This fast paced course “Metallography of Fasteners” organized by ASM International covers proper and efficient sample preparation, interpretation of microstructures of common fastener materials (commercial and aerospace) and imperfections caused by incoming material and manufacturing processes such as heading, heat-treating and thread rolling. Micro-hardness testing to verify case depth will be
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http://www.fastener-world.com.tw/new/news_detail.php?id=4065