.035 Stainless Welding Wire Settings: A Comprehensive Guide
When it comes to welding stainless steel, having the right wire settings is crucial to achieve a strong and durable weld. In this article, we will explore the ideal settings for .035 stainless welding wire, including the recommended machine settings, techniques, and best practices.
Machine Settings
To get started, you'll need to set up your welding machine with the correct parameters. Here are the recommended settings for .035 stainless welding wire:
- Voltage: 18-22 volts
- Amps: 120-150 amps
- Wire Feed Speed: 120-150 inches per minute (ipm)
- Shielding Gas: Argon/CO2 mix (75% Ar, 25% CO2) or pure Argon
Techniques
To achieve a high-quality weld, it's essential to use the correct technique. Here are some tips to keep in mind:
- Push Angle: Hold the gun at a 10-15 degree push angle to prevent porosity and ensure good penetration.
- Travel Speed: Maintain a steady travel speed of 3-5 inches per second (ips) to prevent overheating and distortion.
- Electrode Stickout: Keep the electrode stickout between 1/4 and 1/2 inch to ensure consistent arc stability.
- Shielding Gas Coverage: Maintain a minimum of 6-8 inches of shielding gas coverage to prevent atmospheric contamination.
Best Practices
To ensure success with .035 stainless welding wire, follow these best practices:
- Cleanliness: Ensure the workpiece and surrounding area are clean and free of oil, grease, and moisture.
- Surface Preparation: Grind or brush the surface to remove any oxidation or debris.
- Welding Sequence: Weld in a sequence that prevents heat buildup and promotes even cooling.
- Interpass Temperature: Maintain an interpass temperature of 300-400°F (150-200°C) to prevent overheating.
Troubleshooting Common Issues
- Porosity: Caused by inadequate shielding gas coverage, porosity can be prevented by increasing the gas flow or adjusting the electrode stickout.
- Lack of Fusion: Caused by insufficient heat input, lack of fusion can be prevented by increasing the amps or voltage.
- Distortion: Caused by excessive heat input, distortion can be prevented by reducing the amps or voltage.
By following these guidelines and best practices, you'll be able to achieve high-quality welds with .035 stainless welding wire. Remember to always follow safety guidelines and take necessary precautions when working with welding equipment.
