- Tytuł:
- Analiza i opracowanie efektywnego sposobu wstępnego nagrzewania narzędzi do kucia na gorąco
- Autorzy:
-
Widomski, P.
Skwarski, M.
Rychlik, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1189982.pdf
- Data publikacji:
- 2017
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
narzędzia kuźnicze
matryca kuźnicza
wkładka matrycowa
materiał wsadowy
preheating
forging die
tempering
billet - Opis:
- This article contains an overview of available preheating methods which are commonly used in hot forging processes. Then a comprehensive analysis of the temperature changes that occur on the surface and directly below the surface of the forging die was carried out during the preheating process. The temperature measurement was performed with fast thermal camera and a thermocouple inserted inside the tool. The temperature was measured in traditional preheating process, and its value after preheating was about 200ºC, which can be acceptable, however this process was improper, because of possibility of tempering surface layer of forging tool. That’s why new method of preheating tools in contact with heated billets was developed and detailed instructions for time and layout of billets were prepared. The tool temperature was measured also after application of new method presented in this manuscript, and it reached over 200ºC after two preheating cycles. After three cycles of preheating also good results obtained because temperature in surface layer was about 260ºC. In conclusion, method proposed by authors obtained good result, is quite efficient and prevents from tempering of forging tools. Finally, two pre-heating instructions were prepared, for the Massey 2500T press and the Massey 1300T press, which are attached at the end of the manuscript.
- Źródło:
-
Interdisciplinary Journal of Engineering Sciences; 2017, 5, 1; 27--32
2300-5874 - Pojawia się w:
- Interdisciplinary Journal of Engineering Sciences
- Dostawca treści:
- Biblioteka Nauki
Artykuł