Quality of Chrome Plated Compression Rings: An Empirical Study
Sashikala Parimi1, Srinivaasa Vijay Datta Banoor2, Pavan Kishore. M. L3

1Sashikala Parimi, Professor, Department of Operations and IT, IBS, IFHE, Hyderaba (Telangana), India.
2Banoor Srinivaasa Vijay Datta, Department of Mechanical Engineering, Pinaka Aerospace Solutions Pvt. Ltd, Bangalore (Karnataka), India.
3Dr. M.L.Pavan Kishore, Assistant Professor, Department of Mechanical Engineering, Faculty of Science and Technology, IFHE, Hyderaba (Telangana), India.

Manuscript received on 18 April 2019 | Revised Manuscript received on 25 April 2019 | Manuscript published on 30 April 2019 | PP: 1464-1470 | Volume-8 Issue-4, April 2019 | Retrieval Number: D63333048419/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The chrome thickness data would be acquired using a delta-scope in case of plain compression rings. A process with measurement errors becomes incapable in making improvements to the process and may make matters worse. In the process of obtaining measurements and data there may be variations and produce defects. This paper aims at the quality control aspects of chrome plated compression rings and increase the quality levels of the rings. The control charts of Shewart were used to check whether the thickness is within the standards. Further, Analysis of variance (ANOVA) is used to test whether the measurement of thickness in at the three different positions is significantly different or not. It was observed that, from the X –bar chart, all the averages of the cells are falling within the control limits for all the positions and so the process in control and the average thickness of the rings in all cells are within the specified limits whereas from the Range Chart, the range values of the cells are falling within the control limits for 3’O clock position and 6’O clock position but not in the case of 9’O clock position. Further from ANOVA there is no significant difference in the thickness at all the three positions
Keywords: Chrome Coating, Control Charts, Quality, ANOVA

Scope of the Article: Quality Control