80 response to a question on material

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Uploaded: 28.12.2011
Content: 80.zip 6,1 kB
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Archive zip, containing the answer to question 80: Assign mode processing gear from steel 20, which provides tooth hardness 58 ... 62 HRC. Describe the conversion occurring in steel, the structure and properties of the surface of the tooth and gear core after heat treatment.

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