• Syed Sibghatullah Hussaini Quadri
• G.M. Sayeed Ahmed

Welded Interfacial cracks in the friction welding of dissimilar metals are most important aspect for assessment of welding quality and welding strength. Manual inspection of the friction welded joint is purely depends on the skilled operators observations and experience in evaluating porosities, irregularities, cracks, and voids. The defects are traced by manual inspection based on experts experience and knowledge with respect to the combination of two dissimilar metals and their compatibility. In this research, an attempt has been made to apply the effectively technique for image assessment of the welded surface known as Image segmentation technique (IST) in determining the welded surface quality of dissimilar joint by friction welding. The weld bonding quality between dissimilar metals in friction welding is dependent on coefficient of friction between the welding surfaces. In order to explore the capabilities of the image segmentation technique friction welding experiments were conducted with various factors such as Coefficient of friction, Friction time, Friction pressure, speed, Torque of rotating work piece.Experiments were validated with the image processing results and claimed that the proposed image processing technique is an effective method in the assessment of fractured surfaces. Image processing technique is found to be easier in interfacial crack detection, reducing the computation cost, high-speed method with more accuracy in tracing welded defects. This method has a significant improvement in the quantification of fractured surface, crack detection and non-welded areas detectionin terms of segment Pixels at the desired welded region and easy when comparedto conventional detection techniques by using operator's decisions.

Friction Welding, Aluminum, Brass, Dissimilar Joint, Image Processing Technique

"Evaluation of Interfacial Fractured Surface in Aluminum–Brass Joint by Friction welding process through Image Processing Technique.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.700-705, May-2019, Available :http://www.jetir.org/papers/JETIRCJ06148.pdf

"Evaluation of Interfacial Fractured Surface in Aluminum–Brass Joint by Friction welding process through Image Processing Technique.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp700-705, May-2019, Available at : http://www.jetir.org/papers/JETIRCJ06148.pdf