Content tagged with "slitting"

Results: 14

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

August 8, 2006

Feed to registration Figure 1 In the mid-1980s service centers attempted to create coils slit in a scroll pattern to reduce scrap. When processing round or nested parts, most stampers use one of these three methods with varying degrees of scrap rates: Conventional coil stock feeding into a one-out... 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

Maintaining a slitting line Modern slitting lines are high-performance machines that run at speeds up to 2,000 feet per minute and are intended to produce 24 hours a day, 365 days a year. For these reasons, coil processors must be sure all line elements are properly maintained, which represents a titanic effort if... Read more...

Article

September 13, 2005

A focus on slitting lines A common theme among fabricators and service centers is that slitting steel has become a commodity process with very low margins. Considering the staggering amount of manufacturing that has moved overseas recently, it follows that too many slitting lines in the U.S. are chasing too small... Read more...

Article

September 14, 2004

Survival of the fastest Because metal fabricators and OEMs have increasingly strict requirements, many suppliers of sheets and blanks must provide high-quality metal stock in terms of flatness, finish, and dimensional accuracy. Competition for every bid is tight, making it easy to take the quality for granted.... Read more...

Article

August 10, 2004

Slitting ultrahigh-strength steels The automotive industry's search for stronger and lighter materials spawned new steel grades to meet higher strength-to-weight ratio requirements. While these materials allow automotive engineers to design lighter and stronger components, they present stampers and coil processors with... Read more...

Article

March 13, 2003

Special slitting for specialty metals Object As this transition to more challenging environments occurs, an on-time supply of high-quality processed stainless steels and other specialty metals becomes vital to U.S. industry. Many steel suppliers that process carbon steel grades are being asked to slit more exotic and often more... Read more...

Article

February 13, 2003

Everything you need to know about flatteners and levelers for coil processing—Part 4 Photo Courtesy of Atlas Steel Products Co., Twinsburg, Ohio. We can almost always improve the shape of the metal, but there are limits. If you have good material coming in, you can make it into superb material. If you have bad material coming in, you might make it into... Read more...

Article

January 16, 2003

Everything you need to know about flatteners and levelers for coil processing—Part 3 Photo courtesy of Atlas Steel Products Co., Twinsburg, Ohio. If you have reviewed your existing equipment and processes as discussed in Part I of this article series and need to upgrade your flat-rolled processing further, you have a number of options that will be... Read more...

Article

November 7, 2002

Everything you need to know about flatteners and levelers for coil processing—Part 2 Metallurgically, most metals that coil processors deal with act similarly, as does the equipment used to fabricate those metals. A stress-strain curve, such as the curve plotted for carbon steel in Figure 1 , shows the relationship between the force on a metal and the metal's change in... Read more...

Article

October 10, 2002

Everything you need to know about flatteners and levelers for coil processing—Part 1 Does your coil processing operation preserve or improve quality? Do you struggle just to keep the quality the mills put into their flat-rolled products, or do you have equipment that can upgrade quality and add further value to your coil processing operations? To maintain... Read more...

Article

July 25, 2002

Camber-free slitting for successful stamping In the competitive world of progressive die stamping, slitting-induced strip camber can quickly turn a profitable job into a losing venture. This can be especially true for large-volume part runs. Problems such as misfeeds, off-center hits, and inadequate transfer webbing can be caused... Read more...

Article

May 30, 2002

What's new with multiblanking lines? Multiblanking lines are used to produce small, accurately shaped blanks directly from large coils. Sometimes they can eliminate the need for a separate slitting line, which helps to decrease floor space requirements and reduce capital spending on machinery and labor.Modern lines can process... Read more...

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