
mechanical parts and precision tools are designed for operating conditions with intense speed, precision and reliability. Over time, however, small imperfections and defects on surfaces of tools can be developed and will begin producing a decrease in operating performance. These defects are the result of surface abrasion caused by friction, contact with corrosive materials, and many other operating conditions. Cleaning, sanding and polishing of simple measures that can be taken to eliminate the corrosive particles in the surface finish. However, manufacturing operations must be closed each time the tool must be polished, which can cause large productivity losses. In addition, the repeated use of chemical polishing and polishing can remove the surface layers, modify the precise dimensions needed for optimal performance. A long term solution is more effective application of coatings to maintain and / or increase operational performance. Precision coatings are able to increase resistance to abrasion tool, and maintain the integrity of the original surface. Conventional processes such as plating and PVD (PVD) is often used for metals (nickel or chromium) or other hard coatings (TiN, CrN). But these conventional methods require both the pre-coating layer and subsequent treatments as the complexity and costs for the process. In addition, these conventional coating processes and plants operate at high temperatures can distort the size and bulk properties of the components being coated. Improved ion beam deposition is a DC and chromium alternative process is entirely physical rather than chemical or thermal. IBED process does not require pre-treatment or post-coating surface grinding or polishing. IBED coatings are applied at temperatures not exceeding 200 ° F, and no toxic chemicals used or wastes are produced. The end result is a high performance coating maximizes tool performance without compromising the accuracy of the original dimensions, surface finishes, or the properties of bulk materials. A comparison of conventional methods of seed coating and coating process IBED:
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A comparison of surface coatings for precision engineering machine tools
Posted by admin on July 13th, 2010
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