Welding joins metal pieces together using heat, pressure, or both. It's the backbone of construction, manufacturing, automotive repair, and countless DIY projects.
Why learn welding?
Save thousands on repairs and fabrication
Build custom projects (furniture, art, tools)
High-demand skilled trade ($45K-$80K+ average salary)
Satisfaction of creating something with your hands
Types of Welding: Which One Should You Learn First?
1. MIG Welding (Gas Metal Arc Welding)
Best for: Beginners, automotive, fabrication, general repairs
Pros:
Easiest to learn
Fast welding speed
Clean welds with minimal cleanup
Works on thin to medium metal
Cons:
Requires shielding gas
Not ideal for thick metal
Equipment costs $300-$800
Our recommendation: Start here. MIG is forgiving and builds fundamentals fast.
2. TIG Welding (Gas Tungsten Arc Welding)
Best for: Precision work, aluminum, stainless steel, artwork
Pros:
Highest quality, most beautiful welds
Works on virtually any metal
No spatter or cleanup
Full control over heat
Cons:
Steep learning curve
Slow process
Two-handed operation
Equipment costs $1,000-$2,500
3. Stick Welding (Shielded Metal Arc Welding)
Best for: Heavy construction, farm equipment, outdoor welding
Pros:
Works in any weather
No gas required
Handles thick metal
Equipment costs $200-$500
Cons:
Lots of spatter and cleanup
Harder to learn than MIG
Not great for thin metal
Essential Equipment for Beginners
Minimum Starter Kit ($500-$800)
Item
Purpose
Estimated Cost
MIG welder (140-180 amp)
Core equipment
$300-$500
Auto-darkening helmet
Eye protection
$50-$150
Welding gloves
Hand protection
$15-$30
Leather jacket/apron
Body protection
$40-$80
Angle grinder
Cleanup welds
$40-$80
Clamps
Hold pieces together
$20-$40
Metal workbench
Stable workspace
$100-$200 (or DIY)
Pro tip: Buy a quality helmet. Cheap ones flicker or don't darken properly — dangerous for your eyes.
Safety First: Non-Negotiable Rules
Personal Protective Equipment (PPE)
Workspace Safety
Ventilation is critical — welding fumes are toxic
Keep a fire extinguisher within 10 feet
Remove flammables from welding area
Ground your welder properly
Have a helper nearby for heavy pieces
Setting Up Your First Weld
Step 1: Prepare Your Metal
Clean the joint with a wire brush or grinder
Remove rust, paint, oil, or mill scale
Clamp pieces securely — movement ruins welds
Leave a small gap (1/16" to 1/8") for penetration
Step 2: Set Your Machine
MIG welding settings (general guidelines):
Metal Thickness
Wire Speed
Voltage
1/16" (thin)
100-150 IPM
14-16V
1/8" (medium)
200-250 IPM
17-19V
1/4" (thick)
300-400 IPM
20-24V
Start conservative. Too hot burns through. Too cold doesn't penetrate.
Step 3: Make Your First Bead
Lower helmet
Pull trigger to start arc
Hold steady for 2-3 seconds to establish puddle
Move at consistent speed (roughly 5-10 inches per minute)
Watch the puddle, not the arc
Keep the puddle 1/4" wider than the joint
Common Beginner Mistakes
1. Burn-Through
Problem: Hole melted through the metal Cause: Too much heat or moving too slow Fix: Lower voltage, increase travel speed
2. Lack of Penetration
Problem: Weld sits on top, doesn't fuse to base metal Cause: Too cold, wrong angle, dirty metal Fix: Increase heat, clean metal thoroughly, slow down
3. Porosity (Holes in Weld)
Problem: Small bubbles or holes in finished weld Cause: Moisture, rust, oil, or inadequate gas coverage Fix: Clean metal completely, check gas flow (20-25 CFH)