Prediction of formability of electric resistance welded high-strength steel tubes on basis of accurate evaluation of work-hardening behavior

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420737
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Kyoto University
• Principal Investigator: Takuda Hirohiko 京都大学, エネルギー科学研究科, 教授 (20135528)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ロール成形 / 高張力鋼板 / 電縫鋼管 / 加工硬化特性 / 環境材料 / 有限要素法

Outline of Final Research Achievements

The purpose of the present study was to understand the deformation characteristics, including work-hardening behavior, of electric resistance welded steel tubes and to develop procedures to evaluate and to predict the characteristics. As a result of the study, the effect of the deformation history during manufacturing processes of tubes on the deformation behavior of tubes was revealed in detail. Experimental and numerical procedures to evaluate easily the deformation characteristics were also proposed. Moreover, in order to improve the formability of the tubes, the effect of the deformation characteristics of tubes on the formability was also discussed.

Free Research Field

塑性加工学