Prepare Documentation & Components
Before starting the orbital welding process, gather and review all necessary documentation, such as heat numbers, drawings, and build instructions, to ensure everything is accurate for quality assurance.
After confirming the documentation, select the appropriate weld head based on the project’s requirements. Set up the welding system, ensuring the equipment is ready, including all power settings and safety checks, before proceeding with the welding process.
Set Up the Fixture and Clamp Joints
Position the first joint into the fixture block and clamp it securely in place. Carefully align the second joint in the same fixture and clamp it down as well to ensure both parts are aligned for the orbital weld. Proper alignment is crucial in orbital welding to ensure that the weld head moves smoothly along the joint, producing a precise, high-quality weld.
Install Purge System and Weld Head
Place the restrictor on the outlet side of the tubing, then connect the purge gas, typically argon, to the inlet side and turn it on to prepare the weld area. After that, place the M200 weld head onto the fixture block, ground it, and latch it securely in position. This setup helps maintain a clean environment inside the tube, preventing oxidation during the welding process.
Execute the Orbital Weld
Once everything is set up, the welder will initiate a pre-purge cycle for 10 seconds to clean the internal tubing. A pulse purge follows for another 10 seconds to ensure no contaminants are present. The orbital welding process is then automatically executed by the M200, producing a clean, consistent weld.
Finish, Clean, and Inspect
After the weld is complete, remove the purge system and unclamp the assembly from the fixture. Use a brush to clean the welded area and remove any residue. The assembly is then inspected, subjected to helium leak testing, and passed on for final inspection, cleaning, and packaging before being sent for use or shipment.
