Articles

Filter Content

Using finite element analysis to roll-form tubes

October 9, 2003

By: ,

Roll forming is a common method for producing steel tubes. It is a continuous process in which a strip is guided through several sets of rolls that form the strip into the desired shape. After the final shape is achieved, tube edges are welded together to form a closed section. After the welding operation, the tube is sized through another set of rolls to obtain the required diameter.

Continue Reading

A survey of presses for hydroforming tubes, extrusions

October 9, 2003

By: ,

Hydroforming is one of the most important fields in production manufacturing. In recent years many single presses, groups of presses, and entire production plants for internal high-pressure (IHP) hydroforming of tubes and extrusions have been installed, especially in the Americas and in Europe. The driving force behind this development has been the efficient production of automotive parts.

Continue Reading

R&D Update: Predicting springback in air bending, straight flanging

October 9, 2003

By:

Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/ NSM), The Ohio State University, Professor Taylan Altan, director.Air bending and straight flanging are the most prevalent types of bending in sheet metal forming. Predicting...

Continue Reading

Investing in lubricants

October 9, 2003

By:

All businesses tied to the metal forming industry are scrambling to find areas in which they can lower costs without sacrificing quality. Adding to this burden are a tight cash flow and a lack of financial resources to invest in process improvement equipment. Therefore, the savings must come from doing more with less.

Continue Reading

Band sawing bundled shapes

October 9, 2003

Bundled side by side or top to bottom, thin-walled structural metal shapes pose a productivity dilemma for sawing shops. Band saw efficiency typically is measured in cubic inches of stock removed per minute, and the most efficient cuts are those made in large, solid pieces.

Continue Reading

Selecting the best lens for welders' eye protection

October 9, 2003

By:

In the industrial environment, safety glasses are a necessity for jobs that put employees' eyes at risk of exposure to heat, impact, chemicals, or dust. But workers also need protection from nonimpact dangers, such as radiant energy, eye strain, and fatigue. So choosing the appropriate lens or filter plate for your workers' eye protection is just as important in preventing eye injury as is selecting the appropriate style of safety eyewear.

Continue Reading

Combating plate corrosion

October 9, 2003

By:

According to a recent study sponsored by the U.S. Federal Highway Administration (FHWA)1, with support from NACE International—The Corrosion Society, corrosion-related direct costs such as prevention methods and infrastructure repair and replacement make up 3.1 percent of the gross domestic...

Continue Reading

Camp Manufacturing

October 1, 2003

By:

Ah, the memories of summer camp. Swimming, sunscreen, hiking, bug spray, camping, arts and crafts. And the promise of an exciting experience with friends. Like youths all over the U.S., 10 students from the Rockford, Ill., region have their own summer camp recollections. Theirs are from a one-week experience the last week of July, but it wasn't necessarily like the camp you may remember.

Continue Reading

Getting a handle on work-related hand injuries

September 25, 2003

By:

The hand is one of the most complex parts of your body. It enables you to execute simple or complex jobs that cannot be performed by any other part of the body. Without your hands, it would be extremely difficult to do even those routine tasks that we take for granted every day.

Continue Reading

How important is roll forming lubrication compatibility?

September 25, 2003

By:

At first glance, it doesn't seem that the compatibility of the lubricant used in the roll forming process needs much attention. You'd better look again. It may surprise you that the chemical and physical properties of the roll forming lubricant leave fingerprints in at least six different areas of the operation.

Continue Reading

Aluminum Workshop: Choosing a MIG machine for occasional aluminum welding

September 25, 2003

By:

Q: I want to buy a small gas metal arc welding (GMAW) machine, preferably one that runs from 120-V input power. Most of my welding will be steel, but I would like to weld aluminum occasionally. Can these machines really weld aluminum? I've heard a lot of different opinions. Some companies claim...

Continue Reading

Budget cuts hit welding hard

September 25, 2003

By:

Bill Garner is outraged when he hears that Connecticut, where he teaches welding, would rather import welders than keep adult vocational education programs that train the state's own residents."I don't think that the people making this decision understand that welding is used in business today,"...

Continue Reading

Supporting the defense

September 25, 2003

United Defense's motto is Changing the future of defense™. One of its latest missions toward this goal was to introduce a direct diode laser into its Aberdeen, S.D., manufacturing facility.The company designs, develops, and produces combat vehicles, artillery, naval guns, missile launchers,...

Continue Reading

Making the most of hydroforming

September 25, 2003

By: ,

Hydroforming has become a competitive metal forming method and has succeeded in many applications because of its weight- and cost-saving attributes, elimination of joining operations, and ability to offer part design for confined spaces.

Continue Reading

The wrinkle-wiper for tube bends

September 25, 2003

By:

A wiper die is a piece of tooling used in tube bending that helps keep the bend from wrinkling. While there are many reasons and ways to use a wiper die in a tube bending maching, you should also know what types are available, their differences, and how to choose the right one for your application.

Continue Reading