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About Journal
Journal:Journal of Plasticity Engineering
Establishment Year:1994
Administrator:China Association for Science and Technology
Sponsor:Chinese Mechanical Engineering Society
Publishing Period:Monthly
CN:11-3449/TG
ISSN:1007-2012
Postal Distribution Code:80-353
Tel.:010-62912592/82415079
E-mail:sxgcxb@263.net
Journal of Plasticity Engineering mainly publishes original research papers of advanced and innovative fundamental research and engineering application in the field of plastic forming and its cross-discipline.
The journal has been included in many important national and international indexing systems such as Core Journals of China, Chinese Science Citation Database(CSCD), Source Journals for Chinese Scientific and Technical Papers and Citations, RCCSE Chinese Core Academic Journals, CSAD, SCOPUS, American Chemistry Abstract(CA), Cambridge Scientific Abstracts(CSA), JST China, etc.
The purpose of Journal of Plasticity Engineering is to enliven the academic ideas, improve the academic theory, strengthen the academic communication, serve for improving the foundation level of domestic plasticity engineering and establish the status of domestic plasticity engineering in world science and technology lineup.
Identification and Treatment of Academic Misconduct
To protect the rights of readers and authors and to maintain the quality and reputation of Journal of Plasticity Engineering, the paper will be rejected and treated accordingly if it is identified as academic misconduct after strictly testing and screening in the process of publication. The specific testing and identifying process and treatment methods are as follows:
Research progress and prospect on dimensional accuracy analysis and control methods for spatial pipe forming
YU Hai-dong;CHENG Jia;GAO Chang;ZHAO Yong;GU Bin;Pipes are critical components in aerospace, aviation and marine equipments, and its dimensional accuracy of forming directly affects the overall quality, service stability and reliability of the equipment. The establishment of accurate prediction methods and effective control strategies for pipe forming dimension is essential for improving the assembly performance of pipe systems and the service performance of equipment. Firstly, the parametric representation methods of pipe spatial configuration were discussed from the perspective of topological configuration of pipe, providing foundation for dimensional accuracy analysis. Then, metal pipe bending forming techniques were discussed systematically across multiple dimensions, including geometric dimension characteristics, material properties and application requirements. The existing analysis approaches for the geometric dimension accuracy of pipes were discussed, including the springback, elongation, key point deviation of single-bending pipe, and the configuration prediction of whole multi-bending pipe. Furthermore, the control and compensation methods for pipe forming accuracy were discussed for bending with and without allowance. Finally, the challenges in predicting and controlling overall pipe forming dimensional accuracy were analyzed, and future research directions were prospected aiming at the development tendency of increasing complexity of pipe spatial structures and the growing demand for assembly accuracy in aerospace, aviation and marine industries.
Study on uniformity regulation of microstructure and properties of 7050 aluminum alloy die forgings
CUI Ming-liang;ZHOU Yao;XING Zi-han;TANG Zi-yang;HU Jian-liang;ZHANG Peng;The evolution laws of microstructure and mechanical properties of H-shaped 7050 aluminum alloy die forgings were investigated using surface plastic accumulation deformation process and solid solution+retrogression and re-aging(RRA) heat treatment processes. The uniformity of grain structure and mechanical properties of forgings was improved, and the optimal process for regulating the uniformity of microstructure and properties of H-shaped 7050 aluminum alloy die forgings was achieved. The results indicate that after the surface plastic accumulation deformation experiment and solid solution treatment, the microstructure uniformity of forging is significantly improved, with the optimal solid solution process of 470 ℃ for 45 min. Under the optimal solid solution process conditions of 470 ℃ for 45 min, the microstructure evolution and hardness variation of the rib and center regions of the H-shaped 7050 aluminum alloy die forgings during the RRA process were studied. Finally, the influence of retrogression regime on the mechanical properties and fracture morphology of the forgings was examined. It is found that the best mechanical properties are achieved for both the rib and web regions, both at the surface and center, under the RRA process of 120 ℃ for 24 h+190 ℃ for 5 min+120 ℃ for 24 h.
Evolution prediction of grain size in axle radial forging based on temporal neural network
HU Zhi-wen;REN Ming-ming;XIANG Hua;WU Hai-ying;ZHUANG Xin-cun;To solve the problem that it is difficult to predict and control the grain size of axle forgings during radial forging process because of the large size and long working procedure, and the finite element calculation consumes a lot of time, Forge finite element software was used to simulate the whole process of radial forging of axle, and the data set of the input features of the process parameters of the combination of mixed non-temporal data and temporal data and the output features of the grain size and position coordinate were obtained. The prediction model of the grain size evolution of axle radial forging was constructed by using temporal neural network. After training and evaluation, the model can effectively predict the grain size evolution of axle radial forging process outside the training data, and the results are similar to the finite element simulation results. Therefore, this model can meet the need of engineering field to predict grain size evolution in radial forging process quickly.