Search Results - "Gronostajski, Zbigniew"

The effect of the strain rate on the stress- strain curve and microstructure of AHSS by Gronostajski, Zbigniew, Niechajowicz, Adam, Kuziak, Roman, Krawczyk, Jakub, Polak, Sławomir

“…This paper presents investigations of the structural changes and flow stress of advanced high-strength steels (AHSS) subject to deformation at high strain…”
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Progressive crushing as a new mechanism of energy absorption. The crushing study of magnesium alloy crash-boxes by Kaczyński, Paweł, Gronostajski, Zbigniew, Polak, Sławomir

“…•During the crushing of empty crash boxes, there was no influence of the strain rate on the level of energy absorbed. Strain rate influence was noticed during…”
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Experimental and numerical determination of the temperature of TWIP steel during dynamic tensile testing by Jasiak, Katarzyna, Gronostajski, Zbigniew, Jabłońska, Magdalena Barbara

“…One of the most important factor affecting properties of TWIP steels is the heat generated from plastic work during deformation. As the significant temperature…”
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Warm sheet metal forming of energy-absorbing elements made 7075 aluminum alloy in the hardened state T6 by Jaśkiewicz, Karol, Skwarski, Mateusz, Kaczyński, Paweł, Gronostajski, Zbigniew, Polak, Sławomir, Trzpis, Przemysław

“…The article covers experimental research on the forming of products made of 7075 aluminum alloy. This aluminum alloy grade is characterized by high strength,…”
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Methods for determination of low-cycle properties from monotonic tensile tests of 1.2344 steel applied for hot forging dies by Wollmann, Joanna, Dolny, Andrzej, Kaszuba, Marcin, Gronostajski, Zbigniew, Gude, Maik

“…Selected methods for determining fatigue life in the strain-life approach, described by the Manson-Coffin-Basquin (MCB) equation based on results of static…”
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The influence of the heat generation during deformation on the mechanical properties and microstructure of the selected TWIP steels by Jabłońska, Magdalena Barbara, Jasiak, Katarzyna, Kowalczyk, Karolina, Skwarski, Mateusz, Rodak, Kinga, Gronostajski, Zbigniew

“…The TWIP (Twinning Induced Plasticity) steels are one of the most promising materials in reducing the weight of vehicles. Despite a lot of research on TWIP…”
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Application of selected surface engineering methods to improve the durability of tools used in precision forging by Hawryluk, Marek, Gronostajski, Zbigniew, Kaszuba, Marcin, Polak, Sławomir, Widomski, Paweł, Ziemba, Jacek, Smolik, Jerzy

“…The article presents a detailed analysis of the degradation phenomena and mechanisms of selected forging punches made of UNIMAX tool steel. Analyzed punches…”
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Computer system for identification of tool wear model in hot forging by Wilkus, Marek, Rauch, Łukasz, Gronostajski, Zbigniew, Polak, Sławomir, Pietrzyk, Maciej

“…The aim of the research was to create a methodology that will enable effective and reliable prediction of the tool wear. The idea of the hybrid model, which…”
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Advanced Heat Treatment of Pearlitic Rail Steel by Jabłońska, Magdalena, Lewandowski, Filip, Chmiela, Bartosz, Gronostajski, Zbigniew

“…The aim of this research is a systematic investigation of heat treatments of 60E1 profile rails made of steel R350HT, which would ensure the properties…”
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The failure mechanisms of hot forging dies by Gronostajski, Zbigniew, Kaszuba, Marcin, Polak, Sławomir, Zwierzchowski, Maciej, Niechajowicz, Adam, Hawryluk, Marek

“…This paper describes the phenomena taking place on the surface of the dies used for hot forging. Because of this paper’s limited space only changes in the tool…”
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Influence of the grade of hot work tool steels and its microstructural features on the durability of punches used in the closed die precision forging of valve forgings made of nickel-chrome steel by Hawryluk, Marek, Lachowicz, Marzena, Zwierzchowski, Maciej, Janik, Marta, Gronostajski, Zbigniew, Filipiak, Jarosław

“…The work concerns research related to the assessment of the influence of the impact of the steel grade used for forging punches in terms of the durability of…”
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Preliminary studies of increasing the durability of forging tools subjected to various variants of surface treatment used in the hot die forging process of producing valve forgings by Hawryluk, Marek, Lachowicz, Marzena, Janik, Marta, Ziemba, Jacek, Gronostajski, Zbigniew

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Analysis of wear mechanisms of hot forging tools protected with hybrid layers performed by nitriding and PVD coatings deposition by Gronostajski, Zbigniew, Kaszuba, Marcin, Widomski, Paweł, Smolik, Jerzy, Ziemba, Jacek, Hawryluk, Marek

“…This article presents the results of research on hybrid layers used to increase the durability of hot forging tools. The aim of the work is to uniformly…”
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Metallographic Evaluation of Increased Susceptibility to Intermediate Embrittlement of Engine Valve Forgings Made of NCF 3015 High Nickel and Chromium Steel by Lachowicz, Marzena M., Zwierzchowski, Maciej, Hawryluk, Marek, Gronostajski, Zbigniew, Janik, Marta

“…This paper focused on determining the increased tendency of cracking after the die forging process of high nickel and chromium steel. The increase in carbon…”
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An integrated vision control system for the evaluation of the shape-dimensional accuracy and quality of valve forgings used in motor truck engines by Hawryluk, Marek, Gronostajski, Zbigniew, Jabłoński, Paweł, Janik, Marta, Suliga, Maciej

“…[Display omitted] •A proposal of a useful measurement method for three key geometric features of valve forging.•The accuracy and reliability of system is not…”
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Microstructure and Dynamic Mechanical Behavior of Thermomechanically Rolled 3Mn–Al and 5Mn–Al Sheet Steels by Morawiec, Mateusz, Grajcar, Adam, Krawczyk, Jakub, Gronostajski, Zbigniew, Petrov, Roumen H.

“…The comparison of the dynamic mechanical behavior and microstructure of two medium manganese sheet steels (3Mn–Al and 5Mn–Al) alloyed with aluminum is aimed…”
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Possibilities of Increasing the Durability of Punches Used in the Forging Process in Closed Dies of Valve Forgings by Using Alternative Materials from Tool Steels and Sintered Carbides by Hawryluk, Marek, Janik, Marta, Gronostajski, Zbigniew, Barełkowki, Artur, Zwierzchowski, Maciej, Lachowicz, Marzena, Ziemba, Jacek, Marzec, Jan

“…This study refers to an analysis of the durability of forging tools applied in the second operation of producing a valve forging from the chromium-nickel…”
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W-Temper forming of B-pillar from 7075 aluminum alloy by Gronostajski, Zbigniew, Jaśkiewicz, Karol, Kaczyński, Paweł, Skwarski, Mateusz, Polak, Sławomir, Krawczyk, Jakub, Chorzępa, Władysław, Trzpis, Przemysław

“…The work concerns the possibility of producing B-pillars from the 7075 aluminum alloy. First, extensive material tests were carried out. The as-delivered…”
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Influence of the application of a PN+Cr/CrN hybrid layer on the improvement of the lifetime of hot forging tools by Hawryluk, Marek, Gronostajski, Zbigniew, Widomski, Paweł, Kaszuba, Marcin, Ziemba, Jacek, Smolik, Jerzy

“…This article presents the results of field tests performed on forging tools in a selected lid hot forging process. The aim of the studies was to increase the…”
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Support Possibilities for 3D Scanning of Forging Tools with Deep and Slim Impressions for an Evaluation of Wear by Means of Replication Methods by Hawryluk, Marek, Gronostajski, Zbigniew, Ziemba, Jacek, Janik, Marta, Górski, Piotr, Lisowski, Miłosz

“…This article discusses the problems related to the use of non-contact 3D scanning techniques and their support by means of replication methods for the analysis…”
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