Education

ESAB Knowledge Center

Since Oscar Kjellberg's invention of the covered welding electrode in 1904, ESAB has played an integral part in the discovery and development of more commonly accepted welding processes than any other company.

ESAB's Knowledge Center contains a vast amount of information for the welder, the engineer, the welding inspector and the project manager.

An Introduction to Welding Inspection

Many characteristics of a weld can be evaluated during welding inspection, some relating to the welds size, and others relating to the presence of weld discontinuities. The size of a weld can be extremely important, as it can often relate directly to the weld's strength and associated performance, undersized weld's may not withstand stresses applied during service. Weld discontinuities can also be important. These are imperfections within or adjacent to the weld, which may or may not, dependent on their size and/or location, prevent the weld from meeting its intended performance. Typically these discontinuities, when of unacceptable size or location, are referred to as welding defects, and ...

Many characteristics of a weld can be evaluated during welding inspection, some relating to the welds size, and others relating to the presence of weld discontinuities. The size of a weld can be extremely important, as it can often relate directly to the weld's strength and associated performance, undersized weld's may not withstand stresses applied ...

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Can I Weld Aluminium to Steel?

Q: Can I weld aluminium to steel with the GMAW or GTAW welding process? 

A:  While aluminium can be joined to most other metals relatively easily by adhesive bonding or mechanical fastening, special techniques are required if it is to be arc welded to other metals such as steel. Very brittle intermetallic compounds are formed when metals such as steel, copper, magnesium or titanium are directly arc welded to aluminium. To avoid these brittle compounds, some special techniques have been developed to isolate the other metal from the molten aluminium during the arc welding process. The two most common methods of facilitating arc welding of aluminium to steel are bimetallic transition inserts ...

Q: Can I weld aluminium to steel with the GMAW or GTAW welding process? 

A:  While aluminium can be joined to most other metals relatively easily by adhesive bonding or mechanical fastening, special techniques are required if it is to be arc welded to other metals such as steel. Very brittle intermetallic compounds are formed when metals such ...

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Four Steps to Proper Nozzle Selection

Choose One-Piece or Two-Piece Nozzle: Acetylene - one-piece nozzle always. Other Fuel Gases - two-piece nozzle provides most efficient operation for normal cutting. One-piece nozzle extends life where heating is very severe. Choose Series: ANM, ANM-E, PNM, PNM-E, AFN nozzles. Elite 6 combination torch, DH Elite, and NM cutters. Choose Preheat Capacity: Choice of nozzle depends on preheat capacity. Steel coated with rust and scale, as well as bevel cutting, requires heavy preheat. Choose Size: Select size recommended for thickness of steel to be cut. Oversize nozzles waste gas. Use oxygen pressure recommended for nozzle. Nozzle Selection ANM PNM® Cutting Nozzles Hard drawn, electrolytic, ...

Choose One-Piece or Two-Piece Nozzle: Acetylene - one-piece nozzle always. Other Fuel Gases - two-piece nozzle provides most efficient operation for normal cutting. One-piece nozzle extends life where heating is very severe. Choose Series: ANM, ANM-E, PNM, PNM-E, AFN nozzles. Elite 6 combination torch, DH Elite, and NM cutters. Choose Preheat Capacity: ...

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How to Troubleshoot Plasma Cut Quality

Introduction Like any cutting process, there are a lot of variables that affect plasma cut quality. Some of these variables include:

Torch Type Torch Alignment Condition of consumables Arc Voltage, or cutting height Gas Type Gas Purity Gas Pressure and Flow Material Thickness Material Composition Surface Condition Cutting Amperage Nozzle orifice size Cutting speed (i.e. Machine travel rate) Most of these variables are interdependent, meaning that if you change one variable, it will affect the others. Figuring out how to fix cut quality issues can be difficult, so the following information was assembled to provide the usual solutions to some typical cut quality problems. ...

Introduction Like any cutting process, there are a lot of variables that affect plasma cut quality. Some of these variables include:

Torch Type Torch Alignment Condition of consumables Arc Voltage, or cutting height Gas Type Gas Purity Gas Pressure and Flow Material Thickness Material Composition Surface Condition Cutting Amperage Nozzle ...

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What Is The Best Way To Cut Steel Plate

Oxy-fuel, Plasma, Laser, or Waterjet There are many ways to cut mild steel plate, some of which are suited for automation some are not. Some are suited for thinner plate, some for thicker. Some are fast, some are slow. Some are low-cost, some expensive. And some are accurate, some are not. This article takes a quick look at the four primary methods used on CNC shape cutting machines, compares each processes strengths and weaknesses, and then gives a few criteria that can be used to decide which process is best for your application.

Oxy-Fuel Cutting Oxy-fuel torch cutting, or flame cutting, is by far the oldest cutting process that can be used on mild steel. It is generally viewed as ...

Oxy-fuel, Plasma, Laser, or Waterjet There are many ways to cut mild steel plate, some of which are suited for automation some are not. Some are suited for thinner plate, some for thicker. Some are fast, some are slow. Some are low-cost, some expensive. And some are accurate, some are not. This article takes a quick look at the four primary methods ...

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What is a CNC plasma cutter?

Why a CNC is used A plasma cutting torch is a commonly used tool for cutting metals for a wide variety of purposes. A hand-held plasma torch is an excellent tool for quickly cutting through sheet metal, metal plates, straps, bolts, pipes, etc. Hand-held plasma torches also make an excellent gouging tool, for back-gouging weld joints or removing defective welds. A hand torch can be used for cutting small shapes from steel plate, but it’s impossible to get good enough part accuracy or edge quality for most metal fabrication. That is why a CNC plasma is necessary.

A “CNC plasma” system is a machine that carries a plasma torch, and can move that torch in a path directed by a computer. The ...

Why a CNC is used A plasma cutting torch is a commonly used tool for cutting metals for a wide variety of purposes. A hand-held plasma torch is an excellent tool for quickly cutting through sheet metal, metal plates, straps, bolts, pipes, etc. Hand-held plasma torches also make an excellent gouging tool, for back-gouging weld joints or removing defective ...

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Training

At ESAB, we believe we can only achieve excellence by supporting our products and services with top quality training. Our training programs include a range of options, all of which offer opportunities to increase machine knowledge, safe operating techniques, and maximise machine productivity. Our course offerings combine instructor-led training with hands-on learning, as well as customised programs, for equipment operators and service technicians. ESAB's modern training facilities offer the best possible training environment using state of the art computer technology.

For course overviews and details on training sessions offered, check out our training calendar.


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