Analysis of Fracture of Automobile Horn Contacts Steel Sheet
1. Introduction
The automobile horn contacts steel sheet plays a vital role in the normal operation of automotive horns. When the automobile contacts steel sheet fails, the horn will not work normally, resulting in the failure of the running process. To analyze the cause of failure of the automobile horn contact steel sheet, identify the cause of the failure of the contact steel sheet, and improve the quality of the contact steel sheet is the key to maintaining the normal operation of the horn.
2. Failure Cause Analysis
The steel sheet of the automobile horn contact is usually made of carbon steel or stainless steel plate, so it is necessary to analyze the common failure mechanisms of these two materials.
(1) Carbon steel plates are quite common failure mechanisms. In particular, carbon steel plates with a low alloy content are more prone to brittle failure due to:
a. Fatigue fractures: Fatigue fractures occur when the load on the steel sheet is cyclic and exceeds its fatigue limit.
b. Local breakdowns: Local breakdowns of carbon steel plates often occur in areas of high residual stress, such as at the welded joint.
c. Brittle fractures: Brittle fractures in carbon steel plates are caused by localized areas of high tensile stress on the steel sheet surface, or by localized areas of high tensile stress on the steel sheet surface.
(2) Stainless steel plates are less prone to failure but can be susceptible to corrosion, which can lead to cracking or corrosion fatigue. In addition, stainless steel plates may also display signs of fatigue cracking due to welding or thermal cutting which can lead to catastrophic failure.
3. Prevention and Countermeasures
In order to improve the quality of automotive horn contacts steel plate, it is necessary to take certain measures, first from the integrity and safety of the product, and secondly, from the production process.
(1) To improve the integrity and safety of automotive horns contacts, the material for producing steel sheets shall be confirmed with high quality materials and specially designed for automotive parts.
(2) In the production process of automotive horn contacts, proper welding and forming processes shall be achieved according to the requirements. In the future, welding processes can be replaced with more reliable techniques such ad laser welding. In addition, in order to ensure the fatigue strength of the steel sheet, appropriate heating and quenching processes are necessary.
(3) It is also important to adopt inspection procedures to ensure the quality of the product. Inspectors shall be trained to detect defects in the steel sheet surface and take necessary countermeasures.
4. Conclusion
Automotive horn contacts steel sheets are important parts that must be properly maintained in order to ensure the normal operation of automotive horns. Proper analysis of failure mechanisms, improved integrity and safety of the steel sheets, and adherence to quality regulations in production are all necessary steps in order to maintain a high quality contact sheet.
