Wyniki wyszukiwania - BazTech

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Improvement of production process capability - a case study of two furniture companies

Sujová Andrea, Simanová Lubica

Engineering Management in Production and Services

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2021

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Vol. 13, no. 3

37--49

EN

The article aims to assess the improvement of the process capability by implementing the Six Sigma methodology in furniture enterprises with different levels of the quality management system (QMS) and ownership. The implementation of the Six Sigma methodology according to the DMAIC steps, also analysis, evaluation, and comparison of the implementation results were performed to improve the process performance. The implementation of the Six Sigma methodology was carried out in an international enterprise with foreign capital and a certified Quality Management System (QMS) and in a domestic enterprise with purely domestic capital without an established Quality Management System. The implementation results confirmed the positive development in the key indicators of critical processes, namely, in the reduction of DPMO, the increase of efficiency and the level of Sigma Process, and the values of process capability indices. The positive effects were more pronounced in the international enterprise compared to the domestic. The application of the Six Sigma methodology brings better results in manufacturing companies with international management skills and implemented certified QMS. These two aspects can be key success factors by managing and improving process capability. The practical contribution of the paper can be seen in the proposal of suitable methods and tools by implementing Six Sigma conception in furniture manufacturing regardless of the ownership or level of quality management systems.

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Implementation of Six Sigma methodology using DMAIC to achieve processes improvement in railway transport

Nedeliaková Eva, Štefancová Vladimíra, Hranický Michal Petr

Production Engineering Archives

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2019

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Vol. 23

18--21

EN

The provision of quality transport services is a prerequisite for the creation of an efficient organization that can meet the expectations and requirements of both the enterprise itself and its customers. From the railway enterprise's point of view, it is necessary to pay attention to the increasingly demanding requirements of its customers in railway passenger transport. This article focuses on identifying defects in rail transport processes that negatively affect ordinary operations. One of the most serious bottlenecks affecting railway transport reliability is the train delay, which fundamentally affects the perception of railway transport. At the same time, it emphasizes the need to apply individual tools according to the DMAIC cycle in order to achieve continuous improvement. The aim of the implemented Six Sigma methodology in railway enterprise is disciplined application of statistical problem-solving tools to recognize the gaps in the transport process and set out individual steps for their gradual removal.

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Using the Six Sigma methodology in combination with other tools and methods used in industrial practise

Lestyánszka-Škůrková K.

Zeszyty Naukowe. Quality. Production. Improvement

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2017

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No. 1 (6)

69--92

EN

The aim of the article is application of Six Sigma method in glue applying process during assembling of IGBT modules of products family SEMiX3 performed in manufacture of SEMIKRON company. There are also used other tools and methods as Pareto diagram, Ishikawa diagram, hypothesis testing, Voice of the customer, involved in DMAIC cycle. There was found, that the most important impact of the glue applying process is the amount of glue. This is related to time savings and also Money savings as well as reduce the number of repairs.

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Wykorzystanie analizy błędów grubych oraz krzywych Johnsona w metodzie Six Sigma

Czabak-Górska I. D.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

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2015

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z. 105

37-40

EN

The paper describe the importance of Gross Error eliminating in process stability assessment. The analysis carried out at the manufacturing enterprise indicated that Gross Error might be cause of false signals in Control Chart. Additionally, the author, proposed using Johnson curves transformation to applying in statistical tools (including Control Chart, which are used in Six Sigma methodology) when the measurement data aren’t normally distributed.

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Application of lean and six sigma methodology in improving of production processes

Ćwikła G., Grabowik C., Kalinowski K., Janik W.

Selected Engineering Problems

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2014

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nr 5

21--26

EN

This paper describes example of LEAN and SIX SIGMA methodology application in order to improve production processes. The aim of the study was to improve the production processes of wire sheaves for electrical installations of cars and agricultural machinery. The main problem was the high production costs and long lead times of technological process in case of the prototypes and sheaves produced in small series. Significant number of manufacturing defects has also been a problem. The analysis carried out in accordance with the methodology DMAIC and SIX SIGMA allowed identification of the main problems and development of solutions. As a result of the work proper solutions has been developed and implemented to streamline the production processes, as well as improve the quality and efficiency of the production system in the studied area.

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Jakość części maszyn w aspekcie metodyki Sześć Sigma

Sałaciński T

Obróbka Metalu

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2013

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nr 2

18--23

PL

Sześć Sigma jest zrozumiałym i elastycznym systemem, którego celem jest osiągnięcie, utrzymanie i maksymalizacja sukcesu firmy. To dogłębne zrozumienie potrzeb potencjalnych klientów, zdyscyplinowane wykorzystanie faktów, danych pomiarowych oraz analizy statystycznej w celu ulepszenia i kreowania procesów biznesowych. Skuteczne wdrożenie Sześć Sigma prowadzi do redukcji kosztów, zwiększenia produktywności, wzrostu udziału w rynku, utrzymania klienta, redukcji wad, zmiany kultury działania przedsiębiorstwa oraz rozwoju produktu.

EN

Six Sigma is a clear and flexible system designed for achieving, maintaining and maximizing company success. It is a deep understanding of needs of potential customers, well regulated use of facts and measurement data, as well as statistical analysis to create and improve business processes. Effective implementation of Six Sigma leads to cost reduction, productivity grow, enlargement of market share, binding customers, defect reduction, change in company activity culture and development of product.

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Wykorzystanie metodologii Six Sigma w doskonaleniu procesu produkcji rur zgrzewanych

Żaba K.

Rudy i Metale Nieżelazne

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2008

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R. 53, nr 11

704-713

PL

W artykule przedstawiono wyniki badań dotyczące doskonalenia procesu wytwarzania stalowych rur zgrzewanych z powłoką Al-Si przeznaczonych na elementy układów wydechowych z wykorzystaniem metodologii Six Sigma. Doskonaleniu poddano jednostkowy proces badania rur zgrzewanych metodą roztłaczania. Procedura postępowania była zgodna z algorytmem DMAIC. Wyniki badań przedstawiono za pomocą wybranych narzędzi statystycznych.

EN

The main target stated by the creators of this methodology is a radical improvement in the quality of goods (services), in the way of minimizing the changeability of the process, with application of statistic tools. The Procedure of performance, connected with improvement of quality of the stated process, product or service, is detaily defined by the further steps of execution of the so called six sigma project, i.e. DMAIC (Define - Measure - Analyze - Improve - Control). In the Six Sigma approach, the quality is referred to as "right to value". That means that the customer requires some value from the product delivered to him, i.e. some expected application and aesthetic features, reliability, etc, for which he is ready to pay. On the other hand, the organization possesses a well-justified right to expect big value from the product - the product must not produce costs, it has to "make" money. Hence, the very sense of Six Sigma is the appearing of "win-win" situation where the needs of the organization and the customer meet. The project was executed at a facility of a company producing welded steel tubes with Al-Si coating, both smooth and perforated, provided for elements of exhaust systems. During manufacturing of tubes in one of the lines, two kinds of waste pipes are produced. The first reason for production of scrap is stopping or restarting the operation of welding line after resetting, resulting in a non-welded or poorly welded section of tube. The second reason for production of scrap pipes are technological tests conducted by line operators, based on expanding and pressing through a section the tube to check the quality of weld. An expanded tube goes for scrap. According to the control cycle, two samples are checked per each batch of tubes. The aim of the project was to reduce the quantity of scrap from technological tests by ca. 70 %, without intervention into the quantity of sampled sections of tube in the technological line.