Filter Content

Stretching metal's forming limits with HSP lubricants

June 12, 2003

By:

The trend in metal stamping is to use more and more aluminum and other lightweight materials, such as advanced high strength steel (AHSS). The need for technology to help improve metal flow of these materials in deep-drawing applications also is increasing. In many cases, a stamper's original...

Continue Reading

Designing high-strength steel stamped parts for formability

June 12, 2003

By:

The use of high-strength steel to manufacture automobiles and other transportation vehicles has increased dramatically. The material's strength allows manufacturers to reduce vehicle weight substantially and increase fuel efficiency, without sacrificing performance.

Continue Reading

Found art

June 12, 2003

By:

Watching the sparks fly as his dad welded a temperamental posthole digger mesmerized Derek Arnold. "I found the immediacy of something so permanent absolutely fascinating," he said. "I knew I wanted to weld."A hands-on welding education on the family farm drove Arnold to take his skills and creativity to the next level. In 1993 he graduated from the Maryland Institute College of Art in Baltimore. "I've been welding regularly since my freshman sculpture class," he said.

Continue Reading

Al GMAW: CC or CV?

June 12, 2003

By:

For about 40 years, a great debate in welding is whether to use constant-current or constant-voltage power supplies when using gas metal arc welding on aluminum. Constant-current power supplies made sense 30 years ago and are still used in some applications today, but for most applications, constant-voltage power supplies are suitable for gas metal arc welding aluminum.

Continue Reading

Loading up on quality, productivity, safety

June 12, 2003

Like the products it manufactures, CNH Global N.V. has to stay on the move—technologically.The company's Wichita, Kan., facility uses robotic weldingto help produce Case- and New Holland-brand skid steer loaders.Powerful yet quick, skid steers can spin on a dime and move heavy loads of...

Continue Reading

Dieless NC forming

June 12, 2003

By:

Dieless NC forming or incremental sheet forming is a numerically controlled incremental process that can produce complex shapes from various materials. The process is based on localized plastic deformation in the sheet metal blank. It was developed as an alternative manufacturing method to prototype sheet metal stampings and produce panels in small lot sizes.

Continue Reading

Inline process auditing

June 12, 2003

By:

Imagine this: The line is running smoothly, delivery is tight but on schedule, it is 10 minutes to shift change, and suddenly Art the quality control inspector runs by the office window shouting, "We've got bad parts coming out!" You shut the line down, your production supervisor comes running, Art is grabbing as many parts as he can to start checking, and the operator is thinking, "I should run now and let the second shift deal with it."

Continue Reading

Looking to the future

June 12, 2003

A growing manufacturing base in the Southeast spurred Thompson Steel in the mid-1990s to research what type of equipment to purchase for its new facility in Fountain Inn, S.C. The steel supplier had been shipping coils of slit steel from its plants in Baltimore; Franklin Park, Ill.; and Rome, Ga., almost daily to several customers in the area.

Continue Reading

Dealing with internal pressure in free hydraulic bulging

June 12, 2003

By:

For hydraulic tube bulging, direct pressure control is the most commonly used process. Pressure control allows engineers to determine the correct capacity hydraulic system and, more importantly, prevent tube rupture. However, inflow control, or control of the volume of fluid inside the tube, theoretically could be another viable hydroforming process. Finite element analysis has shown that inflow control could allow engineers to more accurately predict deformation behavior and therefore enhance the hydroforming process.

Continue Reading

Lean manufacturing

Using technology to implement lean manufacturing

June 12, 2003

By:

Lean manufacturing is more than a buzzword. It is key to improving a company's floor performance, customer responsiveness, and, ultimately, its bottom line. Yet few manufacturers truly understand what it takes to implement the concept.

Continue Reading

What's that material?

June 12, 2003

By:

Many alloys—stainless steels, HASTELLOY®, INCONEL®, INCOLOY®, MONEL®, duplex and superduplex alloys—are similar in appearance and easily mixed up after mill test reports (MTRs) and heat stamps are removed in material processing. These mix-ups can have serious consequences to the end user, including product rework, factory downtime, or premature product failure. A single mistake may cost hundreds of thousands of dollars in materials and labor to correct. In addition, any loss of consumer confidence resulting from shipping incorrect material carries incalculable costs.

Continue Reading

Batter up! Turning an aluminum tube into a baseball bat

May 29, 2003

By: ,

The roar of the crowd, the shouts of the umpire, the crack of the bat hitting the ball—these are the unmistakable sounds of a baseball game. Over the last few decades, however, one of those sounds has changed; now the bat tends to make a distinctive, resonating ping. It's the sound of aluminum rather than wood making contact with the ball.

Continue Reading

Making your own punch and dies

May 29, 2003

By:

How many times have you looked through huge piles of blueprints for a prototype part or short-run job and thought, "If only I had that tool, this job would be a piece of cake?"

Continue Reading

Defibrillators—Should you have one in your workplace?

May 29, 2003

By:

This article explores the facts about AEDs, the legalities surrounding their use by laypersons, and guidelines for implementing an AED program in the workplace.

Continue Reading

Art From the Forge

May 29, 2003

By:

Those of you who are busy fulfilling commissions for gates, fences, staircases, and the myriad items that keep food on the table might want to look at artwork created by people whose backgrounds are based in the arts. Metalworkers often are so tuned to traditional designs that they are unaware of a swelling modern movement that could generate new ideas, new visions, and new clients.

Continue Reading