Method for producing hollow stabilizer
AssigneeNHK Spring Co., Ltd.
InventorsYutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
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Abstract
A method of manufacturing a hollow stabilizer includes a forming step of subjecting an element pipe to a bending process, to form a product shape including bent portions, and a quenching step of quenching the element pipe subjected to the bending process. In the quenching step, a cooling process is performed by immersing the element pipe made of steel in coolant and by spraying the coolant to an outer surface of the bent portion.
Claims16
A method of manufacturing a hollow stabilizer, which is provided in a vehicle, the hollow stabilizer including a torsion portion extending in a vehicle width direction;
- an arm extending in a vehicle front-rear direction;
- and a bent portion connecting the torsion portion and the arm, wherein
- the method comprises:
- a forming step of subjecting an element pipe as a material of the hollow stabilizer to a bending process, to form a product shape including the bent portion;
- and
- a quenching step of quenching the element pipe subjected to the bending process, and
- in the quenching step, a cooling process is performed by immersing the element pipe in coolant and by spraying the coolant to an outer surface of the bent portion.
A method of manufacturing a hollow stabilizer, which is provided in a vehicle, the hollow stabilizer including a torsion portion extending in a vehicle width direction;
- an arm extending in a vehicle front-rear direction;
- and a bent portion connecting the torsion portion and the arm, wherein
- the method comprises:
- a forming step of subjecting an element pipe as a material of the hollow stabilizer to a bending process, to form a product shape including the bent portion;
- and
- a quenching step of quenching the element pipe subjected to the bending process, and
- in the quenching step, a cooling process is performed by immersing the element pipe in coolant and by injecting the coolant into the element pipe.
Dependencies are inferred from the claim text.