Structure and Performance Control Strategy of Lightweight Aluminum Alloy Wheel Hubs under Step Quenching

doi:10.3969/j.issn.1004-132X.2023.10.011

China Mechanical Engineering ›› 2023, Vol. 34 ›› Issue (10): 1214-1219,1229.DOI: 10.3969/j.issn.1004-132X.2023.10.011

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Structure and Performance Control Strategy of Lightweight Aluminum Alloy Wheel Hubs under Step Quenching

CHI Hui1;YAN Meng1，3;XIANG Pengfei1，2;XU Zhengqi1，2;AN Zijun1;HUANG Huagui1，2

1.College of Mechanical Engineering，Yanshan University，Qinhuangdao，Hebei，066004
2.National Engineering Research Center for Equipment and Technology of Cold Strip Rolling，Qinhuangdao，Hebei，066004
3.Hebei Light Structural Equipment Design and Manufacturing Technology Innovation Center，Qinhuangdao，Hebei，066004

Online:2023-05-25 Published:2023-06-07

轻质铝合金轮毂分级淬火形性调控策略

池慧1;燕猛1，3;项鹏飞1，2;徐正琦1，2;安子军1;黄华贵1，2

1.燕山大学机械工程学院，秦皇岛，066004
2.国家冷轧板带装备及工艺工程技术研究中心，秦皇岛，066004
3.河北省轻质结构装备设计与制备工艺技术创新中心，秦皇岛，066004

通讯作者: 黄华贵（通信作者），男，1978年生，教授、博士研究生导师。研究方向为材料形性一体化调控技术。E-mail：hhg@ysu.edu.cn。
作者简介:池慧，男，1987年生，高级工程师、博士研究生。研究方向为轮毂热处理变形调控策略。E-mail：chihui@dicastal.com。
基金资助:
国家自然科学基金(51974278)；河北省自然科学基金(E2020203118)；秦皇岛市科技支撑计划(202101A341)

Abstract

Abstract: In order to realize the heat treatment deformation control of lightweight aluminum alloy wheel hubs， a new step quenching process of spray+water was proposed herein. The precision heat treatment test devices were set up and the end-face deformation detection devices were designed to analyze the deformation characteristics of lightweight aluminum alloy wheel hubs. The results show that the deformation characteristics of the inner/outer rim end-faces of the wheel hubs are affected by the structural stiffness of the wheel hubs， and the deformation characteristics of the inner rim follow the deformation characteristics of the outer rim. Due to the uneven heat transfer and internal structural defects of the wheel hubs， the overall deformation presents a certain random characteristics. The mechanics properties and hardness indexes of the monitoring points of the wheel hubs meet the requirements of the national standard under the new graded zone quenching process of spray+water. The maximum reduction of the outer rim end-face deformation is as 41.5%， which may effectively improve the heat treatment end-face deformation characteristics of lightweight aluminum alloy wheel hubs.

Key words: , aluminum alloy wheel hub, end-face deformation, step quenching, structure and performance control

摘要： 为实现轻质铝合金轮毂的热处理变形精准调控，提出了喷淋+入水的新型分级区域淬火新工艺，通过搭建铝合金轮毂分级热处理试验平台及设计轮毂端面变形检测装置，对轻质铝合金轮毂热处理变形特性进行了详细分析。研究结果表明，轮毂内/外轮缘端面变形特性受轮毂结构刚度的影响，内轮缘变形呈现与外轮缘随动的变形特征；受轮毂换热不均匀、内部组织缺陷等影响，整体变形呈现一定的随机特性。在喷淋+入水的新型分级区域淬火新工艺下，轮毂典型监测点力学性能、硬度指标满足国标要求，轮毂外轮缘端面变形最大减幅达41.5%，新工艺可有效改善轻质铝合金轮毂的热处理轮毂端面变形情况。

关键词: 铝合金轮毂, 端面变形, 分级淬火, 形性调控

CLC Number:

TG156

CHI Hui, YAN Meng, XIANG Pengfei, XU Zhengqi, AN Zijun, HUANG Huagui, . Structure and Performance Control Strategy of Lightweight Aluminum Alloy Wheel Hubs under Step Quenching[J]. China Mechanical Engineering, 2023, 34(10): 1214-1219,1229.

池慧, 燕猛, 项鹏飞, 徐正琦, 安子军, 黄华贵, . 轻质铝合金轮毂分级淬火形性调控策略[J]. 中国机械工程, 2023, 34(10): 1214-1219,1229.

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Structure and Performance Control Strategy of Lightweight Aluminum Alloy Wheel Hubs under Step Quenching

轻质铝合金轮毂分级淬火形性调控策略

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