Study on Identification and Classification of Causes which Generate Welds Defects

Abstract:

In the practice of organizations, we notice the existence of a problem which influences negatively the operating parameters of a product and it has to be very accurately identified and proposals have to be drawn-up in order to remove it. This paper presents a method for assessing the quality of welding by applying one of the classic instruments of quality management. The clauses that generate welding defects are identified and classified. The causes are also grouped in two large categories: positive causes and negative causes depending on the effect they have on the studied problem. An Ishikawa diagram with a new formula 4M+4RM was proposed, to separate the positive causes from the negative ones. The importance of this method is also mentioned in the analysis of quality products.

• Periodical: Applied Mechanics and Materials (Volume 657)
• Pages: 256-260
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.657.256
• Online since: October 2014
• Authors: Liliana Luca*, Liviu Marius Cirtina, Alin Stancioiu
• Keywords: Cause, Ishikawa, Quality Management, Welds Defects

References

[1] K. Ishikawa, Introduction to quality control, London, Chapman &Hall, (1990).

[2] A.O. Paraschivescu, Quality management, Tehnopress Publishing, Iasi, (2006).

[3] L. Luca, Study on the determination and classification of the causes that determine the faulty operation of a vehicle fuel pump. Recent Researches in Manufacturing Engineering, Proceeding of the 3-rd WSEAS International Conference On Manufacturing Engineering, Quality and Production System, Braşov, 2011, pp.21-24.

[4] Kam Cheong Wong, Using an Ishikawa diagram as a tool to assist memory and retrieval of relevant medical cases from the medical literature, Journal of Medical Case Reports 5: 120 , London, 2011, available at http: /www. jmedicalcasereports. com/content/5/1/120 accessed: 16. 12. (2013).

DOI: 10.1186/1752-1947-5-120

[5] D. Dehelean, Fusion welding (in Romanian), Sudura Publishing, Timisoara, (1997).

[6] L. Vlasceanu, Introduction to sociological research methodology, Polirom Publishing, Iasi, (2013).

[7] EN ISO 6520-1/2007. Welding and allied processes. Classification of geometric imperfections in metallic materials. European Committee for Standardization.

[8] N. Cananau, Systems for quality assurance, Junimea Publishing, Iaşi, (1998).

[9] I. Ionita, Quality management and value engineering (in Romanian), Publishing ASE Bucharest, (2008).

[10] K. Ishikawa, Guide to Quality Control. Asian Productivity Organization, Tokyo, (1986).

[11] M. Olaru, Quality management (in Romanian), Economica Publishing , Bucharest, (1999).

[12] O. Pruteanu, Total quality management (in Romanian), Junimea Publishing, Iasi, (1998).