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.
August 15, 2016 | By Bill Frahm
If a person in metal forming or fabricating understands the basics of metal properties and how that metal is formed to meet quality expectations, he or she shouldn’t have a problem keeping up with the rapid advancements in material development and machine tool technology.
Only 10 years ago, the use of boron steel was in its infancy. Today it’s found in a large number of automotive applications. That’s led to new research about the material. One area of focus has been in the projection welding of fasteners to this type of material.
August 1, 2016 | By Daniel J. Schaeffler
This primer provides metal fabricators and formers with a quick lesson on how one type of steel differs from another. As “impurities” are added to the element in its natural state, the atomic structure grows more complicated and gains more strength.
June 14, 2016 | By John Packard
The U.S. has placed duties on several types of steel imports, and the domestic steel companies have idled plants. That means supply sources are slowly tightening. Increased demand by the domestic industrial base could push steel prices higher.
May 25, 2016 | By Kate Bachman
Ultraform Industries sought ways to increase output of the safety seat belt and air bag assemblies the company manufactures, but speed could not come at the expense of quality. The company installed a servo press to slow the stroke before the draw, perform restrikes.
May 25, 2016 | By Daniel J. Schaeffler
An estimated 3,500 different grades of steel currently exist, with about 75 percent of them developed in the past 20 years. And more than 500 sheet aluminum alloys are registered with the Aluminum Association. Each of these materials grades has a different chemistry and different tensile properties...
March 8, 2016 | By Daniel J. Schaeffler
Part II of this series about sheet metal defects focuses on the common problems that can be caused during various stages of the material's production.
January 20, 2016 | By Daniel J. Schaeffler
Before a manufacturer can figure out what’s wrong with metal that keeps splitting during a forming process, it needs to understand just why one batch of sheet metal differs from another. The first step is learning the lingo associated with metal creation.
January 18, 2016 | By Bob Capudean
Last time we looked at how welding heat influences the heat-affected zone (HAZ) of metals strengthened by three typical hardening processes: solid-solution hardening, cold working, and precipitation hardening. That leaves one critical strengthening process to consider: transformation (martensite)...
Metal powders are used in various areas of manufacturing including powder metallurgy and additive manufacturing. But in the welding and metal fabrication arena, weld overlays and thermal spray are by far the most popular applications for metal powders.
December 1, 2015 | By Daniel J. Schaeffler
Many in the metals industry think that stiffness and strength are the same thing. That's not the case, especially when you are talking about metals used in automotive designs.
November 11, 2015 | By Mike Barrett
Welding stainless steel is not much different from that required in welding standard carbon steel, with a few exceptions. First, you must exercise more care and control with regard to heating and cooling stainless steel. Second, it’s important to properly match filler metals with the material being welded.
October 26, 2015 | By Madhu Jampala
The advantages of ultrahigh-strength steels are that they can absorb energy at thinner gauges than mild steels, so metal formers can reduce mass by up to 20 percent by using them. This article, converted from a presentation from the Great Designs in Steel 2015 conference, evaluates optimizing geometries for three different forming processes--hot-forming, hot-stamping, roll forming--to solve challenges to forming thin-gauge materials to achieve light-weighting.
September 14, 2015 | By Daniel J. Schaeffler
Not all aluminum sheet is created equal. It pays to know your grades before selecting the type for your job.
September 8, 2015 | By Gerald Davis
Columnist Gerald Davis demonstrates the flexibility of forming tools in CAD modeling by working on the body of a not-ready-for-prime-time tricycle.