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A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning Scopus
期刊论文 | 2024 , 14 (1) | Scientific Reports
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Abstract :

Insole blanking production technology plays a vital role in contemporary machining and manufacturing industries. Existing insole blanking production models have limitations because most robots are required to accurately position the workpiece to a predetermined location, and special auxiliary equipment is usually required to ensure the precise positioning of the robot. In this paper, we present an adaptive blanking robotic system for different lighting environments, which consists of an industrial robot arm, an RGB-D camera configuration, and a customized insole blanking table and mold. We introduce an innovative edge detection framework that utilizes color features and morphological parameters optimized through particle swarm optimization (PSO) techniques to Adaptive recognition of insole edge contours. A path planning framework based on FSPS-BIT* is also introduced, which integrates the BIT* algorithm with the FSPS algorithm for efficient path planning of the robotic arm. © The Author(s) 2024.

Keyword :

Adaptive edge detection Adaptive edge detection BIT* BIT* Insole blanking Insole blanking Path planning Path planning Robotic system Robotic system

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GB/T 7714 Tang, R. , Guo, S. , Wang, K. et al. A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning [J]. | Scientific Reports , 2024 , 14 (1) .
MLA Tang, R. et al. "A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning" . | Scientific Reports 14 . 1 (2024) .
APA Tang, R. , Guo, S. , Wang, K. , Lin, H. , Huang, L. , Mou, G. . A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning . | Scientific Reports , 2024 , 14 (1) .
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A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning SCIE
期刊论文 | 2024 , 14 (1) | SCIENTIFIC REPORTS
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Abstract :

Insole blanking production technology plays a vital role in contemporary machining and manufacturing industries. Existing insole blanking production models have limitations because most robots are required to accurately position the workpiece to a predetermined location, and special auxiliary equipment is usually required to ensure the precise positioning of the robot. In this paper, we present an adaptive blanking robotic system for different lighting environments, which consists of an industrial robot arm, an RGB-D camera configuration, and a customized insole blanking table and mold. We introduce an innovative edge detection framework that utilizes color features and morphological parameters optimized through particle swarm optimization (PSO) techniques to Adaptive recognition of insole edge contours. A path planning framework based on FSPS-BIT* is also introduced, which integrates the BIT* algorithm with the FSPS algorithm for efficient path planning of the robotic arm.

Keyword :

Adaptive edge detection Adaptive edge detection BIT* BIT* Insole blanking Insole blanking Path planning Path planning Robotic system Robotic system

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GB/T 7714 Tang, Rui , Guo, Shirong , Wang, Kunfu et al. A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning [J]. | SCIENTIFIC REPORTS , 2024 , 14 (1) .
MLA Tang, Rui et al. "A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning" . | SCIENTIFIC REPORTS 14 . 1 (2024) .
APA Tang, Rui , Guo, Shirong , Wang, Kunfu , Lin, Hongdi , Huang, Lujin , Mou, Gang . A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning . | SCIENTIFIC REPORTS , 2024 , 14 (1) .
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A framework of insole blanking robot based on adaptive edge detection and FSPS-BIT* path planning Scopus
期刊论文 | 2024 , 14 (1) | Scientific Reports
Supportfree printing in laser powder bed fusion: Formation mechanisms of discontinuity, dross and surface roughness SCIE
期刊论文 | 2024 , 177 | OPTICS AND LASER TECHNOLOGY
WoS CC Cited Count: 2
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Abstract :

The supportfree printing of overhanging structure arouses enormous interest for its advantages to eliminate the need for support removal and to improve the efficiency in laser powder bed fusion (L-PBF) additive manufacturing. However, the improvement of down -facing surface quality remains a significant challenge, where an in-depth understanding of the formation of overhanging tracks is essential. This paper developed a multiphysics model of overhanging tracks in L-PBF to systematically investigate the formation mechanisms of key features such as discontinuity and dross, as well as their correlation with surface roughness. It reveals that there are two main causes of discontinuity of overhanging tracks: the coalescence and balling of the melt under low energy density, and the irregular sinking of melt pool at the overhanging edge. The high energy density could mitigate the occurrence of discontinuous tracks, but it might also lead to undesirable dross upon the complete penetration of the overhanging structure. The relationship between processing parameters, morphological defects and surface roughness were systematically discussed, which revealed the necessity to tailor processing parameters for different overhang angles to improve the down -facing surface quality. Furthermore, the significant correlation between the single-track morphology and the down -facing surface roughness has been demonstrated quantitatively, which proposed a practical way to predict the trend of the down -facing surface quality by single-track simulation. This could help improve the supportfree printing process in metal additive manufacturing.

Keyword :

Laser powder bed fusion Laser powder bed fusion Multi-physics modeling Multi-physics modeling Overhanging structure Overhanging structure Supportfree printing Supportfree printing Surface roughness Surface roughness

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GB/T 7714 Xiang, Hongliang , Zhou, Yulong , Zhang, Xiangkai et al. Supportfree printing in laser powder bed fusion: Formation mechanisms of discontinuity, dross and surface roughness [J]. | OPTICS AND LASER TECHNOLOGY , 2024 , 177 .
MLA Xiang, Hongliang et al. "Supportfree printing in laser powder bed fusion: Formation mechanisms of discontinuity, dross and surface roughness" . | OPTICS AND LASER TECHNOLOGY 177 (2024) .
APA Xiang, Hongliang , Zhou, Yulong , Zhang, Xiangkai , Li, Jie , Huang, Ye , Mou, Gang et al. Supportfree printing in laser powder bed fusion: Formation mechanisms of discontinuity, dross and surface roughness . | OPTICS AND LASER TECHNOLOGY , 2024 , 177 .
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Supportfree printing in laser powder bed fusion: Formation mechanisms of discontinuity, dross and surface roughness EI
期刊论文 | 2024 , 177 | Optics and Laser Technology
Supportfree printing in laser powder bed fusion: Formation mechanisms of discontinuity, dross and surface roughness Scopus
期刊论文 | 2024 , 177 | Optics and Laser Technology
超声波滚压强化TC11钛合金的表面质量与摩擦磨损性能 CSCD PKU
期刊论文 | 2024 , 60 (09) , 137-151 | 机械工程学报
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Abstract :

采用超声波滚压工艺对TC11钛合金表面进行光整强化加工,利用OM、白光干涉仪、SEM、EDS和XRD研究了超声波滚压工艺参数对钛合金表层的微观结构和表面粗糙度的影响规律;采用显微硬度计、多功能摩擦磨损试验机研究了滚压表面的硬度和摩擦磨损性能。研究结果表明,钛合金表面粗糙度随着滚压功率、滚压次数、静压力、压下量、主轴转速和进给量的增加呈先降后增的趋势,分别在滚压功率660 W、滚压次数5次、静压力0.20 MPa、压下量0.15 mm、主轴转速200 r·min~(-1)、进给量0.10 mm·r~(-1)时达到最低值。随着功率的提高,钛合金表面硬度增大,摩擦因数和磨损量降低;随滚压次数、静压力、压下量、主轴转速和进给量的增加,表面硬度呈先升后降的趋势,摩擦因数和磨损量呈先降后升的趋势,在滚压功率990 W、滚压次数5次、静压力0.20 MPa、压下量0.15 mm、主轴转速200 r·min~(-1)、进给量0.10 mm·r~(-1)时,硬度达到最高值,摩擦因数和磨损量达到最低值。对工艺参数进行响应曲面优化,获得优化工艺参数为滚压功率990 W、滚压次数5次、静压力0.20 MPa、压下量0.15 mm、主轴转速198 r·min~(-1)、进给量0.10 mm·r~(-1)。与滚压前的钛合金表面相比,表面硬度从338 HV增至461 HV,提高了36.4%;表面粗糙度从1.88μm降至0.19μm,下降了89.9%;磨损量从0.60 mg降为0.10 mg,降低了83.3%。

Keyword :

摩擦因数 摩擦因数 磨损量 磨损量 表面质量 表面质量 超声波滚压 超声波滚压 钛合金 钛合金

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GB/T 7714 郑开魁 , 赵信哲 , 牟刚 et al. 超声波滚压强化TC11钛合金的表面质量与摩擦磨损性能 [J]. | 机械工程学报 , 2024 , 60 (09) : 137-151 .
MLA 郑开魁 et al. "超声波滚压强化TC11钛合金的表面质量与摩擦磨损性能" . | 机械工程学报 60 . 09 (2024) : 137-151 .
APA 郑开魁 , 赵信哲 , 牟刚 , 任志英 . 超声波滚压强化TC11钛合金的表面质量与摩擦磨损性能 . | 机械工程学报 , 2024 , 60 (09) , 137-151 .
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超声波滚压强化TC11钛合金的表面质量与摩擦磨损性能
期刊论文 | 2024 , 60 (9) , 137-151 | 机械工程学报
Surface Quality, Friction and Wear Properties of TC11 Titanium Alloy Strengthened Using Ultrasonic Rolling EI CSCD PKU
期刊论文 | 2024 , 60 (9) , 137-151 | Journal of Mechanical Engineering
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Abstract :

The surface of the TC11 titanium alloy is significantly strengthened through the ultrasonic tumbling process. The effect of ultrasonic tumbling process parameters on the microstructure and surface roughness of a titanium alloy using multiple techniques are investigated, including OM, white light interferometry, SEM, EDS, and XRD. The hardness, friction, and wear properties of the rolling surface are analyzed using a microhardness tester and a multifunctional friction-wear tester. The results indicate that the surface roughness of the titanium alloy decreases initially and then increases with an increase in rolling power, rolling times, static pressure, reduction, spindle speed, and feed rate. The lowest value is achieved with the following parameters: 660 W rolling power, 5 rolling times, static pressure of 0.20 MPa, reduction of 0.15 mm, spindle speed of 200 r·min−1, and feed rate of 0.10 mm·r−1. With an increase in power, the surface hardness of titanium alloy increases, which leads to a reduction in friction coefficient and wear loss. As the rolling times, static pressure, reduction, spindle speed, and feed rate increase, the surface hardness initially increases and then decreases. Meanwhile, the friction coefficient and wear loss tend to decrease initially and then increase. When the rolling power is set to 990 W, the rolling frequency is 5 times, the static pressure is 0.20 MPa, the reduction is 0.15 mm, the spindle speed is 200 r·min−1, and the feed rate is 0.10 mm·r−1, the hardness reaches its maximum value, while the friction coefficient and wear loss reach their minimum values. Response surface optimization was conducted to obtain the optimal process parameters, including a rolling power of 990 W, rolling frequency of 5 times, static pressure strength of 0.20 MPa, reduction of 0.15 mm, spindle speed of 198 r·min−1, and feed rate of 0.10 mm·r−1. Compared to the surface of the titanium alloy before rolling, the hardness increased by 36.4% from 337 HV to 461 HV, the surface roughness decreased by 89.9% from 1.88 μm to 0.19 μm, and the wear loss decreased by 83.3% from 0.60 mg to 0.10 mg. © 2024 Chinese Mechanical Engineering Society. All rights reserved.

Keyword :

Friction Friction Hardness Hardness Rolling Rolling Surface properties Surface properties Surface roughness Surface roughness Titanium alloys Titanium alloys Wear of materials Wear of materials

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GB/T 7714 Zheng, Kaikui , Zhao, Xinzhe , Mou, Gang et al. Surface Quality, Friction and Wear Properties of TC11 Titanium Alloy Strengthened Using Ultrasonic Rolling [J]. | Journal of Mechanical Engineering , 2024 , 60 (9) : 137-151 .
MLA Zheng, Kaikui et al. "Surface Quality, Friction and Wear Properties of TC11 Titanium Alloy Strengthened Using Ultrasonic Rolling" . | Journal of Mechanical Engineering 60 . 9 (2024) : 137-151 .
APA Zheng, Kaikui , Zhao, Xinzhe , Mou, Gang , Ren, Zhiying . Surface Quality, Friction and Wear Properties of TC11 Titanium Alloy Strengthened Using Ultrasonic Rolling . | Journal of Mechanical Engineering , 2024 , 60 (9) , 137-151 .
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Surface Quality, Friction and Wear Properties of TC11 Titanium Alloy Strengthened Using Ultrasonic Rolling; [超声波滚压强化 TC11 钛合金的表面质量与摩擦磨损性能] Scopus CSCD PKU
期刊论文 | 2024 , 60 (9) , 137-151 | Journal of Mechanical Engineering
Dual-interfacial alloying mechanism in Ti-steel laminated metal composite fabricated by wire-arc directed energy deposition using a Cu-Ni interlayer SCIE
期刊论文 | 2024 , 1010 | JOURNAL OF ALLOYS AND COMPOUNDS
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Abstract :

Ti-steel laminated metal composites have been widely used in shipbuilding and the chemical industry due to the superior corrosion resistance of Ti and the favorable mechanical properties of stainless steel. In this paper, Tisteel laminated metal composites without Ti-Fe IMCs have been fabricated by directed energy deposition-arc method using a Cu-Ni transition interlayer. Based on the analysis of microstructure analysis, the crosssectional microstructure can be divided into 304SS / Cu-Ni interface containing (Fe, Cr) and (Cu) solid solution, Cu-Ni deposition layer containing (Fe, Cr) and (Cu) solid solution, and TA2/Cu-Ni interface containing Ti2FeCu and Ti-Cu IMCs. Besides, the Cu-Ni deposition layer contains a small content of recrystallized grains with {100}<100> texture and a large content of deformed grains with{100}<110> texture due to the impact of arc and droplets during continuous depositions. Furthermore, the peak hardness is decreased to 518 Hv and the mean value of compressive shear strength is enhanced to 195.27 MPa, which can be attributed to the elimination of interfacial Ti-Fe IMCs, defect-free microstructure, and residual stress relief. Based on polarization curves and electrochemical impedance spectroscopy, the corrosion resistance reduction of the cross-section is due to the formation of a mass of primary battery systems. Furthermore, based on the thermodynamics calculation of Fe-CuNi, Ti-Fe-Cu, and Ti-Ni-Cu ternary systems, the alloying mechanism is that Ti-based IMCs with lower Gibbs free energy will be formed instead of brittle Ti-Fe IMCs, resulting in the elimination of Ti-Fe IMCs and the formation of less brittle phases at both 304SS / Cu-Ni interface and TA2 / Cu-Ni interface.

Keyword :

Additive manufacturing Additive manufacturing Interfacial alloying Interfacial alloying Laminated metal composite Laminated metal composite Mechanical property Mechanical property Microstructure Microstructure

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GB/T 7714 Mou, Gang , Sheng, Haiyang , Zheng, Kaikui et al. Dual-interfacial alloying mechanism in Ti-steel laminated metal composite fabricated by wire-arc directed energy deposition using a Cu-Ni interlayer [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 1010 .
MLA Mou, Gang et al. "Dual-interfacial alloying mechanism in Ti-steel laminated metal composite fabricated by wire-arc directed energy deposition using a Cu-Ni interlayer" . | JOURNAL OF ALLOYS AND COMPOUNDS 1010 (2024) .
APA Mou, Gang , Sheng, Haiyang , Zheng, Kaikui , Xiang, Hongliang , Ren, Wenjie , Ding, Yuhan . Dual-interfacial alloying mechanism in Ti-steel laminated metal composite fabricated by wire-arc directed energy deposition using a Cu-Ni interlayer . | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 1010 .
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Dual-interfacial alloying mechanism in Ti-steel laminated metal composite fabricated by wire-arc directed energy deposition using a Cu-Ni interlayer EI
期刊论文 | 2025 , 1010 | Journal of Alloys and Compounds
Dual-interfacial alloying mechanism in Ti-steel laminated metal composite fabricated by wire-arc directed energy deposition using a Cu-Ni interlayer Scopus
期刊论文 | 2025 , 1010 | Journal of Alloys and Compounds
重卡结构件激光-GMAW复合焊接变形数值模拟研究
期刊论文 | 2023 , 53 (7) , 16-23 | 电焊机
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利用热弹塑性有限元分析,对材料为Q235钢的重卡结构件激光-GMAW复合焊接的温度场及焊接变形进行数值模拟计算.将平面高斯热源与高斯倒锥体热源结合,建立了适用于激光-GMAW复合焊接的组合热源模型,计算所得的焊缝横截面形状和尺寸与试验吻合较好.对于整个焊接结构的焊接顺序分成多个部分进行规划,包括了两个待焊面的整体先后顺序、局部的焊接起始位置以及焊接路径选择,焊接路径包括顺序焊、分步退焊、跳焊.在结构上选取4条关键路径,并将路径上各点的z方向位移量进行标准差计算,并取平均值,作为整个结构z方向变形程度系数,建立了针对具有复杂变形趋势和变形分布的焊接结构的变形严重程度定量评估方法.将各步骤内的最优方案进行结合,最终得到的最优焊接顺序方案为先焊A面后焊B面,且B面采用跳焊路径,3号位置作为焊接起始位置.最优方案焊接变形程度系数为0.2 mm,与最差焊接方案相比,焊接变形程度系数降低了28.6%.

Keyword :

激光-GMAW复合焊接 激光-GMAW复合焊接 热弹塑性分析 热弹塑性分析 焊接顺序 焊接顺序 组合式体积热源 组合式体积热源

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GB/T 7714 殷琪安 , 陶武 , 牟刚 et al. 重卡结构件激光-GMAW复合焊接变形数值模拟研究 [J]. | 电焊机 , 2023 , 53 (7) : 16-23 .
MLA 殷琪安 et al. "重卡结构件激光-GMAW复合焊接变形数值模拟研究" . | 电焊机 53 . 7 (2023) : 16-23 .
APA 殷琪安 , 陶武 , 牟刚 , 樊雪 , 任闻杰 , 杨上陆 . 重卡结构件激光-GMAW复合焊接变形数值模拟研究 . | 电焊机 , 2023 , 53 (7) , 16-23 .
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重卡结构件激光-GMAW复合焊接变形数值模拟研究
期刊论文 | 2023 , 53 (07) , 16-23 | 电焊机
重卡结构件激光-GMAW复合焊接变形数值模拟研究
期刊论文 | 2023 , 53 (07) , 16-23 | 电焊机
Effects of laser scanning speed on the microstructure and mechanical properties of 2205 duplex stainless steel fabricated by selective laser melting SCIE
期刊论文 | 2023 , 94 , 1-9 | JOURNAL OF MANUFACTURING PROCESSES
WoS CC Cited Count: 28
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Abstract :

Specimens of duplex stainless steel (DSS) fabricated by selective laser melting (SLM) exhibit excellent strength but poor plasticity, which has limited their applications. To improve the plasticity and to achieve a strengthplasticity matching, the effect of the laser scanning speed on the density, phase, microstructure, and mechanical properties of 2205 DSS specimens fabricated via SLM is investigated. The results reveal that the molten metal is solidified according to the kinetic sequence L -> delta + L -> delta -> delta + gamma for the SLM forming process, and the sample is completely composed of the ferrite phase. The content of austenite cannot be effectively enhanced by a change in the laser scanning speed. The mechanical properties of the samples are primarily affected by the presence of pores. A scanning speed of S700 (700 mm/s) results in the formation of fewer pores, which gives rise to a high yield strength of 896.80 MPa but a poor plasticity of 15.34 %. Decreasing the scanning speed to below 700 mm/s reduces the yield strength, but it also significantly increases the elongation. The elongation of the specimens fabricated using a laser scanning speed of 500 mm/s increases to 23.09 %, and they exhibit excellent strengthplasticity matching. This increased elongation at lower scanning speeds is attributed to higher density, lower dislocation density, decreased number of grain boundaries and the higher proportion of high-angle grain boundaries (HAGBs) of the specimens. Therefore, a significant decrease in the scanning speed can improve the plasticity of the specimens fabricated by the SLM method. By changing the laser scanning speed, the density, microstructure and mechanical properties can be optimized to further improve the plasticity of the specimens.

Keyword :

Densification Densification Duplex stainless steel Duplex stainless steel Laser scanning speed Laser scanning speed Mechanical properties Mechanical properties Microstructure Microstructure Selective laser melting Selective laser melting

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GB/T 7714 Zhao, Wei , Xiang, Hongliang , Yu, Rongxin et al. Effects of laser scanning speed on the microstructure and mechanical properties of 2205 duplex stainless steel fabricated by selective laser melting [J]. | JOURNAL OF MANUFACTURING PROCESSES , 2023 , 94 : 1-9 .
MLA Zhao, Wei et al. "Effects of laser scanning speed on the microstructure and mechanical properties of 2205 duplex stainless steel fabricated by selective laser melting" . | JOURNAL OF MANUFACTURING PROCESSES 94 (2023) : 1-9 .
APA Zhao, Wei , Xiang, Hongliang , Yu, Rongxin , Mou, Gang . Effects of laser scanning speed on the microstructure and mechanical properties of 2205 duplex stainless steel fabricated by selective laser melting . | JOURNAL OF MANUFACTURING PROCESSES , 2023 , 94 , 1-9 .
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Effects of laser scanning speed on the microstructure and mechanical properties of 2205 duplex stainless steel fabricated by selective laser melting Scopus
期刊论文 | 2023 , 94 , 1-9 | Journal of Manufacturing Processes
Effects of laser scanning speed on the microstructure and mechanical properties of 2205 duplex stainless steel fabricated by selective laser melting EI
期刊论文 | 2023 , 94 , 1-9 | Journal of Manufacturing Processes
Prediction of Weld Bead Formation of Duplex Stainless Steel Fabricated by Wire Arc Additive Manufacturing Based on the PSO-BP Neural Network ESCI CSCD
期刊论文 | 2023 , 22 (2) , 311-323 | JOURNAL OF MARINE SCIENCE AND APPLICATION
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Abstract :

Duplex stainless steel was formed through welding wire and arc additive manufacturing (WAAM) using tungsten inert gas. The effects of wire feeding speed (WFS), welding speed (WS), welding current, and their interaction on the weld bead width and height were discussed. Back-propagation (BP) neural network algorithm prediction model was established by taking the bead width and height as the output layer, and the network weight and threshold values were optimized using the particle swarm optimization (PSO) algorithm to obtain the prediction model of bead width and height. The predicted results were verified by experiments. Results show that the weld bead width increases with the increase in WFS and the welding current and decreases with WS. The smaller the WFS, the faster the WS, which is beneficial for the generation of equiaxed crystals. The smaller the welding current, the faster the cooling speed of the metal melt, which is conducive to the formation of dendrites. The interaction among WS, wire feed speed, and welding current has a significant effect on the bead width. The weld bead height is positively correlated with the wire feed speed and negatively correlated with the WS and current. The interaction between the wire feed speed and WS is significant. The optimized WAAM process parameters for duplex stainless steel are a wire feed speed of 200 cm/min, WS of 24 cm/min, and welding current of 160 A. The maximum error of the BP neural network in predicting the weld bead width and height is 7.74%, and the maximum error between the predicted and experimental values of the BP-PSO neural network is 4.27%. This finding indicates that the convergence speed is fast, improving the prediction accuracy.

Keyword :

bead forming bead forming duplex stainless steel duplex stainless steel neural network neural network prediction model prediction model wire arc additive manufacturing wire arc additive manufacturing

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GB/T 7714 Zheng, Kaikui , Yao, Chuanxu , Mou, Gang et al. Prediction of Weld Bead Formation of Duplex Stainless Steel Fabricated by Wire Arc Additive Manufacturing Based on the PSO-BP Neural Network [J]. | JOURNAL OF MARINE SCIENCE AND APPLICATION , 2023 , 22 (2) : 311-323 .
MLA Zheng, Kaikui et al. "Prediction of Weld Bead Formation of Duplex Stainless Steel Fabricated by Wire Arc Additive Manufacturing Based on the PSO-BP Neural Network" . | JOURNAL OF MARINE SCIENCE AND APPLICATION 22 . 2 (2023) : 311-323 .
APA Zheng, Kaikui , Yao, Chuanxu , Mou, Gang , Xiang, Hongliang . Prediction of Weld Bead Formation of Duplex Stainless Steel Fabricated by Wire Arc Additive Manufacturing Based on the PSO-BP Neural Network . | JOURNAL OF MARINE SCIENCE AND APPLICATION , 2023 , 22 (2) , 311-323 .
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Prediction of Weld Bead Formation of Duplex Stainless Steel Fabricated by Wire Arc Additive Manufacturing Based on the PSO-BP Neural Network CSCD
期刊论文 | 2023 , 22 (2) , 311-323 | Journal of Marine Science and Application
Prediction of Weld Bead Formation of Duplex Stainless Steel Fabricated by Wire Arc Additive Manufacturing Based on the PSO-BP Neural Network; [基于PSO-BP 神经网络的双相不锈钢电弧增材制造焊道成形预测] Scopus CSCD
期刊论文 | 2023 , 22 (2) , 311-323 | Journal of Marine Science and Application
Interface formation and defect elimination mechanism of T2/304L interface during electromagnetic pulse welding process SCIE
期刊论文 | 2023 , 349 | MATERIALS LETTERS
WoS CC Cited Count: 2
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Abstract :

Experimental and numerical methods are carried out to analyze the interface formation and defect elimination mechanism during electromagnetic pulse welding T2 to 304L tube by changing the inner tube morphology from original scheme to stage scheme, ramp stage, and location stage. When the original scheme is operated with 13mm lap length, the morphology of interface is divided into four zones containing end unwelded zone, first welded zone, central unwelded zone, and second welded zone due to the different impact velocity and angle during the initial impact process, parallel impact process, and final impact process. The parallel impact leads to the formation of the central unwelded zone, containing (Cu, Fe) solid solution, oxides, nano grains, and amor-phous phase. By providing a suitable impact angle, the ramp scheme (& alpha; = 7 degrees) and location scheme (L = 6.5 mm) can eliminate the defect in the central unwelded zone.

Keyword :

Defects Defects Deformation and fracture Deformation and fracture Metallic composites Metallic composites Metals and alloys Metals and alloys Welding Welding

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GB/T 7714 Mou, Gang , He, Lun , Xiang, Hongliang et al. Interface formation and defect elimination mechanism of T2/304L interface during electromagnetic pulse welding process [J]. | MATERIALS LETTERS , 2023 , 349 .
MLA Mou, Gang et al. "Interface formation and defect elimination mechanism of T2/304L interface during electromagnetic pulse welding process" . | MATERIALS LETTERS 349 (2023) .
APA Mou, Gang , He, Lun , Xiang, Hongliang , Lin, Wanfu . Interface formation and defect elimination mechanism of T2/304L interface during electromagnetic pulse welding process . | MATERIALS LETTERS , 2023 , 349 .
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Interface formation and defect elimination mechanism of T2/304L interface during electromagnetic pulse welding process EI
期刊论文 | 2023 , 349 | Materials Letters
Interface formation and defect elimination mechanism of T2/304L interface during electromagnetic pulse welding process Scopus
期刊论文 | 2023 , 349 | Materials Letters
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