Home   |   About Journal   |   Editorial Board   |   Instruction   |   Publication Ethics Statement   |   Subscriptions   |   Contacts Us   |   Chinese
  Office Online  
    Submission Online
    Peer Review
    Editor Work
    Editor-in-chief
    Office Work
  Journal Online
    Accepted
    Current Issue
    Advanced Search
    Archive
    Read Articles
    Download Articles
    Email Alert
    
Quick Search  
  Adv Search
2021 Vol. 64, No. 14
Published: 2021-07-15
FORUM
RESEARCH
C0NTENTS
COVER STORY
APPROACHING SCIENCE
 
       FORUM
14 Analysis and Measurement on Damage Resistance to Impact of Aeronautical Composite Panels
YU Zhefeng, ZHU Qiao
DOI: 10.16080/j.issn1671-833x.2021.14.014
Firstly, the modeling principle, model classification and simplified analysis method of composite panels subjected to low velocity impact are addressed. The models of delamination threshold load are introduced, including models based on fracture mechanics, shear strength theory, as well as the improved model that takes account of the wrapping effect due to plate deflection. The delamination model of co-cured zone is presented. The working principles, data processing and use precautions of the dropping-weight-impact tester on composite panels are stated. Finally, the limitation in the current technology of impact-damage-resistance test and the development trend are discussed.
2021 Vol. 64 (14): 14-20 [Abstract] ( 174 ) HTMLNew PDF (3079 KB)  ( 454 )
       COVER STORY
22 Research and Application Progresses of Thin-Ply Carbon Fiber Reinforced Polymer Matrix Composites
QIU Chao, MA Xinqi, WANG Yazhen, GUO Ziyue, WU Haihong
DOI: 10.16080/j.issn1671-833x.2021.14.022
Thin-ply carbon fiber reinforced polymers (CFRP) have the advantages of light weight, good mechanical properties, good adaptability to complex shapes, strong designability, which are valuable characteristics in aerospace applications. From the views of the macro, meso and micro scales of CFRP laminates, the research progresses for the thinply effects on the basic problems of the laminate such as porosity, meso (micro) structural evolution and damage mechanism are reviewed, and the direct meanings of the important research conclusions to the development of thin-ply composites are analyzed in this paper. The controversial research results and related theoretical foundation are discussed. Furthermore, the applications of thin-ply CFRP structural parts in aircraft, foldable structures in satellite and large liquid fuel storage tanks are introduced.
2021 Vol. 64 (14): 22-31 [Abstract] ( 239 ) HTMLNew PDF (31995 KB)  ( 225 )
       FORUM
34 Microstructure Evolution of TC17 Alloy in Thermal Plastic Deformation Processes
WANG Xu, LI Siqing, DENG Yuting, HUANG Xu
DOI: 10.16080/j.issn1671-833x.2021.14.034
Constant strain rate isothermal compression in β phase region of TC17 alloy was employed to investigate the evolution of initial duplex microstructure. The deformation temperatures were arranged from 910℃ to 970℃ with an interval of 30℃, the height reductions were 0, 10%, 20%, 40%, 60% and 80%. The results show that there is no obvious flow-softening phenomenon in β phase region and discontinuous yielding phenomenon at high and low strain rate. The strain rate range of 0.1–1s–1 is beneficial for dynamic recrystallization, while the strain rate ranged from 0.001s–1 to 0.1s–1, no dynamic recrystallization occurs. The higher the deformation temperature and the height reduction in β phase region, the more sufficient the dynamic recrystallization is.
2021 Vol. 64 (14): 34-39 [Abstract] ( 77 ) HTMLNew PDF (9979 KB)  ( 61 )
40 Research on Heat Treatment Process of TiBw/TA15 Composite
LIU Yingying, FU Mingjie, WANG Fuxin, ZENG Yuansong
DOI: 10.16080/j.issn1671-833x.2021.14.040
The heat treatment process of solution aging and dual annealing of TiBw /TA15 composite after rolling in the (α+β) region was studied. During the solution treatment in (α+β) region, as the solution temperature increases, the primary α phase content decreases, the spherical secondary α phase content in the β transition tissue decreases, and the size increases. The secondary αs phase was separated with small needle α, and the microhardness value increases with the consolidation temperature in the (α+β) region. After solution treatment in the β region, composite matrix tissue is basketlike structure, β grain and α lath are small, and the overall microhardness of the composite material is relatively high. Solution time has little effect on the microstructure and hardness of composite materials. The size change of secondary α lath in the 650–750℃ temperature range, and the microhardness decreases slightly with the roughening of the lath. The dual annealing process of 990℃/0.5h/AC+900℃/1h/AC and 1100℃/0.5h/AC+900℃/1h/AC can significantly refine the α lath and improve the microhardness of the composite materials. TiB whiskers are stable phase during heat treatment, and the change of heat treatment process will not cause obvious changes in TiB whiskers. Changes of primary α phase content, secondary α phase size, β grain size and α lath size are the key factors affecting the microhardness of composite materials.
2021 Vol. 64 (14): 40-48 [Abstract] ( 95 ) HTMLNew PDF (24640 KB)  ( 60 )
49 Research on Process Simulation of Selective Laser Melting Forming Titanium Alloy Parts
WANG Weidong, LIU Jianguang, LIU Qian, HU Zhendong, ZHANG Jiazhen
DOI: 10.16080/j.issn1671-833x.2021.14.049
It plays an important role in optimizing the process parameters and improving the manufacturing success rate of the parts to carry out the process simulation research and analyze the residual stress and deformation of the parts before selective laser melting. In this paper, aviation goose-neck parts as the research object, the influence of forming attitude, support structure and laser power on the stress and deformation of aerospace part goose-neck was studied by using Inspire. The results show that the forming attitude has an important effect on the deformation and stress distribution of the part, a stronger support structure and a reasonable laser power are beneficial to reduce the deformation and stress of the part.
2021 Vol. 64 (14): 49-55 [Abstract] ( 118 ) HTMLNew PDF (22854 KB)  ( 136 )
56 Research on Surface Morphology Formation and Prediction of Titanium Alloy by Abrasive Belt Grinding
SONG Weiwei,HUANG Yun,XIAO Guijian,SONG Shayu,ZHANG Youdong
DOI: 10.16080/j.issn1671-833x.2021.14.056
Titanium alloy have excellent properties such as low density, high strength, and good oxidation resistance, which make them difficult to process. Abrasive belt grinding is an important method for precision machining of titanium alloy, which can obtain good machining accuracy and surface quality. A series of experimental studies were carried out on the surface roughness of TC17 titanium alloy under different process parameters, and the influence of feed speed, belt linear velocity and downward pressure on the surface roughness was explored. In order to predict surface features and other information more efficiently, corresponding software was developed. The experimental results show that the surface roughness first decreases and then increases as the belt linear velocity increases, and increases as the feed speed increases, while the downward pressure increases, the surface roughness value first decreases and then increases. The degree of fineness of the wear scar shows a trend of first increasing and then decreasing or first decreasing and then increasing with the process parameters. The prediction results of the developed software with a prediction error of less than 10% accounted for 92.19%, and the minimum error reached 0.35%.
2021 Vol. 64 (14): 56-62 [Abstract] ( 105 ) HTMLNew PDF (28320 KB)  ( 78 )
       RESEARCH
66 Energy Collection of Cutting Vibration Based on Piezoelectric Effect and Application of Damping Tools
YANG Yiqing,SHEN Rui,GAO Haoyang,HE Wanlin,ZHAO Hongjie
DOI: 10.16080/j.issn1671-833x.2021.14.066
The tool with large aspect ratio is widely used in machining workpieces with deep cavity and deep hole characteristics. With the increase of the suspension length, the equivalent stiffness of the tool decreases, which leads to strong cutting vibration. The design of large aspect ratio turning tool with built-in piezoelectric ceramic damper can transform the vibration of main structure into the vibration of damper mass and the electric energy output of piezoelectric ceramic, so as to improve the vibration reduction effect. The modal experiment shows that the resonance peak value of the damped tool is reduced by 80.1% compared with the original tool. Finally, several cutting experiments were carried out. After adding damper, the peak value of tool’s FRF decreased by 72%, and the surface roughness of the workpiece decreased by 67.2%. At the same time, the output voltage signal collected is 1.1–10.1V, which was closely related to the cutting vibration.
2021 Vol. 64 (14): 66-70/100 [Abstract] ( 103 ) HTMLNew PDF (4784 KB)  ( 315 )
71 Research and Application of CPS Basic Common Technology Platform for Aviation Product Manufacturing
Lü Ruiqiang, HOU Zhixia, DU Tingting, ZHANG Jia’e
DOI: 10.16080/j.issn1671-833x.2021.14.071
Aviation products have the characteristics of large number of parts, complex structures, multiple varieties, small batches, and highly flexible manufacturing procedure. It leads to complex organization and management for aviation production. Cost control and efficiency improvement are always key problems which aviation manufacturing enterprises need to deal with. This paper explores the application mode and forms an architecture of CPS in the aviation manufacturing industry. The construction methods and specific structure of CPS basic common technology platform are introduced. A typical production line for engine case assembly is selected to verify the application of tools and units in the platform. Results show that the research and development capabilities and product quality of aviation products are improved.
2021 Vol. 64 (14): 71-86 [Abstract] ( 135 ) HTMLNew PDF (3549 KB)  ( 537 )
79 Optimization of High-Temperature Alloy Milling Tool Geometry for Residual Stress Control
ZHU Weihua, WANG Zongyuan,ZHOU Jinhua,LU Chaofan
DOI: 10.16080/j.issn1671-833x.2021.14.079
With regard to the milling process of GH4169, the surface residual stresses under different tool structural parameters were obtained based on orthogonal experimental method. The initial weights and thresholds of the BP neural network were optimized using a genetic algorithm (GA) to improve the convergence speed and prediction accuracy of the model, and a method for applying the GA–BP model to predict the milling residual stress was proposed. The firefly algorithm (FA)–based method for process parameter optimization was investigated, and the GA–BP–FA parameter optimization model for milling residual stresses was established in combination with the GA–BP prediction model for multi-objective optimization of tool geometry parameters with the goal of simultaneously obtaining the minimum residual tensile stress/maximum residual compressive stress. The results show that the minimum residual tensile stress in the X– direction and the maximum residual compressive stress in the Y–direction can be obtained using the optimized tool geometry parameters.
2021 Vol. 64 (14): 79-86 [Abstract] ( 113 ) HTMLNew PDF (6324 KB)  ( 425 )
87 Current Situation and Prospect on Material and Manufacture Process of Foreign Aero-Engine Combustion Liner
LI Yulong, HONG Zhiliang
DOI: 10.16080/j.issn1671-833x.2021.14.087
Aero-engine combustion liners are subject to tough service environments, such as high temperature, high pressure, high thermal stress and vibration stress. As aero-engine performance is enhanced, combustion temperature is increased continuously, and thus it raises higher requirements on cooling structure, substrate material, and surface protection. Focused on foreign aero-engine combustion liner, this paper introduces structural design characteristics for top three manufacturers, and reviews applications of material and manufacture process. It reveals commonly used superalloys along with its properties, and processes of casting, sheet metal working, welding, coating, laser drilling. Finally, it describes prospects of combustion liner material and manufacture process, as well as latest progress and application of ceramic matrix composites.
2021 Vol. 64 (14): 87-94 [Abstract] ( 165 ) HTMLNew PDF (16098 KB)  ( 407 )
95 Shot Peening Numerical Simulation and Path Planning of TC4 Titanium Alloy Blade
SUN Hui
DOI: 10.16080/j.issn1671-833x.2021.14.095
Aiming at the problem that TC4 titanium alloy blade is easy to deform due to residual stress in shot peening process, numerical analysis and experimental study on shot peening process of titanium alloy blade were carried out. Firstly, the shot peening parameters of blade are determined. The corresponding relationship between shot peening speed and residual stress is found by shot peening simulation of single shot. The residual stress generated in shot peening process is compared by numerical simulation and actual detection, so as to determine the parameters such as shot peening speed. Then, in order to study the influence of different shot peening sequence on blade deformation, three shot peening path technologies are designed to realize the planning of blade shot peening path, and the reliability of the planning path is verified by experiments. The simulation and experimental results show that the deformation of the blade is mainly along the Y–direction after shot peening, and the deformation trend of the blade is from the inner arc side to the back arc side. The deformation degree of the blade varies with different shot peening paths. When the “back arc inner arc” shot peening method is adopted, the deformation in the Y–direction is the smallest, and the minimum value is 0.182mm. The deformation of blade is different with different shot peening paths. Finding an appropriate shot peening path can effectively reduce the blade’s shot peening deformation. Based on the simulation and shot peening path planning, a certain amount of pre-compensation is given in the machining process to make the blade reach the predetermined shape after shot peening deformation.
2021 Vol. 64 (14): 95-100 [Abstract] ( 132 ) HTMLNew PDF (5437 KB)  ( 182 )
  Notices
· 'Aeronautical Manufacturing technology ' is included in EI database
· China Science Citation Database (CSCD)
· Chinese S&T Journal Citation Reports (CJCR)
· World Journal Clout Index (WJCI) Report of Scientific and Technological Periodicals
· Supported in China Science and Technology Journal Excellence Action Plan
· Aeronautical Manufacturing Technology ranked No. 3 in Chinese S&T Journal Citation Reports (CJCR)
· High Quality Sci-tech Journal Classification Catalogue in Aerospace Field （2023）
· A Guide to the Core Journals of China (hosted by Peking University Library)
  Download
Copyright Transfer Agreement
  Links
22 AVIC Manufacturing Technology Institute
22 AVIC
Copyright © Editorial Board of Aeronautical Manufacturing Technology
Supported by: Beijing Magtech