Federalnoe gosudarstvennoe byudzhetnoe obrazovatelnoe uchrezhdenie vysshego obrazovaniya "Rybinskij gosudarstvennyj aviatsionnyj tekhnicheskij universitet imeni P.A. Soloveva"
发明人:
Pervov Mikhail Leonidovich,Skobeleva Anna Sergeevna,Gribkova Lyudmila Sergeevna
申请号：
RU20180103317
公开号：
RU2671384(C1)
申请日:
2018.01.29
申请国别(地区):
俄罗斯
年份:
2018
代理人:
摘要：
FIELD: technological processes; measurement technology.SUBSTANCE: invention relates to the field of studying friction in the treatment of metals by pressure, in particular to methods and devices for studying the friction coefficient of plastic deformation. Sample is deformed, then the deforming force, the contact area of the sample with the tool surface, the surface area of the side, the frictional force and the required coefficient of friction are determined. Sample is made rectangular with side a, height h, and the dimensions of the sample must satisfy the condition h/a = 1...1.5. Sample is placed in the U-shaped groove of the cage. On top of the sample, there is a press punch driven by the press beam. Ends of the sample on opposite sides support the retaining and pushing punches. Sample is deformed by the pushing punch, maintaining a constant pressure on the retaining punch, first, the deformation of the sample is carried out under the condition that the average pressure on the cage walls is less than the
