Baza Publikacji Pracowników Politechniki Lubelskiej

Status:
Autorzy:	Bulzak Tomasz, Pater Zbigniew, Tomczak Janusz, Wójcik Łukasz
Dyscypliny:
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Rok wydania:	2020
Wersja dokumentu:	Drukowana \| Elektroniczna
Język:	angielski
Wolumen/Tom:	151
Numer artykułu:	106305
Strony:	1 - 9
Impact Factor:	4,765
Web of Science® Times Cited:	6
Scopus® Cytowania:	7
Bazy:	Web of Science \| Scopus
Efekt badań statutowych	NIE
Materiał konferencyjny:	NIE
Publikacja OA:	NIE
Abstrakty:	angielski
	Balls for ball mills can be produced by die forging, rolling and casting methods. The rolling of balls can be realized as skew or cross rolling. This paper describes a new method for producing balls by cross wedge rolling combined with upsetting. Special emphasis is put on failure modes occurring in this process. Typical defects in balls produced by the new technique are described. Causes of these defects are discussed, and methods for their prevention are proposed. Both overfill and underfill are analyzed. Emphasis is put on ball surface defects such as scratches and sharp edges, and the problem of internal cracking in balls is discussed. The problem of correct separation of balls is examined. Effects of the rolling temperature on the rolling process and quenching of balls are investigated. Finally, abrasive wear of tools in the cross wedge rolling of balls is described.

On some problems of producing grinding media by cross wedge rolling combined with upsetting