For the purpose of weight reduction and improvement in fuel economy of vehicles, we developed and put in practical use the high strength bolt (following 13 T) which is excellent in delayed fracture resistance in all the environment of the bolt currently used for the automobiles, and which guarantees 1300 MPa or more of tensile strength. The points of development are in the optimization of chemical composition design and heat treatment conditions which noted the following three points. In the delayed fracture tests which simulated much corrosion environments like the salt splaying in axle parts and acid corrosion environment like the blowby gas inside engine, high reliability of the developed 13T bolt was confirmed.
Development of High Strength Bolt for Automobile Use
Sae Technical Papers
International Body Engineering Conference & Exposition ; 2003
27.10.2003
Aufsatz (Konferenz)
Englisch
20037061 2003-01-2785 Development of High Strength Bolt for Automobile Use
British Library Conference Proceedings | 2003
|High-strength automobile anti-theft bolt and mounting method thereof
Europäisches Patentamt | 2021
Development of High Strength Bolt for Connecting Rod
British Library Conference Proceedings | 1992
|Bolt assembly, automobile escape skylight and automobile
Europäisches Patentamt | 2024
|