Influence of design and process parameters on service life of nut hot forging die

Garat, V

doi:10.1016/j.matprotec.2003.01.002

Cited by 4 publications

(4 citation statements)

References 4 publications

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“…Concentration of stress in the blades and corners is the reason of this phenomenon. (Garat et al, 2004) obtains identical results as this study showed the concentration of stress in the corners. (Feng and Luo, 2000) showed that stress increased during the forging process and also showed this by the moving forward of the die.…”

Section: Resultssupporting

confidence: 83%

Analysis of Hip Prosthesis Production With Forging Using the Finite Element Method

2015

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Hip prostheses used to fulfill injured or fractured limbs are made by machining, casting and plastic forming. Machining is the most commonly used one. However, there are many disadvantages such as high product cost in machining. Plastic forming methods provide more effective and durable implant production than machining. In this study, hip prosthesis with a complex geometry produced by forging were analyzed using the Finite Element Method (FEM). For this purpose, three-dimensional complex geometry was designed and then, FEM analyses were performed using MSC SIMUFACT 10 software. Factors affecting the production were defined as: temperature, friction coefficient and the pressing velocity. Stress distributions, temperature changes, die wears and punch forces applied to the die were examined. As a result of the study, the most suitable parameters were obtained as 500°C, 0.05 coefficient of friction and 2mm/s die velocity. Also, the obtained FEM results were examined by regression analyses.

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Section: Resultssupporting

confidence: 83%

Analysis of Hip Prosthesis Production With Forging Using the Finite Element Method

2015

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“…Optimised numerical tool design can take into account the process variables that occur in the manufacturing process [9] and enable a more efficient design of the tools and step sequences. As a result, an optimisation of the tool configuration is already possible in the construction phase of the forging process through stress-adapted dimensioning with little experimental effort for process design [10].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigations on Stresses and Temperature Development of Tool Dies during Hot Forging

Behrens

Rosenbusch

Wester

et al. 2022

KEM

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Hot-forming tools are subjected to high thermal and mechanical stresses during their application. Therefore, a suitable design of the tool die is important to ensure a long tool life. For this purpose, numerical simulations can be used to calculate the occurring stresses and the temperature development in the tools during the course of a stroke or over several forging cycles. The aim of this research is to investigate the effect of different radii on the resulting stresses in the lower die of the forming tools. Furthermore, the temperature evolution over several cycles is analysed to determine their effect on the temperature. When investigating the stress, it was found that a larger radius leads to a reduction in stresses. In addition, it could be numerically proven that the base temperature of the die levels off after a certain number of cycles. These findings will be used in further research dealing with the service life calculation of dies subjected to thermo-mechanical alternating stresses.

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“…Finite element method was also used to ponder nut forging die in order to increase die fatigue life. The research results compared the effect of initial billet length and temperature decrease on the forging force to conclude that the former factor is more important (Garat et al, 2004). Tomov et al (2004) studied closed forging die using numerical analysis and used finite element method for suggesting a proper design for flash dimension with consideration of flash geometry effects on the parameter process.…”

Section: Introductionmentioning

confidence: 99%

Prediction of damage zone in hot forging die and suggesting proper heat treatment for improving die service life

Tahmasebi

Emadoddin

2012

International Journal of Damage Mechanics

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In the present research, using MSC Super Forge simulation software and analysis of stress, strain, contact pressure, and temperature distribution in different points of hot forging operation of a work piece and also by considering the interaction between the work piece and die, the zones of die which are prone to early failure and damage have been predicted. The results of simulation have been compared with experimental results of die service. Simulation outputs show a good agreement with practical conditions. In the next step, after studying the effect of heat treatment on the die performance, a proper heat treatment procedure is introduced to improve die service life. Finally, capability of this solution to overcome die damages would be verified with practical behavior of dies.

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Influence of design and process parameters on service life of nut hot forging die

Cited by 4 publications

References 4 publications

Analysis of Hip Prosthesis Production With Forging Using the Finite Element Method

Analysis of Hip Prosthesis Production With Forging Using the Finite Element Method

Numerical Investigations on Stresses and Temperature Development of Tool Dies during Hot Forging

Prediction of damage zone in hot forging die and suggesting proper heat treatment for improving die service life

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