Application of Acoustic Emission Technique to Monitor Friction Stir Welding Process to Produce Defect Free Welds

Rajaprakash, B.M.; Suresha, C. N.; Upadhya, S. Mamatha

doi:10.1007/978-3-319-48108-1_36

Cited by 2 publications

(1 citation statement)

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“…During establishing the relationship between FSW input process parameters and output AE parameters one of the FSW process parameters were varied continuously and AE signals were recorded. It was observed that as the FSW parameters varied the pattern of AE signal were also varied [21]. It has been observed from the literature that AE technique has been successfully adopted in many fields, namely laser welding, health monitoring of aerospace structures, study of tool wear during drilling, turning, milling, etc.…”

Section: Introductionmentioning

confidence: 99%

Application of Acoustic Emission Technique for Online Monitoring of Friction Stir Welding Process during Welding of AA6061‐T6 Aluminum Alloy

Rajaprakash¹,

Suresha²,

Rachappa³

et al. 2014

TMS 2014 Supplemental Proceedings

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Acoustic Emission (AE) technique has been successfully used to monitor processes like metal cutting, grinding and electron beam welding as a nondestructive evaluation method. Friction Stir Welding (FSW) is a solid state welding that avoids problems associated with fusion welding and is used in aerospace industries. An attempt has been made to study the application of AE technique to monitor FSW process by identifying the occurrence of defect while welding is in progress and suggest means to rectify the defect. In this study, aluminum alloy AA6061-T6 has been used as work piece material. It was observed that the nature of AE signals produced during welding are helpful in identifying the occurrence of defects produced. The values of a few AE parameters derived from AE signals were found to be helpful in developing a model for online monitoring of FSW process to produce defect free welds. The model has been successfully validated.

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Section: Introductionmentioning

confidence: 99%