10 questions about welding

10 questions about welding

 10 common questions about welding with emojis to make them more engaging! 🔥🔧

1️⃣ What is welding? 🤔

Welding is a process that joins metals or plastics by melting them together, often with a filler material, to form a strong bond when cooled.

2️⃣ What are the main types of welding? ⚡

• MIG (Metal Inert Gas) 🔧 – Easy for beginners, uses a wire feed.

• TIG (Tungsten Inert Gas) ✨ – Precise, great for thin metals.

• Stick (SMAW) ⚡ – Works outdoors, no gas needed.

• Flux-Cored (FCAW) 🌪️ – Like MIG but with a flux core.

3️⃣ What safety gear do I need? 🛡️

• Welding helmet with auto-darkening lens 🎭

• Fire-resistant gloves & jacket 🧤🧥

• Safety glasses 👓

• Respirator (for fumes) 😷

4️⃣ Why does welding create sparks? 🔥

Sparks fly because of molten metal droplets, and spatter happens when filler metal scatters due to heat and gas reactions.

5️⃣ Which metals can I weld? ⚙️

• Steel 🏗️

• Stainless Steel ✨

• Aluminum 🛩️

• Cast Iron (with care!) 🔨

6️⃣ What causes welding defects? ❌

• Porosity (bubbles) = Contamination or bad gas coverage 💨

• Cracks = Wrong filler metal or fast cooling ❄️

7️⃣ How do I stop thin metal from warping? 📉

• Use low heat 🔥

• Weld in short sections ⏱️

• Clamp it down 🔗

8️⃣ AC vs. DC welding—what’s the difference? ⚡

• DC (Smooth & steady) – Best for most jobs ✅

• AC (Switches direction) – Needed for aluminum 🔄

9️⃣ Can robots weld? 🤖

Yes! Factories use robotic welders for cars, ships, and more—faster and super precise! 🚗⚡

🔟 How do I pick the right welding rod/wire? 🧐

Match it to your metal! Example:

• Steel: ER70S-6 (MIG) or E6013 (Stick) 🔩

• Aluminum: ER4043 (TIG/MIG) ✈️