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Table 4 The models error compared to the experimental results

From: Modelling of cutting force and surface roughness of ultrasonic-assisted drilling using artificial neural network

Model output

Models of one output

Model of the three outputs

FZ mean (N)

Fz max (N)

Ra (\({\varvec{\mu}}{\varvec{m}})\)

FZ mean (N)

Fz max (N)

Ra (\({\varvec{\mu}}{\varvec{m}})\)

Max error

15

7.9

0.5

12.7

12.9

8.1

Min error

13

7.8

1

10

12.7

2.8