Distortion, Residual Stress, And Fixturing Laser welding’s concentrated heat input significantly reduces distortion compared to MIG or TIG welding, but stainless steel’s thermal expansion rate (~17 µm/m·℃) is still almost 1.5× that of carbon steel. This means even small temperature changes can cause measurable movement. Residual stresses form when the weld metal and surrounding base metal […]

Heat Input, Cooling Rate, And Metallurgical Control Laser welding is inherently a low heat input, high cooling rate process, which is one reason it’s so effective for stainless steel. But “low heat” is not automatically “good” — the wrong heat input or cooling profile can lead to incomplete fusion, excessive ferrite, or microstructural defects that […]

Laser Welding Fundamentals Understanding the fundamentals of laser welding is essential to produce strong, consistent welds in stainless steel. The process relies on tightly controlled parameters that determine penetration depth, weld width, and heat-affected zone size. The following concepts define how a laser interacts with stainless steel and how different settings influence results. Conduction VS. […]

Why Laser-Weld Stainless Steel? Laser welding offers several advantages that make it one of the most effective methods for joining stainless steel. Its unique combination of speed, precision, and minimal thermal impact delivers results that are difficult to achieve with conventional welding methods. Low distortion and minimal heat tint: Stainless steel is sensitive to heat, […]

Laser welding gun maintenance The laser welding gun is a component that directly performs welding work. The quality of welding has a great relationship with the use of the welding gun components. Therefore, before each use of the machine, the laser welding joint needs to be inspected to see if the components are contaminated or […]

Operating environment requirements When using a laser welding machine, it is necessary to create a good operating environment for the machine. This is the prerequisite for the long-term stable use of the machine. The following are the requirements for the machine’s operating environment: The laser welding machine should be installed in a level and stable […]

Electrical System Check Circuit Breakers: Ensure that the main power circuit breaker and individual power supply breakers, including the emergency stop switch, respond promptly and effectively. Verify Power Connections: Confirm that the laser machine’s power connections are correct. Ensure Proper Capacity: Verify that the main and sub-circuit breakers (for the main unit, laser machine, air […]

Gas System The gas system provides protective gases, typically high-purity argon or nitrogen, crucial for quality welds. Maintenance Procedures Check Gas Handling Components: Inspect all gas handling components, such as pressure regulators and solenoid valves, for any damage or gas leaks. Promptly address any issues to ensure safe and effective operation. Water Chiller The chiller […]

Shielding Gas in Handheld Laser Welding In the process of laser welding, the use of protective gas is crucial as it creates a protective atmosphere in the welding area, preventing the molten pool and weld from reacting with oxygen, nitrogen, and other elements in the surrounding environment. This helps reduce oxidation and contamination, ensuring welding […]

Transportation Precautions 1. Proper Packaging: Before shipping, ensure that the handheld laser welding machine is adequately packed with wooden frames and foam protection to prevent damage or collision during transit. 2. Moisture Protection: Take appropriate measures to prevent moisture or water damage during transportation, especially for sea transportation. 3. Secure on the Ship: Arrange the […]