Results 11 to 20 of about 459,184 (233)
The influence of heterogenous porosity on silicon nitride/steel wear in lubricated rolling contact [PDF]
, 2000 Heterogeneous porosity is detected on the surface and subsurface of hot isostatically pressed (HIPed) silicon nitride spherical rolling elements. The extent of the localised porosity accounts for an area of 6% of the rolling element surface and 4% of the
Kang, J, Hadfield, M
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Comparison of 4-ball and 5-ball rolling contact fatigue tests on lubricated Si3N4/steel contact [PDF]
, 2003 Accelerated four-ball and five-ball rolling tests were performed on HIPed Si3N4 ball samples (rough lapped with surface roughness value Ra0.08 μm and Rq0.118 μm) in fully lubricated condition.
Kang, J, Hadfield, M
core +6 more sources
Some problems in hot rolling of al-alloys solved by the finite element method [PDF]
This thesis is focused on employing the finite element method (FEM) to simulate hot flat rolling process. The relevant work involves selecting a suitable constitutive equation, predicting the rolling load and roll torque, computing temperature changes ...
Duan, X.
core +9 more sources
Tribological behaviour of polyalphaolefins: wear and rolling contact fatigue tests [PDF]
, 2001 Polyalphaolefin fluids are gaining rapid acceptance as high-performance lubricants and functional fluids because they have certain inherent, and highly desirable, characteristics relative to mineral oils.
Hernandez Battez, Antolin +2 more
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Rolling to control residual stress and distortion in friction stir welds [PDF]
, 2010 Considerable residual stress and distortion can be produced by friction stir welding, impeding industrial implementation. Finite element analysis has been used to develop three innovative rolling methods that reduce residual stress and distortion in ...
Colegrove, Paul A. +11 more
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Contact Pressure Measurement System in Cross Wedge Rolling [PDF]
, 2010 In the cross wedge rolling process (CWR), plastic deformation is geared by a driving torque transmitted by friction on die surface. Friction plays a role which has to be further identified in this metal forming process. The local contact pressure between
MANGIN, Philippe +2 more
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Chinese Journal of Mechanical Engineering, 2022 Laser cladding is a new surface repair method that can improve the wear and corrosion resistance of substrate surfaces. However, the cladding layer typically exhibits a rough surface, high hardness and large residual tensile stress, and thus requires ...
Kaikui Zheng +3 more
doaj +1 more source
Determination of discrete element simulation parameters of rice milling machine
Shipin yu jixie, 2023 Objective: To solve the problem that the roller is inconvenient to operate and the concept of rolling friction coefficient and sliding friction coefficient is confused. Methods: EDEM software was used to simulate the white milling process.
ZHANG Ning +3 more
doaj +1 more source
Shock and Vibration, 2021 Considering the two kinds of nonlinear constraints of rolling mill hydraulic cylinder, spring force and friction force, the vibration model of rolling mill system is established.
Zhaolun Liu +3 more
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Nihon Kikai Gakkai ronbunshu, 2023 The computational simulation of the rolling process of the polycrystalline metal plate is performed using the second-order homogenization finite element (FE) method.
Makoto UCHIDA +2 more
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