Title: Impact of lean manufacturing viz. quality control tools on performance improvement of manufacturing industry: a case study

Authors: Rajesh Kumar; Ashwini Kumar; Rajender Kumar

Addresses: Department of Mechanical Engineering, School of Engineering and Technology, Manav Rachna International Institute of Research and Studies, Faridabad, 121003, India ' Department of Mechanical Engineering, School of Engineering and Technology, Manav Rachna International Institute of Research and Studies, Faridabad, 121003, India; Research and Development Cell, Department of Mechanical Engineering, School of Engineering and Technology, Manav Rachna International Institute of Research and Studies, Faridabad, 121003, India ' Department of Mechanical Engineering, Graphic Era (Deemed to be University), Dehradun, 248002, India; Centre for Research Impact & Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura, 140401, Punjab, India

Abstract: The purpose of this study is to control quality of the falling and loose cover of rain tunnel light sensor (RTLS) of product in manufacturing organisation. QC tools including fishbone diagram has been prepare to analyse root cause of the problem, and preventive and corrective actions are taken to remove the problem. Rejection of the product was found out be 7 products per day. Cover was falling out of limits and root cause of the problem has been analysed to ascertain the benefits occurred. Major in-house rejection and customer complaints were there. Seven steps have been followed to remove the problem and achieving different benefits.

Keywords: fishbone diagram; rejection; root cause analysis; RTLS; rain tunnel light sensor; quality tool; T-test; Why-why analysis; capacity planning.

DOI: 10.1504/IJASM.2026.154938

International Journal of Agile Systems and Management, 2026 Vol.19 No.3, pp.398 - 414

Received: 02 Sep 2024
Accepted: 11 Jan 2025
Published online: 20 Jul 2026 *

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