Content tagged with "play"
Results: 17
Article
February 26, 2004
Do you see the light?
To be more specific, fabricators may be missing out on an opportunity to pocket some savings if they haven't taken a close look at how their operations are consuming energy. And with the economic environment as tough as it is, many fabricators probably are concentrating more on the... Read more...
Article
January 13, 2004
Producing side-impact profiles
Euro-NCAP, which stands for European New Car Assessment Program, was introduced in 1997 by five European governments, together with the European Commission. The results of this program are followed closely by the general public, so much so that hardly any automobile producer would risk... Read more...
Article
January 13, 2004
Appliancemaker reduces downtime with stamping press feed system
Most of the parts are stamped out of light-gauge metals. "On the majority of our machines, we're feeding 0.0040 inch and less," said Dan Partin, senior process engineer at Whirlpool. Partin reported that the company had noticed excessive downtime on some of its key presses that were running for... Read more...
Article
January 13, 2004
Structural tube on campus
A Sculptor and an Architect Carpenter specializes in large-scale public installations, including architectural sculptures and infrastructural items. He studied architectural glass art under artists in England and Germany, and this experience is reflected in his use of glass and light,... Read more...
Article
November 6, 2003
Choosing the right oxyfuel gas and supply system
Photo courtesy of Weldstar Inc. Cutting In oxyfuel cutting, an oxygen jet, not the preheat flame, performs the cutting. The oxygen jet oxidizes the material and expels the heated material from the kerf. The purpose of the preheat flame is to heat the material to the ignition... Read more...
Article
October 9, 2003
Investing in lubricants
Raw materials and overhead account for 75 percent (see Figure 1) of an average metal forming company's total operating cost. Improving these two areas can make the biggest impact on your bottom line. But what if you've optimized your material costs by paying the lowest price for your... Read more...
Article
October 9, 2003
Predicting springback in air bending, straight flanging
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.... Read more...
Article
July 10, 2003
Do you use checking jigs and fixtures?
The effect that checking fixtures have on your operating bottom line is so important that they should be given a much higher priority than most tube fabricators give them. The cost of quality checking fixtures should be included in every bid when quoting jobs. In fact, costs incurred... Read more...
Article
May 29, 2003
Roll form tooling tryout and troubleshooting
The secret to developing successful roll tooling—whether for tube production or roll forming—and achieving maximum roll integrity is a simple but often overlooked notion: a comprehensive approach. Such an approach comprises five steps: Designing the roll tooling... Read more...
Article
May 15, 2003
Producing holes in tubing
Producing holes in tubing with punch press tooling can be divided into two main processes: punching and piercing (see Figure 1 ). Tube Piercing Tube piercing is different from traditional hole punching in that a die is not employed on the underside of the material. Instead, external... Read more...
Article
February 19, 2002
High-speed feeding techniques
The maximum operating speed of a stamping operation should be limited, in theory, only by the maximum number of strokes per minute (SPM) that the press can achieve. In reality, production speed is limited by other factors as well. For instance:
1. The uncoiler may not unwind... Read more...
Article
December 13, 2001
Keeping pace with today's punching requirements
Figure 1 The punch, die, and stripper's function still is to punch holes that are a specific size and shape into sheet metal in a specific location. The quest for accurately punched holes, top-quality piece parts, and long tool life can be a positive experience when you consider your... Read more...
Article
December 13, 2001
Hydraulic workholding from scratch
Hydraulic clamps can be used in place of manual or toggle clamps to hold a workpiece or tool in place during stamping. The foundation for effective hydraulic workholding is built on component selection and system connection. Whether the system is simple or complex, the job at hand basic... Read more...
Article
November 29, 2001
Tooling, the key for mill production
One of the most important lessons any successful tube mill producer learns is that high-quality tooling is mandatory to achieving and sustaining top-grade production values. To put it simply, tooling is to a tube mill as an engine is to an automobile: You can't get where you need to go without... Read more...
Article
September 17, 2001
Examining tube mill roll tooling, setup, and maintenance
Poor tooling setup and mill alignment can be costly, especially when they result in decreased production quality and scrap. Both areas must be maintained continuously. A secret to achieving maximum roll integrity is simple, but often forgotten: Roll tooling design is based on known parameters... Read more...
Article
September 17, 2001
Welding exhaust system components
In the field of automobile exhaust systems, such components as manifolds, pipes, catalytic converters, and mufflers are joined either by the car manufacturer or by a subcontractor to form a subassembly ready for attachment. Today, large numbers of these components are welded with a laser.... Read more...
Article
July 26, 2001
Achieving faster, more efficient tube mill changeovers
A changeover on a tube mill does not mean just changing the tooling. It means changing from running good tube of one size to running good tube of another size. Many machine configurations can speed up a changeover, such as rafted sections, quick-change fasteners, etc. However, fast changeover... Read more...
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