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Shipbuilding pipeline production quality improvement

Buksa T., Pavletic D., Sokovic M.

Journal of Achievements in Materials and Manufacturing Engineering

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2010

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Vol. 40, nr 2

160-166

EN

Purpose: The pipeline production is one of major processes in shipbuilding industry. Quality improvement and risk assessment in this process can yield significant savings, both in terms of internal quality costs as well as in terms of customer satisfactions. Design/methodology/approach: Shipbuilding pipeline production quality improvement has been carried out by application of FMEA (Failure Mode and Effect Analysis) method. For the successful implementation of FMEA method it is necessary to identify process failure modes or possibility of the appearance of non-compliance, as well as their possible causes. For qualitative analysis of key input variables of the process, in the paper is used Ishikawa diagram and p-chart. Findings: It is shown that proposed approach to risk assessment in shipbuilding pipeline production is applicable to real casa scenario. The analysis has identified the points in the process with the highest probability of occurrence of nonconformities, or the highest risk for error. Research limitations/implications: As the experimenting has been conducted in shipyard, within production process, research schedule must have been set in accordance with production pace. Also, due to character of production process the data collecting was adopted to the production plan in that particular moment. Practical implications: Dealing with causes of potential nonconformities in the process can significantly contribute to the reliability and robustness of the process. Corrective actions that have been taken based on results of analysis significantly contributed to the level of quality in the pipeline production process. Originality/value: The pepper is dealing with a well known method applied in different production environment that are mostly conservative in production approach. It was shown that successful application of proposed approach can yield benefits especially in improved quality of produced pipelines within shipbuilding industry.

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Quality Improvement Methodologies - PDCA Cycle, RADAR Matrix, DMAIC and DFSS

Sokovic M., Pavletic D., Kern Pipan K.

Journal of Achievements in Materials and Manufacturing Engineering

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2010

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Vol. 43, nr 1

476--483

EN

Purpose: of this paper is to introduce the reader to the characteristics of PDCA tool and Six Sigma (DMAIC, DFSS) techniques and EFQM Excellence Model (RADAR matrix), which are possible to use for the continuous quality improvement of products, processes and services in organizations. Design/methodology/approach: We compared the main characteristics of the presented methodologies aiming to show the main prerequisites, differences, strengths and limits in their application. Findings: Depending on the purpose every organization will have to find a proper way and a combination of methodologies in its implementation process. The PDCA cycle is a well known fundamental concept of continuous-improvement processes, RADAR matrix provides a structured approach assessing the organizational performance, DMAIC is a systematic, and fact based approach providing framework of results-oriented project management, DFSS is a systematic approach to new products or processes design focusing on prevent activities. Research limitations/implications: This paper provides general information and observations on four presented methodologies. Further research could be done towards more detailed study of characteristics and positive effects of these methodologies. Practical implications: The paper presents condensed presentation of main characteristics, strengths and limitations of presented methodologies. Our findings could be used as solid information for management decisions about the introduction of various quality programmes. Originality/value: We compared four methodologies and showed their main characteristics and differences. We showed that some methodologies are more simple and therefore easily to understand and introduce (e.g. PDCA cycle). On the contrary Six Sigma and EFQM Excellence model are more complex and demanding methodologies and therefore need more time and resources for their proper implementation.

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Quality tools - systematic use in process industry

Paliska G., Pavletic D., Sokovic M.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 25, nr 1

79-82

EN

Purpose: The paper is dealing with one segment of broader research of universality systematicness in application of seven basic quality tools (7QC tools). The research was carried out in different areas that include power plant, process industry, government, health and tourism services. The aim of the research was to show on practical examples that there is real possibility of application of 7QC tools. Furthermore, the research has to show to what extent are selected tools in usage and what reasons of avoiding their broader application are. The simple example of successful application of one of quality tools are shown on selected company in process industry. Design/methodology/approach: In the research each of 7QC tools have been tested and its applicability in the frame of selected business has been shown. Systematic approach is explained on the example of selected company in process industry which is ISO 9000:2000 certified. Findings: Conducted research has shown that there is possibility of systematic application of all of the 7QC tools in the frame of companies' overall quality management system. The research has also shown that 7QC tools are not so wide spread as expected, although they are quite simple for application and easy to interpret. The further investigation should be carried out in order to find reasons for such condition, and, in accordance, to define appropriate corrective actions to eliminate or minimize that problem. Practical implications: The partners in research were from different area of business, as stated above. To each partner has been shown in what manner can quality tools are applied and how formal quality management system can help in process improvement on day-to day basis. Originality/value: The main value of conducted research is, in author's opinion, to show to each partner in research that all of 7QC tools can be successfully applied within their own business. Also, the correlation between formal quality management system and 7QC tools has been research and shown that formal quality management system has positive influence and is supportive to application of 7QC tools.