Morrow Welding makes industrial welding equipment. We know perfect TIG welding needs two things. First, you need good machinery. Second, you need the right way to use it. This guide gives key TIG welding safety and technique tips. It also shows our top TIG welding solutions.
18 Key TIG Welding Steps Safety and precision matter a lot in TIG welding. Follow these TIG welding steps to get good results and keep the operator safe.
I. Pre-Operation Checks
1.Designated Operation: Only trained people should turn on the TIG welder.
2.Equipment Check: Look over all TIG welding tools before you start.
3.Power & Utilities: Check the TIG welding power source is grounded. Make sure moving parts have oil and work right. Check argon gas and water flow are clear. Tell someone right away if there’s a water leak to fix it.
4.Welding Torch & Grounding: Check the TIG welding torch is in good shape. Make sure the ground wire is tight.
5.System Check: Make sure the high-frequency arc for TIG welding works. Check all cable connections are secure. For automatic TIG welders, check the adjustment parts and wire feeder.
6.Polarity Selection: Pick the right polarity for TIG welding based on the metal. Use DCEN for most metals. Use DCEP or AC for aluminum TIG welding.
7.Workpiece Preparation: Check the welding groove is ready for TIG welding. The surface must have no oil or rust. Clean 200mm of rust off both sides of the weld.
8.Jigs & Preheating: If you use jigs for TIG welding, check they’re reliable. For preheating, check the preheating tools and temperature devices.
II. Safety & Health Rules
9. Control Accessibility: Keep the TIG welder’s control button near the arc so you can turn it off fast.
10. HF Arc Check: Check often for leaks when using high-frequency arc in TIG welding.
11. Maintenance Protocol: If the TIG welding equipment breaks, turn off power. Let a technician fix it. Operators must not try to repair it.
12. Personal Protection: Don’t expose skin near the TIG welding arc. Don’t smoke or eat near it. This stops you breathing ozone and fumes.
13. Tungsten Electrode Grinding: Wear a mask and gloves to grind thoriated tungsten electrodes for TIG welding. Follow grinder rules. Use ceriated tungsten—it has less radioactivity. The grinder needs a dust extraction system.
14. Respiratory Protection & Limits: TIG welding operators should wear static-proof dust masks. Don’t stay near high-frequency current too long. Don’t do TIG welding for more than 6 hours straight.
15. Ventilation: The TIG welding area must have good air flow. Always use local exhaust fans. Stop TIG welding if ventilation stops working.
16. Gas Cylinder Safety: Don’t hit argon cylinders for TIG welding. Store them upright with a stand. Keep them over 3 meters from open flames.
III. Special TIG Welding Steps
17. Confined Space Welding: When TIG welding inside containers, use a special fume-proof mask. Have a helper outside to watch and help.
18. Tungsten Electrode Storage: Store thoriated tungsten rods for TIG welding in a lead box. This stops harmful radiation from many rods.
Get Great TIG Welding Results with Morrow’s TIG SeriesFollowing these TIG welding steps is key for good welding. Use this knowledge with the right TIG welding equipment to do your best. Morrow’s advanced TIG welders are made for precision, stability, and reliability—things modern industry needs for TIG welding.
Focus on the WSM7-400 Water-cooling Pulse TIG Welder


Our WSM7-400 is a new, fully digital TIG welder. It has all standard TIG welding functions plus advanced pulse TIG welding. Its water-cooling system gives steady performance for hard TIG welding jobs.
Main Features:
- HF Pulse arc ignition and DSP digital control for TIG welding (30 memory channels).
- Automatic safety for overcurrent, overheating, and wrong voltage in TIG welding.
- Works for DC TIG welding, Pulse TIG welding, and MMA welding (welds stainless steel, alloy steel, etc.).
- Easy LCD menu for TIG welding with fast-select keys.
- Exact digital control for TIG welding current and up/down slope.
- Very stable arc for low-current TIG welding (starts at 5A).
A Flexible Choice: The WSM7-D SeriesThe WSM7-D Series offers full digital pulse TIG welding power in different sizes. It fits various TIG welding tasks.
Main Technical Details:
| Detail | WSM7-315 | WSM7-400 | WSM7-500 |
| Power Supply | 3-phase 380V/415V 50Hz | Same | Same |
| Rated Input Power | 12.2 KVA | 17.3 KVA | 23.7 KVA |
| Rated TIG Welding Current | 315A | 400A | 500A |
| Duty Cycle | 250A @ 100% | 315A @ 100% | 400A @ 100% |
| TIG Welding Current Range | 20-315A | 20-400A | 20-500A |
| Weight | 45 Kg | 55 Kg | 65 Kg |
Why Pick Morrow Welding for TIG Welding?At Morrow Welding, we mix years of skill with new tech. Our TIG welding products (like the WSM7 series) work well in tough jobs—steel, shipbuilding, oil, and metal work. We give global clients dependable, effective, safe TIG welding solutions.
See full TIG welding details on our website: www.morrowwelding.com
About Morrow Welding:Sichuan Morrow Welding Industry Development Co., Ltd. is a top Chinese maker of welding power sources. Our TIG welding machines sell in Europe, America, Asia, and the Middle East. We work to improve TIG welding technology and help industries everywhere.