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GH4169合金连续驱动摩擦焊接过程三维数值模拟

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Indexed by:期刊论文

Date of Publication:2005-12-30

Journal:塑性工程学报

Included Journals:PKU、ISTIC、CSCD、Scopus

Volume:12

Issue:6

Page Number:109-113

ISSN No.:1007-2012

Key Words:摩擦焊接;数值模拟;三维模型;有限元

Abstract:在考虑摩擦面上环向摩擦力对摩擦焊接过程影响的基础上,建立了连续驱动摩擦焊接过程的三维刚塑性热力耦合有限元模型.计算了GH4169合金棒材连续驱动摩擦焊接过程中的瞬态温度场、应力场及变形场,预测了焊件轴向缩短量.采用热电偶测温技术对摩擦焊接头外表面焊接过程的温度变化进行了实时测量,并测量了飞边形状和轴向缩短量.结果表明,摩擦焊接头的温度场、飞边形状和轴向缩短量的计算结果和实验结果吻合较好.模型有助于制定合理的焊接工艺规范.

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