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Influence of hardenability on gear distortions caused by hardening. (2nd report, Through-hardening of gears made of low-alloyed steels)

Hiroshige FUJIO, Koji Yamada

Abstract

焼入れ性の異なる4種類の低合金鋼製平歯車のずぶ焼入れ実験によれば,歯車の焼入れ変形は歯車材料の焼入れ性だけでなく,熱膨張試験による残留いずみも部分的に関与していることを示すとともに,それらの積と,歯車の焼入れ変形との間に相関性があることが明らかとなった.また,同一材料で結晶粒度が異なる場合は焼入れ性のみで焼入れ変形が特徴づけられることを示した.

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Key concepts: Hardenability, Hardening (computing), Materials science, Metallurgy, Case hardening, Forensic engineering, Composite material, Engineering