Aiming at the problem of process monitoring of chip generating in automatic machining, chip shape recognition using radbas neural network was studied. Area ratio feature, Euler number feature and disperse degree feature etc. Geometry features of chip shape image were put forward and those features were as inputting vector of neural network. Radbas neural network was adopted and training the network using RLS. On the basis of experiment the calculating program was developed and it has excellent real time pro...