Introduction
The welding of stainless steel pipes demands a high level of precision and reliability to ensure leak-proof and robust joints. In this technical article, we will explore the results of a seal welding test conducted on a stainless steel tube with a wall thickness of 0.35mm using a diode laser welding machine. The method employed involves CW mode welding with pure Ar gas protection, and the article concludes with the stability of the welding process and the absence of defects, such as cracks and pores, resulting in smooth and flawless weld seams.
Test Setup and Specifications
The test materials consist of a stainless steel tube with a wall thickness of 0.35mm, known for its corrosion resistance and durability. To carry out the welding process, a state-of-the-art diode laser welding machine was utilized. This advanced equipment offers precise control and high-energy concentration to achieve superior weld quality.
Schematic diagram of welding structure
Welding Method and Parameters
The welding procedure involved using the laser welding head to make a circumferential weld around the predetermined position on the stainless steel tube. The CW (Continuous Wave) mode welding was chosen for its ability to maintain a constant and consistent energy delivery, crucial for creating reliable and strong joints.
To protect the welding process from atmospheric contamination, pure Argon (Ar) gas was utilized as the shielding gas in the paraxial configuration. The Ar gas provides an inert atmosphere, preventing oxidation and minimizing the potential for defects during the welding process.
Conclusion of the Test
The results of the stainless steel pipe seal welding test using the diode laser welding machine were highly successful. The process demonstrated remarkable stability, ensuring uniform and controlled energy delivery throughout the weld.
The surface of the weld seam was observed to be smooth and flat, reflecting the excellent quality and precision achieved through the laser welding process. Moreover, the absence of defects such as cracks and pores attests to the efficiency of the welding method and the effectiveness of the Ar gas protection.
The successful test indicates that the diode laser welding machine is an ideal choice for welding thin-walled stainless steel tubes, where precision and leak-proof joints are essential. The results provide confidence in the use of this welding technique for various applications in industries such as automotive, aerospace, and medical, where high-quality and reliable welding is critical.
Conclusion
The test of seal welding on a stainless steel pipe using a diode laser welding machine demonstrated the advantages of precision and reliability in this welding process. The use of CW mode welding and pure Ar gas protection ensured stable and controlled welding, resulting in smooth and flawless weld seams. This test showcases the potential of diode laser welding machines in achieving leak-proof and robust joints for various applications, further establishing their significance in modern manufacturing processes.