Welding: Metallurgy and Methodology

In Welding: Metallurgy and Methodology, you'll learn ...

• Advanced aspects of welding procedure with a focus on specific metals and their microstructure
• Metallurgy as it relates to welding processes
• Common welding methods and their application
• Welding metals, electrodes, and filler rods

Overview

Preview a portion of this course before purchasing it.

Credit: 8 PDH

Length: 89 pages

Welding is the ubiquitous process of permanently joining materials together. Essentially every industry requires welding, either for fabrication or repair. It is hard to imagine modern society without the ability to assemble complex structures quickly and effectively from smaller sections of material or sub-assemblies or make repairs. A proper weld is the culmination of skilled labor, heat, pressure, and metallurgical conditions. The combination of these factors requires special welding procedures to ensure components perform satisfactorily in service.

Many excellent articles have been written on the various welding processes, types of welds, joint types, weld design, etc., but understanding the process and designing welding procedures that ensure a successful weld from a metallurgical perspective can be overlooked. From titanium to tool steel, this work provides specific insight into electrode selection, chemical compatibility, preheat temperatures, post-weld heat treatments, and even methods to repair difficult-to-weld materials.

This course provides you with more advanced aspects of welding procedure with a focus on specific metals and their microstructure. Additionally, valuable information on hard surfacing and welding repair is provided. Essentially, the engineer will have a better knowledge of metals and how to weld them.

This course is aimed specifically at civil, mechanical, structural, and process engineers, but facility managers, H & S professionals, environmentalists, energy auditors, and anyone who wants a more advanced understanding of welding principles will benefit.

Learning Objectives

Upon completion of this course, participants will be able to:

• Identify the microstructures present in carbon steels and stainless steels.
• Explain how variations in carbon content affect the weldability of steels.
• Determine the carbon equivalence and weldability of various steels.
• Describe postweld heat treatments and their effects on welded microstructures.
• Determine the appropriate weld preheat temperature for steels.
• Explain the martensite transformation temperature for steels and its importance.
• Compare welding and joining processes and their differences.
• Describe welding-relevant properties of commonly welded ferrous and nonferrous metals.
• Identify the types of cast irons and their respective microstructures.
• Interpret arc welding electrode designations.
• Describe welding procedure considerations for low-, medium-, and high-carbon steels and cast steels.
• Explain why cast iron is difficult to weld.
• Summarize the types of stainless steels and key aspects of their weldability.
• Describe welding considerations for nonferrous metals.
• Select and weld hard-surfacing materials.
• Identify appropriate tool and die materials and describe methods for welding them.
• Describe basic considerations for welding exotic steels.
• Explain techniques for welding difficult-to-weld metals.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 40 questions. PDH credits are not awarded until the course is completed and quiz is passed.