<abstract xmlns="http://www.w3.org/1999/xhtml">New challenges for the Aluminium alloys used for the production of castings for automotive engine components result from an evolutionary trend of internal combustion engines towards higher specific power output. Cylinder heads, in particular, have to withstand higher operating temperature and stress levels. Present work describes quality control of microstructure (Si-morphologhy and Si-size) and mechanical properties (UTS, elongation, Brinell hardness) of cylinder head casting as effect of different T6 heat treatment (solution heat treatment time - 2, 3, 4, 5, 6, 7 hours). The data obtained from this study will be used to improve process control, and to help the selection of heat treatment of the casting for future products.</abstract>

Quality control of cylinder head casting

<abstract xmlns="http://www.w3.org/1999/xhtml">Adhesive bonding is one of the simplest and most common methods used for joining materials. It is applied in both production and repair works. The most commonly used adhesives are cyanoacrylates, due to the possibility of combining various materials and short curing time. One of the ways to assess the quality of the adhesive used is testing the shear strength of bonded joints. Three adhesives commonly available on the Polish market, from various manufacturers and with different prices per gram of product were tested. The polymer materials bonded were poly(methyl methacrylate) and polycabonate, since they are broadly used in the automotive industry and household equipment. The study revealed significant differences in bonding strength, reaching as much as 38% The adhesive’s price was not commensurate with the quality of the product tested in all cases.</abstract>

Evaluation of the quality of cyanoacrylate adhesive joints using the example of poly(methyl methacrylate) and polycarbonate

<abstract xmlns="http://www.w3.org/1999/xhtml">The article raises the issue of risk assessment and its impact on the quality and safety of work. During the assessment of the turning lathe position additional components associated with the jobs personalization were taken into account. Paragraph 2 item 7 of the Regulation of the Minister of Laborr and Social Policy of 26 September 1997 on general safety regulations defines occupational risk as the likelihood of an adverse event. The authors drew attention to the reality of the accident, which sometimes depends on the predisposition of the employee. It turns out that a correct estimation of the probability of occurrence of the accident to be able to react in a timely way seems extremely important.. This parameter will be assessed more accurately if we take into account a number of additional components resulting from the characteristics of the employee. The results of the personalized assessment of risk may allow appropriate planning of corrective and preventive actions.</abstract>

Additional components of risk assessment and their impact on the probability parameter

<abstract xmlns="http://www.w3.org/1999/xhtml">Austenitic stainless steels are materials, that are widely used in various fields of industry, architecture and biomedicine. Their specific composition of alloying elements has got influence on their deformation behavior. The main goal of this study was evaluation of magnetic properties of selected steels, caused by plastic deformation. The samples were heat treated in different intervals of temperature before measuring. Then the magnetic properties were measured on device designed for measuring of magnetism. From tested specimens, only AISI 304 confirmed effect of plastic deformation on the magnetic properties. Magnetic properties changed with increasing temperature.</abstract>

Department of Material Engineering, Faculty of Mechanical Engineering

Department of Physics, Faculty of Electrical Engineering

Effect of plastic deformation on the magnetic properties of selected austenitic stainless steels

<abstract xmlns="http://www.w3.org/1999/xhtml">The paper presents a case study of the practical use of Deming cycle in a manufacturing company, from the plastics processing industry, from the sector of small and medium-sized enterprises. The paper is a study of literature in the field of continuous improvement and characterized by a cycle of continuous improvement, called the Deming cycle, or PDCA cycle. This cycle was used as a solution to quality problems which occurred during production of photo frames: discolorations and scorches on the surface of the frame. When measures were introduced to reduce the number of nonconformities, a decrease by more than 60% was observed.</abstract>

PDCA cycle as a part of continuous improvement in the production company - a case study

<abstract xmlns="http://www.w3.org/1999/xhtml">The article is devoted to the overall view of experimental research of reinforced concrete beams with the simultaneous influence of the corrosion environment and loading. The tests have been carried out upon the reinforced concrete specimens considering the corrosion in the acid environment, namely 10 % H2SO4 that have been taken as a model of the aggressive environment. The beams are with span equalling to 1,9m with different series of tensile armature, concrete compressive strength and different length of impact of corrosion (continuous and local). The influence of simultaneous action of the aggressive environment and loading on strength of reinforced-concrete beams has been described. For a detailed study of the effect of individual components there was suggested additional experimental modelling of the only tensile armature damage without concrete damage. It will investigate the influence of this factor irrespective of the concrete.</abstract>

The influence of the damaged reinforcing bars on the stress-strain state of the rein-forced concrete beams

<abstract xmlns="http://www.w3.org/1999/xhtml">Rational and efficient use of thermal energy in recent years has resulted in significant changes in the heating system as well as technological progress. In order to design a heating system properly and exploit it correctly, an in-depth understanding of the hydraulic issues is necessary. Application of automatic control system in various sectors of heating network has resulted in a more dynamic and efficient work of the whole system. For proper operation of a thermal system it is also necessary to compile a correct heat balance and a regulation graph that allows to determine the optimal mass and parameters of heat medium. The article discusses the problems of supplying heat process, types of thermal systems and selected problems of hydraulic issues that occur in the heating networks.</abstract>

Selected aspects of hydraulic issues in heating systems

<abstract xmlns="http://www.w3.org/1999/xhtml">The following article discusses the problem of durability of girders made of structural steel S355 affected by corrosion. It presents the Polish procedure for calculating the time between failures of steel elements of bridge and durability factors necessary to estimate the impact of corrosion on the durability of steel road bridges. According to the presented procedure, two real bridges of steel structure were analysed. The bridges selected for analysis are located in extremely different corrosive environments in Poland. This bridges were built in different areas of the country which are characterized by different (mountain, urban) aggressiveness of the environment. The objects of the analysis differ in terms of corrosion type occurring on the bearing system. Their age is also different which has a significant impact on their safety.The results obtained allowed to determine the time when, with the existing corrosion damage, failures may occur.</abstract>

The Faculty of Civil Engineering, Department of Organization and Technology Building

Faculty of Civil Engineering, Department of Structures and Bridges

Influence of the environment aggressiveness on durability of girders made of S355 steel in Poland

<abstract xmlns="http://www.w3.org/1999/xhtml">The present contribution deals with the influence of tribological conditions on coating quality. Two types of coatings were selected for analysis WC-WB-CO and WC-FeCrAl, to advise that a new type of coating - carbide green. These coatings were applied to the base material AISI 316L of technology HVOF – High velocity oxygen fuel. The aim of the experimental study was to determine the quality coatings and its resistance to abrasive wear, depending on the number of thermal cycles. It was evaluated hardness, thickness, the resistance to abrasive wear in free abrasives and firmly bonded abrasives. Results of experiments showed a higher resistance of the coating WC-Co-WB.</abstract>

Effect of tribological conditions for properties thermal spraying

<abstract xmlns="http://www.w3.org/1999/xhtml">The article presents results of research concerning identification of organization schemes and management processes that make a small construction company function efficiently and hold against other entities in local markets. It was estimated to what extent the classic principles for organization and management are realized in a small construction company. Basic for that evaluation were the Toyota management principles and the HR organization principles as gathered and quoted by Rowiński. The research was conducted with the guided interview method, supplemented by CAWI (Computer-Assisted Web Interview) survey. Based on the information gathered the characteristics of organization and management of small construction companies active in the business of finishing works were described. The most important elements presented were the owner-employee relations, scope of activities performed personally by the owner, quality assurance methods for works, scope of cooperation with other entities, mode of customer acquisition and ways in which new technologies are adopted. It was found that there is large coincidence between organizational and management principles applied in researched companies, and the rules for the Toyota manufacturing processes, slightly lower coincidence was found in case of analysis of the rules quoted by Rowiński. The research has shown the large universality of the rules found in literature – these are largely accomplished, even without owners and employees having the knowledge about their exact reading.</abstract>

Construction-fitting process organization and management in a small business

AHEAD OF PRINT

Volume 30 (2024): Issue 1 (March 2024)

Volume 29 (2023): Issue 4 (December 2023)

Volume 29 (2023): Issue 3 (September 2023)

Volume 29 (2023): Issue 2 (June 2023)

Volume 29 (2023): Issue 1 (March 2023)

Volume 28 (2022): Issue 4 (December 2022)

Volume 28 (2022): Issue 3 (September 2022)

Volume 28 (2022): Issue 2 (June 2022)

Volume 28 (2022): Issue 1 (March 2022)

Volume 27 (2021): Issue 4 (December 2021)

Volume 27 (2021): Issue 3 (September 2021)

Volume 27 (2021): Issue 2 (June 2021)

Volume 27 (2021): Issue 1 (March 2021)

Volume 26 (2020): Issue 4 (December 2020)

Volume 26 (2020): Issue 3 (September 2020)

Volume 26 (2020): Issue 2 (June 2020)

Volume 26 (2020): Issue 1 (March 2020)

Volume 25 (2019): Issue 25 (December 2019)

Volume 24 (2019): Issue 24 (September 2019)

Volume 23 (2019): Issue 23 (June 2019)

Volume 22 (2019): Issue 22 (March 2019)

Volume 21 (2018): Issue 21 (December 2018)

Volume 20 (2018): Issue 20 (September 2018)

Volume 19 (2018): Issue 19 (June 2018)

Volume 18 (2018): Issue 18 (March 2018)

Volume 17 (2017): Issue 17 (December 2017)

Volume 16 (2017): Issue 16 (September 2017)

Volume 15 (2017): Issue 15 (June 2017)

Volume 14 (2017): Issue 14 (March 2017)

Production Engineering Archives

 The Journal of "Production Engineering Archives" has been published by the Publishing Office of Quality and Production Managers Association since 2013 as a quarterly. It is an international peer-reviewed, open access journal published four times per year only in the English language. It is published both in printed and electronic versions.  The works papers which are published in the PEA Journal are devoted to production engineering, quality of materials and technology. The PEA journal accepts review articles, original scientific articles, short communications, case studies. All articles published in Production Engineering Archives are permanently free for everyone to read and download. The journal is on the list of scientific journals of the Polish Ministry of Science and Higher Education. Presently (since 2013) each paper is awarded with 5 points (the list B, pos. 2039).   The Journal "Production Engineering Archives" is the international platform of the scientific exchange within the theory of the production engineering systems organizing, management and functioning theory. The area of interest focuses on the following systems: production, quality, total productive maintenance, materials engineering, environmental protection, occupational health and safety, human resources management including elements of innovation and continuous improvement. Published works include technical, economic and social issues. The articles are published in English. Each manuscript submitted for publication in the PEA journal is reviewed (double blind peer-review). All works published in PEA are available on the Journal's website. The members of the Scientific Committee are eminent specialists in the field of production engineering, materials engineering, quality and safety management, human resources, who are working in Poland and abroad. ScopeSubject areas, suitable for publication, include the following fields:    Production engineering  Quality and production management  Improvement of production processes  Safety system  Quality and improvement in materials engineering  TPM (Total Productive Maintenance)  Advanced technology  Intellectual potential management in production engineering   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 