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Conceptualization of Industry 4.0 technology for the production of tailor-made furniture – a case study

Łukaszewicz Krzysztof, Urban Wiesław, Krawczyk-Dembicka Elżbieta

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2023

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Vol. 71, nr 1

art. no. e144587

EN

Production is becoming more customer-focused as it departs from delivering standardized mass products to market segments, and the emerging Industry 4.0 technologies render this much easier than before. These technologies enable two-way information exchange with customers throughout all the steps of product development, particularly in terms of tailor-made products. This study aims at presenting proposals of implementing Industry 4.0 technologies into the process of tailored products, where the product is customized for the customer from the start and where adjustments are also made at the manufacturing stage. The study also aims to build a concept of intensification of customer contact and to improve the process flow by applying Industry 4.0 technologies. The study’s subject is tailor-made furniture production, with individually designed products that are manufactured and installed at a customer’s facilities. The company in the study operates on a small scale. The study employs a case study methodology that shows how the process can be improved in terms of real-time effective customer contact and process flow. The huge potential of 3D visualization as well as augmented and virtual reality technologies are also demonstrated. The study concludes with several directions for further development of existing technology solutions.

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The study of co-design in the area of manufacturing

Krawczyk-Dembicka Elżbieta, Urban Wiesław, Łukaszewicz Krzysztof

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2022

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Vol. 70, nr 6

art. no. e143930

EN

The study is devoted to the co-design concept which is not widely studied in the manufacturing industry area. The concept is just practiced but not theorized and not investigated enough, although it greatly deserves it because of its perspectives and advantages potential in the technology changes era. This study aims to present an investigation of literature views on co-design in manufacturing operations, with the comparison to service literature where it is widely discussed; the study also aims at in-depth investigations of co-design occurrences in two industrial cases of product development to understand their nature and circumstances. In addition, the influence of Industry 4.0 technologies and their coexistence with the concept of sustainability will also be strongly taken into consideration in the empirical part of this study. The process of the individualized production of the industrial line for animal food packing and cardboard packaging production has been studied according to case study methodology. The study demonstrates that co-design could contribute to bettering the process of new product development and achieving products more accurate for the final users’ requirements. It goes hand in hand with one of the core ideas of sustainability, which is to have long-lasting products, exploited by the customer with a high level of satisfaction for a longer time. The study implies that the technologies of Industry 4.0 could support wider and more effective co-design exploitation by manufacturing entities.

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Towards a Self-Service Approach in the Printing Industry. An Investigation of State of the Art Technologies Along with Industry 4.0 Changes

Urban Wiesław, Łukaszewicz Krzysztof

Multidisciplinary Aspects of Production Engineering

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2021

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Vol. 4, Iss. 1

232--244

EN

It is commonly believed that the current economic state of many countries is at the stage of the fourth industrial revolution. The changes resulting from this revolution are affecting all sectors of the economy, including the printing sector. The aim of this article is to analyse the state of the art technology in sheetfed printing and then to identify the challenges for further changes in the technology of this type of printing as well as technological and organisational changes in the processes of preparation and realisation of printing products. The article uses case studies of selected technologies offered by key technology suppliers in this area and case studies of selected business entities – manufacturers of printing products. The research approach adopted in this article also takes conceptual work into account. It was found that the observed changes in the printing industry are consistent with the assumptions of the Industry 4.0 concept in the aspect of the digitisation and mass personalisation of products, which leads to the thesis that in the future personalised digital printing ordered through self-service will play a dominant role.

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Testing virtual prototype of a new product in two simulation environments

Łukaszewicz Krzysztof

Management and Production Engineering Review

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2019

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Vol. 10, No. 3

124–-135

EN

This paper is a case study conducted to present an approach to the process of designing new products using virtual prototyping. During the ﬁrst stage of research a digital geometric model of the vehicle was created. Secondly it underwent a series of tests utilising the multibody system method in order to determine the forces and displacements in selected construction nodes of the vehicle during its movement on an uneven surface. In consequence the most dangerous case of loads was identiﬁed. The obtained results were used to conduct detailed strength testing of the bicycle frame and changes its geometry. For the purposes of this case study two FEA software environments (Inventor and SolidWorks) were used. It has been conﬁrmed that using method allows to implement the process of creating a new product more eﬀectively as well as to assess the inﬂuence of the conditions of its usage more eﬃciently. It was stated that using of diﬀerent software environments increases the complexity of the technical process of production preparation but at the same time increases the certainty of prototype testing. The presented example of simulation calculations made for the bicycle can be considered as a useful method for calculating other prototypes with high complexity of construction due to its systematized character of chosen conditions and testing procedure. It allows to verify the correctness of construction, functionality and perform many analyses, which can contribute to the elimination of possible errors as early as at the construction stage.

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Design of the vibrostabilisation stand for reducing residual stresses in discs used in the construction of multi-plate clutches and brakes

Jaroszewicz Jerzy, Łukaszewicz Krzysztof, Antonyuk Vladimir

Acta Mechanica et Automatica

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2019

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Vol. 13, no. 1

37--44

EN

Heavy-duty, oil-cooled brake discs (MMOTs) are often used in heavy-duty brake systems manufactured by companies such as Caterpilar, Clark, Komatsu and Liebherr. These discs are usually made of special steels, and in most cases, the flatness of the working surfaces should not exceed 0.15–0.30 mm. Although the technological processes of friction disc production include several stages of heat treatment and grinding, the required accuracy is not achieved in some cases. In addition, the remaining residual stresses lead to the deformation of the discs during their lifetime. In production practice, three methods are used to reduce residual stresses: thermo-fixing, dynamic stabilisation and vibratory stabilisation consisting in bringing discs to transverse resonance vibrations and maintaining resonance until significant stress reduction. The article proposes a method of stabilising the discs using the resonance phenomenon at the first few frequencies. In this article, Cauchy’s function method and characteristic series method are used to develop solution value problem for clamped circular plates with discrete inclusions as concentrated masses and springs. Calculation methods for quick estimation of the own frequency of discs with additional ring mass enabling the use of low power vibration inductors are presented. The use of a special membrane and a pneumatic cushion in the construction of the stand allows to induce vibrations of higher frequencies.