http://www.thefabricator.com/Shearing/Shearing_TechCell.cfm The Shearing tech cell is packed with specific links to help you find product information, suppliers, technical articles, case studies, seminars and conferences, as well as books, software, and videos on metal fabricating-related topics. en-us http://www.thefabricator.com/RSS/images/thefabricator_rss.gif http://www.thefabricator.com Copyright 2007 FMA Communications, Inc. All rights reserved. official publication date Tue, 21 Aug 2007 11:14:06 AM CDT Vicki Bell Laurie Harshbarger http://www.thefabricator.com/Shearing/Shearing_Article.cfm?ID=320 Figure 1: Single-cut shearing requires a hold-down device on the material infeed side of the shear. In the fabrication of structural steel, the first process usually is cutting-to-length. The methods typically employed are sawing (cold sawing or band sawing), burning (plasma or oxyfuel), and shearing. Shearing generally is limited to miscellaneous structural steel parts. It is not used on larger structural elements, because the force required and the resulting cut quality limit economic... Tom Boyer, Contributing Writer Thu, 28 Feb 2002 12:00:00 AM CST http://www.thefabricator.com/Shearing/Shearing_Article.cfm?ID=290 Often it is thought that to get more production from a shearing operation, another shift, or even a new shear must be added. However, because of a lack of funds, personnel, or floor space, a new shear is not always the answer. The basics of a productive shearing operation are often overlooked. What good is it to have a shear that will do 30 to 60 strokes per minute (SPM) if the material coming into and going out of the shear is not being properly handled? Typically, only 5 percent of a she... Rod Stouder, Contributing Writer Wed, 13 Jun 2001 12:00:00 AM CDT http://www.thefabricator.com/Shearing/Shearing_Article.cfm?ID=257 Shears are common pieces of fabricating equipment that can be found in many metal forming plants. From tube mills to small fabricators, the shear is one of the most critical and diverse tools used in metal fabricating. Varying in size from small hand-held metal shears and foot-operated trim shears to high-production in-line flying cutoffs, the modern metal shear has replaced the saw as the machine of choice for high-production metal cutting. This article addresses improving uptime and redu... Robert Kotynski, Contributing Writer Tue, 10 Apr 2001 12:00:00 AM CDT http://www.thefabricator.com/Shearing/Shearing_Article.cfm?ID=238 Figure 1: A guillotine shear has a moving blade that runs on straight slides. The moving blade is almost parallel to the fixed blade during the entire stroke. Sheet metal and plate shearing machines are used in many fabricating and sheet metal operations. Before selecting a shearing machine, several factors must be evaluated, including the type of shear, required capacity, productivity enhancement options, and safety. Shear type is determined by many factors, including the material lengt... Stephen A. Lazinsky, Contributing Writer Thu, 26 Jul 2001 12:00:00 AM CDT http://www.thefabricator.com/Shearing/Shearing_Article.cfm?ID=149 Many factors should be considered when selecting a drive and control system for a cut-to-length (CTL) line. First, decide the type of CTL line best-suited for your application, specifications, and budget. Let’s assume you’ve chosen a loop roll feed. Where do you go from there? Drive Choices Figure 1 shows some typical frequency response ranges for all types of drives available today. Performance varies widely among manufacturers. Figure 1:Drive frequency respo... Martin Marincic, Contributing Writer Thu, 11 Jul 2002 12:00:00 AM CDT