首页|TiAl合金电解加工系统的非线性动力学特征与加工表面形貌之间的映射关系

TiAl合金电解加工系统的非线性动力学特征与加工表面形貌之间的映射关系

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电流密度的大小和波动形态一直是电解加工过程的一个重要的参数,但其波动形态与电解加工表面微观形貌之间映射关系却一直没有得到重视.采用相空间重构、递归图及量化参数分析TiAl合金电解加工过程电流密度的非线性动力学行为,利用粗糙度与缺项量化表征加工表面微观形貌.研究发现,电解液压力和脉冲频率均是影响电解加工过程的非线性动力学行为和加工表面微观形貌的显著因素,当电解液压力为 0.35 MPa或脉冲频率为 300 Hz时,TiAl合金电解加工系统结构最简单、稳定,加工表面最光滑、均匀,电解加工系统的结构特征和加工表面的微观形貌之间存在良好的匹配关系.
Mapping Between Nonlinear Kinetic Characteristics of TiAl Alloy Electrolytic Machining Systems and Machined Surface Morphology
s:The magnitude and fluctuation pattern of the current density has been an important parameter of the electrolytic machining process,but the mapping relationship between its fluctuation pattern and the microscopic morphology of the elec-trolytically machined surface has not received much attention.Nonlinear kinetic behavior of current density during electrolytic machining of TiAl alloys using phase space reconstruction,recurrence plot and recurrence quantification analysis.And the micro-morphology of the machined surface is quantitatively characterized using roughness and lacunarity.It was determined that both electrolyte pressure and pulse frequency were pivotal factors influencing the nonlinear kinetic behavior of the elec-trolytic machining process and the micromorphology of the machined surface.At an electrolyte pressure of 0.35 MPa or a pulse frequency of 300 Hz,the structure of the TiAl alloy electrolytic machining system is optimized for simplicity and stability.This configuration also yields the smoothest and most homogeneous machined surface,demonstrating a favorable alignment between the structural characteristics and the electrolytic machining system and the micro morphology of the machined surface.

TiAl alloyselectrolytic machining process systemnonlinear kinetic behaviorsurface topography

李凌、陈年、龚晨、李文元、廖翠姣

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湖南工业大学 机械工程学院,株洲 412007

TiAl合金 电解加工系统 非线性动力学 表面形貌

国家自然科学基金湖南省自然科学基金项目

220720402020JJ4271

2024

长春理工大学学报(自然科学版)
长春理工大学

长春理工大学学报(自然科学版)

CSTPCD
影响因子:0.432
ISSN:1672-9870
年,卷(期):2024.47(5)