汽车零部件表面强化技术研究现状及展望

在传统渗碳、渗氮及表面淬火工艺的汽车零部件表面强化技术基础上,简单综述了传统工艺在汽车零部件表面强化上应用的工艺优缺点及研究现状,重点阐述了新型表面形变强化、高能束流表面强化、表面冶金强化、表面复合强化及表面纳米强化的汽车零部件表面强化技术,详细介绍了目前广泛使用的新型表面形变强化中的喷丸强化工艺、高能束流表面强化中的激光表面淬火与电子束表面淬火工艺及表面冶金强化中等离子喷涂工艺的技术特点和应用现状,分析了国内外汽车零部件表面复合强化技术和表面纳米强化技术的工艺特点和研究现状,尤其是将表面复合强化技术中的传统工艺与传统工艺、传统工艺与新型工艺、新型工艺与新型工艺的多种复合工艺的相互结合及QPQ盐浴复合处理技术在汽车零部件表面强化上的应用,最后展望了未来汽车零部件表面强化技术的发展方向。

Research Status and Prospects of Surface Strengthening Technology of Auto Parts

Based on the surface strengthening technology of auto parts such as the traditional carburizing, nitriding, and surface quenching process, research status and application of traditional process for surface strengthening of auto parts were briefly re-viewed. Advantages and disadvantages of traditional process in applications were pointed out, the new surface deformation strength-ening, high-energy beam surface strengthening, surface spray coating strengthening, surface compound strengthening and surface nano-strengthening of auto parts were expounded emphatically. The technical characteristics and application status of the currently widely used new shot peening of surface deformation strengthening, laser and electron beam surfacing quenching process of high-energy beams for surface strengthening and plasma spray coating of surface spray coating strengthening were introduced in detail. The research progress and process characteristics of compound strengthening technology of auto part surface and surface nano-strengthe-ning technology at home and abroad were analyzed, especially the application of compound strengthening technology in auto part surface strengthening, such as combination of traditional process and traditional process, traditional process and new technology, new technology and new technology as well as QPQ compound technology. In the end, the development of surface strengthening technology for auto parts was prospected.