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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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PUROX #W-201 OXY-ACETYLENE CUTTING TORCH + 25 FT HOSE

$39.99
Welders Welding Cap in Green Army Camo-100% Cotton Hat

$7.00
TIG MIG ARC WELD FILLET WELDING INSPECTION GAGE GAUGE

$20.50
Acetylene Pro-Line Torch Tip TURBO TORCH PL-8A

$61.25
MILLER BOBCAT 225D PLUS FRONT FACE PANEL / BEZEL, GC

$20.00
UNIWELD TORCH HANDLE TH-3 TURBO TORCH STYLE

$7.95
CYLINDER CART for large oxy & medium fuel gas cylinders

$45.00
STAINLESS TIG RODS

$40.00
TWECO 150L-10-3035 MIG GUN

$70.00
Smith Equipment Turbine Tip Assembly AF-11

$0.99
Airco cutting torch

$0.99
Mastercraft Wire Feed Arc Welder (7641M)

$99.99
Welding Hammer with Brush

$6.00
Miller Welding Helmet Auto Darkening Hood XLix Series

$150.00
50 FT Oxygen Acetylene Welding Retractable Reel w/ Hose

$59.99
Victor Welding Heat Nozzle 6-MFA-1, 0324-0110 NEW NR

$21.71
Lincoln Welders Historic Decal, Brand New 21" Decal

$6.99
Lincoln Electric Welders 7" Wall Thermometer, Brand New

$4.99
Acetylene Cutting Tip 3-1-101

$0.99
Acetylene Cutting Tip 1-1-101

$0.99
30 pieces 30/40 A plasma cutter consumables

$9.99
lincoln Electric ARC Welder AC-225

$177.50
NEW Solar Power Auto Darkening Welding Helmet ANSI

$29.99
Harris Oxygen Regulator Model #25-100

$21.49
18" Cutting Torch 90 Acetylene LP Fits Harris Tip New

$65.00
110 Amp ARC Home Hobby Professional Welder Tool NEW

$85.50
PUROX CW-202 ACETYLENE CUTTING TORCH

$29.99
millermatic300

$1800.00
30 pieces 30/40 A plasma cutter consumables

$9.99
Task Force Auto-Darkening Welding Helmet NR

$15.00
cutting torch guide

$6.00
LINCOLN ELE. 14 PIN CONTROL CABLE PLUGS, LN, 1-M, 1-F

$5.00
NEW CUTMASTER Acetylene Torch

$38.77
MILLER 14 PIN CONTROL CABLE W/ PLUG, 10 FT. 3 WIRE, GC

$10.00
TWECO SW315-4045 SUPRA WATER COOLED MIG GUN

$410.00
TWECO 400 AMP ELIMINATOR MIG GUN

$80.00
Acetylene Cutting Tip 00-1-101

$0.99
MILLER 14 PIN CONTROL CABLE PLUGS (3) FEMALE END, GC

$6.50
MILLER SPECTRUM 375 PLASMA CUTTER

$560.00
New UL Victor T Oxy/Acetylene Cutting Welding Torch Kit

$129.99
90 AMP FLUX CORE WIRE MIG WELDER FREE WELDING CART

$149.99
CFH /CO2 ARGON gas conversion welding Class V

$15.50
VICTOR WELDING TORCH GAUGE NEW IN BOX OXYGEN REGULATOR

$41.00
PUROX W-200 OXY-ACETYLENE CUTTING TORCH + PUROX #30 TIP

$29.99
Mig- welder 200 amp Industrial grade unit

$199.99
Lincoln Electric Welders Aluminum Reserve Parking Sign

$7.99
PUROX #33 OXY-ACETYLENE CUTTING TORCH + 12 FEET OF HOSE

$39.99
SEARS MODEL 313.54401 OXY-ACETYLENE CUTTING TORCH

$29.99
NEW Solar Power Auto Darkening Welding Helmet ANSI

$29.99
Acetylene Cutting Tip 4-1-101

$0.99
"Miller Killer"12" Welding Red & Black Decal, Brand New

$0.99
LOT OF 5 LINDE PUROX WELD TIPS * NEW

$32.87
CYLINDER TRUCK for light to medium duty

$20.00
7 WELDING TORCH TIP VICTOR 101 AIRCO 164-00 SMITH SC-12

$9.99
ThermalArc Thermal arc Welder Generator 3 Phase

$861.00
LINCOLN ELECTRIC WELD PRO MIG 180 WELDER WELDING NEW

$360.10
Speedglas 9002X Welding Helmet

$158.05
WELDING HELMET AUTO DARKENING MIG TIG ARC GAS WELDERS

$17.50
Acetylene Cutting Tip 3-1-101

$0.99
VOLT PLASMA CUTTER 40 AMP DUAL VOLTAGE ---- MUST SEE

$349.00
NEW MILLER WELDER EXTENSION CORDS REMOTE CONTROL LA-37

$69.50
NEW Oxy Acetylene Welding Cutting Torch Kit Fits Victor

$54.95
Miller Pro-Hobby Welding Helmet

$90.00
WESTERN WB102 HEAVY DUTY HOTSPOTTER

$47.82
New Oxy Acetylene Welding Torch Cutting Kit Fits Victor

$59.99
Victor Welding Heat Nozzle 6-MFA-1, 0324-0110 NEW NR

$19.05
vintage meco regulator brass gauges fittings welding ?

$0.99
Craftsman Single-stage Oxy-Acetylene Welding

$31.00
Victor cutting torch tip 3GPN

$3.50
MILLERMATIC 212 MIG WELDER # 907324

$1520.00
MIG 135 G FLUX MIG MAG WELDER LINCOLN COMPATIBLE 220 V

$209.99
Lincoln Magnum 100SG Spool Gun K2532-1

$180.00
Craftsman Cutting Attachment Torch Acetylene

$3.99
VICTOR 310C OXY-ACETYLENE CUTTING TORCH * T-781061

$39.99
Victor SR310 High Flow CO2 Flowmeter - SR 310

$195.00
Victor Acetylene Cutting Tip 1-1-101

$0.99
Acetylene Cutting Tip 2-1-101

$0.99
Tumbler / Roller Blaster 115 VAC Single Phase

$74.00
BERNARD 300 AMP MIG GUN 15FT LENGTH

$50.00
MILER WELDER COOLMATE 4 WATER COOLING SYSTEM 115 VOLT

$349.99
AR/CO2 gas conversion welding Class IV

$5.00
DUAL MIG WELDER 151 GAS / NO GAS 220v 120 amp NEW FLUX

$199.99
Oxygen regulator (Puritan Maid)

$19.99
Firepower FP18 Plasma Cutter 1/8" 110 Volt/ Compressor

$225.00
New MegaPower XP100 Amp Arc Welder Welding Kit Stick NR

$49.95
Acetylene Cutting Tip 1-1-101

$0.99
Acetylene Cutting Tip 4-1-101

$0.99
Acetylene Cutting Tip 1-1-101

$0.99
New Lincoln Electric Harris CUTWELDER 20591 Weld Cut

$109.99
VOLT PLASMA CUTTER 40 AMP DUAL VOLTAGE ---- MUST SEE

$245.15
HARRIS OXYGEN AND ACETYLENE REGULATOR SET,CUTTING,TORCH

$25.00
115V Electric Spot Welder 6.6KW 1/8" Welding Unit 115 V

$84.99
MILLER 14 PIN CONTROL CABLE W/ END, 10 FT. 6 WIRE, LN

$20.00
Torch Gauges, Regulators, 2 Sets, used, deal!

$12.87
Acetylene Pro-Line Torch Tip TURBO TORCH PL-8A

$61.25
Smith Equipment C-FLAME TIPAssembly CLP4

$0.99
Tig Torch 150 amp Air cooled

$58.00
WESTERN ENT.SIZE B FLASHBACK ARRESTOR SET,TORCH,CUTTING

$19.99