Modal analysis of replica boss hole during the deburring process in aerospace manufacturing industry

• Main Authors: Andriani, Claudy, Caesarendra, Wahyu, Tjahjowidodo, Tegoeh, Wijaya, Tomi, Pappachan, Bobby Kaniyamkudy
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2018
• Subjects: Modal Analysis; DRNTU::Engineering::Mechanical engineering; Aerospace Manufacturing
• Online Access: https://hdl.handle.net/10356/88229; http://hdl.handle.net/10220/45684
• Institution: Nanyang Technological University

The monitoring of surface finishing processes in aerospace manufacturing industry becomes one of key issues to maintain the overall quality of product or part. To date, the surface quality monitoring post machining processes such as deburring, use visual inspection, surface roughness test or laser gap gun. The whole manufacturing process then requires a considerable amount of time as the production line must be halted due to these measurements taking place. This study presents an online monitoring system to measure the chamfer quality of replica boss hole post-deburring process. Vibration signal was measured during the deburring process and the features that correlate to the deburring stages (passes) were extracted. This paper focuses on the validation of actual vibration signal with the modal analysis of work coupon (replica boss hole) to obtain the correlation between the vibration amplitude level on particular region and the mode shape of work coupon during the deburring process.