What are the characteristics of fasteners that are closely related to automotive manufacturing?

What are the characteristics of fasteners that are closely related to automotive manufacturing?

Fasteners and automobiles share closely related characteristics. Fasteners have a crucial role in the automobile, and their quality significantly impacts the car's performance and safety. This necessitates the strict control of fasteners to enhance the car's quality. Threaded fasteners, prevalent in automobile essential parts, are classified into security fasteners, critical fasteners, and general fasteners based on their level of importance. The quality of security and essential fasteners, in particular, directly influences the performance and safety of the entire vehicle.

(1) Processing technology flow

The fastener processing technology flow of domestic production enterprises is the same, mostly: raw material procurement → raw material reforming into material → cold upsetting forming → heat treatment → (a small amount of auxiliary mechanical processing) → thread processing → surface treatment → finished product appearance selection → packaging → storage or shipment.

(2) Key quality characteristics of automotive fasteners

Automotive fasteners are those whose failure will directly lead to fatal accidents in the whole vehicle. They belong to security fasteners, such as wheel wheels, half shaft bolts, steering arm bolts, rivets, U bolts, and brake drum bolts. The essential quality characteristics of these fasteners are often material, hardness, mechanical properties, thread accuracy, thread diameter, critical assembly dimensions, and surface fatal defects. Therefore, strict control of these quality characteristics is the key to improving the quality of security fasteners!

(3) Fastener processing quality control

The quality characteristics of fasteners are affected by the whole process of each link of the quality of work, so it is necessary to establish a strict quality control system for each processing link since the procurement of raw materials, finished materials, product process preparation, and mold design, cold heading forming, heat treatment, thread processing, surface treatment (to remove hydrogen embrittlement) until the packaging, storage, and transportation of the entire link to set up a control point, so that the fasteners in the production process as a whole The quality of fasteners in the production process as a whole is entirely under control, to ensure that product quality to meet customer needs fully. At the same time, the entire process of product production must be established for each product, each batch of the production process as a whole quality process card (card content indicates the material manufacturer, furnace number, brand, production batch, product name, model, quantity and time), so that product quality in each link has traceability.

In recent years, major automotive companies have recognized the importance of fasteners in vehicles and strengthened the control of fasteners' incoming inspection, leading to fierce competition in the industry. The manufacturer Juxin Fasteners has been continuously improving the quality of its products and trying to reduce the PPM value to occupy a place in the field of automobile support and enhance the visibility of its products.

After years of development, Juxin Fasteners has a reasonable and perfect testing process and a full range of testing equipment to ensure that each product can meet customer requirements or relevant standards. Our laboratory has passed the European Union's CNAS certification. It has material analyzers, tensile testing machines, hardness testers, torque testers, thickness testers, metallographic analyzers, flaw detection instruments, salt spray testers, and other testing equipment. Our mission is to provide our customers with high-quality, stable, compliant products.

For high-quality Alloy Steel Screws fasteners and professional technical support, don't hesitate to co don't us at adelajonly@gmail.com or visit our website at [Juxin Fasteners]: https://www.juxinfasteners.com.