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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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MILLER SPECTRUM 375 X-TREME PLASMA CUTTER # 907303

$1160.00
Ironclad Heatworx 600 Welding Gloves Iron Clad

$45.95
JW Harris 1lb 3/64" (.047) MIG Wire 5356 Aluminum Alloy

$10.93
Arc Welding Machine M105-2

$152.50
MILLERMATIC 350P MIG WELDER #907300

$3475.00
MILLERMATIC 212 MIG WELDER- 3035 SPOOLGUN 951068

$2045.00
Harris Machine Cutting Torch Model # 98-6TAFR

$76.00
MILLERMATIC 212 MIG & SPOOLMATE 3035

$1939.00
MILLERMATIC DVI-2 MIG WELDER # 907323

$1229.00
Weldmark 70S-6 Copper Coated MIG Wire .030" 2# Spool

$13.04
MILLERMATIC 180 w/AUTOSET /907312 & SPOOLMATE 100

$923.00
MILLERMATIC 180 w/AUTOSET /907312 & SPOOLMATE 100

$923.00
MILLERMATIC 252 MIG WELDER NEW 907321

$1921.00
MILLERMATIC DVI2 MIG WELDER & 3035 SPOOLGUN PKG 951067

$1805.00
MILLERMATIC PASSPORT PLUS MIG WELDER 907401

$1475.00
Millermatic 140 MIG Welder w/Cart, MIL 907311011, New!!

$696.00
MIG FLUX WELDER ETL Approved NEW

$149.95
MILLERMATIC 350 MIG WELDER # 907299

$3325.00
MILLERMATIC 180 AUTOSET MIG WELDER & CART # 907312011

$802.00
Leather Welding Bib (for Cape Sleeve) - 20 in.

$13.92
Millermatic 140 MIG Welder w/Auto-Set ,MIL907335, New!

$635.00
Leather Welding Bib (for Cape Sleeve) - 14 in.

$11.15
MILLERMATIC PASSPORT PLUS MIG & SPOOLMATE 100 907401

$1745.00
Harris Cutting Torch Model # 62-5FL 21"

$51.00
MILLERMATIC DVI2 MIG WELDER & 3035 SPOOLGUN PKG 951067

$1805.00
MILLERMATIC 350P MIG WELDER w/25' XR-Aluma-Pro Gun

$5137.00
MILLERMATIC 140 MIG-CART AUTOSET 907335011

$676.00
Tig Torch Cover 12.5 ft

$1.00
MILLERMATIC PASSPORT PLUS & SPOOLMATE 100

$1655.00
Weldmark 70S-6 Copper Coated MIG Wire .023" 2# Spool

$14.20
ARC WELDER 100 Amp 110V NEW

$59.95
HOBART HANDLER 125, 130, 140, 175, 180, 210 COVER 19518

$42.75
JW Harris 1 lb .035" MIG Wire 5356 Aluminum Alloy

$11.18
MILLERMATIC 212 MIG WELDER- 3035 SPOOLGUN 951068

$2045.00
Arc Welding Machine M105-2

$153.51
Sellstrom Auto-Darkening Titan Helmet American

$149.61
MILLERMATIC 140 MIG WELDER AUTOSET # 907335

$634.00
MILLERMATIC 212 MIG-3035 SPOOLGUN 951068

$2045.00
Marquette All Purpose Metal Brazing Flux 1 lb.

$4.75
MILLER SPECTRUM 375 PLASMA CUTTER 903891

$1090.00
BodyGlove Safety Specs, Polarized Brown Lens

$40.25
Miller FS-10 Auto-Darkening Helmet Fixed Shade #10

$95.00
MILLERMATIC PASSPORT PLUS MIG 907401 & EXTRA CYLINDER

$1525.00
MILLERMATIC PASSPORT PLUS MIG & SPOOLMATE 100 907401

$1655.00
Tourmaline Beads (natural) 5mm rondelle 16-inch strand

$7.43
JW Harris 1lb 3/64" (.047) MIG Wire 5356 Aluminum Alloy

$10.93
MILLERMATIC 140 AS MIG/CART/SPOOLMATE 100

$905.00
MILLERMATIC 180 w/AUTOSET & SPOOLMATE 100

$923.00
Oxygen Acetylene Gas Cutting & Welding Torch Kit

$84.99
MILLERMATIC 180 AS MIG /CART & SPOOLMATE 100

$1022.00
MILLERMATIC 212 MIG & SPOOLMATE 3035

$1939.00
MILLERMATIC 212 MIG WELDER # 907324

$1472.00
MILLERMATIC 140 MIG/CART/SPOOLMATE 100

$889.00
10ft MIG gun for Century 140A MIG, 880-584-000 (NEW)

$219.65
Houston Astros Welding Beanie NEW,Reversable Handmade!!

$5.25
MILLERMATIC 212 MIG WELDER # 907324

$1472.00
MILLERMATIC 350P MIG WELDER w/25' XR-Aluma-Pro Gun

$5137.00
Ezee Roll Cylinder Cart 5084, 8" Poly max cyl dia 17"

$118.65
MILLERMATIC PASSPORT PLUS & SPOOLMATE 100

$1655.00
MILLER SPECTRUM 125C PLASMA CUTTER NEW # 907149

$856.00
MILLERMATIC 180 AS MIG /CART & SPOOLMATE 100

$1022.00
MILLERMATIC PASSPORT PLUS MIG & SPOOLMATE 100 907401

$1655.00
MILLERMATIC 140 MIG WELDER # 907311

$580.00
MILLERMATIC 140 MIG-CART AUTOSET 907335011

$725.00
MILLERMATIC 252 MIG WELDER NEW 907321

$1921.00
Millermatic 140 MIG Welder w/Auto-Set ,MIL907335, New!

$635.00
MILLERMATIC 140 MIG AS & SPOOLMATE 100

$828.00
MILLERMATIC DVI2 MIG WELDER # 907323

$1229.00
JW Harris 1/16"x36 TIG Wire 4043 Aluminum Alloy, 10lbs.

$46.93
MILLERMATIC 140 MIG WELDER # 907311

$580.00
MILLERMATIC 252 MIG WELDER & 30A SPOOLGUN 951066

$2995.00
Millermatic 180 MIG Welder w/AS, MIL 907312, New!!

$775.00
MILLERMATIC 180 AUTOSET MIG WELDER & CART # 907312011

$802.00
BodyGlove Safety Specs, Polarized Grey Lens

$40.25
Weldex Projection Welders, Used Welder 12" Throat

$1500.00
MILLERMATIC 212 MIG-3035 SPOOLGUN 951068

$2045.00
ER70S-6 Mild Steel Mig Welding Wire 11 lbs .035

$14.50
MILLERMATIC 350P MIG WELDER #907300

$3475.00
MILLERMATIC DVI2 MIG WELDER # 907323

$1229.00
MILLERMATIC 140 MIG & SPOOLMATE 100

$769.00
Lock Jaw Pliers 10" Curved Jaw 10100

$14.54
MILLER SPECTRUM 125C PLASMA CUTTER 907149 & EXTRA TIPS

$915.00
WELDING SAFETY JACKET MEDIUM - NEW!

$5.99
MILLERMATIC 210,212 ,DVI,252, 250, 251, 350,350P COVER

$110.00
MILLERMATIC 140 MIG-CART AUTOSET 907335011

$676.00
MILLERMATIC 180 w/AUTOSET & SPOOLMATE 100

$923.00
MILLERMATIC PASSPORT PLUS MIG WELDER 907401

$1475.00
New Contour Knee Pad with Gelpact; One Size Fits All!!

$43.38
MILLERMATIC DVI-2 MIG WELDER # 907323

$1229.00
Lincoln K530-5 Magnum 100L Gun 10 ft 035-045 (NEW)

$105.83
Alumaloy Rods Aluminum Repair Rods NO WELDING (3/4LB)

$19.45
Florida Gators Welding Beanie NEW,Reversable Handmade!!

$5.25
Cyclomatic Auto Interface for Welder

$54.00
MILLERMATIC PASSPORT PLUS MIG & SPOOLMATE 100 907401

$1745.00
MILLERMATIC PASSPORT PLUS MIG 907401 & EXTRA CYLINDER

$1525.00
MILLERMATIC 140 MIG WELDER AUTOSET # 907335

$634.00
Welding Helmet- Hawk Tradesman- no lens

$1.00
MILLERMATIC 140 MIG-CART AUTOSET 907335011

$725.00
MILLERMATIC 252 MIG WELDER & 30A SPOOLGUN 951066

$2995.00
THERMAL DYNAMICS PLASMA CUTTER 200/220 VOLT 3 PHASE

$1599.00