Spring and method of manufacturing spring

摘要

PROBLEM TO BE SOLVED: To provide a spring having high dimensional accuracy and having a non-linear spring characteristic, and a method for manufacturing the spring. A spring portion and terminal portions provided at both ends of the spring portion are provided, and the spring portion and the terminal portion are integrally formed of a sintered metal material, and the spring portion is integrally formed of a sintered metal material. A spring including a first spring portion having a relatively small cross-sectional area and a second spring portion having a relatively large cross-sectional area. [Selection diagram] Fig. 1