Process optimization for high integrity magnesium automotive components

高完整性镁汽车部件的工艺优化

• 批准号: 239080-2010
• 负责人: Hu, Hongfa(Henry)
• 金额: $ 2.91万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=455152
• 关键词: Process; optimization; integrity; magnesium; automotive

Over the past 15 years, magnesium (Mg) usage in automobiles has significantly increased by about 15% annually. The average Mg content in the 2007 model cars was about 6 kg, and is expected to increase to 160 kg by 2020. Currently, Mg automotive applications are produced by conventional high pressure die casting (HPDC) processes, which result in materials with high porosity content and low strengths. Recent studies have demonstrated that the squeeze casting process is able to significantly eliminate porosity and other casting defects in magnesium alloys. However, squeeze casting is relatively costly compared with conventional HPDC due to higher process operation and tooling costs. To maximize the engineering performance and quality of Mg squeeze castings at a competitive cost, the squeeze casting process needs to be optimized.

在过去的15年中，汽车中的镁（MG）使用量显着增加了约15％。 2007型汽车中的平均MG含量约为6千克，预计到2020年将增加到160千克。目前，MG汽车应用是由常规高压铸件（HPDC）过程产生的内容和低优势。最近的研究表明，挤压铸造过程能够显着消除镁合金中的孔隙率和其他铸造缺陷。但是，由于工艺运营和工具成本更高，与常规HPDC相比，挤压铸造相对昂贵。 为了最大程度地提高MG挤压铸件的工程性能和质量，需要优化挤压铸造过程。