Open AccessMachining of bearing trunnions of rolls by heavy lathes in conditions of repair production
Author(s) -
Viktor Vodzianskiy,
Viktor Artiukh,
Sergey Kargin,
Elena Soloveva
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/918/1/012129
Subject(s) - machining , grinding , bearing (navigation) , residual stress , mechanical engineering , surface roughness , surface finish , machine tool , production (economics) , manufacturing engineering , engineering , computer science , metallurgy , materials science , composite material , artificial intelligence , economics , macroeconomics
Technology has been developed, tested on plants and theoretically justified for repair of precision bearing trunnions of oversized ‘raw’ rolls in which emphasis is done on use of unusual technique in machining of such details on heavy lathes essence of which is to regulate upper slides of lathe support taking into account distances between repairing trunnions. It is not always possible to obtain required surface parameters with roughness R a = 0.8...0.4 μm as well as surface compressive residual stress since machining on lathe is carried out using cutting tool and especially in conditions of repair production. It is proposed to use additional device for grinding in order to solve this problem.