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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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STRONG HAND ADJUST-O MAGNET SQUARE - MSA45 - NEW
$16.95
LINCOLN SP-140T WIRE FEED WELDER- RECONDITIONED
$489.75
Jackson Razor Safety Cap - 3011943 - NEW
$21.95
LINCOLN K549-4 Innershield Welding Kit (.045) - NEW
$58.75
Revco Black Stallion Leather Welding Jacket-30WC-NEW-2X
$64.95
SHADE 12 4.5"x5.25" GOLD WELDING HELMET LENS-NEW
$8.49
PUROX TORCH TIPS 4202-4 - QTY/2 - NEW
$14.99
Jackson Next Generation Auto Darkening Welding Helmet
$30.99
NEW Oxy Acetylene Welding Cutting Torch Kit Fits Victor
$59.95
NEW Auto Darkening Welding Helmet ANSI Solar Powered
$29.98
Revco BSX Stryker FR BLUE Jacket - XL
$21.95
PUROX TORCH TIPS 4202-7 - QTY/2 - NEW
$14.99
Python Red Fusion Auto-Dark Welding Helmet-Var SH9-13
$219.99
Revco BSX Stryker FR Jacket - Large
$21.95
Revco BSX Stryker FR Jacket - MEDIUM
$21.95
LINCOLN POWER MIG 140C WIRE FEED WELDER- K2471-1 - NEW
$627.75
LINCOLN SP-180T WIRE FEED WELDER- K2689-1 RECONDITIONED
$619.95
MOTOR GUARD M-60 1/2" .01 MICRON FINAL FILTER ~ NIB
$54.99
TWO HOLE FLANGE ALIGNMENT PINS
$24.95
80 amp inverter ARC Welder
$99.90
LINCOLN POWER MIG 140C WIRE FEED WELDER- K2471-1 w/CART
$738.75
Lincoln Innershield Kit for SP135 & SP175 K549-1
$52.95
Python Green Fusion Auto-Dark Welding Helmet-Var SH9-13
$369.99
MIG Welding Wire E70S6 .035 Full Skid
$2323.20
Python Blue Fusion Auto-Dark Welding Helmet-Var SH9-13
$369.99
MIG Welder and Accesories
$1200.00
MC ACETYLENE WELDING CYLINDER (10CF) - NEW
$57.75
MAGNIFY 2 X 4.25 CHEATER LENS 2.00 DIOPTER PLASTIC-NEW
$4.99
Revco 9 oz. FR and Cowhide Welding Coat - 30" XL
$34.95
LINCOLN K663-2 ALUMINUM WELDING KIT - NEW
$53.95
LINCOLN SP-180T WIRE FEED WELDER- K2689-1 - NEW
$639.75
ACE MODEL 44 SPOT WELDER 3" GAP 7" THROAT 240VOLT
$49.00
Revco Black Stallion Leather Welding Jacket-30WC-NEW-4X
$84.95
Revco 9 oz. FR and Cowhide Welding Coat - 30" 2XL
$37.95
Lincoln Welder SA 200 Red Face
$1250.00
Welding Leather Long Apron 24" x 36" with Kevlar thread
$17.00
MAGNIFY 2 X 4.25 CHEATER LENS 2.25 DIOPTER PLASTIC-NEW
$4.99
HARRIS 45% SAFTY-SILV BRAZING WIRE WITH STAY-SILV FLUX
$50.00
MILLER CONTACT TIPS 000-069 .045"- QTY/25 - NEW
$9.95
Welding leads LC-40
$0.99
Jackson Shadow Welding Helmet - BLACK 0744-0504
$33.75
JACKSON NEXGEN WELDING HELMET 0744-0705 VARIABLE SH NEW
$238.75
Python Blue Fusion Auto-Dark Welding Helmet-Var SH9-13
$219.99
ROD GUARD 14" CANNISTER - WELDING ELECTRODES
$6.25
Jackson Arctic Auto-Darkening Welding Helmet - Halo X
$198.95
MAGNIFY 2 X 4.25 CHEATER LENS 1.00 DIOPTER PLASTIC-NEW
$4.99
PUROX TORCH TIPS 4202-3 - QTY/2 - NEW
$14.99
WELDMARK ARGON FLOWGAUGE PART# AF150-580 REGULATOR
$59.00
Lincoln SUPERGLAZE 4043 1# SPOOL .035 - ED030308 -NEW
$5.99
Revco Black Stallion Leather Welding Jacket-30WC-NEW-XL
$59.95
Japanese Industrial Robots, Welders, Manipulators
$200000.00
SHADE 11 4.5"x5.25" GOLD WELDING HELMET LENS-NEW
$8.49
Lincoln Weldanpower 125 Welder Generator K1444-4
$1725.00
STEINER DELUXE WELDING GLOVES - 2 PAIR - RED
$21.95
SPEEDGLAS 9000X OR 9002X CLEAR OUTSIDE LENS 04-0270-00
$12.95
Regulator Flash Back Arrestors (oxy & acet)
$42.00
SHADE 13 4.5"x5.25" GLASS WELDING HELMET LENS-NEW
$2.75
Tig Welding Torch end piece+ spare tungsten rods
$8.99
PUROX TORCH TIPS 4202-5 - QTY/2 - NEW
$14.99
Python Green Fusion Auto-Dark Welding Helmet-Var SH9-13
$219.99
MAGNIFY 2 X 4.25 CHEATER LENS 1.50 DIOPTER PLASTIC-NEW
$4.99
MAGNIFY 2 X 4.25 CHEATER LENS 2.50 DIOPTER PLASTIC-NEW
$4.99
SHADE 10 4.5"x5.25" GOLD WELDING HELMET LENS-NEW
$8.49
Oxy Acetylene Welding Cutting Torch Kit Fits Victor New
$59.99
PATRIOT VISION XTREME 5X4 VARIABLE WELDING HELMET-NEW
$235.95
Revco BSX Stryker FR BLUE Jacket -LARGE
$21.95
LINCOLN K2377-1 CANVAS COVER FOR 140C & 180C -NEW
$32.99
Auto-Helm Pro-Series Auto-Darkening Welding Helmets New
$79.00
SHADE 11 4.5"x5.25" GLASS WELDING HELMET LENS-NEW
$2.75
12 Pc. set of Super Heavy Duty Box & Open end Wrenches
$40.00
2 Pr Welder Gloves Wood Stove Welding Glove + FREE $24
$5.99
Jackson Western Outlaw Hard Hat -BLACK - NEW
$24.95
LINCOLN K664-2 ALUMINUM WELDING KIT - NEW
$55.95
Revco 9 oz. FR and Cowhide Welding Coat - 30" L
$34.95
40A New Plasma Cutter CUT40 Inverter 220V Voltage
$0.99
UNI-SPOTTER Stinger 5500 Plus Stud Welder Kit w case
$149.99
PUROX TORCH TIPS 4202-9 - QTY/2 - NEW
$14.99
MILLER CONTACT TIPS 135-424 3/64"- QTY/25 - NEW
$14.95
Lincoln Power Arc 5500 Welder Generator K1429-8
$1595.00
STRONG HAND ADJUST-O DUAL SWITCH MAGNET SQUARE - MS2-90
$109.95
Python Red Fusion Auto-Dark Welding Helmet-Var SH9-13
$369.99
Oxygen Tank Welding Bottle
$13.50
MAGNIFY 2 X 4.25 CHEATER LENS 1.75 DIOPTER PLASTIC-NEW
$4.99
Revco Black Stallion Leather Welding Jacket-30WC-NEW-L
$59.95
Clarke Weld 95 E Arc Electric Steel Welder
$45.00
PALMGREN WELD GAUGE
$19.99
Revco BSX Stryker FR Jacket - 2XL
$24.95
Tig Welding Torch ceramic nozzles BNIB
$9.99
Tweco Power Cords for Miller- Lincoln Welders New
$9.99
NEW Solar Power Auto Darkening Welding Helmet ANSI
$29.99
LINCOLN MAGNUM 100SG SPOOLGUN K2532-1 NEW
$183.75
SHADE 10 4.5"x5.25" GLASS WELDING HELMET LENS-NEW
$2.75
Revco BSX Stryker FR Jacket - XL
$21.95
MILLER 000068 .035 CONTACT TIPS- QTY/25 - NEW
$9.95
SPEEDGLAS 9000X OR 9002X CLEAR INSIDE LENS 04-0280-00
$5.00
MILLER CONTACT TIP 135430 .035 - QTY/25 - NEW
$14.95
ACETYLENE REGULATOR TRI-SAFE MODEL II
$30.00
ANCHOR SOAPSTONE MARKING WELDING SOLDER 144 PCS. in BOX
$9.99