Study of Heat Treatment Processes for Crown Nuts
DOI:
https://doi.org/10.31305/rrijm.2026.v11.n04.032Keywords:
41Cr4 steel, heat treatment, quenching, hardnessAbstract
The purpose of this study is to experimentally determine the heat treatment parameters for 41Cr4 steel that ensure an optimal balance of hardness, strength, and ductility in crown wrenches. The novelty of the work includes comparing heat treatment times of 10 and 27 minutes during quenching, assessing the effect of partial qunching on the hardness distribution, and taking into account the influence of the geometric shape of the tool on the efficiency of the heat treatments cycle. The cumulative results demonstrate that a hardness range of 50-55 HRC is optimal for the steel crown wrench. The optimal hardening temperature range is 830-860 °C with a holding time of approximately 27 minutes.
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