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Numerical simulation and physical analysis for dynamic behaviors of P/M TiAl alloy in hot-packed forging process 被引量:2
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作者 张伟 刘咏 +1 位作者 王丽 刘彬 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第4期901-906,共6页
The hot forging of large-scale P/M TiAl alloy billet deformation was investigated based on a joint application of Deform-3D-based numerical simulation and physical simulation techniques.The temperature dependence on t... The hot forging of large-scale P/M TiAl alloy billet deformation was investigated based on a joint application of Deform-3D-based numerical simulation and physical simulation techniques.The temperature dependence on the thermal and mechanical properties of the billet was considered and the optimum hot working temperature of packed TiAl alloy was 1150-1200 °C.Based on the simulation,the material flow and thermo mechanical field variables,such as stress,strain,and temperature distribution were obtained and the relationships of load—displacement and load—time were figured out.To verify the validity of the simulation results,the experiments were also carried out in a forging plant,and a pancake with diameter of 150 mm was obtained exhibiting a regular shape. 展开更多
关键词 TIAL hot packed forging numerical simulation physical simulation
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美国FORGE计划犹他州干热岩开发示范项目进展综述
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作者 张炜 金显鹏 +2 位作者 王海华 姚树青 邵明娟 《世界科技研究与发展》 CSCD 2024年第2期263-276,共14页
21世纪是全球能源获取方式发生重要变化的时代。现有以煤炭、石油、天然气等传统资源为基础的能源正在逐渐被风能、太阳能、生物质能、地热能等环境友好、低排放的绿色能源所取代。干热岩是一种不含原生水(或含少量水但不能流动)的高温... 21世纪是全球能源获取方式发生重要变化的时代。现有以煤炭、石油、天然气等传统资源为基础的能源正在逐渐被风能、太阳能、生物质能、地热能等环境友好、低排放的绿色能源所取代。干热岩是一种不含原生水(或含少量水但不能流动)的高温地热资源,可通过水力刺激改造形成增强型地热系统储层,从而提取数量相当可观的地热能。本文以美国能源部正在组织实施的FORGE计划犹他州干热岩示范项目为研究对象,综述了项目在场地地质条件表征、基础设施建设等方面取得的主要进展与成果,总结了项目在高温硬岩钻井、储层建造、微震监测等方面取得的广泛且深入认识,从统筹部署、组织实施、场地表征和设施建设、关键技术装备突破、数据共享等方面提出了值得我国借鉴参考的具体实践。 展开更多
关键词 干热岩 增强型地热系统 地热能前沿瞭望台研究计划 刺激改造 裂隙网络 诱发地震
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Effect of Zn/Mg/Cu Additions on Hot Cracking Tendency and Performances of Al-Cu-Mg-Zn Alloys for Liquid Forging 被引量:4
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作者 孙永根 杜之明 +2 位作者 SU Yanni CHENG Yuansheng LIU Yongwang 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2020年第1期176-182,共7页
During the process of liquid forging, a host of hot cracking defects were found in the Al-CuMg-Zn aluminum alloy. Therefore, mechanical tests and analyses by optical microscope, scanning electron microscope, and X-ray... During the process of liquid forging, a host of hot cracking defects were found in the Al-CuMg-Zn aluminum alloy. Therefore, mechanical tests and analyses by optical microscope, scanning electron microscope, and X-ray diffraction were performed to research the influences of zinc, magnesium, and copper(three main alloying elements) on hot cracking tendency and mechanical properties. It was concluded that all the three alloying elements exerted different effects on the performances of newly designed alloys. And the impact of microstructures on properties of alloys was stronger than that of solution strengthening. Among new alloys, Al-5 Cu-4.5 Mg-2.5 Zn alloy shows better properties as follows: σb=327 MPa, δ=2.7%, HB=107 N/mm^2, and HCS=40. 展开更多
关键词 liquid forging Al-Cu-Mg-Zn alloys mechanical properties hot CRACKING TENDENCY
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Preparation of Ni60-WC Coating by Plasma Spraying, Plasma Re-melting and Plasma Spray Welding on Surface of Hot Forging Die 被引量:5
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作者 王俊元 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2012年第4期640-643,共4页
In order to produce the hear-resistant inner layer of hot-forging die, the plasma spraying and plasma re-melting and plasma spray welding were adopted. Substrate material was W6Mo5Cr4V2, including 10%, 20%, 30% tungst... In order to produce the hear-resistant inner layer of hot-forging die, the plasma spraying and plasma re-melting and plasma spray welding were adopted. Substrate material was W6Mo5Cr4V2, including 10%, 20%, 30% tungsten carbide (WC) ceramic powder used as coating material to obtain different Nickel-based WC alloys coating. Micro-structure and micro-hardness analysis of the coating layer are conducted, as well as thermophysical properties for the coating layer were measured. The experimental results show that the coating prepared with 70%Ni60, 30%WC powder has the best properties with plasma spray welding, in which the micro-hardness can achieve 900HV, meanwhile it can improve the thermal property of hot-forging die dramatically. 展开更多
关键词 hot forging die plasma spraying plasma re-melting plasma spray welding thermo physical properties Ni60-WC
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STUDY ON DESIGN TECHNIQUES OF A LONG LIFE HOT FORGING DIE WITH MULTI-MATERIALS 被引量:4
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作者 X.J. Liu H.C. Wang D.W. Li 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2007年第6期448-456,共9页
A new design technique for the long life hot forging die has been proposed. By finite element analysis, the reason .for the failure of hot forging die was analyzed and it was concluded that thermal stress is the main ... A new design technique for the long life hot forging die has been proposed. By finite element analysis, the reason .for the failure of hot forging die was analyzed and it was concluded that thermal stress is the main reason for the failure of hot forging die. Based on this conclusion, the whole hot forging die was divided into the substrate part and the heat-resistant part according to the thermal stress distribution. Moreover, the heat-resistant part was further subdivided into more zones and the material of each zone was reasonably selected to ensure that the hot forging die can work in an elastic state. When compared with the existing techniques, this design can greatly increase the service life because the use of multi-materials can alleviate the thermal stress in hot forging die. 展开更多
关键词 hot forging die with multi-material finite element analysis thermal stress
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Tempering stability of Fe–Cr–Mo–W–V hot forging die steels 被引量:2
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作者 Yuan-ji Shi Xiao-chun Wu +1 位作者 Jun-wan Li Na Min 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2017年第10期1145-1157,共13页
The tempering stability of three Fe–Cr–Mo–W–V hot forging die steels(DM, H21, and H13) was investigated through hardness measurements and transmission electron microscopy(TEM) observations. Both dilatometer tests ... The tempering stability of three Fe–Cr–Mo–W–V hot forging die steels(DM, H21, and H13) was investigated through hardness measurements and transmission electron microscopy(TEM) observations. Both dilatometer tests and TEM observations revealed that DM steel has a higher tempering stability than H21 and H13 steels because of its substantial amount of M_2C(M represents metallic element) carbide precipitations. The activation energies of the M_2C carbide precipitation processes in DM, H21, and H13 steels are 236.4, 212.0, and 228.9 kJ/mol, respectively. Furthermore, the results indicated that vanadium atoms both increase the activation energy and affect the evolution of M_2C carbides, resulting in gradual dissolution rather than over-aging during tempering. 展开更多
关键词 TEMPERING stability hot forging DIE STEELS CARBIDE PRECIPITATION
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Ni60-SiC Coating Prepared by Plasma Spraying, Plasma Re-melting and Plasma Spray Welding on Surface of Hot Forging Die 被引量:3
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作者 王洪福 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2011年第4期715-718,共4页
In order to produce the hear-resistant inner layer of hot-forging die, plasma spraying and plasma re-melting and plasma spray welding were adopted. Substrate material was W6Mo5Cr4V2, including 10%, 20%, 30% SiC cerami... In order to produce the hear-resistant inner layer of hot-forging die, plasma spraying and plasma re-melting and plasma spray welding were adopted. Substrate material was W6Mo5Cr4V2, including 10%, 20%, 30% SiC ceramic powder used as coating material to obtain different Ni-based SiC alloys coating. Micro-structure and micro-hardness analysis of the coating layer were followed, as well as thermophysical properties for the coating layer were measured. The experimental results show that the coating prepared with 70% Ni60, 30% SiC powder has best properties with plasma spray welding, in which the micro-hardness can achieve 1100 HV, meanwhile can improve the thermal property of hot-forging die dramatically. 展开更多
关键词 hot forging die plasma spraying plasma re-melting plasma spray welding thermo- physical properties
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Analysis and Optimization on Factors Affecting Forming Quality of Half Axle Gears Warm Precision Forging 被引量:2
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作者 WANG Menghan CHEN Xihou ZHOU Jie 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2010年第1期110-114,共5页
Half axle gears is produced by precision forging popularly because of the advantages in minimum machining allowances, lower material consumption and good service properties. But the forming quality of precision forgin... Half axle gears is produced by precision forging popularly because of the advantages in minimum machining allowances, lower material consumption and good service properties. But the forming quality of precision forging is difficult to control. Many simulations and analysis of precision forging process were taken by previous researchers. But no concrete method is proposed to evaluate and optimize the forming quality of half axel gears. The primary purpose of this work is improving the forming quality of half axel gears by analyzing and optimizing the affected factors of forming quality. The enclosed-die warm forging process of half axle gears was developed, and a new type of die-set used on double action hydraulic press was brought forward. The main influential factors of precision forming quality were analyzed after the forming process had been simulated by using finite element method(FEM). These factors include die structure, web thickness and web position. A method used to evaluate the forming quality was established, which investigated the maximal forming load, the metal filling rate and the material damage factor. The FEM simulations of half axle gears precision forging were evaluated by this method. The results show that the best forming quality can be achieved when the punches were added with bosses, the web located at the middle plant of the gear, and the web thickness was 30 percent of the inner hole diameter. Verification experiments taking the above optimized parameters were performed on a 7.8 MN double action hydraulic press. The trial products were formed well. And their geometric precision meets the demand. The verification result shows that the optimization of the influential factors, according to the simulations and the evaluation method, can improve the forming quality. The new structure of precision forging die-set and the new evaluation method guarantee a high forming quality ofhalfaxel gears. 展开更多
关键词 warm precision forging half axle gears forming quality die structure WEB
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STRESS ANALYSIS OF CANNED HOT FORGING SPECIMEN OF TiAl INTERMETALLIC COMPOUND 被引量:1
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作者 Rao, Qiuhua He, Yehui +1 位作者 Huang, Baiyun Liu, Wensheng 《中国有色金属学会会刊:英文版》 EI CSCD 1997年第2期92-95,共4页
STRESSANALYSISOFCANNEDHOTFORGINGSPECIMENOFTiAlINTERMETALLICCOMPOUND①RaoQiuhuaDepartmentofArchitectureEnginer... STRESSANALYSISOFCANNEDHOTFORGINGSPECIMENOFTiAlINTERMETALLICCOMPOUND①RaoQiuhuaDepartmentofArchitectureEnginering,HeYehui,Huang... 展开更多
关键词 stress analysis CANNED hot forging TIAL INTERMETALLIC COMPOUND
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RESEARCH ON THE WARM FORGING OF ALUMINUM ALLOYS: DEVELOPMENT OF A FORMULA TO DESCRIBE THE SOFTENING BEHAVIOR OF A2011 IN FORGING PROCESS 被引量:1
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作者 X.H.Zhang K.Osakada X.Y.Ruan 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2003年第2期110-113,共4页
To understand the forming behaviour of aluminum alloys, the upsetting test of aluminum alloys at evaluated temperature is conducted. Because in warm forging the flow stress decreases with increasing straining, which i... To understand the forming behaviour of aluminum alloys, the upsetting test of aluminum alloys at evaluated temperature is conducted. Because in warm forging the flow stress decreases with increasing straining, which is so-called work softening, no appropriate material formulation is available. For the evaluation of flow stress of aluminum alloys in warm forging processes, in this paper, a formula is derived by analyzing the stress data measured at various temperatures. It is demonstrated that the formula fits the flow stress obtained from experiment. 展开更多
关键词 aluminum alloy flow stress warm forging work softening
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Carbide Coating Preparation of Hot Forging Die by Plasma Processing 被引量:1
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作者 杜文华 DU Cong +2 位作者 WANG Huachang WANG Hongfu WANG Junyuan 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2012年第6期1110-1114,共5页
To meet the performance requirements of hot forging die heat resistant layer, the Ni60-SiC coating, Ni60-Cr3C2 coating, and Ni60-WC coating were prepared using W6Mo5Cr4V2 as substrate material with 30%SiC, 10%Cr3C2, 3... To meet the performance requirements of hot forging die heat resistant layer, the Ni60-SiC coating, Ni60-Cr3C2 coating, and Ni60-WC coating were prepared using W6Mo5Cr4V2 as substrate material with 30%SiC, 10%Cr3C2, 30%WC powder by means of plasma spraying and plasma spray re-melting and plasma spray welding, respectively. Microstructure of each carbide coating was analyzed, micro-hardness was tested, and mainly thermal parameters of coating were detected. The experimental results show that using plasma spray welding, the performance of 70%Ni60/30%SiC powder is the best, and its micro-hardness can achieved 1100HV, showing good thermal-physical property. 展开更多
关键词 hot forging die plasma processing Ni60-SiC Ni60-Cr3C2 Ni60-WC
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Forgeability of AZ31B magnesium alloy in warm forging 被引量:8
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作者 张先宏 阮雪榆 K.Osakada 《中国有色金属学会会刊:英文版》 CSCD 2003年第3期632-635,共4页
To understand the forming behaviour of magnesium alloys, the upsetting test of Mg alloys at evaluated temperature was conducted. It is found that Mg alloys are brittle at temperatures below 200 ℃. When temperature is... To understand the forming behaviour of magnesium alloys, the upsetting test of Mg alloys at evaluated temperature was conducted. It is found that Mg alloys are brittle at temperatures below 200 ℃. When temperature is higher than 400 ℃, Mg alloy is not suitable for forging because of heavy oxidation. Mg alloy shows an excellent workability at temperatures from 250 to 400 ℃. Because in warm forging the flow stress decreases with increasing strain, which is so called work softening, no appropriate material formulation is available for Mg alloys. For the evaluation of flow stress of Mg alloys in warm forging processes, a formula is derived by analyzing the stress data measured at various temperatures in upsetting test. It is demonstrated that the formula fits the flow stress obtained from experiment. 展开更多
关键词 镁合金 可锻性 锻造 温锻 动力学 流动应力 加工软化
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Effect of Alloying Elements on Thermal Wear of Cast Hot-Forging Die Steels 被引量:8
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作者 WANG Shu-qi CHEN Kang-min +2 位作者 CUI Xiang-hong JIANG Qi-chuan HONG Bian 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2006年第5期53-59,共7页
The effect of main alloying elements on thermal wear of cast hot-forging die steels was studied. The wear mechanism was discussed. The results show that alloying elements have significant influences on the thermal wea... The effect of main alloying elements on thermal wear of cast hot-forging die steels was studied. The wear mechanism was discussed. The results show that alloying elements have significant influences on the thermal wear of cast hot-forging die steels. The wear rates decrease with an increase in chromium content from 3% to 4% and molybdenum content from 2% to 3%, respectively. With further increase of chromium and molybdenum contents, chromium slightly reduces the wear resistance and molybdenum severely deteriorates the wear resistance with high wear rate. Lower vanadium/carbon ratio (1.5-2.5) leads to a lower wear resistance with higher wear rate. With an increase in vanadium/carbon ratio, the wear resistance of the cast steel substantially increases. When vanadium/carbon ratio is 3, the wear rate reaches the lowest value. The predominant mechanism of thermal wear of cast hot-forging die steels are oxidation wear and fatigue delamination. The Fe2O3 and Fe3O4 or lumps of brittle wear debris are formed on the wear surface. 展开更多
关键词 hot-forging die cast steel alloying element thermal wear MECHANISM
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Research on Thermal Wear of Cast Hot Forging Die Steel Modified by Rare Earths 被引量:6
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作者 崔向红 王树奇 +1 位作者 姜启川 陈康敏 《Journal of Rare Earths》 SCIE EI CAS CSCD 2007年第1期88-92,共5页
Thermal wear of cast hot-forging die steel modified by rare earths(RE) was studied and compared with commercially used die steels. The function of RE and the mechanism of thermal wear of cast steel modified by RE we... Thermal wear of cast hot-forging die steel modified by rare earths(RE) was studied and compared with commercially used die steels. The function of RE and the mechanism of thermal wear of cast steel modified by RE were discussed. The results showed that with increasing content of RE, the wear rate of cast steel reduced at first and then increased. By adding 0.05% (mass fraction) RE, the cast hot-forging die steel with optimum thermal wear resistance was obtained, which was better than that of H13 and 3Cr2WSV. The large amount of coarse inclusions, (RE)2O2S, resulted from excessive RE, which obviously deteriorated thermal wear resistance. The mechanism of thermal wear of the modified cast die steel is oxidation wear and oxide fatigue delamination. The wear debris are lumps of Fe2O3 and Fe3O4. 展开更多
关键词 cast steel hot-forging die thermal wear rare earths
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Hot Forging and Hot Pressing of AlSi Powder Compared to Conventional Powder Metallurgy Route 被引量:1
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作者 Sayed Moustafa Walid Daoush +1 位作者 Ahmed Ibrahim Erich Neubaur 《Materials Sciences and Applications》 2011年第8期1127-1133,共7页
Aluminum silicon alloy of composition (Al-25%Si-3%Ni-1%Fe-2%Cu) was atomized using water atomization. The powders were cold compacted in a die to produce green cylinder compacts. Four consolidation processes were appl... Aluminum silicon alloy of composition (Al-25%Si-3%Ni-1%Fe-2%Cu) was atomized using water atomization. The powders were cold compacted in a die to produce green cylinder compacts. Four consolidation processes were applied, namely;conventional sintering at 500℃, sintering followed by hot forging to obtain pistons, one step hot forging into pistons, and hot pressing. The microstructure of the sintered specimens showed inter-granular pores and oxide layers on particle interfaces of 84% relative density. When the sintered specimens were hot forged, both the inter-granular pores and oxide layers on particle interfaces almost disappeared and the relative densities increased up to about 95%. The same microstructure is also obtained for the one step forged specimens, but the relative densities increased to about 97%. However, the hot pressing specimens showed the presence of oxide layers on particle surfaces as well as few isolated pores. The relative density of the hot pressed specimens was about 90%. Hardness and ultimate compression strength were measured. It is noted that the strongest bulk materials are those made by hot forging, followed by those made by hot pressing and the weakest bulk materials are those made by conventional sintering. 展开更多
关键词 Aluminum-Silicon Alloy Powder METALLURGY hot forging hot PRESSING Hardness Compression Test
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Hot-forging Die Cavity Surface Layer Temperature Gradient Distribution and Determinant
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作者 王华昌 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2011年第4期801-806,共6页
Based on the car front-wheel-hub forging forming process of numerical simulation, the temperature gradient expression of forging model cavity near the surface layer was got ten, which illustrates that the forging temp... Based on the car front-wheel-hub forging forming process of numerical simulation, the temperature gradient expression of forging model cavity near the surface layer was got ten, which illustrates that the forging temperature gradient is related to forging die materials thermal conductivity, specific heat and impact speed, and the correlation coefficient is 0.97. Under the different thermal conductivity, heat capacity and forging speed, the temperature gradient was compared with each other. The paper obtained the relevant laws, which illustrates the temperature gradient relates to these three parameters in a sequence of thermal conductivity 〉 impact speed〉 specific heat capacity. To reduce thermal stress in the near-surface layer of hot forging cavity, the material with greater thermal conductivity coefficient and specific heat capacity should be used. 展开更多
关键词 hot forging die cavity surface layer temperature gradient distribution numerical simulation
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Hot forging of Mg-4Al-2Ba-2Ca(ABa X422) alloy and validation of processing map
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作者 K.SURESH K.P.RAO +2 位作者 Y.V.R.K.PRASAD N.HORT H.DIERINGA 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2018年第8期1495-1503,共9页
A cup-shaped component of Mg-4 Al-2 Ba-2 Ca(ABa X422) alloy was forged in the temperature range of 300-500 °C and at speeds in the range of 0.01-10 mm/s with a view to validate the processing map and study the ... A cup-shaped component of Mg-4 Al-2 Ba-2 Ca(ABa X422) alloy was forged in the temperature range of 300-500 °C and at speeds in the range of 0.01-10 mm/s with a view to validate the processing map and study the microstructural development. The process was simulated through finite-element method to estimate the local and average strain rate ranges in the forging envelope. The processing map exhibited two domains in the following ranges:(1) 300-390 °C and 0.0003-0.001 s^-1, and(2) 400-500 °C and 0.0003-0.3 s^-1 and both represented dynamic recrystallization(DRX). The map revealed a wide flow instability regime at higher strain rates and temperatures lower than 400 °C, in which flow localization occurred. Forgings produced under conditions of the above two domains were sound and symmetrical, and had finer grain sizes when being forged in the first domain. However, when being forged in the flow instability regimes, the alloy fractured before the final shape was reached. The experimental load-stroke curves for the conditions within the domains correlated well with the simulated ones, whereas the curves obtained in the instability regime were uneven. 展开更多
关键词 magnesium alloy processing map hot forging dynamic recrystallization
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Optimizing Hot Forging Process Parameters of Hollow Parts Using Tubular and Cylindrical Workpiece: Numerical Analysis and Experimental Validation
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作者 Angela Selau Marques Luana DeLuccade Costa +3 位作者 Rafael Luciano Dalcin Alberto Moreira Guerreiro Brito Lirio Schaeffer Alexandre da Silva Rocha 《Journal of Mechanics Engineering and Automation》 2018年第2期60-70,共11页
CAE (computer aided engineering) evaluates the forging process virtually to optimize the industrial production. The numerical and experimental investigations of forging process of a hollow part are important in ind... CAE (computer aided engineering) evaluates the forging process virtually to optimize the industrial production. The numerical and experimental investigations of forging process of a hollow part are important in industrial point of view. This study has been focused on the development of a 3D elastic-plastic FEM (finite element model) of hot forging to evaluate the forming process of hollow parts. The validity of this method was verified through a laboratory experiment using aluminum alloy (AA6351) with medium geometric complexity. The distributions of effective strain, temperature, metal flow and strength were analyzed for two different initial workpieces (tubular and cylindrical). It was observed that both initial workpieces can be used to produce the final hollow part using the numerical simulation model. The results showed that the numerical analyses predict, filling cavity, calculated strength, work temperature and material flow were in agreement with the experimental results. However, some problems such as air trapping in the die causing incomplete filling could not be predicted and this problem was resolved experimentally by drilling small holes for air release in the dies. 展开更多
关键词 hot forging FEM hollow parts AA6351.
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Determination and Analysis of Hardenability for Hot-Forging Die Steels with Deep-Hardening
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作者 ZHAO Gang JIANG Min +3 位作者 QIN Gao-wu HAO Shi-ming GU Rong DAI Jian-ming 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2000年第1期27-30,共4页
ERH end-quenching method was used to determine the hardenability of four kinds hot-forging die steels with deep-hardening and hence the order of their hardenability was given.The tempering hardness of the steels was m... ERH end-quenching method was used to determine the hardenability of four kinds hot-forging die steels with deep-hardening and hence the order of their hardenability was given.The tempering hardness of the steels was measured and the tempering resistance was studied.It was approved that ERH method is effective for the determination of hardenability of deep-hardening steel and the beginning of hardness drop in the ERH specimen is caused by bainite occurring. 展开更多
关键词 HARDENABILITY deep-hardening steel hot-forging die steel tempering resistance
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Numerical Simulation of Coupled Thermo-mechanical Behavior of a Cylinder Billet during Hot-forging Process
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作者 Peiran Ding, Don g-Ying Ju, Shoji Imatani, Tatsuo Inoue 1.Engineering Services Department, MSC Japan Ltd., Osaka, Japan 2.Department of Mechanical Engineering, Saitama Institute of Technology, Saitama, Japan 3.Department of Energy Conversion Science, K 《Journal of Shanghai Jiaotong university(Science)》 EI 2000年第1期263-269,共7页
A finite volume method is applied to simulate a closed die hot forging process of a cylinder billet. Since variation and distribution of temperature play very important role in hot forging, the code involves a methodo... A finite volume method is applied to simulate a closed die hot forging process of a cylinder billet. Since variation and distribution of temperature play very important role in hot forging, the code involves a methodology of a coupled system of mechanical and thermal equations. The simulated results are compared with the experimental ones. The distribution of temperature in the billet obtained from the simulation is also discussed. 展开更多
关键词 hot-forging numerical simulation FINITE volume method EULERIAN FORMULATION THERMO-MECHANICAL coupling
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