基于滚压强化的钛合金零件工艺改进

朱朝晖; 刘进明

doi:10.13228/j.boyuan.issn1005-8192.2015063

金属功能材料 ›› 2015, Vol. 22 ›› Issue (5) : 57-59. DOI: 10.13228/j.boyuan.issn1005-8192.2015063

基于滚压强化的钛合金零件工艺改进

朱朝晖, 刘进明

作者信息 +

Process improvement of titanium alloy parts based on rolling strengthening

ZHU Zhao- hui，LIU Jin- ming

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摘要

为了提高Ti- 6Al- 4V零件的疲劳强度，采用滚压强化的工艺方法加工零件的过渡圆角和螺纹。针对零件滚压后出现了表面缺口及表面裂纹等缺陷，从零件的技术要求入手分析不合格原因，改进了工艺，使得产品合格率从86.7%上升到了96%，并对该工艺改进进行了讨论，提供了可借鉴的经验。

Abstract

In order to improve the fatigue strength of Ti- 6Al- 4V parts，the transition fillet and the thread of the parts are worked by rolling strengthening process. However, notch and crack defects appeared on surface after rolling. So the reason for the failure of the transition fillet and the thread surface is analyzed from the technical requirements analysis, the product qualification rate is greatly raised from 86.7% to 96% after the process improvement. Three referential experiences are provided after the process improvement was discussed.

关键词

关键词：疲劳强度 / 滚压强化 / 裂纹 / 粗糙度

Key words

Keywords: fatigue strength / rolling strengthening / crack / surface roughness

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导出引用

朱朝晖, 刘进明. 基于滚压强化的钛合金零件工艺改进[J]. 金属功能材料, 2015, 22(5): 57-59 https://doi.org/10.13228/j.boyuan.issn1005-8192.2015063

ZHU Chao-Hui, LIU Jin-Ming. Process improvement of titanium alloy parts based on rolling strengthening[J]. Metallic Functional Materials, 2015, 22(5): 57-59 https://doi.org/10.13228/j.boyuan.issn1005-8192.2015063

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