Tumble finishing

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/tumble-finishing

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. What is the process classification?Mass finishing technique for surface refinement
2. What is the underlying principle?Controlled abrasion via relative motion between parts and abrasive media
3. How does tumble finishing work?The parts keep moving inside the container, bumping into each other and the abrasive media, which slowly wears away rough spots until the surface is smooth.
4. Why do people use tumble finishing instead of polishing by hand?It can finish many parts at once, saving time and money, and it gives a consistent, shiny look that helps parts work better and last longer.

Mass finishing: A manufacturing process that finishes multiple parts simultaneously in a bulk medium.
Tribology: The science and engineering of interacting surfaces in relative motion, including friction, wear, and lubrication.
Burr: A rough or sharp edge or ridge left on a piece of material after cutting or breaking.