Ograniczanie wyników
Czasopisma help
Autorzy help
Lata help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 23

Liczba wyników na stronie
first rewind previous Strona / 2 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  inżynieria jakości
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 2 next fast forward last
EN
Purpose: The aim of the article was to propose the possibility of implementing a work standardisation card for a company in the passenger land transport industry – a ski lift. Design/methodology/approach: The analysed ski lift, located in Southern Poland, should undergo daily checks on the condition of its equipment to ensure trouble-free operation. Current non-standardised operations may increase the risk of error. The proposed document, the work standardisation card, makes it possible to supervise the control and minimise the possibility of failure. Findings: The introduction of the work standardisation card allows to increase the efficiency of the work and the analysis of the results obtained allowed to classify the most time-consuming activities. Research limitations/implications: In order to reduce costs, as a result of failures, and to increase quality and customer satisfaction, it is proposed to introduce documents as part of the working standard. Practical implications: Future research should focus on opportunities to further improve machine condition monitoring. The presented methodology can be applied to other activities that occur during ski lift operation, such as breakdowns. Originality/value: The work is a useful resource for companies in the tourism and transport industry and the transport sector, due to the universality of the standards used.
EN
Purpose: The study aimed to locate and identify weak areas in the technological process of the aluminium piston, where the occurrence of events with significant risk could interfere with its proper course and meet the customer's requirements. Design/methodology/approach: One of the production lines on which the aluminium pistons are produced was chosen for the test. Risk identification within the process was carried out through the implementation of a simplified SWOT analysis, development of the process risk structure taking into account the identified opportunities and threats and development of a matrix for responding to key risks identified in the risk structure. Findings: The three most significant risks were identified: failure to meet customer requirements, delays in delivery of castings, forgings, components and errors in monthly production plans, as well as increased process costs. The most effective actions concerning the risks under consideration turned out to be: drawing up detailed records in the description of the subject of the contract, as well as additional supervision and inter-operational controls and performing detailed analysis of the documentation before the beginning of the contract. Research limitations/implications: In order to reduce the risks as part of the technological process, remedial actions and a response plan are proposed. Practical implications: Future research will be carried out within the remaining technological processes within the company. The methodology presented should be applied to companies that are committed to responsible risk management. Originality/value: The study is a useful material for manufacturing companies indicating a comprehensive methodology for identifying key risks within technological processes.
EN
Purpose: The aim was to analyze inconsistencies in the production process of rebated internal frame and panel doors using KPIs and to identify causes of deviations from the quality plan using selected quality management tools. Design/methodology/approach: KPIs and instruments of quality management (Pareto-Lorenz diagram, Ishikawa diagram and 5Why?) were used. The survey covered products manufactured in the third and fourth quarters of 2019. Findings: It was found that the most serious non-compliance was the presence of an uneven rim surface (Pareto-Lorenz diagram). Potential causes were inadequate gluing of the door leaf layers and the use of worn flange processing equipment (Ishikawa diagram). On the other hand, the root cause of the quality problem turned out to be the lack of supervision and proper training of employees (5Why method). Research limitations/implications: The presented research process has no limitations – it can be used in manufacturing companies. Further research will concern the application of the methodology to the analysis of other products offered by the company. Practical implications: the research contributed to the identification of the causes of the lowered quality level, which will allow to implement appropriate remedial measures. As part of the improvement measures, training must be carried out at the workplace and the availability of work instructions must be ensured. Originality/value: so far no extended quality analyses have been conducted in the company – no KPIs have been used in combination with extended analyses carried out with the use of quality management tools. The presented methodology is useful for the company where the analysis was made and for the manufacturing companies that want to effectively improve their production processes.
EN
The aim of the study was to implement an integrally configured method of quality control of frictional welding of piston forgings intended for Diesel Man trucks. The use of the method (consisting of the 5W2H method, the Ishikawa diagram and the ABCD - Suzuki method) would contribute to the detection of the causes of non-compliance and consequently to the elimination of non-compliant products. Steel pistons have become the subject of research due to significant problems with maintaining their expected level of quality after the introduced structural and technological changes. The proposed method has helped to identify the root cause of non-compliance. It was: incorrect design of the combustion chamber in terms of diameter and depth. The study shows that it is advisable to use an integrated approach to finding the causes of quality problems on the example of the friction welding process. This was a new solution for the company, as no in-depth analyses of quality problems using a sequence of quality management techniques have been carried out so far.
5
EN
The aim of the study was to indicate the reasons for non-compliance of aluminium rim castings and, using quality management instruments (Pareto-Lorenzo diagram and 5WHy method?), elimination or reduction of non-compliant products. The object of the research was an aluminium rim, while the diagnostic process of the object of the research was based on the quality control of the chemical composition of the casting, the control of mechanical properties and the control of the continuity of the material structure by radiographic and microscopic methods. On the basis of the research carried out, it was found that a sensitive casting area is the front edge of the rim rim - a significant number of porosity clusters were identified in this area. The reason for their occurrence was also specified - too rapid flooding of moulds, which resulted in gassing of the alloy. The identified cause had its origins in human resources mismanagement, namely the lack of training of the newly recruited employee. So far, the company has not carried out analyses of quality problems with the use of a sequential quality management methodology, so the implemented corrective actions have not always led to the full achievement of quality objectives. The presented sequential method, which is a combination of diagnostic and control tests and quality management instruments, is a universal way to monitor the level of quality of products and to quickly correct nonconformities.
6
EN
Currently, effective quality management of manufactured products is a factor determining the development of manufacturing companies. However, the identification of the source of non-compliance and the analysis of its causes are sometimes underestimated and are not followed by appropriate methodologies. The study aimed to streamline and improve the production process of aluminium pistons for passenger cars by solving the problem related to a significant number of non-compliant products. The analysis of types of nonconformities identified through penetration testing was performed. The use of histogram, brainstorming session and Pareto-Lorenz diagram was proposed, which allowed identifying the causes of the problem. The presented solution shows the practical effectiveness of a sequence of selected instruments to solve production problems. The proposed sequence of methods can be implied in other qualitative analyses in different companies.
PL
Celem rozważań podjętych w artykule jest ukazanie złożoności problematyki jakości i ergonomii oraz jej zbieżności na gruncie inżynierskim. Te cechy powodują, że konieczne jest stosowanie systemowego i holistycznego podejścia podczas badania, analizowania i podejmowania inżynierskich działań zmierzających do podwyższania poziomu całkowitej jakości (w tym: ergonomicznej) procesów wytwarzania oraz wyrobów technicznych W artykule skupiono się na podstawowych problemach należących do tzw. inżynierii ergonomicznej oraz inżynierii jakości, charakterystycznych dla zdefiniowanych faz istnienia wyrobów technicznych (LCA – Life Cycle Analysis). Klasę wyrobów technicznych ograniczono do maszyn, narzędzi ręcznych oraz urządzeń stosowanych do realizacji podstawowych technologii stosowanych w budowie i eksploatacji maszyn. Ukazano zależności problematyki ergonomicznej i jakościowej występujące w różnych fazach istnienia wyrobu. Zwrócono uwagę na często zbyt powierzchowne traktowanie (z punktu widzenia ergonomii i ekologii) fazy likwidacji wyrobu. Ważnym aspektem są związki problematyki ergonomicznej i jakościowej z ekonomiczną oraz ekologiczną (w jej ramach – strategia 3R), którą należy objąć wszystkie fazy istnienia wyrobu.
EN
The paper discusses the basic problems of ergonomic engineering and quality engineering, specific to the defined phases of the life cycle of technical products (LCA). The range of technical products was limited to machines, hand tools and equipment used to implement basic technologies in the construction and operation of machines. The relationship between the ergonomic and quality issues in the identified phases of the product life cycle was presented. Attention was paid to overgeneralization (in the ergonomic and ecological context) in the product’s decommissioning phase. It is important to highlight the significance of the relationship between ergonomics and quality, and economic and ecological issues (such as the 3R strategy), which should be included in all of the phases of the product’s life cycle.
EN
Purpose: of this paper is to cover the main domains of industrial engineering based on the statistical and non-statistical techniques related to quality engineering. In this research, in addition to the review of the main domains of industrial engineering and the required specifications of technique, have been tried to present an integrated model of application of these techniques in order to create or increase the total score of productivity and sustainability in related scale with Analytic Hierarchy Process (AHP) approach. Design/methodology/approach: of this paper has been divided in two categories. The method of theoretical research consists of data collection tools, reference books, and several articles of the Iranian Center for Defences Standard. The method of practical research is the assessment of selected statistical and non-statistical techniques related to quality engineering, which have been deployed in the main domains of industrial engineering related to the manufacturing factories that are belonged to the selected industries of the Defence Industries Organization (DIO). Findings: of this paper consist of four main results. The maximum impact of standard statistical techniques in order to cover the main domains of industrial engineering and the required specifications of technique is related to the Statistical Process Control (SPC). Furthermore, the maximum impact of non-statistical techniques in order to cover them, is related to the Quality Function Deployment (QFD). The other results, which can be assessed with details, have shown that the maximum importance of the main domains of industrial engineering is related to the planning and manufacturing control and the maximum importance of the required specifications of technique is related to the mathematical analysis too. The total score of productivity and sustainability in related scale has been achieved to the upper than moderate level. In this research, the identification and determination of important factors, which have influenced on the productivity and sustainability have been done for the first time. The percentage of impact of the quality engineering techniques for both productivity and sustainability in the industrial engineering field is approximate to 70%. Research limitations/implications: of this paper suggest that the application of quality engineering tools including statistical and non-statistical techniques can be generalized to the other engineering or management fields with the same Analytic Hierarchy Process (AHP) or Analytic Network Process (ANP) approach in phase environments. Originality/value: of this paper have been extracted from the managers and experts involved with qualitative issues in the different levels of the Defence Industries Organization (DIO) and the Maham Group. This values are assessed from two aspects. Firstly, the validity of this research was carried out using expert’s opinions (Industrial advisers, Lead auditors of the Iranian center for Defences Standard and university professors). Secondly, all values of the research reliability are acceptable.
PL
W niniejszym artykule przedstawiono proces zastosowania wybranych narzędzi inżynierii jakości do analizy i rozwiązywania problemów z wadliwością procesu obróbki plastycznej – kucia matrycowego w jednej z wybranych fabryk łożysk w Polsce. W pierwszej części w artykułu opisano i zobrazowano, za pomocą schematu blokowego, proces wytwarzania pierścieni łożyskowych w badanej fabryce. Analiza struktury wadliwości procesu kucia to kolejna część niniejsze opracowania. Strukturę wadliwości procesu zobrazowano za pomocą wykresu Pareto-Lorenza. Do identyfikacji przyczyn zidentyfikowanych wad krytycznych zastosowano diagramy przyczynowo skutkowe, które zawarto w przedostatniej części opracowania. Na końcu artykułu zawarto zalecenia mające na celu poprawę procesu kucia matrycowego w badanym zakładzie.
EN
The article presents the process of using selected quality engineering tools for analysis and solving problems of the machining process – die forging in one of the selected bearings factories in Poland. The first part of this article, the production process of bearing rings in the factory was described using a flowchart. Analysis of the defect structure of the forging process is another part of this study. The defect analysis was depicted in the ParetoLorenz graph. Causes of critical defects were identified using the Ishikawa Diagrams. Thanks of it the recommendations were formulated to correct the die forging process in the researched company.
EN
In the article elements of quality engineering have been presented, such as: Pareto chart and FMEA method for evaluating the scraper conveyor’s failure frequency. A percentage share of particular failures in the scraper conveyor has been estimated by means of the Pareto chart. FMEA was used to identify the causes of failures and their effects. Quality engineering elements can be widely applied in an initial analysis of technical facilities’ failure frequency in various industry branches.
PL
W artykule przedstawiono zastosowanie elementów inżynierii jakości takich jak: diagram Pareto-Lorenza oraz metoda FMEA do oceny awaryjności przenośnika zgrzebłowego. Za pomocą diagramu Pareto-Lorenza oszacowano procentowy udział poszczególnych awarii w przenośniku zgrzebłowym. Metoda FMEA posłużyła do wskazania przyczyn wystąpienia awarii oraz określenia ich skutków. Wykorzystane elementów inżynierii jakości do wstępnej analizy awaryjności obiektów technicznych może znaleźć szerokie zastosowanie w różnych gałęziach przemysłu.
11
Content available remote Inżynieria jakości – teoria i praktyka
PL
W artykule scharakteryzowano istotę i obszary zastosowań inżynierii jakości, czyli kwalitologii stosowanej. Pokrótce omówiono metody, narzędzia i techniki, wykorzystywane w tej dziedzinie wiedzy. Przywołano obowiązujące w tym obszarze normy i inne dokumenty normalizacyjne. Na podstawie przeprowadzonych badań w przedsiębiorstwie transportowym, zajmującym się transportem publicznym w mieście, podano praktyczne przykłady zastosowań „instrumentarium” z obszaru inżynierii jakości.
EN
The article describes the essence and application areas of quality engineering, or applied qualitology. Briefly were discussed methods, tools and techniques used in this field of knowledge. Standards and other standardization documents in force in this area have been recalled. Based on the study in a transport company, dealing with public transport in the city, were given practical examples of use "instruments" in the area of quality engineering.
12
Content available remote Inżynieria jakości w technikach wytwarzania - cz. I
PL
Współczesne techniki wytwarzania stosowane w obróbce metali wymagają sprawnych i niezawodnych systemów nadzorowania procesów technologicznych. Głównym zadaniem takich systemów jest sterowanie procesami z wykorzystaniem metod statystycznych do oceny ich stabilności i zdolności. Niniejszy artykuł definiuje takie metody z uwzględnieniem kwalifikacji maszyn, środków kontrolno-pomiarowych i procesów technologicznych.
EN
The publication presents an example of using the Kano method to analyse the quality attributes of a product in the automotive branch. Using the Kano method, technical attributes of a product were analysed for a front bumper installed in Opel cars, which was followed by the identification of hidden factors by means of exploration factor analysis. The application of the extrapolation factor analysis has made it possible to discover that the examined set of twenty attributes of the product contains 5 hidden factors, which included: bumper aesthetics, resistance to external factors, lacquer properties, resistance to temperature and the precision of workmanship.
PL
W publikacji zaprezentowano przykład wykorzystania metody Kano do analizy atrybutów jakości produktu w branży motoryzacyjnej. Dla zderzaka przedniego montowanego w samochodach marki Opel przeanalizowano atrybuty techniczne produktu metodą Kano, a następnie przy pomocy ekstrapolacyjnej analizy czynnikowej dokonano identyfikacji czynników ukrytych. Zastosowanie ekstrapolacyjnej analizy czynnikowej pozwala zorientować się, że w badanym zestawie dwudziestu atrybutów produktu można wyróżnić 5 czynników ukrytych, do których zaliczono: estetykę zderzaka, wytrzymałość na czynniki zewnętrzne, właściwości lakieru, odporność na temperaturę oraz dokładność wykonania.
EN
Terms of ,,qualitology" and engineering of the quality were defined. Trends were pointed of obtaining of the improvement in quality. It has been found out that it is possible to explore textile technological processes, through the analysis of quality transformations using programmable calculation techniques taking advantages from the artificial intelligence, but in particular from the artificial neural networks.
PL
Opracowane modele, dotyczące zarządzania procesami wytwórczymi możliwe do implementacji zarówno w przemyśle, jak i usługach.
EN
The article presents the major trends in quality engineering in its widest possible sense. The author focused on the models for testing and evaluation of quality management systems, quality cost and value analysis. It should be noted that all of them are fit for implementation both in production and services.
16
Content available remote Kierunki rozwoju w inżynierii jakości
PL
W pracy przedstawiono kierunki rozwoju w obszarze szeroko rozumianej dyscypliny naukowej - jaką jest inżynieria jakości. Występujące kierunki przedstawiono na przykładzie możliwych do implementacji w praktyce modeli, dotyczących zarządzania procesami wytwórczymi, a także w odniesieniu do krajowych jednostek administracji publicznej.
EN
The Study reviews development trends of the broadly understood scientific discipline called Quality Engineering. The observed tendencies are described, based on the practical models of managing manufacturing processes, including local public administration focal points.
PL
Metody określania i dokumentowania odpowiedzialności oraz uprawnień pracowników kierujących działaniami wpływającymi na jakość i efektywność pracy. Mogą być one narzędziem realizacji tych punktów norm ISO serii 9000, które traktują o problemach odpowiedzialności i uprawnień kadry kierowniczej.
18
Content available remote Inżynieria jakości dla konsumenta
PL
W opracowaniu przedstawiono nowy, ważny obszar zastosowań metod inżynierii jakości w różnych dziedzinach działalności gospodarczej. Pokazano możliwości i przykłady zastosowań inżynierii jakości w sferach: projektowania, wytwarzania i handlu produktami działalności człowieka.
EN
Paper presents new and important field of quality engineering methods' application in various domains of economic activity. There are presented means and examples of quality engineering's applications in the areas of designing, production and commerce of people's activity products.
PL
W pracy przedstawiono i omówiono "cechę niepewności", jaka ma miejsce przy podejmowaniu kluczowych decyzji w procesie produkcyjnym. Większość zjawisk w procesie zarządzania jakością to zjawiska tylko częściowo określone przez zadane warunki początkowe. Każde przedsięwzięcie empiryczne, doświadczalne w omawianej dziedzinie, należy rozważać jako doświadczenie losowe. Doświadczeniem losowym można określić proces produkcyjny, w którym nie ma pewności co do końcowego rezultatu mimo sprecyzowanych warunków determinujących jego przebieg. Rola czynników losowych w każdym procesie produkcyjnym jest ograniczona do niezbędnego minimum. Jest to jeden z podstawowych celów zapobiegających wadliwości całego procesu.
EN
In this paper "stamp of the uncertainty" has been introduces and discussed, which is by taking a decision in the process of production. The majority of the occurrences in process of quality management, it is the occurrences which are only on beginning condition have been defined. All of the empirically enterprise in the quality management is of fate experience. The fate experiences is the production process, in which is not certainty which is the final result. The star of fate factors in the productions process is bounded. It is one of the basic aim which prevent defectiveness all the process.
PL
W wielu przedmiotach prowadzonych na Wydziale Elektrotechniki i Elektroniki Politechniki Łódzkiej występują elementy inżynierii jakości. Potrzeba kształcenia specjalistów z inżynierii jakości uczyniła, że w Zakładzie Metrologii w ramach programu TEMPUS utworzono Laboratorium Inżynierii Jakości oraz opracowano program kształcenia specjalistów na kursie inżynierskim pod kątem inżynierii jakości. W niniejszym referacie przedstawiono: potrzebę kształcenia, zwięzły opis wybranych przedmiotów oraz uniwersalne laboratorium, które niczym kameleon pozostaje na usługach wielu przedmiotów.
EN
The Quality Engineering degrees are offered in many different disciplines but not all courses seem to include this subject in their programmes. It is one of most important aspects in modern businesses and the markets they serve. For future survival and growth of a company depends on how well the organisation satisfies its customers and this is where quality really matters. It is important in any economy and for world class product design and manufacturing this is an issue that can not be ignored, however, when one examines some of the undergraduate courses, its inclusion is omitted in many. The paper presents the Quality Engineering programme and relevant laboratory to teach Quality Engineering at undergraduate course in Metrology Division of Electrical and Electronic Engineering department of the Technical University of Lodz, Poland.
first rewind previous Strona / 2 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.