Experiment and analytical model based on slab method for drawing process of core filled tube. (1st January 2020)

• Record Type: Journal Article
• Authors: Qi, Junlong; Liu, Xianghua; Gao, Haitao; Chen, Jingqi; Hu, Xianlei; Yan, Shu
• Is Part Of: International journal of mechanical sciences. Volume 165(2020)
• Publication Date: 2020-01-01
• Subjects: Core filled tube -- Slab method -- Drawing force -- Wall thickness -- Relative density; Mechanical engineering -- Periodicals; Génie mécanique -- Périodiques; Mechanical engineering; Maschinenbau; Mechanik; Zeitschrift; Periodicals; 621.05
• DOI: 10.1016/j.ijmecsci.2019.105152
• Languages: English
• ISSNs: 0020-7403

Abstract

Highlights: Core filled tube use blast furnace slag as core material; change waste into wealth. Deformation law for composite clad rod of continuum and granular material. Equations for wall thickness and core density of COFT based on slab method. Abstract: Experimental and numerical analyses were performed to predict the deformation parameters of functional powder/solid composite clad rods. There has been a lack of theoretical equations for quantitative analyses of parameters during the deformation of structural powder/solid composite clad rods such as a core filled tube (COFT). In this study, a slab method was adopted to analyze the COFT drawing process, and static equilibrium equations were developed and solved to determine the drawing force, wall thickness and core density. The prediction results of the new equations were compared with experimental results, revealing good agreement between them. Both the equations and the experiments showed the existence of an ultimate relative density of the core material during the COFT drawing process. The influences of the process parameters on the compaction factor and ultimate relative density of the core material were determined using the new equations. Graphical abstract: Image, graphical abstract