Study on hot rolling process of the D51 large-diameter threaded bars

Kim, Jeong-min; Won, Sung-Bin; Kim, Byung-Min

doi:10.1007/s12206-018-0332-4

Cited by 2 publications

(1 citation statement)

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“…They conducted multivariate analysis using the design of experiments technique and derived mechanical and geometric parameters, such as maximum radial force, through finite element simulation to determine optimal conditions for the rolling process. Kim J [14] performed numerical simulations of the hot rolling process of threaded rods using finite element analysis. Song J [15] analyzed the rolling forces, stress and strain fields, and failure process of threaded workpieces during cold roll forming of threads.…”

Section: Introductionmentioning

confidence: 99%

Orthogonal Simulation Optimization of GH4169 Bolt Thread Rolling Process Parameters

Zheng

et al. 2023

Preprint

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GH4169 alloy is a precipitation-strengthened nickel-chromium-iron-based superalloy, widely known for its challenging machinability in thread rolling processes. The optimization of bolt thread rolling process parameters holds significant research importance, particularly for ensuring batch stability in the production of high-end aerospace fasteners. GH4169 bolts are prone to metallographic folding in the crest and root areas after thread rolling, necessitating the urgent need to optimize the thread rolling process parameters. In this study, a finite element simulation model of the GH4169 bolt thread rolling process was established using ABAQUS software. The thread rolling process parameters, including the feed speed of the thread rolling die, feed speed of the thread rolling die, and initial temperature of the workpiece, were optimized through orthogonal simulation. It was found that, while meeting the technical requirements, a smaller thread forming force yielded better results. Range analysis and variance analysis were conducted on the simulation results to determine the influence trend and significance degree of the thread rolling process parameters on the thread forming force. The research findings of this study can effectively guide actual production processes and significantly reduce exploration time in the GH4169 bolt thread rolling process for enterprises.

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Section: Introductionmentioning

confidence: 99%