Electrospark deposition (ESD) attracts special attention from scientists and engineers because of its unique advantages. However, the ESD process has been carried out by hand up to the present. This prevents ESD from preparing complex curve/surface coatings owing to manual operation characteristics. To meet the coating precise preparation requirements for a lot of parts with complex surface from various industrial fields, this paper aims to obtain a new automatic ESD equipment, process and preparation methodology for complex surface coatings.,By designing a special deposition holder and re-programming programmable machine controller, an ESD power supply and a computer numerical control milling machine are integrated to obtain an electrospark-computer integrated deposition system (ES-CIDS). Then, based on the ES-CIDS, a new ESD process, named electrospark-computer numerical control deposition (ES-CNCD) is developed. Furthermore, complex surface coatings are depicted using non-uniform rational B-spline mathematical model and modeled in a special software developed via MATLAB. Finally, deposition programs for a complex coating are generated using golden section interpolation method, and transferred to and executed by the ES-CIDS to accomplish the preparation of the complex surface coating.,This paper demonstrates that it is possible and feasible to prepare complex surface coatings via an automatic ESD process (namely, ES-CNCD) precisely.,This paper can make automatic ESD process get more attention from scientific researchers and engineers, and promote the research of the ES-CNCD process/equipment.,The ES-CNCD process can be used in the manufacturing of complex surface coatings, and in the remanufacturing of complex shape parts.,The ES-CIDS/ES-CNCD can promote the development of related equipment and technology, and bring opportunities and employment to ESD industry.,This work prepares complex surface coatings precisely for the first time using a new automatic ESD process (ES-CNCD), which has wide application prospects in various industries.

中文翻译：

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基于电火花计算机集成沉积系统的复杂表面涂层制备

电火花沉积 (ESD) 因其独特的优势而受到科学家和工程师的特别关注。然而，ESD工艺一直是手工进行的。由于手动操作特性，这可以防止 ESD 准备复杂的曲线/表面涂层。为满足各工业领域大量复杂表面零件的涂层精密制备要求，本文旨在获得一种新型的复杂表面涂层自动ESD设备、工艺和制备方法。编程可编程机器控制器、ESD电源和计算机数控铣床集成，得到电火花-计算机集成沉积系统（ES-CIDS）。然后，基于 ES-CIDS，一种新的 ESD 工艺，开发了名为电火花计算机数控沉积（ES-CNCD）。此外，复杂的表面涂层使用非均匀有理 B 样条数学模型进行描述，并在通过 MATLAB 开发的特殊软件中建模。最后,利用黄金分割法生成复杂涂层的沉积程序,并传输到ES-CIDS并由其执行,完成复杂表面涂层的制备。,本文证明了制备复杂表面的可能性和可行性精确地通过自动ESD工艺（即ES-CNCD）进行涂层。,本文可以使自动ESD工艺得到科研人员和工程师的更多关注，促进ES-CNCD工艺/设备的研究。,ES-CNCD工艺可用于制造复杂的表面涂层，