1M.Sc. Student, Chemical and Materials Engineering Department, University of Alberta, Edmonton, Canada.
2M.Sc. Student, Mechanical Engineering Department, University of Calgary, Calgary, Canada.
3Assistant Professor, Dept. of Industrial and Manufacturing Engineering, Wichita State University, Wichita, Kansas, USA
Abstract
Dimensional control of the work-piece in steel industry is of important interest. The main aspects in overcoming the thickness control are variations in material strength due to variations in chemical composition, work-piece temperature, reduction and the strain rate applied to the work-piece. In this paper based on the main parameters affecting the rolling force an attempt been made to give a more accurate prediction for the flow stress in a steel rolling finishing mill. Predicted values of the model are compared with those of the experimental values which are shown to be in good agreements
کنترل ابعادی قطعه کار در صنایع فولاد اهمیت ویژه‌ای دارد. چالش اصلی در کنترل ضخامت ورق تغییرات در مقاومت ماده به خاطر تغییرات در ترکیب شیمیایی ماده‌ی قطعه کار،کاهش ضخامت و نرخ کرنش اعمال شده به قطعه کار است. در این مقاله بر مبنای پارامترهای اصلی موثر در نیروی نورد، راه حلی برای پیش بینی هرچه دقیق‌تر تنش جاری در یک واحد نورد نهایی گرم شده است. مقادیر پیش بینی شده توسط مدل با مقادیر تجربی مقایسه شده‌اند که تطابق بسیار خوبی را نشان می‌دهد.
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