Failure Analysis and Improvement of Defective Clamping Pad During Leak Testing Process Using Kepner-Tregoe Analysis
- PDF / 2,163,177 Bytes
- 9 Pages / 595.276 x 790.866 pts Page_size
- 26 Downloads / 175 Views
TECHNICAL ARTICLE—PEER-REVIEWED
Failure Analysis and Improvement of Defective Clamping Pad During Leak Testing Process Using Kepner-Tregoe Analysis Ravinder Jhorar . Vimal Kumar Pathak . Pooja Singh
Submitted: 20 May 2020 Ó ASM International 2020
Abstract In industries, the breakage of the clamping pad in the leak testing machine is a common and challenging problem during product quality control process. In the same context, it becomes essential to identify the possible causes creating hindrance to component clamped on leak testing machine. This paper presents a systematic and iterative methodology for analysing the failure and providing possible improvements in clamping pad for the successful operation of leak testing machine. The investigation of working environment of leak testing machine, Kepner-Tregoe (K-T) analysis, seven quality control tools, and quality circle concept are used to provide the root cause of the cracks and failure of clamping pad. Based on the failure analysis, suitable actions are suggested and implemented with process redesign. The improved process design led to negligible failures from the preliminary failure rate. The entire methodology is universal in nature and can be employed for failure analysis in a wide variety of industrial problems. Keywords Leak testing K-T analysis Clamping pad Failure analysis
Introduction With the increasing demand of high-quality and high-performance components, the process of testing and inspection becomes inevitable in quality control of manufactured parts [1]. Crack or leak occurrence, surface blemishes, and R. Jhorar V. K. Pathak (&) P. Singh Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India e-mail: [email protected]
substantial failures are of significant interest in most of the manufacturing scenarios [2]. To this end, leakage testing is considered as one of the important processes in production lines to detect cracks or leaks within an engineering component. Additionally, the process of leak testing triggers most of the bottlenecks during the quality control of any manufactured components [3]. In complex shaped engineering components, like cylinder head, it is rarely possible to measure or detect the irregular and small dimensions of leak. A leak can be referred as flow of gas or liquid from the component due to imperfection such as a hole, crack, or bad seal. Typically, the leakage testing method aims at initially clamping the component on a fixture, pressurizing it with air, and finally submerging the component in water. The presence of leakage and internal cracks if available is visually visible in the form of bubbles [4]. The method of leakage testing is mandatory in a way to localize the leak, hole, or porosity while maintaining the integrity of a manufactured component and thus protects it from failure during its actual operation. In addition, for automobile applications, leakage testing of cylindrical block is essential to prevent poor engine performance as it is the first indication of cr
Data Loading...
