I am writing several speeds and feeds calculators at

http://www.algebra.com/algebra/homework/Metalworking /

I want to write a calculator to figure out the best speeds and feeds
given machine limitations (RPM and HP).

What I ran into is lack of quality references as to what feeds and speeds are acceptable. Some books (like _Machining Fundamentals_) or websites list pretty lame tables such as "recommended feed per tooth", without taking cutter diameter into account.

So, would anyone suggest a website (preferred) or book that gives good formulas for various combinations of cutter material, diameter, and material to be cut.

I did look and did not find anything suitable.

Also websites disagree pretty wildly on recommended SFM speeds.

Any good references will be greatly apreciated.

i

http://www.algebra.com/algebra/homework/Metalworking /

I want to write a calculator to figure out the best speeds and feeds

What I ran into is lack of quality references as to what feeds and speeds are acceptable. Some books (like _Machining Fundamentals_) or websites list pretty lame tables such as "recommended feed per tooth", without taking cutter diameter into account.

So, would anyone suggest a website (preferred) or book that gives good formulas for various combinations of cutter material, diameter, and material to be cut.

I did look and did not find anything suitable.

Also websites disagree pretty wildly on recommended SFM speeds.

Any good references will be greatly apreciated.

i