
9. GMAW Components
a DC or Direct Current power supply
a Electrode or wire feed controller
a Wire drive roller assembly
a Shielding gas source (cylinder) & regulator
a Manually held Gun & ground clamps
a Wire reel
10. 1 - Electrode
a A GMAW electrode is:
• A metal wire
• Fed through the gun by the wire feeder
• Measured by its diameter
11. 2 - Arc
a An electric arc occurs in the gas filled space
between the electrode wire and the work
piece
aElectric arcs can
generate temperatures up
to 10,000°F
12. 3 - Weld Pool
a As the wire electrode and work piece heat up and melt,
they form a pool of molten material called a weld pool
a This is what the welder watches and manipulates while
welding
13. 4 - Shielding Gas
a GMAW welding requires a shielding gas to protect the
weld puddle
a Shielding gas is usually CO2, argon, or a mixture of both
aThe gauges on the regulator
show gas flow rate and bottle
pressure
14. 5 - Solidified Weld Metal
a The welder “lays a bead” of molten metal that
quickly solidifies into a weld
a The resulting weld is slag free
aAn aluminum weld done with
the GMAW process
15. GMAW Equipment Set Up
1. Connect work clamp
2. Select electrode
a. Type
b. Diameter
3. Select shielding gas
4. Turn power supply on
5. Adjust machine output
a. Wire feed speed
b. Voltage
6. Adjust gas flow rate
16. GMAW Process Variables
a Welding variables
• Wire Feed Speed (WFS)
• Voltage
a Operator controlled variables
• Travel speed
• Gun angles
• Contact tip to work distance
(CTWD)
• Gas flow rate
18. GMAW Advantages
• Welding can be done in all positions
• No slag removal required
• High efficiency
• Less work piece distortion
• Large gaps bridged easily ,
• High Weld Quality
19. Typical Setup for voltage
• The GMAW machine is a “Constant Voltage”
power supply. This is set using the voltage dial
• This setting can be monitored by the “Volt” meter
on the front panel of the welder
• Ideal voltage settings can be found in the wire
manufactures data book
20. Typical Setup for Wire speed
• The wire feed rate or speed is set using the dial on the wire
controller This setting increases or decreases current or
“Heat”. This setting is measured in AMPS or IPM
(inches per minute )
• Ideal settings can be monitored by the “Amp” meter on the
front panel of the welder. Note : Some machines display
“Current” (Same as AMPS) or IMP
• Ideal settings can be found in the wire manufactures data
book for both IPM and Current
21. Shielding Gas
• Air in the welding zone is displaced by inert gas to
“Shield” the molten weld pool and prevent it from
contamination from Oxygen, Nitrogen and Water
present in the atmosphere.
• Insufficient gas flow will not displace the
atmosphere resulting in “porosity” or voids in the
deposited weld.
• Flow is measured in CFH (Cubic Feet per Hour).
22. Insufficient Shielding Gas coverage
• Gas not turned on
• Flow rate not properly adjusted
• Leaks in the hose supplying the shielding
gas to the machine
• GMAW / MIG Gun loose at wire drive
connection
• Spatter buildup on gas cup
• Windy environment