- Tytuł:
- The Repair of Foundry Defects in Steel Castings Using Welding Technology
- Autorzy:
-
Mičian, M.
Koňár, R.
Hlavatý, I.
Winczek, J.
Gucwa, M. - Powiązania:
- https://bibliotekanauki.pl/articles/380199.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
steel casting
repair by welding
mechanical testing
approval of welding procedure
odlew staliwny
spawanie naprawcze
badania mechaniczne - Opis:
- Use of welding technology for the repair of steel castings is particularly common in two areas. These include weld surfacing of protrusions that remained incomplete after casting, or filling the surface defects (cavities). These defects are more common for steel casting than for graphite cast iron, due to the lower fluidity of steel. This article describes a suitable technological process of repairing the defects on the casting using the welding technology. A specimen produced for this purpose was prepared by carving a groove into a cast steel plate 20 GL, which was then filled with a weld metal using MAG (135) technology. The following evaluation of the basic characteristics of the repaired site point to the suitability of the selected technological parameters of the repair procedure. Metallographic evaluation was carried out, further evaluation of mechanical properties by tensile test, bend test and Vickers hardness test. The proposed methodology for the evaluation repair of foundry defects in steel castings also meets the requirements for the approval of welding procedures in accordance with the relevant valid legislation.
- Źródło:
-
Archives of Foundry Engineering; 2018, 18, 2; 177-180
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł