Technical Analysis:
1. Root Cause: The melting point of zinc (approximately 420°C) is much lower than that of steel (approximately 1500°C). The electric arc heat source causes zinc to vaporize preferentially; if the vapor does not have time to escape, it forms pores; if it breaks through the molten pool, it forms a large amount of spatter and may disrupt the stability of the arc.
2. Core Process:
Pulsed MAG Welding: By precisely controlling the pulse waveform, reducing the average heat input, and giving zinc vapor more time to escape, this is an effective method.
3. Advantages of Robotic Automation:
Stability: The robot can maintain a constant weld extension length, welding speed, and angle, which is a prerequisite for ensuring process consistency.
Precise Parameter Execution: The robotic system perfectly replicates the complex parameters of pulse processes, maximizing its efficiency.
Bevel Design Integration: During the workpiece design phase, we can suggest lap gaps or bevel designs to provide a dedicated escape path for zinc vapor.
Conclusion: Choosing the right process and a highly stable automated system is the only way to achieve high-quality welding of galvanized sheets.
If you are struggling with welding quality issues on galvanized sheets, we have mature solutions. Please contact: Changzhou Anchuang Intelligent Equipment Co., Ltd.
Tel/WhatsApp/WeChat: +86 15151971897
Email: nicole@anchuangwelding.com
Website: www.anchuangwelding.com
