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Manufacturing & Metalworking

Welding

Welding Article

Welding is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld puddle) that cools to become a strong joint, with pressure sometimes used in conjunction with heat, or by itself, to produce the weld. This is in contrast with soldering and brazing, which involve melting a lower-melting-point material between the workpieces to form a bond between them, without melting the workpieces.

Many different energy sources can be used for welding, including a gas flame, an electric arc, a laser, an electron beam, friction, and ultrasound. While often an industrial process, welding can be done in many different environments, including open air, underwater and in space. Regardless of location, however, welding remains dangerous, and precautions must be taken to avoid burns, electric shock, poisonous fumes, and overexposure to ultraviolet light.

Until the end of the 19th century, the only welding process was forge welding, which blacksmiths had used for centuries to join metals by heating and pounding them. Arc welding and oxyfuel welding were among the first processes to develop late in the century, and resistance welding followed soon after. Welding technology advanced quickly during the early 20th century as World War I and World War II drove the demand for reliable and inexpensive joining methods. Following the wars, several modern welding techniques were developed, including manual methods like shielded metal arc welding, now one of the most popular welding methods, as well as semi-automatic and automatic processes such as gas metal arc welding, submerged arc welding, flux-cored arc welding and electroslag welding. Developments continued with the invention of laser beam welding and electron beam welding in the latter half of the century. Today, the science continues to advance. Robot welding is becoming more commonplace in industrial settings, and researchers continue to develop new welding methods and gain greater understanding of weld quality and properties.

Welding Items

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Lincoln/Harris KH656 Oxygen-Acetylene Torch Outfit, NEW
$220.90
NEW Solar Power Auto Darkening Welding Helmet ANSI
$29.99
MIG consumable parts Tweco Heavy Duty 16 series
$9.99
Miller .030 Spoolmatic contact tips
$5.99
Century/Lincoln 200GS MIG Welder 117-089-001 (NEW)
$1260.39
Miller .035 Spoolmatic contact tips
$3.99
harris pipeliner torch set
$150.00
Lincoln K2278-1 Handy Core 110V wire feed welder (NEW)
$262.62
Miller Elite Stars & Stripes Welding Helmet
$177.50
NEW Oxy Acetylene Welding Cutting Torch Kit Fits Victor
$59.95
Ten Lincoln Electric KP-2016-2B1 Alumina Nozzles #8 NEW
$9.99
Lincoln/Marquette Q10152 100 Amp AC Welder (NEW)
$153.07
MIG Gun, 180A 15ft, Century, Lincoln, Miller, Euro,more
$108.38
Century/Lincoln K2501-1 80GL 70A Wire Feed Welder (NEW)
$233.87
Miller Syncrowave 180SD ac/dc tig w/ water cooler
$1300.00
Sellstrom Auto-Darkening Titan Helmet Finish Line (NEW)
$142.40
Lincoln K610-2 MIG Conversion Kit for Weld-PAK (NEW) CA
$142.37
10 rods 1/8 x18" aluminum weld rod
$5.99
RAMSOND CUT 50 DX A 50A AMP AMP INVERTER PLASMA CUTTER
$305.00
WELDING CAPS SIZE M & L QUANTITY 10
$7.50
5 BERNARD WELD LEADS
$202.50
LINCOLN LN-7 CONSTANTSPEED WIRE FEED WELDER,CABLES NICE
$199.99
Lincoln K802R Power Plug Kit (NEW)
$55.50
Lincoln K2278-1 Handy Core 110V wire feed welder (NEW)
$262.62
Victor Heavy Duty Cutting Welding Torch CA2460
$76.00
CO2 Bottle & Regulator 5.25”x14”, Keg-erator, Airbrush
$51.00
NEW Oxy Acetylene Welding Cutting Torch Kit Fits Victor
$59.95
VICTOR TORCH TIPS
$9.99
Auto Darking Lens with Solar Panel - FREE SHIPPING
$40.00
Lincoln K520 Utility cart,(150 cu.ft.bottle cap.) (NEW)
$194.52
Miller .030 Spoolmatic contact tips
$5.99
Lincoln K886-1 Canvas Cover Large (NEW)
$117.44
Lincoln Electric 180 HD MIG/Flux-cored Wire Feed Welder
$450.00
Lincoln K2275-1 Welding Cart for 110V MIG (NEW)
$105.11
Century/Lincoln 235A Arc welder 110-131-000 (NEW)
$293.67
Sellstrom Auto-Darkening Titan Helmet Hot Rod Bl (NEW)
$136.16
WELDING HELMET AUTO DARKENING MIG TIG ARC GAS WELDERS 7
$24.92
Tillman welding cape sleeve 3221L large
$9.99
Lincoln/Harris KH657 Port-A-Torch Kit
$328.18
Invacare Passport Nebulizer Compressor
$9.99
MIG Gun, 250A 25ft, Century, Lincoln, Miller, Euro,more
$199.50
Snap-on Plasma Cutter, BRAND NEW, NO RESERVE!!!!
$795.00
Lincoln K2343-2 Eagle 10,000 Engine Driven Welder
$2890.33
COBRAMATIC MK3A FEEDER WATER COOLED KINGCOBRA TORCH
$162.50
MIG Gun, 250A 15ft, Century, Lincoln, Miller, Esab,more
$133.31
Harris calorific oxy/acetylene cutting torch head line
$150.00
Century/Lincoln 70A AC Arc Welder 110-129-000 (NEW)
$130.07
Miller .035 Spoolmatic contact tips
$5.99
2pc Magnetic Welding Ground Clamp TIG MIG Arc Stick Cut
$16.14
3) WELDER MAGNETS 50lb METAL FAB MIG TIG TACK WELDING
$9.98
AUTODARK WELDING HELMET MASK used w mig wire tig welder
$22.50
Century/Lincoln 285A AC/DC Arc Welder 110-133-000 (NEW)
$710.41
MIG Gun, 400A 12ft, Lincoln, Miller, Esab, Euro, more
$146.62
MIG Gun, 400A 15ft, Lincoln, Miller, Esab, Euro, more
$156.86
New Auto Darkening Welding Helmet Welder Arc Mig Tig
$39.99
Sellstrom Welding Helmet Hood Shade10 29101-10WW
$55.00
MIG Gun, 250A 12ft, Century, Lincoln, Miller, Euro,more
$126.95
Mig Tig Stick Aluminum Steel Welding Course C D*
$2.99
MIG TIG Plasma Cutter Arc Welding Cart w/ Tank Storage
$59.99
Welding Gloves High Quality Used Leather & Reflective
$10.50
New Auto Darkening Welding Helmet Welder Arc Mig Tig
$29.99
Lincoln K2696-1 Easy-Core 125 wire feed welder (NEW)
$451.24
GOSS TORCH KIT W/2 GAUGE/REG, 1 HOSES 2 HNDLE. NR GOOD
$20.50
MIG Gun, 500A 15ft, Lincoln, Miller, Euro
$166.70
2Pr Gloves Premium Welders Torch LEATHER Work Kevlar Go
$4.99
Lincoln K802N Power Plug Kit (NEW)
$62.50
Sellstrom Auto-Darkening Titan Helmet Freedom (NEW)
$142.40
TURBO TORCH ROF-LP Outlet Fitting for R-LP Regulator
$9.75
NEW PACK OF 5 HYPERTHERM ELECTRODES 220037 PMX1650
$9.95
Lincoln Welder Fuel Cap
$20.86
Lincoln K610-1 MIG Conversion Kit for Pro-100 (NEW)
$130.68
2P Gloves Premium LEATHER WELDING Torch WORK CUT Heat
$3.99
Thermal Arc 150 GTS / Tig / Stick Welder
$406.25
airarc
$75.00
Lincoln Exciter Cover
$0.99
12 misc Vise -Grip welding clamps
$117.50
NEW Hypertherm Powermax 350 Plasma Arc Cutting Cutter
$949.99
NEW-PLASMA-25'-# PC-30-25 AAA-CUTTING TORCH PACKAGE-+++
$199.00
Lincoln K664-2 .035 Aluminum Welding Kit (NEW)
$66.59
MILLER PORTABLE SPOT WELDER 220 VOLT WORKS GREAT
$250.00
Century/Lincoln 140GS MIG Welder 117-087-000 (NEW)
$603.05
MIG Gun, 500A 12ft, Lincoln, Miller, Euro
$158.07
Lincoln K2377-1 Canvas Cover (Small) (NEW)
$34.54
MIG Gun, 180A 12ft, Century, Lincoln, Miller, Euro,more
$100.41
Lincoln K2698-1 Easy-MIG 180 Welder (NEW)
$708.86
Lincoln K2532-1 Magnum 100SG Spool Gun, Air-Cool (NEW)
$195.39
Black Stallion 30 in. Welding Coat X-LARGE F9-30C
$9.99
Lincoln K530-5 Magnum 100L Gun 10 ft 035-045 (NEW)
$125.91
MIG Gun, 250A 20ft, Century, Lincoln, Miller, Euro,more
$173.58
Sellstrom Auto-Darkening Titan Helmet Victory Lane(NEW)
$142.40
Lincoln K2526-1 MIG Conversion Kit for Pro-Core 125
$148.90
RAMSOND 50 A PLASMA CUTTER 180 AMP TIG 160 ARC WELDER
$500.99
Lincoln K1357 AC-225C stick welder (NEW)
$341.84
Lincoln K2697-1 Easy-MIG 140 Welder (NEW)
$561.65
Century/Lincoln 235A AC/DC Arc welder 110-132-000 (NEW)
$505.39
Miller Big Window Elite "Stars & Stripes" Helmet
$150.00
MIG consumable Heavy Duty Tweco Eliminator Parts
$9.99
Lincoln/Marquette Q12179 110Amp MIG Welder (NEW)
$312.16
Harris cutting tip nut 6259-2
$10.95
Lincoln K886-1 Canvas Cover Large (NEW)
$117.44