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LIU Jiansheng
WANG Bing
TIAN Jihong
College of Materials Science
& Engineering,
Taiyuan University of Science and
Technology,
Taiyuan 030024, China
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SIMULATION OF HOLE FLANGING process ON
HEAVY CYLINDERS
AND PARAMETER OPTIMIZATION
Abstract:
The forming mechanism of hole flanging on a thick-wall heavy cylinder forging is simulated by DEFORM3D. The cylinder is 4 390 mm in diameter and 390 mm in thickness. The results show that the compound deformation with bending and expanding happens in the process of hole flanging. The diameter of pre-hole of the workpiece is one of the key parameters in the process of hole flanging. The optimal diameter is obtained for reverse-conical hole of average diameter 40 mm by simulation of hole flanging process on 5 pre-holes with different diameters and 3 pre-holes with different shapes. The results can provide the scientific base for engineering application of the process.
Key words:
Hole flanging process Thick-wall cylinder Numerical simulation Pre-hole |