ตารางปรับค่า MIG/MAG ใช้ได้กับทุกเครื่อง

Summary

In this video, the presenter explains a practical guide to adjusting welding machine settings, focusing on voltage, speed, and gas adjustments. The tutorial walks viewers through the process of selecting the correct settings for various material thicknesses, emphasizing a methodical approach for DIY welders. Key steps include determining material thickness, choosing the right wire, adjusting voltage and speed for optimal performance, and fine-tuning gas flow. The video also offers troubleshooting tips and highlights essential techniques for achieving quality welds, making it a valuable resource for beginners and experienced welders alike.

Takeaways

• 😀 Understanding the voltage adjustment process is key for optimal welding machine performance.
• 😀 For welding on materials with thicknesses ranging from 1mm to 3mm, a basic voltage of 17V is recommended as a starting point.
• 😀 For 1mm thick materials, increase the voltage by 2V for each additional millimeter (e.g., 18V for 2mm, 19V for 3mm).
• 😀 If the material is thicker than 3mm, you may need to increase the voltage to 2.5V or more for proper welding.
• 😀 The speed should be synchronized with the voltage to ensure smooth operation and good welds.
• 😀 Always consider the specific material being welded and its thickness when setting the voltage and speed.
• 😀 The correct choice of welding wire depends on both the material thickness and the power settings of the welding machine.
• 😀 Adjusting the welding gas flow rate to match the welding speed and voltage ensures good weld quality, with a typical range of 5-7 liters for general tasks.
• 😀 The use of a suitable welding wire size and type can ensure better results for specific welding tasks.
• 😀 For DIY projects, starting with a voltage of 17V and increasing it by 2V for each millimeter of material thickness is a practical guideline.
• 😀 Always check the material thickness and use an appropriate method to ensure proper welding without under- or over-adjusting the settings.

Q & A

What is the main focus of the video?

The video primarily focuses on how to adjust the settings of a welding machine, specifically the voltage and speed settings for different welding tasks.

Why is it important to adjust the voltage and speed when welding?

Adjusting the voltage and speed is crucial for ensuring the correct welding parameters for the material being used, resulting in a clean, strong weld and preventing damage to the material.

What is the recommended voltage for welding steel with a thickness of 1mm?

For a material with a thickness of 1mm, the recommended voltage is around 17 volts.

How does the voltage change when welding thicker materials?

As the material thickness increases, the required voltage increases. For example, for a 2mm material, the voltage should be about 18-19 volts, and for 3mm, it should be around 20-21 volts.

What factors influence the voltage setting besides material thickness?

Other factors influencing the voltage setting include the type of welding wire used, the material's properties, and the machine settings.

What is the role of the welding speed setting in the welding process?

The welding speed setting controls the movement of the welding electrode along the seam. It needs to be synchronized with the voltage to ensure smooth and effective welding.

How should the welding speed be adjusted?

The welding speed should be adjusted so that the arc produces a consistent, smooth sound, similar to the sound of bacon sizzling. This indicates the correct balance between the voltage and speed.

Why is it important to choose the right type of welding wire?

Choosing the right type of welding wire ensures that the material being welded is compatible with the wire, which affects the quality of the weld. The wire also needs to match the required current and voltage settings.

What should you do if the welding wire is not suitable for the material being welded?

If the welding wire is unsuitable, you should either adjust the machine settings or use a more appropriate wire for the material and job at hand.

What is the significance of adjusting the gas flow when welding?

Adjusting the gas flow is crucial to ensure the weld is protected from contamination by atmospheric gases. The flow rate should match the welding speed and voltage for optimal results.