BuyFindarrow_forward

Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695

Solutions

Chapter
Section
BuyFindarrow_forward

Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695
Textbook Problem
31 views

Why is uniformly scattered porosity hard to detect in a weld?

To determine

The reason of difficulty in detection of uniformly scattered porosity.

Explanation

The flux used in the welding process is prone to picking up moisture present in the surrounding atmosphere. It is advised that the electrodes should be placed and stored in the dry and moisture free area under adequate temperature conditions. The flux material helps to clean the surface before the joining process by removing or reducing the oxides formed on the surface. Flux must help in removing the oxides forming on the surface. The oxides may form due to heating the parts involved in joining.

Due to very high temperatures involved in the welding process, the moisture present in the atmospheric air breaks down in hydrogen and oxygen molecules. The hydrogen may get absorbed by the molten metal where it can cause cracking after the welding process completes. The oxygen so obtained may also be absorbed by the molten metal and becomes the cause of forms of oxides in the metal.

  

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Engineering Solutions

Find more solutions based on key concepts

Show solutions add

What element is in stainless steel that makes it corrosion resistant?

Precision Machining Technology (MindTap Course List)

Calculate the moment created by the forces shown in the accompanying figure about point O.

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

What options are available to help you prepare for a certification exam? (572)

Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)

Use an elastic analysis and determine the maximum load in the weld (in kips per inch of length).

Steel Design (Activate Learning with these NEW titles from Engineering!)

Describe three systems development tools and three development methods.

Systems Analysis and Design (Shelly Cashman Series) (MindTap Course List)