Metals/Materials Articles

The metals/materials technology area has information on the most commonly used materials in metal fabrication ̶ carbon steels; stainless steels; high-strength, low-alloy steels (HSLAs); and the 6000 series aluminum ̶ and those that aren't as common, such as the red metals, refractory metals, titanium, and magnesium.

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Fabricating the future, layer by layer

October 20, 2014

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Additive manufacturing is changing fundamental concepts of design, engineering, and production. As part of this, metal additive processes, including powder bed fusion and directed energy deposition, are allowing industry to fabricate metal products in entirely new ways.

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Consumables Corner: The reasons for and misconceptions about preheating steel

June 10, 2014

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Q: We are expanding our job shop and adding the capability to work with much heavier structures, including considerably thicker materials. Some of these jobs specify high-strength materials and preheating. Some of our welders claim preheating is performed to remove water from the steel. Can you...

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crimped wire

The basics of crimped wire

January 30, 2014

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Precrimped woven wire mesh is a smaller part of the metal fabrication world, but it does have a significant presence in some industrial applications. This overview explains just how the mesh is created and gives metal fabricators an idea of the basic crimp styles that are available.

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Die materials and wear in stamping AHSS, Part III - TheFabricator.com

Die materials and wear in stamping AHSS, Part III

December 12, 2013

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Editor’s Note: This article is Part III of a three-part series that reviews the die materials and die coatings used in forming AHSS. Part I, which appeared in the January/February issue, discussed the relationship between process conditions and tool failure mechanisms. Part II appeared in...

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Precrimped woven wire mesh

The wire crimping process

October 22, 2013

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Mesh wire comes in many forms that can be used in diverse industrial applications. This article presents an overview of different types, how they are made, and possible uses.

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Corrosion mechanisms, processes - TheFabricator.com

Corrosion mechanisms, processes

October 7, 2013

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Applying a corrosion prevention product to steel isn’t enough. If the workpiece is contaminated with something as minor as fingerprints or steel fines, corrosion can get a foothold. Understanding the components that make up a corrosion cell, and how a corrosion cell works, is necessary in learning how to prevent corrosion from getting a start.

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Defending boiler components against corrosive and erosive attack - TheFabricator.com

Defending boiler components against corrosive and erosive attack

September 5, 2013

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Maintaining a boiler system can be very expensive and require a lot of downtime for the equipment. The electric arc wire thermal spray process is one efficient way to create a protective overlay on boiler components and systems, helping to reduce replacement costs and outage times.

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Free-machining steels

You can machine it, but can you weld it?

October 8, 2012

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Free-machining steels shouldn’t be welded. If a fabricator has a job requiring a free-machining steel, engineers and fabricators should get together to determine the best action. Can welding be avoided by using fasteners? If not, which weldable materials exhibit acceptable machining characteristics, and do these materials meet design requirements?

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Welding CrMo material

Use and weldability of high-chromium molybdenum steels

September 10, 2012

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At least a dozen chromium molybdenum (CrMo) steel combinations exist. One of the more recent alloys consists of chromium, molybdenum, vanadium, niobium (columbium), and nitrogen. Beginning sometime in the 1970s, this material became popular for use in high-temperature applications, such as gas and...

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Chromium molybdenum—its uses and fabrication requirements - TheFabricator.com

Chromium molybdenum—its uses and fabrication requirements

July 9, 2012

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Chromium molybdenum alloys have characteristics that make them good choices for many products used in construction and manufacturing. This article discusses some applications for these materials and the processes and equipment necessary to complete them.

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Metallury for welders - TheFabricator.com

Metallurgy for welders

May 25, 2012

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The goal when welding any material is to change its microstructure as little as possible and to preserve its mechanical and chemical properties. To achieve this you must be able to determine its weldability, control the heat input, and prevent rapid cooling.

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Enhancing the surface to combat equipment wear - TheFabricator.com

Enhancing the surface to combat equipment wear

May 8, 2012

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Equipment wears as it’s used, particularly in heavy applications such as extracting natural resources from the earth. Surface welding used to repair and strengthen equipment helps prevent costly downtime.

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Scrubber

The many faces of stainless steel

March 5, 2012

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Stainless steel comes in various forms—austenitic, martensitic, and ferritic. Which type you use depends on your application requirements.

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Better bonding: A thermal spray primer - TheFabricator.com

Better bonding: A thermal spray primer

February 28, 2012

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From electric arc wire spray to HVOF technology, various thermal spray process options provide durability and protection against wear and corrosion in myriad applications.

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New River Gorge Bridge

Building bridges

January 9, 2012

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Some fabricators and educators are fascinated by bridges. Bridges come in many different types, and diverse materials are used to build them.

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