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Manufacturing & Metal Working

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 SP 140T MIG WELDER PKG K2688-1

$510.87
ESAB MULTIMASTER 260 MIG & TIG WELDER 0558001520

$2596.87
LINCOLN SP100T MIG WELDER REFURBISHED 120V U1474-2 REF

$399.87
Jackson Halo X SPEED 3016333 Helmet Shade 10

$49.95
HOBART AIRFORCE 250CI PLASMA CUTTER 120V 500534 NEW

$876.77
ESAB MIGMASTER 173 MIG WELDER PKG 0558005173

$899.87
Jackson HELLRAISER Welding Helmet SHADE 10

$48.55
MILLER MILLERMATIC 140 MIG WELDER PKG W/CART 907311011

$694.77
MILLER CONTACT TIPS 000-069 .045"- QTY/25 - NEW

$9.95
Jackson Razor Safety Cap - 3011943 - NEW

$21.95
Lincoln SUPERGLAZE 4043 1# SPOOL .035 - ED030308 -NEW

$5.99
THERMAL DYNAMICS CUTMASTER 101 PLASMA CUTTER 1-1320-1

$2072.87
LINCOLN POWER MIG 255XT MIG WELDER PKG K2701-1

$2083.87
MILLER MAXSTAR 150 S STICK WELDER WITH X-CASE 907134012

$862.77
Jackson Western Outlaw Hard Hat -BLACK - NEW

$24.95
THERMAL DYNAMICS CUTMASTER 102 PLASMA CUTTER 1-1330-1

$2469.77
Jackson HellRaiser Welding Helmet- w/NEXGEN EQC AUTO

$264.75
MILLER DYNASTY 200DX AC/DC TIG WELDER W/FC-KIT NEW

$3497.77
MILLER 000068 .035 CONTACT TIPS- QTY/25 - NEW

$9.95
LINCOLN K664-2 ALUMINUM WELDING KIT - NEW

$55.95
MILLER PERFORMANCE FIRE BALL WELDING HELMET 234514

$208.77
MILLER PERFORMANCE FIRE STORM WELDING HELMET 232038

$208.77
THERMAL ARC AM 200 AC/DC TIG STICK WELDER 10-3083A-1

$2373.87
MILLER DIGITAL ELITE VINTAGE USA WELDING HELMET 236340

$310.77
LOT OF 9: 25LB ARROW WELDING MAGNETS WELDER SUPPLY NEW

$10.35
WELDTEC TIG COOLER KIT for miller CSK2.5-1SH

$582.87
VICTOR JOURNEYMAN WELDING & CUTTING KIT 0384-2011

$536.87
LINCOLN K549-4 Innershield Welding Kit (.045) - NEW

$58.75
Jackson Hellraiser Safety Cap - 3004888 - NEW

$21.95
MAGNIFY 2 X 4.25 CHEATER LENS 2.25 DIOPTER PLASTIC-NEW

$4.99
MILLER DIGITAL ELITE BLACK WELDING HELMET 234763

$286.77
PATRIOT VISION XTREME 5X4 VARIABLE WELDING HELMET-NEW

$235.95
MILLER ELITE AUTO WELDING HELMET LUCKY'S SS 237744

$263.77
Jackson HellRaiser Welding Helmet- w/NEXGEN EQC AUTO

$264.75
MILLER PRO-HOBBY EAGLE II WELDING HELMET 231405

$149.77
NEW Oxy Acetylene Welding Cutting Torch Kit Fits Victor

$54.95
Jackson HELLRAISER Welding Helmet SHADE 10

$48.55
Jackson Arctic Auto-Darkening Welding Helmet - Halo X

$198.95
ELECTRIC WELDER MACHINE FLUX WIRE MIG 100 NO GAS

$109.99
HORNELL SPEEDGLAS 9002V AUTO WELDING HELMET 04001231

$248.87
MILLER SPECTRUM 375 X-TREME PLASMA CUTTER 907339 NEW

$1188.77
MILLER MILLERMATIC 140 MIG WELDING PKG 907311

$618.77
MILLER DIGITAL ELITE INFERNO WELDING HELMET 234761

$310.77
Jackson Hellraiser Safety Cap - 3004888 - NEW

$21.95
HOBART HANDLER 210 MIG WELDER 500526

$853.77
Jackson Western Outlaw Hard Hat -BLACK - NEW

$24.95
MILLER PRO-HOBBY SERIES BLACK WELDING HELMET 231404

$132.77
MAGNIFY 2 X 4.25 CHEATER LENS 2.00 DIOPTER PLASTIC-NEW

$4.99
MAGNIFY 2 X 4.25 CHEATER LENS 1.50 DIOPTER PLASTIC-NEW

$4.99
MILLER ELITE AUTO WELDING HELMET "UA" 229364

$263.77
MAGNIFY 2 X 4.25 CHEATER LENS 1.00 DIOPTER PLASTIC-NEW

$4.99
LINCOLN MAGNUM 100SG SPOOLGUN K2532-1 NEW

$198.87
VICTOR FIREPOWER WELDING & CUTTING 0384-2550

$152.87
MILLER SYNCROWAVE 200 RUNNER 907308011 NEW

$2098.77
MILLER 300416 PREMIUM SMALL MIG OR PLASMA CART

$134.00
PUROX TORCH TIPS 4202-5 - QTY/2 - NEW

$14.99
MILLER PERFORMANCE BLUE FLAME WELDING HELMET 236341

$208.77
New ProForge Carbon Fiber Auto Darkening Welding Helmet

$99.99
MILLER DIGITAL ELITE JOKER WELDING HELMET 235041

$310.77
Jackson Hellraiser Auto-Darkening Welding Helmet - NEW

$179.95
US NAVY LEATHER WELDERS WELDING METAL WORKING GLOVES

$4.95
MILLERMATIC 212 MIG WELDER WITH 3035 SPOOLGUN 951068

$2139.77
Black Stallion Xtreme BSX FIRERAG™ FR DOO RAG by Revco

$4.95
LINCOLN K2377-1 CANVAS COVER FOR 140C & 180C -NEW

$32.99
JACKSON NEXGEN WELDING HELMET 0744-0705 VARIABLE SH NEW

$239.99
JACKSON HALO X YELLOW FLAMES Welding Helmet-SH10-NEW

$49.95
JACKSON NEXGEN WELDING HELMET 0744-0705 VARIABLE SH NEW

$239.99
ESAB MIGMASTER 250 MIG WELDER PKG 604561

$1778.87
PUROX TORCH TIPS 4202-4 - QTY/2 - NEW

$14.99
LINCOLN POWER MIG 180C MIG WELDER PKG K2473-1 W/CART

$863.87
MILLER MILLERMATIC 180 MIG WELDING PKG w/cart 907312011

$839.77
Jackson Hellraiser Auto-Darkening Welding Helmet - NEW

$179.95
Jackson Razor Safety Cap - 3011943 - NEW

$21.95
LINCOLN K663-2 ALUMINUM WELDING KIT - NEW

$53.95
LINCOLN PRECISION TIG 225 K2535-1 READY-PAK

$1883.87
MILLER PRO-HOBBY SERIES CAMOU WELDING HELMET 231407

$149.77
LINCOLN POWER MIG 215XT MIG WELDER PKG K2700-1

$1553.87
THERMAL DYNAMICS CUTMASTER 39 PLASMA CUTTER 1-3830 NEW

$998.87
JACKSON HALO X YELLOW FLAMES Welding Helmet-SH10-NEW

$49.95
LINCOLN POWER MIG 215 MIG WELDER PKG K2326-1 NEW

$1418.87
LINCOLN SP 180T MIG WELDER PKG K2689-1

$639.87
MILLER CONTACT TIP 135430 .035 - QTY/25 - NEW

$14.95
LINCOLN RANGER 305G WELDER GENERATOR K1726-4

$3824.87
Pearson CTR-6S Cylinder Cart - NEW

$59.95
MILLER ELITE AUTO WELDING HELMET JOKER 227187

$263.77
MILLER MAXSTAR 150 STH TIG WELDER PACKAGE 907136017

$1691.77
Smiths welding cutting torch set w/ rosebud Victor

$12.34
MILLER CONTACT TIPS 135-424 3/64"- QTY/25 - NEW

$14.95
MAGNIFY 2 X 4.25 CHEATER LENS 2.50 DIOPTER PLASTIC-NEW

$4.99
PUROX TORCH TIPS 4202-3 - QTY/2 - NEW

$14.99
SIMADRE 416D- 40A Plasma Cutter/160A Tig/150 Arc Welder

$549.00
Contact Tips .035 STD Duty 11-35 (Bag of 25)

$6.00
Jackson Halo X SPEED 3016333 Helmet Shade 10

$49.95
THERMAL DYNAMICS CUTMASTER 52 PLASMA CUTTER 1-5130- 1

$1478.77
MAGNIFY 2 X 4.25 CHEATER LENS 1.75 DIOPTER PLASTIC-NEW

$4.99
MC ACETYLENE WELDING CYLINDER (10CF) - NEW

$57.75
LINCOLN SP135T MIG WELDER REFURBISHED 120V U1873-1 REF

$449.87
MILLER MAXSTAR 150 STL TIG WELDER W/CASE 907135016

$1218.77
LINCOLN POWER MIG 140C MIG WELDER W/CART K2471-1 NEW

$721.87
FLUX WIRE WELDER DUAL MIG 131 GAS AND NO GAS

$184.99