Effect of Thermal Drilling Condition on Burring in Ultrahigh Strengh TRIP Sheet Steels

摘要：

Effect of thermal drilling condition on burring of 0.2C-(1.0-2.5)Si-(1.0-2.0)Mn (mass％) ultrahigh strength TRIP-aided sheet steels with polygonal ferrite matrix (TDP steels) was investigated for automotive applications.The combined rotational and downward force of the thermal drilling tool bit created friction heat. The height of the bushing was roughly 3 to 4 times the initial sheet thickness.The bushings are ideal for thread applications,as the strength of threads was significantly increased. We found that the burring and tapping contributed to the improvement of the tensile strength of 980 MPa class TRIP steel.

关键词： TRIP Sheet Steel Burring Tapping Thermal Drilling

作者: Akihiko Nagasaka Takuya Matsushima Shun Hasebe Koh-ichi Sugimoto Toshio Murakami

作者单位: Nagano National College of Technology,716 Tokuma, Nagano,Nagano 381-8550 Japan Shinshu University,4-17-1 Wakasato,Nagano,Nagano 380-8553 Japan Material Design Research Section,MaterialResearch Laboratory,Kobe Steel,Ltd.,1-5-5 Takatsukadai,Nish

会议类型: 国际会议

会议名称: The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)

会议地点: 北京

会议语种:英文

页码: 277-280

在线出版日期: 2011-05-31（万方平台首次上网日期，不代表论文的发表时间）