The Latest Improvement Of Resistance Spot Welding Technology For Automotive Body

• Problems and improvements

1. Body stiffness

Traditional spot welding of car bodies can cause deformation, thinning, and reduced structural stiffness. To address this issue, various methods such as variable pressure welding, advanced robot spot welding machines, and plate elastic correction technology can be used to improve the stiffness of the vehicle body.

The welding quality of car body spot welding not only depends on the welding quality but also is related to multiple factors such as electrode quality, welding surface, welding process, etc. Therefore, in order to improve welding quality, it is necessary to strictly grasp various technical points and adjust welding parameters under corresponding process conditions.

2. Intelligence level

With the continuous improvement of intelligence, intelligent automated spot welding machines have also emerged. This type of equipment can achieve multiple varieties and small batch production modes, and can automatically complete the spot welding work of the entire vehicle body, greatly reducing labor and production costs.

• Innovation in patents

In the innovation and application of Electric resistance welding patents, with the continuous development and progress of science and technology, new Electric resistance welding patents are also emerging.
For example, in 2023, Japan invented a "highly carburized ultra wear-resistant copper material for Electric resistance welding", whose surface treatment can improve the wear resistance of resistance welding joints.
In 2023, the United States invented a "detection method for loose particles in resistance band welding", which uses the current intensity and voltage generated in resistance welding to detect the looseness of resistance welding.
In 2023, List of Chinese Inventions invented a "high-speed Electric resistance welding quality discrimination method based on acoustic signal", which uses acoustic signal and data processing technology to realize the discrimination of resistance welding quality.
The application of these new Electric resistance welding patents can not only improve the efficiency and accuracy of Electric resistance welding but also ensure the quality and safety of resistance welding joints.

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