TIG Welding
TIG (Tungsten Inert Gas) welding, also known as GTAW (Gas Tungsten Arc Welding), is a precise type of welding that creates high-quality, clean welds. It's like using a very precise pen instead of a broad brush when joining metals together. Welders use TIG welding when they need very neat, strong connections, especially on materials like stainless steel or aluminum. This method is commonly used in industries that need perfect-looking welds, such as aerospace, automotive repair, or making custom motorcycles. While other welding methods like MIG or stick welding are faster, TIG welding is chosen when appearance and precision matter most.
Examples in Resumes
Performed TIG welding on aluminum components for aerospace applications
Certified TIG and GTAW welder with 5 years of experience in stainless steel fabrication
Specialized in precision TIG welding for custom motorcycle frames and components
Typical job title: "TIG Welders"
Also try searching for:
Where to Find TIG Welders
Online Communities
Job Boards
Professional Networks
Example Interview Questions
Senior Level Questions
Q: How would you approach welding extremely thin aluminum sheets?
Expected Answer: A senior welder should discuss preparation techniques, proper amperage settings, importance of cleanliness, and demonstrate knowledge of pulse welding techniques. They should also mention experience with preventing warpage and maintaining proper heat control.
Q: Explain how you would train junior welders in TIG techniques
Expected Answer: Should discuss teaching proper torch angle, filler rod techniques, importance of practice on different materials, and common mistakes to avoid. Should emphasize safety procedures and quality control methods.
Mid Level Questions
Q: What are the key differences in TIG welding different metals like steel vs aluminum?
Expected Answer: Should explain basic differences in preparation, gas flow rates, amperage settings, and cleaning requirements. Should mention different filler metals needed and common challenges with each material.
Q: How do you ensure proper penetration in a TIG weld?
Expected Answer: Should discuss visual indicators, amperage control, travel speed, and proper joint preparation. Should mention ways to check weld quality and common testing methods.
Junior Level Questions
Q: What safety equipment is required for TIG welding?
Expected Answer: Should list basic safety gear including auto-darkening helmet, leather gloves, flame-resistant clothing, proper ventilation, and explain the importance of each item.
Q: Can you explain the basic setup of a TIG welding machine?
Expected Answer: Should be able to describe the basic components: power source, torch, foot pedal, gas cylinder, and explain the purpose of each part in simple terms.
Experience Level Indicators
Junior (0-2 years)
- Basic TIG welding on mild steel
- Understanding of safety procedures
- Basic joint preparation
- Reading simple welding blueprints
Mid (2-5 years)
- Welding various metals including aluminum
- Complex joint configurations
- Quality control and inspection
- Multiple position welding
Senior (5+ years)
- Advanced welding techniques
- Training and supervision
- Complex project management
- Specialty material expertise
Red Flags to Watch For
- No certification or formal training in TIG welding
- Limited knowledge of different metals and their properties
- Poor understanding of safety protocols
- No experience with quality control or inspection
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