Jump to content
Mechanical Engineering
Sign in to follow this  
  • entries
    32
  • comments
    0
  • views
    1,986

What do you understand by a free-cutting steel?

Sign in to follow this  
admin

173 views

What do you understand by a free-cutting steel? What elements are usually added to make a steel free cutting, and how they make the steel free. cutting?

 

A free-cutting steel is one in which an element like lead or sulphur is deliberately added to promote rapid machining

When sulphur is added to steel, it forms a brittle constituent with manganese, known as manganese sulphide, which being brittle, allows chip cracks to propagate and breaks chips into easily handled lengths.

The lead does not chemically combine with the other elements. It gets distributed throughout the mass as minute droplets, and thus chip cracks are propagated easily and the chips come out in easily handled lengths.

Sign in to follow this  


0 Comments


Recommended Comments

There are no comments to display.

Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Join Mechanical Engineering network

    Join us (login) to get full access : Please sign up to connect and participate.






×
×
  • Create New...