号数 ばね論文集 58 号( 2013 年)
ページ数 pp.49-77
種類 共同研究
論文名 コイルばねの形状と特性に及ぼす焼鈍条件
Title The Annealing Conditions of Coil Spring
著者 コイルばねの形状と特性に及ぼす焼鈍条件研究委員会 
Author Research Committee for the Annealing Conditions of Coil Spring 
抄録  
Abstract In coil spring manufacturing process, the low temperature annealing after coiling is an important process. It is known that the dimension of coil spring varies after the low temperature annealing. We measured systematically this dimensional change. After the low temperature annealing, the coil diameter of SWP-B (SW-C, SWOSC-V) spring becomes smaller, and that of stainless steel wire (SUS304WPB) becomes larger. The low temperature annealing is also important from the stand point of sag resistance. When we do not apply this annealing, we get large sag in a clamping test. The value is more than 10 times compared with normal processing. Don’t miss low temperature annealing process, in order to obtain a good spring. 
著者の所属  
Belonging  
Key Words Low temperature annealing, Load loss, Steel wire, Spring, Demention(Coil Diameter, Free Height)