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    • Successful manufacturing requires mastery of a critical body of knowledge that includes essential concepts in applied mathematics, measurement and inspection, safety, and quality/lean.

    • Materials are very important to manufacturing and determine how well your application performs. Today, options include metals, ceramics, plastics, and composites, to name a few.

    • Machining best practices are specific to either the task or the device. For grinding, metal-cutting, or work holding, many tools can be used to complete the task.

    • Every workplace requires an understanding of the essential safety practices and topics that help employees to avoid potential hazards.

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2040 – 09 – Defining Corrosion and Degradation Resistance

A material’s ability to resist deterioration is another essential physical property. In metals and ceramics, deterioration is called corrosion, while deterioration in plastics is called degradation. A number of abrasive substances, such as salts, acids, water, pollution or even oxygen can cause a material to corrode or degrade.

Corrosion can happen anywhere on a workpiece. But when it occurs in specific, often undesirable locations, corrosion is called pitting. Crevice corrosion can also occur, wreaking havoc along riveted or bolted joints.

It’s key to point out, though, that not all corrosion causes damage – some corrosion is essential to a finished product. An intentional layer of corrosion can protect some metals through a process called passivisation. Metals like aluminum, titanium, and stainless steel all need corrosion to be used properly.

But it’s the metals that resist corrosion that are most useful in the chemical, food, and manufacturing industries. They help to bring down costs and are essential to creating safer products.

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    List a few abrasive substances that cause corrosion talked about in the video? 

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Class: 2040 - Physical Properties of Metals - 10 Lessons
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