Numerical simulation study of influence of friction coefficient of die based on Abaqus on V-shaped clamp stamping parameters

Wu, Shuqian; Fu, Yonghong; Wu, Guoqing; Xia, Mengmeng

doi:10.1177/1687814020988429

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…The steel develops plastic deformations from the moment the proportionality tension is reached. In this curve, Young's modulus is present at the initial behavior of the material and followed by strain hardening, then a plateau of plastic yield [37]. This constitutive relationship makes it possible to simulate the steel plasticization stages, which include: the linear regime, the proportionality tension, and the yield level.…”

Section: Numerical Simulationmentioning

confidence: 99%

“…The numerical model considers a screw load generated by the tightening torque of 50 N.m applied to each screw carried out in the experimental tests. The "BOLT LOAD" option available in the ABAQUS load module was used to model this effect [37,40,41]. To reduce the complexity of the numerical model in relation to numerical convergence, the interaction between the truss members, such as the screw, spacer, and overlapping plate, were alternatively defined as rigid contacts using the TIE CONSTRAINT option available in ABAQUS.…”

Section: Numerical Simulationmentioning

confidence: 99%

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Experimental and Numerical Analysis for Eccentricity Solution in Double-Layer Space Truss

Vital,

Silva,

Bezerra

et al. 2024

Buildings

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This paper shows an extensive study on the Typical Connections used in Double-Layer Space Truss. For this structural system, the ends of the bars are flattened to connect the bars. However, the flattening process results in a highly plastic stamping zone susceptible to warping with the appearance of two eccentricities, one of which causes rotation of the connection, with the presence of a bending moment with local rupture resulting in progressive collapse of the entire coverage system, as already evidenced in several countries. Therefore, eccentricity in this paper is studied and an analytical solution to the problem is presented through the use of a new device called a spacer. Furthermore, a preliminary study with complex numerical simulation was carried out with nonlinear analysis in ABAQUS were evaluated. For this study, nine space trusses were experimentally tested with reinforcement spacer in reduced trusses. After confirming the efficiency of the spacer proposal, another six space trusses were tested in the laboratory, this time, on a full-scale. In this study, two types of spacers were evaluated, one made of USI SAC 350 steel and another cheaper one made from recycled tires from heavy vehicles with multiple filaments of steel and nylon wires in the rubber layers. The two devices presented very close resistance capacity values, with a resistance gain of approximately 30% in relation to connections without reinforcement, with structural failure characterized by buckling of the bars. Finally, a numerical study of space trusses with spacers was developed. In practical design terms, from these FE simulations it was possible to determine the normal stresses for different spacers applied in the different modeled spans.

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Section: Numerical Simulationmentioning

confidence: 99%

Section: Numerical Simulationmentioning

confidence: 99%

Experimental and Numerical Analysis for Eccentricity Solution in Double-Layer Space Truss

Vital,

Silva,

Bezerra

et al. 2024

Buildings

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“…V-shaped clamps were used as the research object in Wu et al's study of the impact of regional friction coefficient on forming parameters. 15 However, in actual production, the friction coefficient is affected by factors such as the material of the contact surface, surface lubrication state, positive pressure, and relative motion speed, which can lead to instability. The actual forming impact under working conditions differs significantly from the modeling results.…”

Section: Introductionmentioning

confidence: 99%

Influence and improvement of stamping process parameters on V-shaped clamp forming quality

Hu,

Qiu,

Mei

et al. 2024

Advances in Mechanical Engineering

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Aiming at the problems that a V-shaped clamp is easy to crack, wrinkle, and springback in the stamping process, a method to improve forming quality by setting the best stamping process parameters is put forward in this paper. The stamping process of the V-shaped clamp was simulated by using the software of ABAQUS, which showed that the stamping process parameters, such as friction coefficient, stamping speed, and mold gap, can affect the forming quality. The optimal combination of stamping process parameters was obtained through an orthogonal experiment. Simulation, profile dimensional measurement, and Fuji paper test were conducted to evaluate and examine the quality of V-shaped clamps before and after optimization. According to the findings of the study, the stamping speed is the main factor affecting the simulation results. The comprehensive effect of the maximum thinning rate, maximum thickening rate, and maximum springback is the best with the stamping speed of 10.00 mm·s−1. The ideal specifications for the stamping process are a 0.16 friction coefficient, a 10.00mm·s−1 stamping speed, and a 2.20 mm mold gap. Process parameter modification can greatly increase the dimensional accuracy and mechanical properties of molded parts.

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“…This negative factor leads to a constant search for knowledge, in order to improve the process and increase the quality of the obtained parts. 13 Katayama et al 14 directed their focus to solve the problem of cracks and wrinkles in the component stamping process of a transfer tool. For this purpose, a multi-objective optimization technique for the intermediate stamping stage of the part was developed.…”

Section: Introductionmentioning

confidence: 99%

Design of a transfer system for the automotive industry

Nunes

Campilho

Silva

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Continuous optimization of processes and products in automotive companies is necessary. The costumers’ demand is growing, making it necessary to increase the number of orders and reduce deadlines. All these changes showed that the processes used in the past are outdated and innovation is needed. Nonetheless, it is not viable to increase manpower or number of production lines without improving and optimizing the existing processes. This work aims to analyse and improve the efficiency of a stamping process of an automotive components’ manufacturer, arising due to the low overall equipment effectiveness (OEE) of transfer dies. Under this scenario, the transfer system should be modified to decrease the setup time and production stoppage, by producing a design that reduces the setup time at the time of changing components/specifications of the fabricated parts or changing the stamping tool. Several management tools were applied, such as failure mode and effects analysis (FMEA analysis) in the pre-design phase. A new concept was devised for the transfer system to increase its stability. The new design accomplished a significant reduction of setup times and production stops, and also a major weight reduction, leading to higher reliability.

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Numerical simulation study of influence of friction coefficient of die based on Abaqus on V-shaped clamp stamping parameters

Cited by 6 publications

References 11 publications

Experimental and Numerical Analysis for Eccentricity Solution in Double-Layer Space Truss

Experimental and Numerical Analysis for Eccentricity Solution in Double-Layer Space Truss

Influence and improvement of stamping process parameters on V-shaped clamp forming quality

Design of a transfer system for the automotive industry

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