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How to Avoid Cold Joints and Detached Welds of Welded Screws on Gas‑Spring Cylinders with Special‑Purpose Energy‑Storage Welder for Gas Springs
Sep 10,2026
Spot‑welding of screws on gas‑spring cylinders is completed by special‑purpose energy‑storage welders for gas springs, featuring low welding thermal deformation and fast forming speed. Cold joints, pseudo‑welds and vibration‑induced weld detachment are common defects.
I Welding Difficulties of Gas‑Spring Cylinder Screws
Welding screws onto gas‑spring cylinders belongs to dissimilar‑metal welding between thin‑walled hollow tubular parts and solid screws. The cylinder wall is thin with low heat‑storage capacity and easy to burn‑through and deform; screws are large‑volume and slow‑heating, requiring sufficient heat for fusion. Meanwhile, energy‑storage welding releases energy instantaneously with fast welding speed. Slight deviation in pressure, fitting condition or energy will lead to insufficient fusion and pseudo‑welds.
II Core Causes of Cold Joints and Weld Detachment
1.Dirty and oxidized workpiece surfaces blocking metal fusion
2.Insufficient pre‑welding pressure, tiny gaps existing in fitting interfaces
3.Mismatched welding‑energy parameters
4.Worn and offset electrodes causing unstable electric conduction
5.Loose tooling positioning leading to workpiece shift
6.Large loop loss of equipment resulting in insufficient output energy
III Standardized Process Solutions against Cold Joints and Weld Detachment
1.Strict pre‑welding cleaning to eliminate barrier layers
2.Optimize welding time‑sequence and adopt three‑stage pressure‑stabilized forming
3.Properly match welding energy
4.Regular electrode maintenance and calibration
5.Periodic inspection and maintenance of jigs and tooling
6.Maintain equipment conductive loop for stable output
Wuxi Haifei Intelligent Equipment Co., Ltd. https://www.haifeiwelder.com/
Wuxi Haifei Intelligent Equipment Co., Ltd. has been focusing on the R&D and production of spot‑welding machines for 17 years. The company has obtained ISO9001 Quality Management System Certification, China Compulsory Certification (3C) and CE Certification. It is a National High‑tech Enterprise, a Specialized, Refined, Differential and Innovative Enterprise of Jiangsu Province, a Specialized, Refined, Differential and Innovative Enterprise of Wuxi, and a Gazelle Enterprise in the Southern Jiangsu National Self‑Dependent Innovation Demonstration Zone.
Should you be interested in our spot‑welding machines, please contact us: 400‑0510‑750.
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Wuxi HAIFEI Intelligent Equipment Co., Ltd.
Wuxi HAIFEI Welding Equipment Co., Ltd.
Add: 28 Shuiyun Road, Yuecheng, Jiangyin, Jiangsu Province, China. (Postal Code: 214404)
Mobile: +86 18915302352
Email: wushijie@jshaifei.com