On Aug 20, 9:33*am, Robatoy wrote:
On Aug 19, 10:25*pm, RicodJour wrote:

You're doing a partial body diagram, and being mighty partial about
it. *Yes, the heavier blade has a greater rotational inertial force,
but a heavier-as-in-wider blade also is cutting more wood, so it has
more drag. *There's no simple answer.

No there isn't a simple answer, but everything else being equal, the
increased mass of a blade assists in the cutting action, like a bigger
hammer. Surely nobody is interested in too much geek detail, hence the
Readers Digest version of my statement. Not only is a more massive
rotational force advantage provable on a physical level, it is well
supported by personal observation and what industrial cutter heads
show to be most effective in their respective environments.
A set of solid 'stiffeners' on a table saw not only 'stiffens' the
blade, the added mass contributes to a better cut as well.

Apples and oranges, mon ferret. The stiffeners add rotational mass,
but no additional cutting resistance is added. Not the case with a
wider blade.

R