EMBEDDING OF INTERNAL FLUID PRESSURE INVESTIGATION IN MANDREL THROUGH TUBE ROTARY DRAW BENDING OF THIN-WALLED TUBES WITH CRITICAL BEND RADIUS

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SOLEIMANI JABER; ELYASI MAJID; HOSSEINZADEH MORTEZA

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:9 Page(s): 287-297

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Title

EMBEDDING OF INTERNAL FLUID PRESSURE INVESTIGATION IN MANDREL THROUGH TUBE ROTARY DRAW BENDING OF THIN-WALLED TUBES WITH CRITICAL BEND RADIUS

Author(s)

SOLEIMANI JABER | ELYASI MAJID | HOSSEINZADEH MORTEZA | Issue Writer Certificate

Keywords

ROTARY DRAW BENDINGQ1

MANDRELQ1

INTERNAL FLUID PRESSUREQ1

FINITE ELEMENT SIMULATIONQ1

Abstract

Nowadays, thin-walled tube bending (D/t ³20, D-tube diameter and t-tube thickness) in the critical bend ratio (R/D£2, R bend radius) is a widely used manufacturing process in the aerospace industry, automotive, and other industries. During tube bending, considerable cross-sectional distortion and thickness variation occurs. The thickness increases at the intrados and reduces at the extrados. Also, in some cases, when the bend die radius is small, wrinkling occurs at the intrados. In industry, the MANDREL is used to eliminate wrinkling and reduce cross-sectional distortion, the choice of the MANDREL depends on tube material, bending angle, radius tube and bending radius. However, in the case of a close bend die radius, using the MANDREL is avoided. Because in addition to the cost of the process, with the MANDREL the thinning of the wall increases at the extrados and this is undesirable in the manufacturing operation.So, in the present study, with regard to development of tube hydroforming, INTERNAL FLUID PRESSURE is used instead of the MANDREL. Therefore, the purpose of the feasibility study, observation and analysis of the formation of tube bending process, the tube ROTARY DRAW BENDING process with two of the MANDRELs and the INTERNAL FLUID PRESSURE is simulated by software ABAQUS.

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APA: Copy

SOLEIMANI, JABER, ELYASI, MAJID, & HOSSEINZADEH, MORTEZA. (2016). EMBEDDING OF INTERNAL FLUID PRESSURE INVESTIGATION IN MANDREL THROUGH TUBE ROTARY DRAW BENDING OF THIN-WALLED TUBES WITH CRITICAL BEND RADIUS. MODARES MECHANICAL ENGINEERING, 16(9), 287-297. SID. https://sid.ir/paper/179764/en

Vancouver: Copy

SOLEIMANI JABER, ELYASI MAJID, HOSSEINZADEH MORTEZA. EMBEDDING OF INTERNAL FLUID PRESSURE INVESTIGATION IN MANDREL THROUGH TUBE ROTARY DRAW BENDING OF THIN-WALLED TUBES WITH CRITICAL BEND RADIUS. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(9):287-297. Available from: https://sid.ir/paper/179764/en

IEEE: Copy

JABER SOLEIMANI, MAJID ELYASI, and MORTEZA HOSSEINZADEH, “EMBEDDING OF INTERNAL FLUID PRESSURE INVESTIGATION IN MANDREL THROUGH TUBE ROTARY DRAW BENDING OF THIN-WALLED TUBES WITH CRITICAL BEND RADIUS,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 9, pp. 287–297, 2016, [Online]. Available: https://sid.ir/paper/179764/en

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