Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Z Gronostajski"'
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 3, Pp 1215-1229 (2024)
The article presents the results of a complex analysis referring to the possibilities of applying different types of construction of forging dies used on a hydraulic hammer Lasco HO-U 160 in order to select the optimal solution in the aspect of obtai
Externí odkaz:
https://doaj.org/article/8e681b8b7956428ba5adb3a32dccf5ae
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 68, Iss No 2, Pp 711-722 (2023)
The study discusses the issues of low durability of dies used in the first operation of producing a valve type forging from high nickel steel assigned for the application in motor truck engines. The analyzed process of manufacturing the exhaust valve
Externí odkaz:
https://doaj.org/article/b4d7736006844c57b476f2bda2c2e6cd
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 67, Iss No 4, Pp 1395-1410 (2022)
Tests were performed on example tools applied in hot die forging processes. After withdrawal from service due to excessive wear, these tools can be regenerated for re-use through machining and hardfacing. First, analysis of worn tools was carried out
Externí odkaz:
https://doaj.org/article/871d86fa54e849db9fe0bf36395ed5f6
Autor:
K. Jaśkiewicz, M. Skwarski, S. Polak, Z. Gronostajski, J. Krawczyk, P. Kaczyński, W. Chorzępa
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 65, Iss No 2, Pp 697-705 (2020)
The paper covers the research on the process of solutionizing of 7075 aluminum alloy in cold tools during the stamping of a high-strength structural element (B-pillar’s base). For technological reasons, in order to obtain high strength parameters o
Externí odkaz:
https://doaj.org/article/4f3d9fc4d2684c4aaf4d253bf68be0f2
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 65, Iss No 2, Pp 685-696 (2020)
The paper presents a prototype semi-industrial cooling line developed by the authors, which makes it possible to design a thermal treatment of forgings with the use of the forging heat, together with exemplary test results for forgings forked type. T
Externí odkaz:
https://doaj.org/article/bb81d5839a86419ba4823adf9c042bf5
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 65, Iss No 1, Pp 193-200 (2020)
This article discusses the results of studies using the developed artificial neural networks in the analysis of the occurrence of the four main mechanisms destroying the selected forging tools subjected to five different surface treatment variants (n
Externí odkaz:
https://doaj.org/article/f7d48ae1b5a04f479edfbec25c11fa8a
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 64, Iss No 4, Pp 1421-1432 (2019)
The article presents an analysis of the multi-operation hot die forging process, performed on a press, of producing a lever forging used in the motorcycles of a renowned producer by means of numerical simulations. The investigations were carried out
Externí odkaz:
https://doaj.org/article/f1734c2d812c4a109a70effae63c8d2d
Autor:
M. Hawryluk, Z. Gronostajski, M. Kaszuba, J. Krawczyk, P. Widomski, J. Ziemba, M. Zwierzchowski, J. Janik
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 63, Iss No 4, Pp 1963-1974 (2018)
The study presents a durability analysis of dies used in the first operation of producing a valve-type forging from high nickel steel assigned to be applied in motor truck engines. The analyzed process of producing exhaust valves is realized in the f
Externí odkaz:
https://doaj.org/article/e31f728a05484e41ab7d6b132cb94fba
Autor:
Z. Gronostajski, M. Kaszuba, M. Hawryluk, M. Marciniak, M. Zwierzchowski, A. Mazurkiewicz, J. Smolik
Publikováno v:
Metalurgija, Vol 54, Iss 4, Pp 687-690 (2015)
This paper deals with problems relating to the durability of the dies used for the hot forging of spur gears. The results of industrial tests carried out on dies with a hybrid layer (a nitrided layer (PN) + physical vapor deposition (PVD) coating) ap
Externí odkaz:
https://doaj.org/article/fed1062cfc9548a5ae066ec21e656805
Publikováno v:
European Heart Journal. 43
Background Rotational atherectomy is a highly effective technique to facilitate percutaneous intervention on highly calcified coronary lesions. In some cases, despite numerous passages of the burr, successful crossing of the lesion is impossible. Emp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::031b4ea69f153acb5a81dc95ab794478
https://doi.org/10.1093/eurheartj/ehac544.2058
https://doi.org/10.1093/eurheartj/ehac544.2058