Autor: Gołębski, Rafał - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The use of new technology to improve the quality of production on a CNC machine tool
Autorzy:: Gołębski, Rafał
Sikora, Piotr
Gnatowski, Adam
Powiązania:: https://bibliotekanauki.pl/articles/88568.pdf
Data publikacji:: 2019
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: CNC machine tool
production
quality
technology
obrabiarka CNC
produkcja
jakość
technologia
Opis:: The article presents an analysis of the modification of the production process on a CNC machine tool. The process was modified by using a new deep hole drilling procedure. As a consequence, an improvement in the quality of manufactured elements in series production has been achieved. The applications were supported by metrological analysis of the product.
Źródło:: System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 583-590
2657-5450
Pojawia się w:: System Safety : Human - Technical Facility - Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effect of Processing Conditions on Selected Properties of Polyamide 6 Composites Filled by Modified Bentonite
Autorzy:: Gnatowski, Adam
Gołębski, Rafał
Stachowiak, Krystian
Powiązania:: https://bibliotekanauki.pl/articles/2049714.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: polyamide 6
composites
bentonite
structure
thermomechanical properties
Opis:: The aim of this study was to present the results of the examinations of the structure and thermomechanical properties of PA6/NanoBent composite. NanoBent composites composed of minerals from the smectite group (mainly montmorillonite) were used for modification of polyamide 6. PA6 composite with content of 1, 3, 5% of NanoBent was prepared in a Theysohn TSK 75-N twin screw extruder. The samples were prepared using the injection technology by means of a Krauss-Maffei KM65-160 C1 injection molding machine. The samples of composites obtained at different injection temperatures and injection mold temperatures were used for the examinations. Degree of crystallinity was examined using the DSC method whereas the material structure was examined with an optical microscope. DSC studies showed a reduction in the value of the degree of crystallinity with the increasing content of nanofiller in the polymer material. The narrowing of the peak was recorded in the DSC thermograms for nanocomposites with greater percentage of the nanofiller. Dynamical properties of polyamide 6 nanocomposite were also determined in relation to temperature and frequency. The samples were bended at frequencies of 1 Hz and 10 Hz over the temperature range from –100°C to 180°C and the heating rate of 2K/min. A significant increase in storage modulus was observed for PA6 samples with the content of 5% of NanoBent obtained at the injection temperature of 270°C and mold temperature of 70°C. smaller size of spherulites and arrangement of structural elements in clusters along the line of polymeric material flow in the mold cavity at higher contents of NanoBent were observed during structural examinations of the composites.
Źródło:: Archives of Metallurgy and Materials; 2021, 66, 2; 483-487
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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