Does angular acceleration on a spinning disk increase centrifugal force?

Answer 1

not immediately
alpha = ang acceleration = d omega/dt

F = m Ac = m v^2/R = m omega^2 R
where omega = angular velocity and v = tangential velocity (omega*R)
and m is any particle on the disk at radius R

v is velocity not acceleration
however over any finite time, acceleration changes velocity so only indirectly