1 Copyright  2004 Lincoln Global Inc. GAS METAL ARC WELDING GMAW(MIG/MAG)

Slides:



Advertisements
Similar presentations
Chapter 19 GMAW–Equipment
Advertisements

ESAB University & Florence-Darlington Technical College
Introduction to(GMAW) Gas Metal Arc Welding
1 Copyright  2004 Lincoln Global Inc. Shielded Metal Arc Welding SMAW(Stick)
1 Copyright  2004 Lincoln Global Inc. Shielded Metal Arc Welding SMAW(Stick)
1 Copyright  2004 Lincoln Global Inc. GAS METAL ARC WELDING GMAW(MIG/MAG)
1 Copyright  2004 Lincoln Global Inc. Shielded Metal Arc Welding Part II A.General Information B.Polarity C.Set Up D.Striking an Arc.
Arc Welding Equipment
GMAW (MIG Welding) SECTION OVERVIEW:
Shielded Metal Arc Welding Arc Welding? Uses electricity for heat.
Introduction to (SMAW) Shielded Metal Arc Welding
GMAW (MIG Welding) SECTION OVERVIEW:
Gas Metal Arc Welding (GMAW)
Welding: Intro to the GMAW Machine Gas Metal Arc Welding (“MIG”) Copyright © Texas Education Agency, All rights reserved.
Enhanced Surface Tension Transfer for Pipe Welding
Shielding Gases - A major consumable in Welding l On an average 2 Tons of gas used per tonne of wire l Extensive research on Shielding gases to improve.
1 Copyright  2004 Lincoln Global Inc. Shielded Metal Arc Welding SMAWEquipment&Safety.
Arc Welding Mild Steel and GMAW/GTAW Welding
Shielded Metal Arc Equipment, Setup, and Operation
A Presentation by Neil Cox
1 Electric Arc Welding. 2 Definition Electric arc welding: A group of fusion welding processes that use an electric arc to produce the heat required for.
SHIELDED METAL ARC WELDING. PROCESS Arc melts base metal and end of electrode. Melted electrode crosses arc and is deposited in the weld pool to form.
Gas Metal Arc Welding: An Introduction
Basic equipment setup and welding procedures
Shielded Metal Arc Welding: An Introduction
Introduction to practical application of wire feed welding.
GMAW Principles SECTION OVERVIEW:
Gas Metal Arc Welding (GMAW)
Gas Metal Arc Welding (Metal Inert Gas) (MIG)
DEFINITION OF SPRAY TRANSFER KELVIN LONGDEN PROCEDURES DEPARTMENT.
Shielded Metal Arc Welding (SMAW)
Arc Welding Equipment Prepared by Dr. Dale Carpentier and Mr. Barry Brazelton Monroe Area High School Modified by Georgia Agriculture Education Curriculum.
SMAW (Stick Welding) SECTION OVERVIEW:
Weld Joints. Butt Joint Corner Joint Outside Inside.
Metal Inert Gas Welding. Metal Inert Gas (MIG) or Gas Metal Arc Welding (GMAW) is the most popular of the arc welding processes. –It is mainly because.
Gas Metal Arc Welding GMAW Modes of Metal Transfer Spray Globular Short Circuiting Pulsed Spray Gas Metal Arc Welding.
New Mexico FFA Agricultural Mechanics Career Development Event
After today YOU should be able to… – Identify parts of an ARC welder with 100% accuracy on a written quiz. – Recognize welding bead distortion caused.
Arc Welding Equipment. Arc Welding Arc welding Arc welding –uses electricity to heat and melt the metal. Shielded metal arc welding Shielded metal arc.
GMAW FCAW and MCAW Gas Metal Arc Welding Flux Core Arc Welding
GMAW Process and Set Up Atwater High School Ag Shop Meredith.
GMAW (MIG Welding). 2 GMAW Unit Topics During this overview, we will discuss the following topics: Safety GMAW Basics Equipment Set-Up Welding Variables.
Arc Welding Equipment Welding Machines AC – (alternating current) used for most agricultural arc welding jobs and has low purchase cost compared.
AGRICULTURAL MECHANICS I UNIT I:METAL SKILLS COMPETENCY:AM26.00 Research arc welding equipment. OBJECTIVE:AM26.01 Compare types of arc welding machines,
MIG Welding. MIG – Metal Inert Gas, also referred to as GMAW. GMAW – Gas Metal arc welding.
What is Welding? As Identified by the American Welding Society, a weld is a formed when separate pieces of material are Fused together through the application.
MIG Welding Manufacturing and Materials Processes.
Shielded Metal Arc Welding (SMAW)
 Manual arc welding  Heat for welding generated by electric arc established between flux-covered consumable metal rod (electrode) and work 
Unit 215 – Welding by TIG Process
Chapter 16 GMAW and FCAW: Equipment Assembly and Adjustment Miller Electric Mfg. Co.
DOING WELDING, THERMAL CUTTING AND WARMING
Shielded Metal Arc Welding: An Introduction
GMAW Power Sources Rational Power Source Output
MIG Welding (Gas Metal Arc Welding [GMAW])
GMAW.
Teknologi Dan Rekayasa
PRINCIPLES OF MIG WELDING TECHNOLOGY
Intro To Basic Gas Metal Arc Welding
Gas Metal Arc Welding (GMAW) Flux Cored Arc Welding (FCAW)
GAS METAL ARC WELDING (GMAW)
Gas Metal Arc Welding (GMAW)
Scoala Altfel 15Mai2017-CTGM sudura&3D-CAD&LinuxFree
Basic equipment setup and welding procedures
GMAW Welding Basic information.
GMAW GAS METAL ARC WELDING.
In Agriculture Systems 1
Items of importance when GMAW welding
Arc Welding – Part II AG 221 – Metals and Welding.
Gas Metal Arc Welding Equipment, Setup, and Operation
Presentation transcript:

1 Copyright  2004 Lincoln Global Inc. GAS METAL ARC WELDING GMAW(MIG/MAG)

2 Copyright  2004 Lincoln Global Inc. Gas Metal Arc Welding Principles of the GMAW Process

3 Copyright  2004 Lincoln Global Inc. Principles of the GMAW Process

4 Copyright  2004 Lincoln Global Inc. Equipment Components Constant Voltage (CV) Power Source or Constant Current (CC) Power SourceConstant Voltage (CV) Power Source or Constant Current (CC) Power Source Constant Speed Wire FeederConstant Speed Wire Feeder Gun and CablesGun and Cables Shielding Gas Kit and Gas CylinderShielding Gas Kit and Gas Cylinder Consumable Wire ElectrodeConsumable Wire Electrode

5 Copyright  2004 Lincoln Global Inc. Constant Voltage Welding Circuit Consists of Power Source, Wire Feeder, and Work and Electrode Cables/LeadsWelding Circuit Consists of Power Source, Wire Feeder, and Work and Electrode Cables/Leads Voltage is Proportional to Arc LengthVoltage is Proportional to Arc Length Current Changes Dramatically to Maintain Constant Arc LengthCurrent Changes Dramatically to Maintain Constant Arc Length

6 Copyright  2004 Lincoln Global Inc. Constant Current Welding Circuit Consists of Power Source, Voltage Sensing Wire Feeder, Work and Electrode Cables/LeadsWelding Circuit Consists of Power Source, Voltage Sensing Wire Feeder, Work and Electrode Cables/Leads Voltage is Proportional to Arc LengthVoltage is Proportional to Arc Length Current Remains Constant Even for Changes in Voltage Due to Changes in Arc LengthCurrent Remains Constant Even for Changes in Voltage Due to Changes in Arc Length

7 Copyright  2004 Lincoln Global Inc. Duty Cycle The Duty Cycle of a power source is the percentage of a ten (10) minute period that it can operate at the rated output current setting.

8 Copyright  2004 Lincoln Global Inc. Duty Cycle Duty CycleAmperes Time Available Available 30% Min/10 Min 30% Min/10 Min 40% Min/10 Min 40% Min/10 Min 50% Min/10 Min 50% Min/10 Min 60% Min/10 Min 60% Min/10 Min 70% Min/10 Min 70% Min/10 Min 80% Min/10 Min 80% Min/10 Min 90% Min/10 Min 90% Min/10 Min 100% Min/10 Min 100% Min/10 Min

9 Copyright  2004 Lincoln Global Inc. Inductance Control “Fine Adjustment” Controls Arc Characteristics“Fine Adjustment” Controls Arc Characteristics Determines the Rate at Which the Amperage Rises When a Short Circuit is ProducedDetermines the Rate at Which the Amperage Rises When a Short Circuit is Produced Also Called Pinch or Arc ControlAlso Called Pinch or Arc Control Max. Pinch = Min. InductanceMax. Pinch = Min. Inductance Min. Pinch = Max. InductanceMin. Pinch = Max. Inductance

10 Copyright  2004 Lincoln Global Inc. Max. Inductance vs. Min. Inductance Thicker MaterialsThicker Materials Deeper PenetrationDeeper Penetration More Fluid Weld PoolMore Fluid Weld Pool Flatter / Smoother WeldFlatter / Smoother Weld Reduce SpatterReduce Spatter Stainless SteelsStainless Steels Thin MaterialsThin Materials Arc Stability On Open GapsArc Stability On Open Gaps Convex Weld BeadConvex Weld Bead Increased SpatterIncreased Spatter Colder ArcColder Arc Improved Weld Pool ControlImproved Weld Pool Control

11 Copyright  2004 Lincoln Global Inc. Welding Guns 100 Through 550 Amp GMAW Gun and Cables

12 Copyright  2004 Lincoln Global Inc. 300 and 500 Amp Work Clamps GC 300 GC 500 Work Clamps

13 Copyright  2004 Lincoln Global Inc. Cables

14 Flowmeter Flowgauge Harris Calorific Equipment Shielding Gas Kit with Hose

15 Copyright  2004 Lincoln Global Inc. The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment and consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or information about their use of our products. We respond to our customers based on the best information in our possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such information or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customer’s particular purpose, with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter any warranty with respect to the sale of our products. Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility of, the customer. Customer Assistance Policy