Plasma Arc Welding

2 January 2011

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How does welding work?

how does a MIG Weld work?
how does a Arc or Stick weld work?
how does an Oxy Acetylene weld work?
How does the plasma cutter work?

A MIG welder (Metal – Inert Gas) passes a current through a continuously fed solid core wire which strikes an arc against the substrate. The wire feed gun head floods the wire end with an inert gas such as Argon to shield the weld area. The arc melts the wire and heats the substrate forming a welding puddle which the welder advances to build a finished weld.

Arc/Stick welding uses a fixed rod which is coated in a solid flux to strike an arc with the substrate. The heat of the arc melts the flux agent which floats on the top of the weld puddle shielding it from oxygen. The welder advances the stick and puddle to build the finished weld.

Oxy Acetylene welding uses a neutral flame formed by combusting Acetylene gas wth Oxygen. A flame of about 6000degF is formed. The heat of the flame melts the substrate and forms a puddle which fills the weld gap forming a finished weld. A welder can add a filler rod if needed to improve weld quality.

A plasma cutter forms an arc in a nozzle which heats a high speed pressurized stream of inert gas, often Nitrogen or Argon, ( occasionally non-inert Oxygen) which impinges on a workpiece. The imense heat of the plasma (15,000 degC typical) melts and oxidizes the substrate and blows the debris clear of the work.

Astrobuf


Welder's Handbook, RevisedHP1513: A Guide to Plasma Cutting, Oxyacetylene, ARC, MIG and TIG Welding


Welder’s Handbook, RevisedHP1513: A Guide to Plasma Cutting, Oxyacetylene, ARC, MIG and TIG Welding


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A newly-updated, state-of-the-art guide to MIG and TIG arc welding technology. Written by a noted authority in the field, this revised edition of HP’s bestselling automotive book-for over 20 years-is a detailed, instructional manual on the theory, technique, equipment, and proper procedures of metal inert gas (MIG) and tungsten inert gas (TIG) welding….

The Haynes Welding Manual


The Haynes Welding Manual


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One of the most popular editions in Haynes’ Techbook Series provides comprehensive coverage of the latest equipment and techniques for home DIY enthusiasts and shop pros….

Welder's Handbook: A Complete Guide to MIG, TIG, Arc & Oxyacetylene Welding


Welder’s Handbook: A Complete Guide to MIG, TIG, Arc & Oxyacetylene Welding


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Finch has updated and revised his classic handbook with the latest information available on welding, brazing, and cutting; equipment and safety; fitting and jigging; gas welding, cutting, brazing, and soldering; arc, MIG and TIG welding; plasma cutting; and more….







Antra AH6-360-0012 Wide Shade Range 4/5-9/9-13 Large Viewing Size 3.78X2.07 Solar Power Auto Darkening Welding Helmet with AntFi360 with Grinding Feature Extra lens covers Good for Arc Tig Mig Plasma CSA / ANSI Certified By Colts Lab


Antra AH6-360-0012 Wide Shade Range 4/5-9/9-13 Large Viewing Size 3.78X2.07 Solar Power Auto Darkening Welding Helmet with AntFi360 with Grinding Feature Extra lens covers Good for Arc Tig Mig Plasma CSA / ANSI Certified By Colts Lab


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Antra AH4-660-101S Wide Shade Range 4/5-9/9-13 Large Viewing Size 3.78X2.5 Solar Power Auto Darkening Welding Helmet with AntFi X60-6 with Grinding Feature Extra lens cover Good for Arc Tig Mig Plasma ANSI Certified By Colts Lab


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MIG TIG Plasma Cutter Arc Welding Cart with Tank Storage


MIG TIG Plasma Cutter Arc Welding Cart with Tank Storage


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This heavy duty MIG welding cart features: 3 Shelves for easy access to supplies, 18″ x 10.5″ top deck, Holds 9 1/2″-Diameter tank, Industrial powder coating resists chips and rust, Built in cylinder rack and storage tray, Heavy duty casters; 2 fixed and two swivel, Cart measures 28″-L x 12″-W x 28″-H,100 lb. weight capacity…

Goplus MIG TIG ARC Welder Welding Cart Plasma Cutter Universal Storage for Tanks


Goplus MIG TIG ARC Welder Welding Cart Plasma Cutter Universal Storage for Tanks


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Description:
This welding cart is the perfect addition to any MIG welder or plasma cutter. It is all steel construction with a durable finish for years of use. Two safety chains secure shielding gas tanks when used with a MIG welder. The cart includes an additional storage tray for accessories and equipment and there are lead hooks on both sides for cable management. Fits most manufacturers MIG we…

Everlast SuperCut 50P PILOT ARC 110v/220v Inverter plasma cutter 50AMP Cutting System


Everlast SuperCut 50P PILOT ARC 110v/220v Inverter plasma cutter 50AMP Cutting System


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Easy starting with Pilot arc allows easy cutting of rusty and painted metals.
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CT-312 TIG120+ARC120+CUT30 TIG/MMA/plasma cutter 3in1


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