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The Iron & Steel Technology
David L. Lawrence Convention Center
(AISTech 2013)
 
 

Design of Complicated Roll Passes with Roll Pass Software

Bingji (Benjamin) Li
Metal Pass LLC.
www.metalpass.com
301 1/2 S. Winebiddle St, Pittsburgh, PA 15224
bli@metalpass.com

Key words: hard-to-design roll pass, roll pass software, project, stainless steel, interstand tension

ABSTRACT

Hard-to-design roll passes contain large number of constrains such as fewest passes, smallest groove-width, lowest roll diameter, and most types/numbers of products from fewest billet sizes. Extra complexity exists in multiple pass sequences diamond-square and round-oval, and for high-strength and high-spread materials. The design requires large number of trial-and-error attempts, each considering steel grade, speed, and temperature, etc. for accurate prediction of width, force and forward-slip, etc. This report illustrates real-world projects for hard-to-design roll passes, such as those for POSCO stainless steels and for rolling requiring interstand tension. Metal Pass Auto-Form and Free-Form programs are used in the designs.

SUMMARY



 


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