Stabilizer
AssigneeNHK Spring Co., Ltd.
InventorsShinichiro Kuwatsuka, Yurika Okudaira, Akira Tange, Hideki Okada, Ken Takahashi
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Abstract
A stabilizer formed by using a metal bar having a solid structure and configured to reduce a displacement between right and left wheels, including a torsion part extending in a vehicle width direction, being capable of a torsional deformation, and having a diameter of 10 to 32 mm, is provided. The stabilizer has a chemical composition containing at least C: 0.15% by mass or more to 0.39% by mass or less, Mn, B, and Fe, and also has a metal structure 90% or more of which is a martensite structure.
Claims3
A stabilizer formed by using a metal bar having a solid structure, the stabilizer comprising:
- a torsion part extending in a vehicle width direction, and having a diameter of 10 to 32 mm,
- wherein the stabilizer has a chemical composition containing at least C:
- 0.15% or more to 0.39% or less by mass, at least Mn:
- 0.50% or more to 1.70% or less by mass, and at least B:
- 0.0005% or more to 0.0003% or less by mass, and Fe, and also has a metal structure 90% or more of which is a martensite structure, the stabilizer having a Rockwell hardness (HRC) of 44.5 or more, and a Charpy impact value of 30 J/cm2 or more at room temperature, and
- wherein a compress residual stress is present from a stabilizer surface to a depth of at least 0.8 mm, and has a value of 150 MPa or more under no load.
Dependencies are inferred from the claim text.