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Articles tagged with "bridge"

Results: 4

Six dangerous misconceptions about crane safety: Knowing the facts could save your life

Knowing how cranes should be used, and how they should not be used, is critical to crane safety. Overload, side pull, limit switches, secondary braking devices, using the reverse direction for speed control, and daily inspections are surrounded by myth and mystery in the workplace.

Publish date: July 10, 2003

Tech cell: Safety


Venturing Into the World of 3-D Die Design: 10 questions to ask to make an informed decision

2-D, or not 2-D; that is the question. Whether 'tis nobler to venture out into a brisk, bold, new world of 3-D or to stick with old, reliable methods in 2-D.

Publish date: March 11, 2004

Tech cell: Tool and Die


The Bold in Arches: Pipe fabricator uses induction bending to create roof truss assemblies

The phraseobstructed viewis probably most connected with older sports stadiums. For example, at Wrigley Field in Chicago, depending on where your seat is, watching Sammy Sosa in action in right field might be replaced by a view of a rusting steel girder.

Publish date: June 26, 2003

Tech cell: Tube and Pipe Fabrication


Al GMAW: CC or CV?

For about 40 years, a great debate in welding is whether to use constant-current or constant-voltage power supplies when using gas metal arc welding on aluminum. Constant-current power supplies made sense 30 years ago and are still used in some applications today, but for most applications, constant-voltage power supplies are suitable for gas metal arc welding aluminum.

Publish date: June 12, 2003

Tech cell: Aluminum Welding