A Study of Residual Stress Patterns in Temper/Roller-Leveled, Cut-to-Length Plates
(Room 102A)
09 May 17
10:00 AM
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10:30 AM
Tracks:
Cold Mill Modeling
A series of tests have been conducted to study the nature of residual stress patterns and relaxed flatness in parts cut from temper/roller-leveled, cut-to-length, heavy-gauge plates. Testing was performed on both 2-high and 4-high temper mills, with both tight-line and tension-decoupled interconnects to the levelers. The results indicate a through-thickness stress yielding/reprogramming by the temper mill may not be in effect, and that a high-strength, compacted “crust” constrains the retained, non-yielded interior stresses. This paper examines the approach taken, the results and how these implications direct the operational concepts of the line.