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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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2030 – 03 -Stress & Strain

Manufacturers will test a metal’s properties to determine its limitations. One way to test a material’s strength is to put force on it until it breaks. Specific equipment is used to pull apart, indent, or bend sample pieces of the material to see how it will react to force.
Stress is a force that is applied either by pound per square inch (psi) or megapascals (MP). Strain is the ratio of change in that occurs under stress in comparison with a metal’s original state. Strain represents the change that occurs physically because of stress.
Special equipment is needed to test these qualities in metals. The data from all these different tests is plotted onto a strain/stress graph. These graphs give industry experts general information about certain materials.

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    In the metal industry, engineers use what type of graph to determine a material’s strength?

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Class: 2030 - Mechanical Properties of Metals - 11 Lessons
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