In this work, the influence of a high power diode laser surface treatment on the structure and properties of aluminium alloy has been determined. The aim of this study was to improve the mechanical and tribological properties of the surface layer of the aluminium alloy by simultaneously melting and feeding tungsten carbide particles into the molten pool. During the process was used high-power diode laser HPDL. In order to remelt the aluminium alloy surface the HPDL laser of 1.8, 2.0 and 2.2 kW laser beam power has been used. The linear laser scan rate of the beam was set 0.5 cm/s. In order to protect the liquid metal during laser treatment was used argon. As a base material was used aluminium alloy ENAC-AlMg9. To improve the surface mechanical and wear properties of the applied aluminium alloy was used biphasic tungsten carbide WC/W2C. The size of alloying powder was in the range 110-210 µm. The ceramic powder was introduced in the remelting zone by a gravity feeder at a constant rate of 8 g/m.

The aim of this article is to show the use of the analysis of the failure causes and effects as a prevention tool in controlling the quality of a given production process in the company. The scope of the work covers an analysis of a selected process, definition of inconsistencies present in this process, and then the FMEA analysis. In the production company one should implement thinking and actions based on the so-called ‘quality loop’ – it is an interdependence model of the undertaken actions which affect the quality shaping. It is carried out from the possibility for identifying a customer’s requirements through a project, production process, up to the assessment of effective capability for meeting the defined requirements. The application of such an approach enables to take the actions improving the operation of quality management in a systemic way.

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AbstractInternal logistics is a key element of a production process as it specifies product quality, timeliness and value of orders. The purpose of the research was to determine the amount of non-compliance in the selected production process caused by internal logistics operations. The analysis covers both the quantity and type of non-compliance as well as the cost of non-compliance. One of the basic quality management tools was used in the research - Parteo-Lorenz analysis. An attempt was made to identify potential causes of non-compliance. The significant impact of non-compliance arising in internal logistics operations in production costs was pointed out.

The purpose of the paper is to determine the degree of Polish companies’ maturity applying for Quality of the Year certification based on the EFQM excellence model. The study was conducted using a questionnaire (CAWI – computer assisted web interview). Company to get certified Quality of the Year had to get in the field of self-assessment carried out by the EFQM model at least 56%. Results and its analysis showed that among the 49 analyzed large companies seeking Quality of the Year certification only 3 achieved a value of 80% and above. Among the 10 companies selected for analysis only 3 has taken improvement actions. Based on the study carried out, the authors demonstrated that the analyzed companies that have been certified Quality of the Year are mature and conscious of quality, continuously improve, and apply modern techniques (traditional quality management tools, new quality management tools, quality management methods). The factors that determine the maturity and the awareness of the company in terms of quality are the elements included in the EFQM model (1. Leadership. 2. Vision, strategy, policy. 3. Human resources management. 4. Resource Management. 5. Process Management. 6. Customer satisfaction. 7. Employee satisfaction. 8. Cooperation with the environment. 9. Achievements companies in relation to the goals), as well as the awareness and the ability to use modern techniques.