Content tagged with "materials"
Results: 29
Article
July 2, 2009
The pressure is on
The 400-ton pressure testing setup shows the die components and bumper blocks. The traditional method of measuring pressure distribution in stamping operations—the die spotting blue technique—indicates the pressure points but not how much pressure. This makes it difficult to... Read more...
Article
August 26, 2008
When does a punch/laser make sense?
Shops that process enough of the right parts can increase uptime and reduce secondary operations with a combination punch/laser machine. Photo courtesy of TRUMPF Inc.
Business growth led Hawkeye Industries President and CEO Bryan Hawkins to seek a machine that could punch and laser-cut... Read more...
Article
June 17, 2008
Silicon Valley stamper sizes up, down electronics
Scandic Springs Inc., a San Leandro, Calif., job shop that specializes in stamping and coiling spring materials, faces the challenges of a shrinking electronics industry—both in market size and scale of components.
"The northern California market has had a real shakeout in the last... Read more...
Article
December 11, 2007
Working with stainless on a budget
To say the last several years have been chaotic would be an understatement. It started with the bursting of the tech stock bubble in 2000, and then it was one thing after another. The recession of early 2001 led to a prolonged slump in consumers' durable goods purchases; the terrorist... Read more...
Article
October 9, 2007
Strategic sourcing for stampers
Material is the single largest cost component for stamping companies—about 50 percent to 60 percent of annual sales. This amount may vary depending on the extent and composition of secondary operations. Direct labor represents only about 6 percent to 8 percent of sales, but it gets the... Read more...
Article
September 11, 2007
Choosing shielding gases for arc welding
Bead and penetration profile, alloying content, and surface appearance can be improved with the right gas mix.
Welding operators often overlook shielding gases and their individual contributions to the welding process. Shielding gases can influence metal transfer mode, alloy content,... Read more...
Article
August 8, 2007
Ask for help
Simply stated, ask. According to a recent Purchasing Magazine survey, buyers say they expect their distributor suppliers to provide them with the lowest prices and highest service levels. Separately, distributors say buyers do press them to provide more information, especially on pricing... Read more...
Article
February 13, 2007
Draw Forming, Part VII
Editor's Note: This is the last 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 six articles in... Read more...
Article
January 9, 2007
Draw forming, Part VI
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.
Figure 1
Sheet... 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
November 7, 2006
Draw forming, Part V
Editor's Note: This is the fifth 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 four articles in... Read more...
Article
October 10, 2006
Older plasma and laser cutters having performance fits?
One of the most common and least expensive retrofits on a laser system is the cutting head. Upgrades expand plate cutting capabilities To stay competitive in today's marketplace, fabricators are constantly evaluating many variables in the areas of current and potential customer base,... Read more...
Article
September 12, 2006
New forms for modern autobody stamping
With the introduction of stronger safety legislation and increased fuel prices, automotive manufacturers must respond with higher car body stiffness for safety and lower body weight for fuel efficiency. The fields of materials development, engineering, and manufacturing are working... 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 16, 2006
Draw forming, Part II
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. Metrics is how things are measured.... 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
Envelope, please!
Do you remember this photo that originally appeared in the January/February issue of TPJ on page 10? I asked readers to send me short, glib captions for the photo and promised to publish them in a future issue. Well, the time has come. But first, let's digress. You might recall that the... 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
Eliminating problems that cause flaws
Editor's Note: This is the second article in a two-part series on eliminating tube or pipe flaws. Part I discussed the steps needed to eliminate variables introduced by the tube or pipe mill. Part II discusses material variations that result in flaws in the finished product. Before getting... 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
January 10, 2006
Happy New Year!
This sample was cut from a section of welded 16-in.-OD pipe. The interesting pattern was created when a socket head cap screw got rolled into the strip at the steel mill. Photo provided by William C. Tungate, department manager, 16-inch mill, Newport Steel, Newport, Ky. Well, we've... Read more...
Article
November 8, 2005
Trailblazing with waterjet
With waterjet cutting, Johnson Enterprises has been able to attract new customers outside of its core sawmill industry customer base. A long way from its modest machine shop beginnings 20 years ago, Johnson Enterprises Inc. in Val D'Amour, New Brunswick, Canada, has become a leading... Read more...
Article
October 11, 2005
The benefits of materials engineering
OEMs and Tier 1 manufacturers are moving business to global low-cost suppliers. As a result, U.S. stampers are trying to remain competitive by cutting costs or offering more services. U.S. stampers are missing an opportunity to gain a competitive edge by offering materials engineering... Read more...
Article
August 28, 2003
Article
March 13, 2002
Article
October 11, 2001
Article
June 6, 2001
Protecting surface-sensitive materials in coil processing
In today's world of metal fabricating, reducing the number of steps in the production process is an ever-increasing trend. Fabricators are becoming more efficient by: Feeding production lines with materials that have been slit to the proper finished dimension. Feeding production lines with... Read more...
Article
March 13, 2001
Article
March 5, 2001
The basic elements of tubular hydroforming
Tube hydroforming has been well-known since the 1950s. However, with recent advancements in computer controls and high-pressure hydraulic systems, the process has become a viable method for mass production, especially with the use of internal pressures of up to 6,000 pounds per square inch... Read more...
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