CSWIP Study Material Hub

KNOW YOUR ELECTRODE:
Choose the right electrode and get the best weld.

Shout out to my newest followers! Excited to have you onboard! Khalid Ali Khan, Sahil Khan, Furqan Afzal, Muhammad Ilyas Khan, Mohsin Bhai, Mohammad Rizwan, Abid Malik, Rao Abdul Hameed, Syed Younus, Malik Bilal Mustafa Hunjra, Abbasi Saad, Anjum Chishti, Naveed Mughal, Muhammad Raza, Naeem Saqib, Sajjad Maqsood, Muhammad Amir Aziz, Abdul Qadir Solangi, Ishfaque Ahmed, Jalal Syed, Qaisar Khan, Samina Saeed, Muhammad Jibbran Jibbran, Sahil Jutt Prince Jutt, Afshan Najam, Adnan Khan, Qamber Abbas, Mohammad Akbar Gujrani, آصف على, Muhammad Jamil, Amir Raza, Tariq Masud, Muhammad Latif Khan, Irfan Hameed, Asghar Ali, Muhammad Mustafa, Faqeer Allahditto, Amjad Ali Joyo, Kabeer Ahmad Chito, Malikjamroz Khan, Muhammad Farhan Qazi, Waqas Mughal, Peer MAkdoom Qamer Raza, Mutber Khan, Pir Bux Dayo, Shahrukh Y ZAi, Sajidameer Khan, Khalid Nadeem, Zawar Syed Tahir Kazmi, Zafar Iqbal

How much excessive weld?

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Which one do you use most — MIG, TIG, or Plasma? 👇

🟦 Welding defects in root side related to fusion:

1️⃣ Lack of root pe*******on or incomplete pe*******on:
The weld metal fails to fill the root, leaving both root faces still visible and creating an unfused gap at the very bottom. Usually both edges are visible.

2️⃣ Lack of root fusion:
Incomplete (or lack of) root fusion means that while the weld may have penetrated to the correct depth, but failed to properly melt and bond both sides, usually one edge is visible.

🔴 Root Cause

🔷 Low heat input
🔷 MMA electrode too large (Low current density)
🔷 Large root face
🔷 Small root gap
🔷 Mis alignment at root

A visual guide to what we don't want to see on the job

Having a handy chart like this is great, but knowing why they happen is where the real skill comes in. Pick one defect from this picture and tell us: What’s the number one root cause behind it? (Inadequate gas shield? Wrong travel speed? Bad current?)

Let’s see who knows their welding metallurgy and inspection standards best! Drop your knowledge in the comments!