Non-contact estimation of surface roughness in turning using computer vision and Artificial Neural Networks

Polishing is a highly skilled manufacturing process with a lot of constraints and interaction with environment. In general, the purpose of polishing is to get the uniform surface roughness distributed evenly throughout part’s surface. In order to reduce the polishing time and cope with the shortage of skilled workers, robotic polishing technology has been investigated. This paper studies about vision system to measure surface defects that have been characterized to some level of surface roughness. The surface defects data have learned using artificial neural networks to give a decision in order to move the actuator of arm robot. Force and rotation time have chosen as output parameters of artificial neural networks. Results shows that although there is a considerable change in both parameter values acquired from vision data compared to real data, it is still possible to obtain surface defects characterization using vision sensor to a certain limit of accuracy. The overall results of this research would encourage further developments in this area to achieve robust computer vision based surface measurement systems for industrial robotic, especially in polishing process.Keywords: polishing robot, vision sensor, surface defects, and artificial neural networks

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Color Computer Vision and Artificial Neural Networks for the Detection of Defects in Poultry Eggs

Artificial Intelligence for Biology and Agriculture ◽

10.1007/978-94-011-5048-4_8 ◽

1998 ◽

pp. 163-176 ◽

Cited By ~ 6

Author(s):

V. C. Patel ◽

R. W. Mcclendon ◽

J. W. Goodrum

Keyword(s):

Neural Networks ◽

Computer Vision ◽

Artificial Neural Networks ◽

Poultry Eggs ◽

Artificial Neural ◽

Color Computer ◽

Detection Of Defects

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Properties of the Surface Layer After Trochoidal Milling and Brushing: Experimental Study and Artificial Neural Network Simulation

Applied Sciences ◽

10.3390/app10010075 ◽

2019 ◽

Vol 10 (1) ◽

pp. 75

Author(s):

Monika Kulisz ◽

Ireneusz Zagórski ◽

Jakub Matuszak ◽

Mariusz Kłonica

Keyword(s):

Neural Networks ◽

Surface Roughness ◽

Artificial Neural Networks ◽

Cutting Speed ◽

Mg Alloy ◽

Polar Component ◽

Maximum Height ◽

Roughness Parameters ◽

Surface Geometry ◽

Artificial Neural

The aim of this study was to investigate the effect of milling and brushing cutting data settings on the surface geometry and energy parameters of two Mg alloy substrates: AZ91D and AZ31. In milling, the cutting speed and the trochoidal step were modified (vc = 400–1200 m/min and str = 5–30%) to investigate how they affect selected 2D (Rz, Rku, Rsk, RSm, Ra) and 3D (Sa, Sz, Sku, Ssk) roughness parameters. The brushing treatment was carried out at constant parameters: n = 5000 rev/min, vf = 300 mm/min, ap = 0.5 mm. The surface roughness of specimens was assessed with the Ra, Rz, and RSm parameters. The effects of the two treatments on the workpiece surface were analyzed comparatively. It was found that the roughness properties of the machined surface may be improved by the application of a carbide milling cutter and ceramic brush. The use of different machining data was also shown to impact the surface free energy and its polar component of Mg alloy specimens. Complementary to the results from the experimental part of the study, the investigated machining processes were modelled by means of statistical artificial neural networks (the radial basis function and multi-layered perceptron). The artificial neural networks (ANNs) were shown to perform well as a tool for the prediction of Mg alloy surface roughness parameters and the maximum height of the profile (Rz) after milling and brushing.

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