Tooling Angles of a Simple Cutting Blade

Here is a 3D animation on the tooling angles of a simple cutting blade.
There are many more available at:
http://learncnc.org/

This video was made for the LearnCNC project done at the University of British Columbia. It is one of many videos and animations embedded into a 3D interactive learning tool on the basics of CNC technology and tooling. The educational video game is available for free download from http://learncnc.org/

Category:

Education

Tags:

• drill bit
• router bit
• helical bit
• alpha
• beta
• gamma
• hook angle
• rake angle
• wedge angle
• knife
• angle
• clearance angle
• relief angle
• tooling angles
• cutting
• blade
• angles
• CNC
• learn
• education
• tooling
• 3D
• interactive
• video game

[dixter20]

Hey setroos,

There seems to be a bit of confusion in the industry regarding cutting angles and I think a big reason for that is the difference between North American and European terminology. Europe, like you said, uses alpha and gamma opposite from NA. Even the words to describe the greek letters (i.e. "rake" vs. "cutting" vs. "knife") aren't uniform.

I wish these terms would just be standardized... but unfortunately they are not.

[dixter20]

Yeah, two ways to say the same thing. I think there is a bit of a debate on what is the proper name for all the angles. The content of this video is based off tooling textbooks so should be pretty accurate.

[kylep2]

Always heard it called a Cutting Edge and not a Knife Edge, but good video.

[dixter20]

@kylep2 Yeah there's always some discrepancy in what the official names of the angles should be. Oftentimes the europeans choose slightly different names. But either way, they're all synonyms.

Glad you enjoyed the video kylep2. Check out the 3D learning environment at learncnc.org if you want more.

[setroos]

rake angle it's : gamma no alfa