Fundamental of Welding Science and Technology | EveryEng

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Self-paced Beginner

Fundamental of Welding Science and Technology

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25 enrolled

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1285 min

Anytime

English

1082 views

Team EveryEngMechanical Engineering

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Foundational Learning
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Volume pricing for groups of 5+

Why enroll

Participants join the Fundamentals of Welding Science and Technology course to build a strong foundation in welding principles and gain practical, industry-relevant skills. It helps them understand welding processes, avoid common defects, and improve the quality and reliability of welded structures. The course also enhances their ability to select the right materials and techniques for real-world applications. Additionally, learners benefit from increased career opportunities in manufacturing, construction, and engineering sectors.

Your instructor

Team EveryEng

Engineer

Mechanical Engineering

22+ yrs experience·India

Is this course for you?

You should take this if

You work in Aerospace or Automotive
You're a Mechanical Engineering / Production Engineering professional
You prefer self-paced learning you can revisit

You should skip if

You need a different specialisation outside Mechanical Engineering
You need live interaction with an instructor

Course details

This course provides a comprehensive introduction to the essential principles of welding science and technology, designed for beginners as well as working professionals. It covers the fundamentals of various welding processes and the underlying metallurgical concepts that influence weld quality and performance. Participants will gain a clear understanding of heat transfer mechanisms and thermal effects that occur during welding operations. The course also focuses on identifying common welding defects and implementing effective prevention techniques to ensure strong and reliable joints.Learners will explore how to select suitable welding materials and processes based on specific industrial applications and requirements. In addition, the course emphasizes proper weld joint design and preparation methods to achieve optimal results. Safety is a key component, with detailed insights into welding hazards, protective measures, and industry best practices. By the end of the course, participants will be equipped with practical knowledge and skills to perform and evaluate welding operations efficiently, making them valuable assets in manufacturing, construction, and engineering industries.

Source: NPTEL - IIT Guwahati
Prof. Pankaj Biswas, Dept. of Mechanical Engineering, IIT Guwahati

Course suitable for

Key topics covered

Understand the fundamental principles of welding processes and metallurgy
Analyze heat transfer and thermal effects during welding
Identify and prevent common welding defects
Select appropriate welding materials and processes for specific applications
Design and prepare weld joints for optimal results
Understand safety protocols and health hazards associated with welding

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

25 lectures21 hr 25 min

Fundamental of Welding Science and Technology
3 min
Introduction of welding
36 min
Classification of welding and joints
49 min
Parts of weld joint
49 min
Welding Symbol
71 min
Welding power source - 1
49 min
Welding power source 2
55 min
Welding Power sources characteristics-1
61 min
Welding Power sources characteristics-2
59 min
Physics of welding-1
53 min
Physics of welding - 2
57 min
Physics of welding-3
43 min
Physics of welding-4 (Arc Stability and Arc Blow)
55 min
Physics of welding-5 (Metal Transfer-1 )
50 min
Physics of welding-6 (Metal Transfer-2 )
52 min
Physics of welding-7 (Metal Transfer-3 )
47 min
Physics of welding-8 (Metal Transfer-4 )
55 min
Physics of welding-9 (Metal Transfer-5 )
58 min
Physics of welding-10 ( Metalting Efficiency )
52 min
Oxy-Fuel Gas Welding
49 min
Shielded Metal Arc Welding
48 min
Gas Tungsten Arc Welding
54 min
Gas Metal Arc Welding
62 min
Submerged Arc Welding
62 min
Welding Defects and Inspection
56 min

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Questions and Answers

Q: You're setting SMAW parameters and Google leads you to: "how to calculate welding heat input kJ/mm SMAW". The procedure calls for 120 A, 22 V, travel speed 5 mm/s, arc efficiency 0.75. What heat input should you record on the WPS?

A: The correct choice lands at the heat actually delivered to the joint using the efficiency-corrected power over distance. A drops the arc efficiency term entirely. C uses electrical power but forgets that arc efficiency is never unity. D mixes seconds and minutes, shrinking the number by a factor of 60.

Q: You're reviewing a GA weld detail and searching: "interpret ISO 2553 weld symbol arrow side other side". The symbol shows a fillet triangle on the arrow side, size 6, with a dashed reference line. What does this require on the part?

A: The correct reading applies the weld to the opposite side when the dashed line carries the symbol. A ignores the dashed-line convention. C assumes symmetry that isn't shown. D confuses dashed reference lines with intermittent notation.

Q: During GMAW you notice excessive spatter after increasing voltage; you're searching "why does higher voltage increase spatter GMAW". All else held constant, what's the correct immediate adjustment?

A: The right move rebalances current and voltage to return to the intended transfer regime. B affects gas coverage, not arc stability, and risks porosity. C raises resistive heating and can worsen spatter. D breaks the qualified process envelope for solid wire steel.

Q: A weld shows surface cracking hours after completion; you're googling "delayed hydrogen cracking weld symptoms". The joint was high-strength steel, low ambient temperature, and no preheat. Root cause?

A: This choice explains the delayed timing, material strength, and lack of preheat together. A and D occur during solidification, not hours later. B needs rolled plate anisotropy and restraint signatures that weren't observed.