Jianpeng Dong's research while affiliated with Chongqing University and other places
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Publications (8)
The existence of geometric error (GE) of the grinding machine leads to a great decrease in the accuracy of worm dressing and face gear grinding. Currently, scarce researches consider the influence of GE of the grinding machine on the tooth surface normal error (TSNE) of face gears in the whole process from worm dressing to face gear grinding. For s...
The surface residual stress significantly influences the performance of gears. The residual stresses of different grinding positions on the gear surface are different. Focusing on the gear profile grinding process, the residual stress distribution of gear tooth flank is investigated. To measure the residual stress of gear tooth accurately, a specif...
As a crucial component of the spent fuel, the stainless steel thin-walled tube would be cut into segments with dozens of millimeters in length during the closed fuel cycle. The high ductility and malleability of the stainless steel material bring great challenges to shear tools. Thus, it is worthwhile to investigate the tube shearing process. Howev...
The SUS304 stainless steel thin-walled tube (SUS304 tube) is an important part of the simulated spent fuel assembly (SSFA). During the shearing process, owing to the high ductility and malleability of the SUS304 tube, the local stress concentration easily occurs on the shear tool, resulting in such damages as tool tipping and breaking. However, the...
Citations
... Han et al. [10] used a multiaxis linkage method to achieve topology modification on a CNC grinding machine, a quartic polynomial function is used to represent the axial feed of the tool. Wang et al. [11] proposed a tooth surface correction method for the face gear based on the CNC gear grinding machine. A highorder polynomial was used to set the linkage relationship of the machining axis. ...
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... Flexsplines used in harmonic gear reducers are typically characterized by a large number of teeth, small modulus, and poor stiffness. It is challenging to measure flexsplines with the traditional gear measuring center for three main reasons [4][5][6][7]: (1) the diameter of the probe is typically larger than 0.3 mm, and it cannot measure flexsplines with a modulus of 0.3 or less, (2) the measuring force is large, which will cause deformation of the flexspline, and (3) the measuring efficiency is low, and the measuring time is long, especially when measuring flexsplines with a large number of teeth [8][9][10]. Therefore, the measurement of flexsplines using non-contact methods is a promising technological approach [11][12][13]. ...
... Zhou et al. [14] introduced a simplified method for dressing the grinding worm surface with one path and proposed a closed-loop grinding method of "machining-measurementmodification" to increase the machining accuracy for spur face gears. Wang et al. [15] established the geometric error of machine tool and tooth surface normal error model to disclose the mapping laws between them. By identifying and analyzing the crucial geometric errors, the machining accuracy of face gear could be significantly improved after modifying the machine settings. ...
... The grinding temperature and residual stress of the cycloidal gear were obtained using the finite element method, and the influences of grinding parameters on residual stress distribution were discussed. By analyzing the variation of chip geometry, Xiao et al. [8] proposed a model to obtain the residual stress distribution in gear grinding. The effects of chip cross-sectional area variation caused by different grinding parameters on residual stress of gear surface were revealed in this model. ...
... Moreover, the complex macroscale stress state in spinning also play a great role in damage evolution and fracture formation 19 . By integrating a modified Gurson-Tvergaard-Needleman model into FE simulation, Dong et al. 20 found that the shearing process greatly affects the damage and fracture mechanism of SUS304 tube. All of these show that the damage and fracture of titanium alloy in hot spinning is a very complex phenomenon simultaneously affected by microstructure evolution and macroscale stress state. ...
