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고체역학설계실습 실험 메뉴얼

저작시기 2013.12 |등록일 2017.03.25 파일확장자어도비 PDF (pdf) | 41페이지 | 가격 2,000원

목차

1. Hardness test
2. Metallurgical microscope test
3. Impact test
4. Tensile test experiment manual

본문내용

1. Purpose of the test
The purpose of the hardness test is to obtain hardness value, speculate the strength from the hardness value or compare the treated condition or heat-treated condition of a test specimen from the hardness value. In the case that you want to find out simple hardness value, there is not much problem. You can just choose a proper test method. On the other hand, if you speculate the strength from the hardness value, the basic purpose is to speculate the strength from the hardness value. In case of a test specimen with the treated surface such as a carburized test specimen or work-hardened materials, you can speculate the strength of a test specimen with the work-hardened surface from the hardness value. In case that you want to find out the treated condition or heat-treated condition of a test specimen, you should choose a proper order or method for measuring the hardness. Generally in this case, it is required to measure the hardness twice with the pressure or load changed.

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