• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>SAE World Congress and Exhibition >Development of a New High Strength Aluminum Casting Alloy for the Production of Suspension Components
【24h】

Development of a New High Strength Aluminum Casting Alloy for the Production of Suspension Components

机译：开发新型高强度铝铸造合金，用于生产悬浮液组分

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Counter Pressure Casting (CPC) process is particularly suited for the production of aluminum suspension components like wheel carriers or steering knuckles. Using a typical AlSi7Mg alloy such as A356 or EN AC-42100, yield strength above 260 MPa and elongation rates above 8% are possible in a high volume production. Although these are very good values for aluminum castings, the yield strength has to be improved to increase the light weight potential of such components. The present work shows how this goal can be achieved by the development of a new aluminum casting alloy. Besides the modification of Si and Mg content, the addition of Cr leads to an additional dispersion hardening effect. In this way, yield strength above 310 MPa combined with an elongation of 7% can be assured in the CPC process after a T6 heat treatment. Fundamental microstructural investigations are shown as well as the results of tensile tests, high temperature strength, corrosion behavior and static and dynamic component testing. All presented results were achieved on existing components like steering knuckles and not on casted test bars. To demonstrate the weight reduction potential of the presented alloy, the product development of a steering knuckle for a rear driven premium car was performed and prototypes were produced in the CPC process. All static and dynamic testings of the resulting components fulfilled the requirements and the series-production readiness was approved.
机译：计数器压力铸造（CPC）工艺特别适用于生产轮载体或转向指关节的铝悬架组件。使用典型的Alsi7mg合金，例如A356或EN AC-42100，在高批量生产中可以获得高于260MPa和高于8％的伸长率的屈服强度。虽然这些是铝铸件的非常好的值，但必须提高屈服强度以增加这些组分的轻质潜力。目前的工作表明，通过开发新的铝铸造合金可以实现这一目标。除了修饰Si和Mg含量之外，加入Cr还导致额外的分散硬化效果。以这种方式，在T6热处理后，CPC工艺中可以确保310MPa的屈服强度在310MPa中结合7％。显示基本微观结构调查以及拉伸试验，高温强度，腐蚀行为和静态和动态组件测试的结果。所有呈现的结果都是在现有组件上实现的，如转向指关节，而不是铸造的测试条。为了证明所呈现的合金的重量降低电位，执行用于后驱动的高级汽车的转向节的产品开发，并在CPC过程中产生原型。所产生组件的所有静态和动态测试都满足了要求，批准了批量生产准备。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号