The electronic safety airbag system is a passive safety (see automotive safety performance) protection system that, when used in conjunction with seat belts, can provide effective collision protection for passengers. Car airbags mainly provide protection for head-on collisions. When the front of the vehicle is impacted, the igniter in the center of the airbag inflator is started by the sensor, ignites the sodium azide particles in the inflator, and releases the gas whose main component is nitrogen.
 

The gas enters the airbag through the filter to remove ash impurities and inflate it. Generally, airbags are designed to complete the inflation process within 0.04 seconds. The fiber materials used for airbags require high strength, good thermal stability, energy absorption, good coating adhesion, and the ability to maintain good functionality even in extreme high temperatures and cold conditions. The following introduces the technology of laser welding machine in welding safety airbags.

The main components of a safety airbag are composed of collision sensors, control modules, gas generators, and airbags. Due to the high strength requirements of airbags and the unique advantages of laser welding technology, laser welded stainless steel or high-strength structural steel gas generator shells have been adopted one after another. The gas generator used for laser welding of car airbags utilizes local heating to achieve welding. The workpiece is less prone to thermal damage and deformation, with high bonding strength and water pressure resistance up to 70MPa (depending on the material), high safety and reliability; When welding the shell of the car airbag, as the temperature does not rise, welding can be carried out on the shell after filling with gas production agent, and the welding process is very safe.

The laser welding machine for automotive safety airbags can weld difficult to access parts, implementing non-contact long-distance welding with great flexibility. Especially in recent years, fiber optic transmission technology has been adopted in laser processing technology, making laser welding technology more widely promoted and applied. Due to the high strength requirements of airbags and the unique advantages of laser welding technology, automobile manufacturers have adopted laser welded stainless steel or high-strength structural steel gas generator shells.

Features of laser welding machine for car safety airbags:

1. The weld penetration is large, which can reach 2~3mm. The welding strength is high, and the Heat-affected zone is small;

2. High degree of automation, easy to control, and fast speed;

3. The laser welding machine for car safety airbags has high welding accuracy;

4. Non contact processing without the need for welding auxiliary tools;

5. The laser welding machine for car airbags does not require welding rods or filler materials for welding, and the weld quality is excellent.

Advantages of laser welding machine in welding automotive airbags:

1. Welding the airbag gas generator belongs to the category of locally heated workpieces that do not cause thermal damage and have low thermal distortion,

2. The temperature rise of the shell after welding is not high, and the welding process of the shell can be carried out safely and reliably after filling with gas production agent,

3. The welding airbag gas generator has high bonding strength, water resistance up to 70MPa (depending on the material), high safety, and high reliability,

4. Welding operation has good stability, high yield, and does not require welding rods or filler materials during welding, resulting in a weld seam that is free of impurities and pollution.

The above are the technological advantages of laser welding machines in welding automotive airbags. Laser welding production lines have emerged on a large scale in the automotive manufacturing industry, becoming one of the outstanding achievements of the automotive manufacturing industry. The laser welding machine for car safety airbags has high cost-effectiveness, beautiful welding appearance, fast speed, large depth, no deformation, high precision welding strength, and can be fully automated and mass-produced 24 hours a day.
 

About HGTECH

HGTECH is the pioneer and leader of laser industrial application in China, and the authoritative provider of global laser processing solutions. We comprehensively layout the construction of laser intelligent equipment, measurement and automation production lines, and smart factories to provide an overall solution for intelligent manufacturing.

We deeply grasp the development trend of manufacturing industry, constantly enrich products and solutions, adhere to exploring the integration of automation, informatization, intelligence and manufacturing industry, and provide various industries with laser cutting systems, laser welding systems, laser marking series, laser texturing complete equipment, laser heat treatment systems, laser drilling machines, lasers and various supporting devices The overall plan for the construction of special laser processing equipment and plasma cutting equipment, as well as automatic production lines and smart factories.