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Article

April 3, 2012
Justifying a robotic press brake
Editor’s Note: This article is adapted from “What You Need to Know Before Automating a Press Brake,” presented by Paul LeTang at FABTECH® Nov. 14-17, 2011, Chicago, ©2011 by the Fabricators & Manufacturers Association... Read more...

Article

May 6, 2011
The big job of high-tonnage bending
Figure 1 Greiner Industries’ giant 2,750-ton press brake is capable of producing a 90-degree bend in 1-in.-thick grade 50 steel along the full length of its 40-ft. bed. Photo courtesy of Greiner Industries Inc. The view of a... Read more...

Article

February 25, 2011
The fundamentals of press brake maintenance
Figure 1 Punches and dies should be free of dents. Tooling that shows signs of such wear should be returned to the tooling manufacturer for evaluation, reconditioning, or replacement. Today's hydraulic press brakes are offered in a... Read more...

Article

September 16, 2010
Where the tool meets the sheet metal
Figure 1 This duplicator punch press worked similarly to a duplicating wood lathe. When an operator dropped the stylus in a hole on the template on the right, the punch would fire into the workpiece placed inside the work envelope on the... Read more...

Article

May 4, 2010
Report from Europe: Finding the sweet spot in fabricating automato
Figure 2 This robot press brake cell at P. Lemmens Air Movement Co. handles varying lot sizes, from a few dozen to several hundred piece parts. Walking a block north of the Leie River flanked by the medieval Broel towers—two of... Read more...

Article

May 14, 2009
Keeping the (fire) door open
About a block north of the Cross Bronx Expressway, not far from Yankee Stadium, truck and van drivers brave the city streets and park next to or back carefully into the loading dock of an unadorned brownstone. Drivers get out and yell, "I need... Read more...

Article

January 15, 2008
2 strategies for optimizing bending operations
Offline bending software expedites the bending process. Metal fabricators must continuously seek new ways to maximize their uptime and improve their staff utilization to combat the skilled worker shortage. Fabricators typically encounter... Read more...

Article

July 10, 2007
Advances in automation broaden punching capabilities
Increasingly metal fabricators are turning to automated equipment to reduce punching production downtime and costs, streamline manufacturing, minimize material handling, and address a shortage of skilled labor. In some parts of the world,... 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... Read more...

Article

June 13, 2006
Fabricator puts the brake on bend inconsistency
When you think of Nebraska, you probably think of farming. Well-known for endless fields that cover 96 percent of the state, Nebraska produces vast amounts of corn, soybeans, alfalfa, and wheat. Look a little closer, though, and you... Read more...

Article

February 8, 2005
FMA goes to China
The group had just spent 11 days last November traveling through Taiwan and China, visiting sheet metal stamping and fabricating operations, as well as the facilities of tour sponsors SEYI Presses and The TRUMPF Group. They had seen global... Read more...

Article

September 14, 2004
The growing versatility of turret punch presses
Press Drive Flexibility Higher hit rates on a mechanical ram system are a direct result of the faster axis speeds and quicker acceleration and deceleration supplied by servo systems. A mechanical ram has a fixed stroke length, which... Read more...

Article

November 20, 2003
Improving bending operations
The company works with materials from 3 to 25 millimeters and produces parts that range from pallet size to 15,000-pound weldments measuring 8 by 12 by 3 feet. Part runs are low to moderate, from five to 500 pieces. The company classifies... Read more...

Article

December 12, 2002
Case study: CO2 Lasers in job shops
Processing thousands of pounds of steel each day using its punch- plasma process required seven employees working in shifts around the clock to prepare part programs, sequence machinery, and load and unload material. Wrayco... Read more...

Article

August 8, 2002
Science Nonfiction
Forty years ago no one would have thought it possible to cut plate steel with focused light. Over time it has not only become possible but common in manufacturing operations. However, making this science fiction into fact wasn't enough,... Read more...

Article

November 15, 2001
Adaptive bending
In conventional press brake bending, the bend angle obtained often differs from the programmed angle even though it is produced on a CNC machine. To overcome this problem, the bend angle can be measured during the forming process and this... Read more...

Article

August 16, 2001
In search of the perfect bend
Press brake manufacturers have made tremendous advances in the art of machine design and manufacturing. Machine frame components are designed to use proven mechanical engineering principles combined with CAD technology to identify the areas most... Read more...