Articles written by Hanhui Li

Worthington Armstrong Venture (WAVE)

9 Old Lincoln Highway
Suite 200
Malvern, PA 19355
phone: 610-722-1232

Results: 4

	Understanding bending, moving material in roll forming Roll forming is a matter of two processes: shaping material using localized deformation with a large amount of material movement (in other words, bending and moving the material). Localized deformation (bending) is a permanent bend with a slight thickness reduction at the bending line. Material... Publish date: September 30, 2008
	Edge treatments for roll formed parts According to OSHA and BLS data, safety in metal manufacturing has been improving. Workplace injuries and injury severity fell from 2000 to 2006. The biggest improvements have been in severe injuries, so minor injuries have gotten more attention lately. One such minor injury is cutting. Roll... Publish date: May 13, 2008
	Roll form tooling design for air bending Several techniques are used commonly to reduce profile distortion when air bending with a roll former. These include small-radius forming, false bending, vertical side rolls, and angle side rolls. Publish date: April 10, 2007
	End distortion on roll formed parts Roll-formed parts are subject to end distortion when the parts are cut at the end of the roll-forming line. Understanding the forces that contribute to end distortion is the first step to balancing the forces and eliminating end distortion. Publish date: December 13, 2005