(燕山大学 国家冷轧板带装备及工艺工程技术研究中心,秦皇岛 066004)
摘 要: 为解决钛/铝复合轧制时变形不协调问题,对电磁感应加热和轧制过程进行了实验,实现了钛、铝两金属在温差约600 ℃以上的条件下轧制复合,并通过有限元模拟研究了板坯温度和压下率对钛/铝复合板的变形协调性能和结合强度的影响。结果表明:当钛板加热温度为850 ℃、压下率在30%~48%范围内时,随着钛板加热温度升高和压下率的增加,钛板和铝板的变形协调性得到较大改善。当钛板温度为850 ℃、轧制压下率为48%时,复合板结合强度达到77 MPa。
关键字: 钛/铝复合板;感应加热;轧制复合;协调变形;结合强度
(National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, China)
Abstract:In order to solve the problem of uncoordinated deformation of Ti/Al in composite rolling, the experiments were implemented on the process of electromagnetic induction heating and rolling, titanium and aluminum were rolled and combined under the temperature difference above 600 ℃, and the effects of plate temperature and reduction rate on deformation compatibility and bonding strength of Ti/Al composite plate were studied with finite element simulation. The results show that, when the heating temperature of titanium plate is 750-850 ℃, the reduction rate is 30%-48%, the deformation coordination of titanium plate and aluminum plate greatly improves with the increase of heating temperature and reduction rate on titanium plate. When the temperature of titanium plate is 850 ℃, the rolling reduction is 48%, the bonding strength of the composite plate reaches 77 MPa.
Key words: Ti /Al composite plate; induction heating; rolling compound; coordinate deformation; bonding strength