Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Heat Treatments

Process and examples. OL question 3

TermDefinition
Describe the process of Carburising It increases the carbon content of steel. This is done by putting steel into a furnace at 900 degrees with charcoal powder
How is steel Hardened It is heated to Cherry Red and Cooled rapidly in water
Why is Steel Tempered It is tempered after hardening to keep the hardness but remove the brittleness by increasing the toughness
How is steel tempered It is first polished It is then heated to a blue color and cooled slowly
Explain the term Quenching When metal is put into water or oil to cool it very fast to make it harder
Why is metal Annealed To improve its Ductility and Mallaebility and make it easier to bend and shape without tearing
How is steel Annealled It is heated to a Cherry Red color and cooled slow
List some 'Quenching Media' Water, Oil, Brine and Air
Why might steel be Case Hardened So its outside is very hard but the inside is softer and more ductile
How is Steel Case Hardened The outside of a round bar is heated to cherry red and then quenched. But the inside is not changed as it is not let heat up to the same red color and is kept cool
What could be done to remove work hardening effects Anneal the metal
What heat treatment is carried out on the tip of a screw driver or chiesl It is hardened and tempered
How is the tip (Cutting edge) of a chisel, dot punch or screwdriver heat treated They would be hardened by heating to cherry red and then cooled fast in water to make them hard. They would be then tempered by polishing them, then heating them to a purple color and then cooled slowly.
What heat treatment is carried out on the head of a Chisel or dot punch. (The part hit with the hammer) It is annealled
Why is the head of a Chiesl or dot punch annealled Because it becomes very hard (work-hardened) and brittle when it is hit with a hammer and little chips can break off.
Describe how the head of a Chisel or dot punch may be heat treated. It is Annealed by heating it to cherry red and then cooled slowly.
Created by: Engineeringmcs
Popular Engineering sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards