Content tagged with "metals"
Results: 20
Article
February 10, 2009
New dimension, familiar direction
H.W. Metals processes high-strength steel for many different applications, including transportation equipment manufacturing. H.W. Metals, Tualatin, Ore., processes high-strength steel for transportation equipment manufacturers and other applications. The company began operating in 1979 as... Read more...
Article
November 25, 2008
Don't get stuck wondering about composites
Adhesives distribute stress
evenly along the bond line.
Photo courtesy of Henkel Technologies.
With the price of metals increasing, manufacturers are modifying their designs to offset their rising costs. At the same time, more consumers want to purchase vehicles based on gas... Read more...
Article
March 11, 2008
The nanofiber factor
Cartridge filters with nanofiber technology are capable of filtering submicronic particles. Maintaining good indoor air quality in a factory isn't just a matter of choosing the right air pollution control equipment and configuring it to meet the needs of the facility. Selecting the correct... Read more...
Article
January 9, 2007
Draw forming
Editor's Note: This is the sixth in a series of seven articles that identify and define the need for a new processing theory for the net shape processes (of which draw forming is one) and that explain the general content and configuration that new theory must have. The first five articles in... Read more...
Article
August 8, 2006
Draw forming, Part III
Editor's Note: This is the second in a series of seven articles that identify and define the need for a new theory on the net shape processes (of which draw forming is one) and that explain the general content and configuration that new theory must have.
Figure 1 The classic... Read more...
Article
June 13, 2006
Die building
It is amazing how many dies stampers build completely with little or no understanding of what is truly required of the dies. Stampers process parts and build dies without even knowing the metal type or thickness, never mind the part tolerances. This is, at the very least, a risky business. The... Read more...
Article
June 13, 2006
Measuring the plastic strain ratio of sheet metals
Drawing metal successfully relies, in part, on understanding precisely how the metal reacts to tensile forces. When subjected to tensile forces, a flat section of sheet material becomes thinner because of dimensional changes in its width and thickness. The ratio of the changes in width... Read more...
Article
May 9, 2006
Defining material specifications
Author's Note: It has been almost six years since my first article appeared in STAMPING Journal. I would like to take a moment to thank the editors, designers, and loyal readers of SJ and the Die Science column. (Five stars to Associate Editor Kathleen McLaughlin for making me sound a lot... Read more...
Article
April 11, 2006
Guidelines for forming high-strength material
More and more stampers and die builders, both automotive and nonautomotive, are increasing their use of higher-strength materials. Grades of steel such as dual- or triple-phase; high-strength, low-alloy; and bake-hardenable are not uncommon in the automotive and appliance industries. In... Read more...
Article
September 14, 2004
Where abrasive waterjets shine
One of the first applications for abrasive waterjet technology was blanking sheet metal made of high-strength steels (HSS), such as Inconel® alloys and Hastelloy®, and titanium for jet engine applications. Although the technology was designed to help meet the challenges associated... Read more...
Article
December 11, 2003
Welding's effect on strengthening steel
As I mentioned in the September/ October issue, welding can severely influence strengthened or hardened metals, depending on the hardening technique used. Hardening Techniques and Welding Effects Work- or strain-hardened metals exposed to the intense localized heat of welding tend to... Read more...
Article
August 28, 2003
Considering thermal processes for dissimilar metals
This joint has dual characteristics—a brazed joint on the steel side and a welded joint on the aluminum side. A reliable method of joining the two most commonly used metals, steel and aluminum, would make it possible to make these joints in several applications. On one hand,... Read more...
Article
August 14, 2003
Selecting the right abrasives for your operation
The Nitty Gritty For each weld configuration and material there is an abrasive wheel that ensures optimal grinding results. The first step in determining the right wheel for the job is to identify the material being welded. Most abrasives manufacturers offer wheels made of three... Read more...
Article
April 24, 2003
The structure of metal
As you think about molten metal, keep a couple of points in mind. First, heat flows to cold-always. And that becomes more understandable when you consider that warm atoms are moving faster than cold atoms. And those fast-moving atoms are bumping into other atoms, causing them to move quickly.... Read more...
Article
April 24, 2003
Cutting exotic alloys
But sometimes this common process can be puzzling, especially when the fabricator is cutting titanium or other alloys. Tubing may be cut successfully in one production application, but the next time the result is galling and extremely short blade life. If an operator understands why this... Read more...
Article
April 10, 2003
Using narrow-gap GTAW for power-generation equipment
The new shroud was welded with narrow-gap GTAW. The groove in this shroud was open by 6 degrees and 0.28 in. (7 mm) wide at the parallel section. This process allows uniform welding with first-layer penetration in all positions. The wire feed and base metal fusion rates can be... Read more...
Article
March 13, 2003
Special slitting for specialty metals
Object As this transition to more challenging environments occurs, an on-time supply of high-quality processed stainless steels and other specialty metals becomes vital to U.S. industry. Many steel suppliers that process carbon steel grades are being asked to slit more exotic and often more... Read more...
Article
February 27, 2003
It's all about why
Perhaps that's why there are volumes of information on metallurgy and, specifically, welding metallurgy. This subject can quickly become complicated and challenging for even the most scientific of thinkers, and its influences are felt as soon as we put torch to metal. Furthermore, those... Read more...
Article
October 11, 2001
Welding specialty metals safely
Object Welders spend a lot of time acquiring the skills to work with a variety of metals to create flawless welds, but they might not learn about the less obvious safety hazards associated with the materials they work with. Welders in power, food processing, and pharmaceutical plants often... Read more...
Article
May 15, 2001
Know your bending basics—Part I
Editor's Note: This article is Part I of a two-part series discussing bending. Read Part II .
Of all of the operations that typically are done in a stamping die, it seems that achieving and maintaining a 90-degree bend are two of the most difficult.
To accomplish these tasks... Read more...
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