Abstract

A wide variety of coating methods and materials are available for different applications while the common purpose of all of them is protecting a part or structure exposed to mechanical or chemical damage. Decreased manufacturing cost is another important advantage of having a coating layer on substrate materials when there is a need for a high-performance and expensive material on the exposed surfaces of a part. In such cases, the part body may be manufactured out of less expensive materials and coated by the desired expensive material only at the exposed surfaces. Laser-assisted processes, such as laser cutting, laser welding, laser-assisted coating, etc. are a revolutionary set of processes in fabricating mechanical parts using a laser as the heat source. Laser-based processes have also been employed to create material deposition on selected areas to provide a protective layer. Depending on the deposited materials, these protective layers can serve to enhance corrosion and wear resistance, heat transfer, and mechanical behavior of substrates. To date, numerous laser-assisted processes have been introduced and investigated. Although each of these processes provides advantages, there are always drawbacks limiting their applications. In this article, laser-assisted coating methods are categorized, and a comparative study of these techniques is presented. It is likely to see higher qualities of protection by evolving more advanced techniques and materials in the future.

摘要

多种涂层方法和材料可用于不同的应用，而所有这些方法和材料的共同目的是保护暴露于机械或化学损坏的部件或结构。当需要在零件的暴露表面上使用高性能且昂贵的材料时，降低制造成本是在基板材料上具有涂层的另一个重要优势。在这种情况下，零件主体可以由较便宜的材料制成，并仅在暴露表面涂上所需的昂贵材料。激光辅助工艺，如激光切割、激光焊接、激光辅助涂层等，是使用激光作为热源制造机械零件的一系列革命性工艺。也已采用基于激光的工艺在选定区域上进行材料沉积以提供保护层。根据沉积的材料，这些保护层可用于增强基材的耐腐蚀性和耐磨性、热传递和机械性能。迄今为止，已经引入和研究了许多激光辅助工艺。尽管这些过程中的每一个都提供了优点，但总是存在限制其应用的缺点。在本文中，对激光辅助涂层方法进行了分类，并对这些技术进行了比较研究。通过在未来发展更先进的技术和材料，它可能会看到更高质量的保护。这些保护层可用于增强基材的耐腐蚀性和耐磨性、传热性和机械性能。迄今为止，已经引入和研究了许多激光辅助工艺。尽管这些过程中的每一个都提供了优点，但总是存在限制其应用的缺点。在本文中，对激光辅助涂层方法进行了分类，并对这些技术进行了比较研究。通过在未来发展更先进的技术和材料，它可能会看到更高质量的保护。这些保护层可用于增强基材的耐腐蚀性和耐磨性、传热性和机械性能。迄今为止，已经引入和研究了许多激光辅助工艺。尽管这些过程中的每一个都提供了优点，但总是存在限制其应用的缺点。在本文中，对激光辅助涂层方法进行了分类，并对这些技术进行了比较研究。通过在未来发展更先进的技术和材料，它可能会看到更高质量的保护。对激光辅助涂层方法进行了分类，并对这些技术进行了比较研究。通过在未来发展更先进的技术和材料，它可能会看到更高质量的保护。对激光辅助涂层方法进行了分类，并对这些技术进行了比较研究。通过在未来发展更先进的技术和材料，它可能会看到更高质量的保护。