金属切削刀具动力吸振研究综述

Research review on dynamic vibration absorption in metal cutting tools

  • 摘要: 为了探究国内动力吸振刀具的研究方向和进展,概述了金属切削过程中的振动与减振方法。从无阻尼动力吸振原理出发,阐述了吸振技术的定点理论、最优同调与最优阻尼。介绍了扩展定点理论与质量感应法,总结了动力吸振器质量、刚度和阻尼3个关键因素的研究现状。讨论了二重及多重动力吸振器、主动型动力吸振器、混合型动力吸振器。列出了国外知名刀具公司动力吸振刀具实例和国内深孔加工吸振刀具。提出建立科学、完备的吸振刀具数据库,以适应行业需求。认为通过深度学习智能提取振动特征,自适应控制主动型、混合型动力吸振刀杆是实现智能制造的研究方向。

     

    Abstract: To investigate the research directions and advancements in domestic dynamic vibration-absorbing cutting tools, vibrations in metal cutting processes and damping methods were summarized. Based on the principle of undamped dynamic vibration absorption, the fixed-point theory, optimal tuning, and optimal damping of vibration absorption technology were elaborated. The extended fixed-point theory and mass induction method were introduced, followed by a summary of current research on three key factors of dynamic vibration absorbers, namely mass, stiffness, and damping. Discussions were conducted on dual and multiple dynamic vibration absorbers, active dynamic vibration absorbers, and hybrid dynamic vibration absorbers. Examples of dynamic vibration-absorbing tools from internationally renowned tool manufacturers and domestic deep-hole machining vibration absorbers were listed. The establishment of a scientific and comprehensive database for vibration-absorbing tools was proposed to meet industry demands. It is suggested that intelligent extraction of vibration characteristics through deep learning and adaptive control of active and hybrid dynamic vibration-absorbing tool holders represent key research directions for smart manufacturing.

     

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