Welding

High school (ages 12+)
Making & Design

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/welding

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How tall is Welding?Heat-affected zone (HAZ) properties and potential for defects
2. What is the primary joining principle?Coalescence of materials, usually metals, through melting and solidification
3. What is the key energy sources utilized?Electric arc, gas combustion, laser, electron beam, friction, ultrasonic waves

Fusion: The process of melting and intermingling materials at an atomic level to create a permanent bond.
Heat-Affected Zone (HAZ): The area of base metal adjacent to a weld that has undergone microstructural changes due to heat.
Filler Material: An alloy added to the weld pool to enhance the properties or fill the gap between base metals.
Shielding Gas: A gas used in some welding processes to protect the molten weld pool from atmospheric contamination.