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Abstract:
Tube axial
compressive precision forming containing free deformation is an advanced
precision forming process with good future that can be used for
producing parts with good flexibility, high efficiency, low consumption,
and high precision. However, the forming process including free
mechanism is complex and difficult to be described with accurate
quantitative relationships, so it is necessary to develop finite element
simulation system for study of tube axial compressive precision forming
process, Based on the thorough analysis of deformation mode, the
rigid-plastic finite element numerical model of forming process is
established and some key technology problems related to the simulation
are resolved. The numerical simulation system is developed. Experimental
research shows that the software system developed is reliable and
practical. It provides an effective approach to further and systematical
study of free deformation mechanism and law in tube axial compressive
precision forming process.
Key words:
Tube axial
compressing Precision forming Finite element method
Numerical simulation Free deformation
CLC No: TG386
国家自然科学基金资助项目. Received 20001202,
received in revised form 20010328
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