Results 31 to 40 of about 447,007 (315)
Rotary compression as a new calibration test for prediction of a critical damage value
Journal of Materials Research and Technology, 2020 The article presents the problem of ductile fracture of metals and metal alloys formed in hot working conditions. The basic damage criteria used in modelling fracture as well as calibrating tests used to determine the critical damage values were ...
Zbigniew Pater +2 more
doaj +1 more source
Numerical and Experimental Study on Axial Feed Skew Rolling of Small-Diameter GH4169 Alloy Bars
Journal of Physics: Conference Series, 2023 This study relates to an innovative method for forming small-diameter GH4169 superalloy bars by Axial Feed Skew Rolling (AFSR). The finite element (FE) model was established to reveal the deformation characteristics and rolling force parameters of GH4169
Huibo Zhang +4 more
semanticscholar +1 more source
The energy–momentum method for the stability of non-holonomic systems [PDF]
, 1997 In this paper we analyze the stability of relative equilibria of nonholonomic systems (that is, mechanical systems with nonintegrable constraints such as rolling constraints).
Bloch, Anthony M. +2 more
core +5 more sources
Simulation methods for skew rolling
Procedia Manufacturing, 2019 Abstract A number of different rolling processes are summarized under the term skew rolling. The process variant investigated in this paper is an incremental flexible rolling process with kinematic forming of the geometry. Two sets of actively driven work rolls are used in a transverse rolling process to selectively reduce the diameter of a ...
C. Guilleaume, A. Brosius
openaire +1 more source
Numerical Simulation of Two-roller Rotary Rolling Piercing of a New Heat-resistant Alloy SP2215 Seamless Pipe [PDF]
TeshugangIn the process of rotary rolling and piercing for austenitic heat-resistant alloy， the improper selection of process parameters may result in phenomena such as coarse grain and mixed crystal in the pipe billet， or even fracture during processing， thereby
Liang Kai, Yao Zhihao, Xie Xishan, Wang Hongying, Cheng Jian, Dai Weixing, Dong Jianxin
doaj +3 more sources
Prediction of Waviness Values in Skew Rolling Using Machine Learning Methods
Advances in Science and Technology Research Journal, 2023 This paper relates to the selection of a machine learning model for predicting the surface waviness of rolled products. An experimental study was carried out using the skew rolling method with three tapered rolls.
K. Lis +4 more
semanticscholar +1 more source
Analysis of the Effect of Rolling Speed on the Capability to Produce Bimodal-Structure AZ31 Alloy Bars in the Three-High Skew Rolling Mill [PDF]
Archives of Metallurgy and Materials, 2020 A numerical analysis of the process of single-pass rolling of AZ31 magnesium alloy bars in the three-high skew rolling mill has been carried out in the study.
A. Stefanik, P. Szota, S. Mróz
doaj +1 more source
FEM Analysis of Loads and Torque in a Skew Rolling Process for Producing Axisymmetric Parts
Archives of Metallurgy and Materials, 2017 Skew rolling is a metal forming technique which can be used for producing stepped axles and shafts. This paper investigates seventeen cases of rolling at varying process parameters by the finite element method.
Pater Z.
doaj +1 more source
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2020 The article presents the concept and capabilities of a computer system for analysing measurement data for a skew rolling mill used to produce steel balls.
Marcin Buczaj, Andrzej Sumorek
doaj +1 more source
Archives of Metallurgy and Materials, 2015 Currently magnesium alloy bars are manufactured mainly in the extrusion process. This method has some drawbacks, which include: low process capacity, considerable energy demand, small length of finished products.
Stefanik A. +4 more
doaj +1 more source