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Study on Morphology of Deformation of Inclusions in Upsetting Process

Author: ZhouShuZuo
Tutor: LiWeiMin
School: Yanshan University
Course: Materials Processing Engineering
Keywords: Upsetting Mixed Thermal coupling Numerical Simulation Large forgings
CLC: TG316.2
Type: Master's thesis
Year: 2010
Downloads: 122
Quote: 3
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Abstract


With the rapid development of modern industry , heavy machinery manufacturing industry to provide quality forgings . Large Binglei forgings in large forgings occupies a large proportion of its internal quality requirements are very high . Will cause great economic losses due to the high cost of production , once the end-of-life . Inclusions has been plagued by product quality defects . Especially plastic inclusions inclusions defects become larger flakes due to axial compression deformation in the upsetting process , resulting in excessive testing . In this paper, the rigid-plastic finite element theory is based on modeling , use deform2d , deform3d software upsetting process was simulated . Mainly reflected in : (1) the tablet upsetting cylinder and tablet upsetting inclusion cylinder structure analysis and thermal coupling analysis, research upsetting temperature difference , friction forgings and mixed deformation . ( 2 ) for the rough analysis of the tapered plate upsetting type of cone angle and the type of the contact with the specimen frustum diameter of inclusions deformation . ( 3 ) by simulation of six different upsetting solution , given the type of the program process , the rough internal deformation process , the internal strain distribution of inclusions and internal radial dimension changes with the amount of reduction . (4) similarity theory based on qualitative physical tests , and the results of physical tests and numerical simulation results were compared , we can see the results of numerical simulation and physical findings consistent , rigorous proof of the theory of numerical analysis .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal pressure processing > Forging, forging and blacksmith > Forging process > Free forging (non- forged )
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