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首页> 外文OA文献 >An Experimental Study of Seizure Phenomena at Welded Interface of Steel Friction Weld -Study of Joining Mechanism of Friction Welding (Report 5)-
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An Experimental Study of Seizure Phenomena at Welded Interface of Steel Friction Weld -Study of Joining Mechanism of Friction Welding (Report 5)-

机译：钢摩擦焊焊接界面癫痫现象的实验研究 - 摩擦焊接合机理研究（报告5） -

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摘要

The present paper describes the seizure phenomena at welded interface during steel pipe friction welding. The relationship between friction speed and initial torque was clarified, and the relationship between relative speed and seizure temperature at the welded interface was estimated from the experimental results. The seizure phenomenon of the base metal was clarified by a constant temperature friction test in which he friction surfaces were rubbed together at various temperatures and loaded pressures in an electric furnace. Then, the seizure temperature at the friction surface was obtained by constant temperature friction tests. The experiments produced the following summarized results. (1) The friction torque curve had wear and seizure stages until the initial torque when pipes were welded at low friction speed. The wear stage time decreased with increasing friction speed. The initial torque decreased with increasing friction speed when pipes were welded at the same friction pressure, and increased with increasing friction pressure. (2) The seizure temperature at the welded interface was calculated by using the relationship between the torsional shear strength of base metal at its seizure temperature and the measured initial torque. The seizure temperature for a low relative speed at the welded interface was lower than that for a high relative speed. (3) The maximum friction torque increased with increasing friction temperature at the same loaded pressure, and they increased with increasing loaded pressure at the same friction surface temperature by constant temperature friction tests. (4) The friction surface of the base metal began to seize when loaded pressure and friction surface temperature reached or exceeded 30 Mpa at 423K, and 90 Mpa at 323K, respectively.
机译：本文描述了钢管摩擦焊接过程中焊接界面的咬合现象。弄清了摩擦速度与初始扭矩之间的关系，并根据实验结果估算了相对速度与焊接界面咬合温度之间的关系。母材的咬合现象通过恒温摩擦试验得以澄清，在该试验中，在各种温度和负荷压力下，在电炉中将摩擦面摩擦在一起。然后，通过恒温摩擦试验获得摩擦表面的咬合温度。实验得出以下总结结果。 （1）摩擦扭矩曲线具有磨损和咬合阶段，直到以低摩擦速度焊接管道时的初始扭矩为止。磨耗时间随着摩擦速度的增加而减少。当在相同的摩擦压力下焊接时，初始扭矩随着摩擦速度的增加而减小，并随着摩擦压力的增加而增加。 （2）利用母材的咬合温度下的扭转剪切强度与测定的初始转矩之间的关系，算出焊接界面的咬合温度。焊接界面处相对速度较低时的咬合温度低于相对速度较高时的咬合温度。 （3）在相同的负荷压力下，最大摩擦转矩随摩擦温度的升高而增加，在相同的摩擦表面温度下，最大摩擦转矩随负荷压力的升高而增加。 （4）当加载压力和摩擦表面温度分别达到或超过423K的30 Mpa和323K的90 Mpa时，母材的摩擦表面开始咬住。

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