PROBLEM TO BE SOLVED: To provide a technique keeping excellent fatigue strength even after having corrosion.SOLUTION: A suspension spring 2 includes a first portion 11 and a second portion 12 easier to corrode than the first portion 11. A compressive residual stress in a range from the surface of the second portion 12 to the depth of 0.5 mm is 800 MPa or more.
【課題】腐食しても優れた疲労強度を有する技術を提供する。【解決手段】懸架ばね2は、第1の部分11と、第1の部分11より腐食しやすい第2の部分12と、を備え、第2の部分12の表面から0.5mmまでの範囲における圧縮残留応力が800MPa以上である。【選択図】図1
SUSPENSION SPRING AND METHOD OF MANUFACTURING SUSPENSION SPRING
懸架ばね及び懸架ばねの製造方法
2015-07-02
Patent
Elektronische Ressource
Japanisch
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