Life Extension of Metal Cutting Tools by Merans of Electro- Spark Alloying

为了延长随着时间和环境而劣化的许多产品的寿命，开发了许多耐磨和/或耐腐蚀涂层。该建议涉及一种简单、廉价的新型涂层工艺，称为电火花合金化（ESA）。这是一种表面沉积和合金化工艺，利用高电流、短持续时间（5 s）、高频（2500 Hz）脉冲和电极的轴向振荡，电极与基材保持恒定接触。PI建议为金属切削工具的这些涂层的上级性能开发工程和科学基础。

To extend the life of many products that deteriorate with time and environment, many wear and/or corrosion resistant coatings were developed. This proposal deals with a simple, inexpensive novel coating process termed Electro-Spark Alloying (ESA). It is a surface deposition and alloying process that utilizes high current, short duration (5 s), high frequency (2500 Hz) pulses and axial oscillation of the electrode that stays in constant contact with the substrate. The PI proposes to develop the engineering and science base for the superior performance of these coatings for metal cutting tools.