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Manufacturing Technology Insights | Saturday, September 30, 2023
Heat-treating and hot blackening both involve high temperatures to enhance the durability of metals. During blackening, a layer of black oxide is deposited on the surface of the metal to improve its abrasion resistance, while heat-treating hardens it.
Fremont, CA: Undoubtedly, metal finishing plays a vital role in many modern manufacturing processes. However, the industry has likely only scratched the surface of its potential despite the practice itself being by no means new. Demand for faster, cheaper, and more resilient finishing is rising, driving innovation.
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In 2020, the metal finishing market is expected to be worth $95.2 billion, and experts anticipate strong growth. The manufacturing industry will continue to grow, resulting in a greater demand for various metal finishing processes. As a result, advances in the former have a positive ripple effect on the latter.
A Review of the Metal Finishing Process
In manufacturing, metal finishing is often carried out at the end. There are a variety of specifics depending on the facility, technology, and goal. Still, it generally involves coating, cleaning, or otherwise treating metal to improve its performance or appearance. Some finishes can make metal 85 percent more corrosion-resistant, while others may make it more visually appealing.
Among the simplest forms of surface preparation are brushing, polishing, and grinding, which involve smoothing metal surfaces rather than treating them with an abrasive substance. Vibratory finishing and blasting achieve a similar effect but use more advanced techniques.
Heat-treating and hot blackening both involve high temperatures to enhance the durability of metals. During blackening, a layer of black oxide is deposited on the surface of the metal to improve its abrasion resistance, while heat-treating hardens it.
Metal finishing, electroplating, and powder coating will likely come to mind.
Recent Innovations in Metal Finishing
Several of these metal finishing techniques have been around for decades, if not longer. Metal finishing today often looks very different from what it used to look despite basic finishing concepts being quite old. Several groundbreaking innovations have contributed to the advancement of this practice over the past few years.
Hydrophobic and Hydrophilic Prepainted Metal
Painting or coil-coating metal before fabrication achieves an even and durable finish. New technologies have made the practice more valuable since the mid-20th century. It is important to note that hydrophobic and hydrophilic coatings are some of the most promising.
Nanotech Coating
Even though most modern metal finishes are extremely thin, new technologies have made it possible to coat metal at nanoscales. The thickness of these finishes ranges from 1 to 100 nanometers, while the average length of a human hair is about 80,000 to 100,000 nanometers. It is possible to provide desirable characteristics with minimal mass increases at this microscopic scale, giving manufacturers more control over the metal's properties.
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