Content tagged with "shape"
Results: 21
Article
June 8, 2004
Selecting a shielding gas for joining stainless steel
The use of stainless steel has grown significantly over the past decade in North America. As its use has grown, so has the number of different consumables required to join it. Because stainless steels are used in applications that are different from carbon steels, it follows that their... Read more...
Article
March 11, 2004
New Features in Coil-to-Coil Slitters
Productivity is at the forefront for equipment builders today because their customers demand it, and processing margins for users of coil processing equipment haven't changed from years ago. For a company to be profitable, its equipment has to produce more. It's that simple. To accommodate the... Read more...
Article
February 26, 2004
Selecting the right tungsten
But this isn't as true anymore, as the welding industry has shifted toward using inverter-based AC GTAW machines that incorporate square wave technology. Selecting the right tungsten becomes an increasingly critical issue with inverter technology to maximize its benefits. In the past pure... Read more...
Article
January 29, 2004
Article
October 23, 2003
Blast Cleaning Equipment: What you need to know before buying
Many options are available that can achieve the necessary prefinish requirements of any part. Of those options, blast cleaning can be an efficient and economical choice. Blast cleaning requires no chemicals and does not remove any surface metal in its process. Some facts however, should be... Read more...
Article
October 9, 2003
Using finite element analysis to roll-form tubes
Figure 1 Roll forming causes yield stress, flow stress, and hardness variations in material properties around a tube's circumference. These variations may lead to premature bursting or excessive thinning in hydroformed parts. This makes it necessary to determine the effect roll forming... Read more...
Article
October 9, 2003
Controlling bend angles
Spring-back Analysis All metal has a certain amount of spring-back. Spring-back, also known as elastic recovery, is the tendency for the metal to want to return to its original flat blank shape after being bent. To fully understand why metal springs back, we first must understand that metal,... Read more...
Article
October 9, 2003
Eliminating final trim shearing of hydroformed tube
An alternative to trimming a tube to establish tube length is to form the tube in the preform operation to a geometry that is close to the final product and to seal it during hydroforming with caps that match its formed shape. Generally, a round tube is bent on a rotary draw bender... Read more...
Article
June 12, 2003
Designing high-strength steel stamped parts for formability
The problems associated with forming high-strength steel often are created during the design stage, when products are designed in such a way that they cannot be manufactured using conventional stamping methods. Or the product requires numerous or special offline operations, such as annealing or... Read more...
Article
May 29, 2003
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
December 13, 2001
Pairing a servo feed with a pull-through straightener
Servo feeds have been in use for many years now. People have become comfortable with this technology and it is becoming commonplace. What is not commonplace is the knowledge that servo feeds can be used with pull-through straighteners as opposed to a conventional feed line that uses a... Read more...
Article
December 11, 2001
Cutting through the obstacles
Of all the materials that can be cut on industrial band saw machines, structural steels—such as pipe and tubing, plate, angle and channel iron, and I beams—are among the most common and challenging. The challenges often arise when a blade encounters changes in the cross... Read more...
Article
November 29, 2001
Using existing tooling for new product applications
Figure 1: This design is typical for the last fin pass for low-carbon steel using high-frequency welding. "In turbulent times, one must be innovative or be rendered defenseless." Peter Drucker said these words when addressing the Steel Service Center Institute several years ago, and... Read more...
Article
November 15, 2001
Using hydroforming aluminum components versus steel stampings
As the name implies, hydroforming is a metal forming process that uses water as a forming medium. In the case of tube hydroforming, a tubular workpiece is placed between two mating die halves. The tube is sealed, normally by metal mandrels inserted under pressure in each end of the tube. Water... Read more...
Article
September 4, 2001
Standardizing finger tooling
Figure 1: Tooling is mounted to transfer rails by receivers, which provide mechanical, electrical, and pneumatic connections. Improvements in transfer press automation and the availability of used large-bed presses for retrofitting have accelerated the use of transfer presses with... Read more...
Article
June 13, 2001
Article
May 30, 2001
Skelp edge preparation for manufacturing ERW pipe
Achieving a quality weld requires starting with good edges. In manufacturing electric-resistance- welded (ERW) pipe and tube, this is critical. Perfect edges are almost impossible to obtain consistently by rotary side trimming single-width coils or side trimming and slitting master... Read more...
Article
May 15, 2001
Optimizing robotic laser cutting of hydroformed tubes
Hydroformed and rectangular cross-section tubes have become popular for new truck and sport utility vehicle (SUV) frames, engine cradles, roof pillars, and suspension members. The ability to achieve high stiffness, exotic shapes, and minimal weight from these structures could drive their... Read more...
Article
April 24, 2001
Predicting the outcomes of laser thermal forming
Applying a laser or any other high-density heat source to the surface of a metal sheet for a short time will distort the metal. If this distortion could be predicted, the laser could be directed so that the sheet metal would form the desired shape. This idea opens up many possibilities,... Read more...
Article
February 19, 2001
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