Content tagged with "coil-processing"
Results: 33
Article
February 24, 2009
Stamper rebuffs recession with retool
Eagle Wings Industries, Rantoul, Ill., is a Tier 1 and Tier 2 supplier of large underbody assemblies and subassemblies. The company forms chassis parts (front and rear side members, floor reinforcements, I/P assemblies, side pillars, and strut houses); painted trim parts (front suspension... Read more...
Article
November 25, 2008
Getting it there yesterday
Figure 1
A combination laser-punch machine speeds products through Greenheck Fan’s shop floor.
In the building business, timing is everything. All may not go exactly as planned, and measurements for this duct hole or that wall may be slightly off the blueprint callouts. The... Read more...
Article
October 14, 2008
Reducing setup time in strip leveling
Today's leveler operator isn't given much to work with. He may have a sheet of paper that indicates the maximum penetration for a given gauge to avoid overloading the machine, but that's about it. To determine the right setting to attain the needed correction with appropriate penetration he goes... Read more...
Article
April 15, 2008
Rolling to market - Part II
Automation can significantly reduce downtime between coils. Editor's Note: The following is the second article in a two-part series on shrinking time to market in roll forming. Part I , which appeared in the March issue, covered on-site roll forming technology. This article was adapted... Read more...
Article
April 15, 2008
Rolling to market - Part II
Automation can significantly reduce downtime between coils. Editor's Note: The following is the second article in a two-part series on shrinking time to market in roll forming. Part I , which appeared in the March issue, covered on-site roll forming technology. This article was adapted... Read more...
Article
December 11, 2007
Article
October 9, 2007
For flawless cosmetic finish, start at the head
To remain competitive and profitable in the face of rising energy and material costs and low-cost overseas labor, North American stampers are offsetting these higher costs by increasing pressroom efficiency. Stampers are investing in automation to reduce labor costs and to expand the use of... Read more...
Article
September 11, 2007
Leveling flat-rolled strip
Many users of flat-rolled strip are demanding material with exceptional flatness. One reason is the increased use of lasers, robots, and other manufacturing techniques that are intolerant of height deviations and springback in material. In addition, applications such as automotive, appliance,... Read more...
Article
September 11, 2007
6 ways to focus on slitting lines
Editor's Note: This article is an edited version of an article that was published in the September 2005 issue The FABRICATOR®. As some stamping manufacturing has moved overseas, the U.S. slitting market has become saddled with overcapacity. Stampers can improve coil processing... Read more...
Article
August 8, 2007
Implementing a coil-end joiner
Almost all metal stampers have downtime at the end of a steel coil. The amount of time a line is nonproductive between coils can vary. It's not uncommon for downtime to exceed 20 minutes. On heavy-gauge lines, where a coil's linear footage is low, the amount of downtime can be excessive. Pax... Read more...
Article
July 10, 2007
Keeping stainless flawless for appliance stamping, fabrication
Appliances are increasingly being made of stainless steel to satisfy consumers' growing demands for these high-end products. According to the Association of Home Appliance Manufacturers (AHAM), the use of stainless steel in home appliances has increased in the last five years and is expected... Read more...
Article
June 12, 2007
Technological quantum leap
Figure 1 To generate consistent lengths and maintain flatness, Arme purchased a 60-in.-wide multiblanking line with a turnstile, coil car, payoff reel, precision leveler, crop shear, interchangeable slitter head for side trimming and multiblanking, looping pit equipment, electronic roll... Read more...
Article
April 10, 2007
Is metal roofing fabrication right for your shop?
In recent years the metal building industries have grown substantially. According to the Metal Roofing Alliance, the residential metal roofing market doubled its market share from 3 percent to 6 percent in five years. To take advantage of this growth, more fabricators are increasing the... Read more...
Article
March 13, 2007
Roller leveling 101
Editor's Note: This article is adapted from Brownie Cox's conference presented at FABTECH® International & AWS Welding Show, Oct. 31-Nov. 2, Atlanta,© 2006 by the Fabricators & Manufacturers Association Intl. (FMA), the Society of Manufacturing Engineers (SME), and the American... Read more...
Article
February 19, 2007
The big payoff
Traditional slinging and hoisting of coils for mounting on vertical dereelers or positioning them in coil cradles requires extra personnel and is time-consuming because production must be stopped. When a line isn't running—it's not making money. To keep their lines moving, some... Read more...
Article
February 13, 2007
Big shoulders, long strides
Jeff Hansen, Dave Hansen, Cathy Hansen, and Mike Hansen (left to right) are equal partners in Hansen Steel Services. About 25 miles inland from the Pacific Ocean in Santa Fe Springs, Calif., Hansen Steel Services employees wear T-shirts imprinted with the company's Viking logo—a... Read more...
Article
September 12, 2006
Holding the line on metal costs
Minimizing coil processing scrap maximizes yield. Nearly everyone who processes metal—aluminum, carbon, or stainless steel—is concerned about scrap loss. Scrap loss in coil processing operations, such as slitting, cut-to-length, and stamping, often is overlooked. Finding... Read more...
Article
September 12, 2006
Doing its level best
More than ever manufacturers depend on high-quality blanked and stamped parts to reduce production costs, speed up assembly time, and eliminate secondary processing requirements. The automotive market in particular is focused on consistently achieving uniform and accurately dimensioned... Read more...
Article
May 9, 2006
New handling instructions
The stamping industry has seen its share of consolidation over the last six years. As a result, many in the U.S. wondered what mode of metal forming would be likely to survive the twin terrors of cost-reduction pressures and threats from overseas stamping shops. Conventional wisdom... Read more...
Article
April 11, 2006
Getting a handle on coil handling
The initial objective in selecting coil handling equipment is to determine the type of system best-suited to the application. Requirements—such as production rates (feed length versus strokes per minute), material finish and condition, available shop floor space, tooling, material... Read more...
Article
March 7, 2006
How to avoid slit-in coil slitting problems
Good coil slitting tooling and practices result in good edge quality.
Many problems can arise during metal slitting. These include poor edge quality, edge burr, edge wave, camber, crossbow, knife marks, and slit width that is out of specification.
When slitting... Read more...
Article
February 7, 2006
Understanding press feeds
A press feed must not only move the proper amount of material into the tool, it must position it correctly into the die—front to back, side to side, and square with the tool. In this case, it must also gently handle prepainted coil to prevent scratching it. Over the last decade... Read more...
Article
December 13, 2005
Coil feed line considerations when stamping HSS
High-strength steel (HSS) rapidly is becoming a popular material for the automotive industry. Why? With its higher tensile and yield strengths, HSS is stronger at all gauges than conventional mild steels. Initially light-gauge HSS was used to replace heavy-gauge mild steel to reduce... Read more...
Article
April 11, 2005
Evaluating in-house coil slitting
As the cost of steel rises and profit margins shrink, small to medium-sized stampers are looking for ways to reduce costs and streamline operations while maintaining quality. One area to consider is the cost of slitting steel. Shops that run 10,000 to 50,000 tons a year usually... Read more...
Article
April 11, 2005
Analyzing coil handling equipment purchases
Refurbishing can be a cost-effective way to breathe new life into an old piece of equipment. This cam feed was originally built in 1974. Recent economic growth finally has spilled over to the manufacturing sector, so this might be a good time to upgrade your stamping process. While... Read more...
Article
July 13, 2004
Pushing plate processing productivity
An infinite-rotation compound-skew-axis manipulator with a plasma torch allows automated contour bevel cutting of mild steel, stainless steel, and aluminum. Maximizing productivity. Making more with less. You hear about it almost every day. Productivity improvements are what saved... Read more...
Article
May 4, 2004
Sizing up pallet decoilers
Buying a decoiler that is too small for your jobs won't increase production and may actually cost more in downtime and maintenance. Some of these maintenance costs are replacement of the motor or controller because of frequent power overload, bent guide arms, and increased bearing wear. However,... Read more...
Article
April 6, 2004
Sizing up servo presses
For example, progressive or transfer applications that require forming, coining, or blanking of high-strength alloys or dual-phase materials with critical tolerances at production speeds of 20 to 100 strokes per minute (SPM) can benefit from servo technology. However, if a progressive-die... Read more...
Article
February 13, 2003
Article
January 16, 2003
Article
November 7, 2002
Article
October 11, 2001
Correcting shape problems in flat-rolled coil
Object Flattener Designs Flatteners can be spread-center or close-center machines (see Figures 1 and 2 ). The rolls on spread-center machines generally are separated by more than one roll diameter so that the top bank of rolls can pass down through the bottom bank of rolls. A close-center... Read more...
Article
May 30, 2001
Minimizing knife deflections in coil slitting
When it is time to buy new rotary knives for your steel service center company, you must consider several things. Typically, you will ask several manufacturers of rotary knives for quotes based on: The type of material being slit. The gauge range of the material being slit. The size of... Read more...
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