先進高強度鋼管彎管研究

Study on bending process of Advanced high strength steel tube

陳逸群(Yi-Chun-Chen) ； 李明富(Ming-Fu-Lee)

《鍛造》 23卷2期 (2014/07) Pp. 24-29

摘要

因應輕量化需求，先進高強度鋼板已經被廣泛應用於汽車結構件，國際間也進行開發使用高強度鋼管材成形。針對590∼980MPa等級鋼種，國內尚未進行系統性的研究及缺乏彎管設計的評估準則，本研究選擇兩種汽車業常用之彎管方式，壓彎及旋轉拉彎，進行CAE模式的建立，探討各種參數對於彎管缺陷及厚度之影響，預期能建立彎管預成形上的設計準則，並減少試模及預先評估後續液壓成形製程之可行性。

關鍵字

先進高強度鋼 ； 彎管 ； 管件液壓成形 ； 壓彎 ； 旋轉拉彎

並列摘要

Because of the demand for lightweight, advanced high-strength steel has been widely used in automotive structural parts. The international companies developed lightweight high strength steel tubes for automotive structures. However, there had been no systematic research and design criteria of tube bending technology in domestic industries for 590-980MPa steel. Therefore, this paper selected two tube bending ways that were commonly used in automotive industry, press bending and rotary draw bending, to establish CAE analysis mode. All the parameters which affect the thickness distribution and bending defects were discussed. This study expected to establish design criteria for AHSS tubular bending technology, reduced die tryout and development period, and predicted the possibility of subsequent hydroforming process.

並列關鍵字

Advanced high strength steel(AHSS) ； Tube bending ； Tube hydroforming ； Press bending ； Rotary draw bending