Results 31 to 40 of about 921,833 (368)

Parametric Analysis of Macro-Geometrical Deviations in Dry Turning of UNS A97075 (Al-Zn) Alloy

open access: yesMetals, 2019
Macro-geometrical deviations play a very important role in the functionality and reliability of structural parts for aircraft. The use of environmentally friendly techniques, such as dry machining, may negatively affect these deviations.
Sergio Martín Béjar   +3 more
doaj   +1 more source

Performance impact of honing dynamics on surface finish of precoated cylinder bores [PDF]

open access: yes, 2013
The surface modification of engine cylinder bores with improved sliding properties is often produced by the honing process. This multi-stage process is performed using abrasive stones loaded against the bore with simultaneous rotation and oscillation. To
EL MANSORI, Mohamed   +2 more
core   +6 more sources

The Development of a Technological Processor as a Part of a Workpiece Programming System [PDF]

open access: yes, 1981
The cost of turning on NC-lathes is substantially sensative to cutting conditions. The use of optimum cutting conditions is limited by a large number of constraining factors such as chip disposal, chucking possibility, available power, required accuracy ...
Houten, F.J.A.M. van, Kals, H.J.J.
core   +3 more sources

Influence of AbrasiveWaterjet Parameters on the Cutting and Drilling of CFRP/UNS A97075 and UNS A97075/CFRP Stacks [PDF]

open access: yes, 2018
The incorporation of plastic matrix composite materials into structural elements of the aeronautical industry requires contour machining and drilling processes along with metallic materials prior to final assembly operations.
Mayuet Ares, Pedro Francisco   +3 more
core   +2 more sources

Analysis of shape correctness of surfaces of diamond burnished components

open access: yesMATEC Web of Conferences, 2017
In these days, diamond burnishing is frequently used for final finishing manufacturing operations of components. Diamond burnishing belongs to cold plastic manufacturing procedures.
Varga Gyula, Ferencsik Viktoria
doaj   +1 more source

Optimizing Mandrel Dimensions for a Fixture Hardening Process of High-Strength Steel Aerospace Parts by Finite Element Simulation

open access: yesMetals, 2020
A fixture hardening process for aerospace gear box components of alloy S156 (16NiCrMo16-5, 1.6722) is investigated by thermomechanical metallurgical 2D axisymmetric Finite Element simulations. Material parameters are experimentally determined.
Hannes Birkhofer   +2 more
doaj   +1 more source

Effect of Heat Treatment on the Resulting Dimensional Characteristics of the C45 Carbon Steel after Turning

open access: yesMetals, 2022
The presented article deals with the influence of the heat treatment of C45 steel on the surface quality after turning. Turning is a machining technology used to prepare specific geometrical characteristics of surface and dimensional quality.
Jana Moravčíková   +2 more
doaj   +1 more source

New examples of cylindrical Fano fourfolds

open access: yes, 2017
International audienceWe produce new families of smooth Fano fourfolds with Picard rank 1, which contain cylinders, i.e., Zariski open subsets of form Z × A 1 , where Z is a quasiprojective variety. The affine cones over such a fourfold admit effective G
Prokhorov, Y., Zaidenberg, M.
core   +2 more sources

Experimental Investigation, Modeling and Optimization of Circularity, Cylindricity and Surface Roughness in Drilling of PMMA Using ANN and ANOVA

open access: yesMateriale plastice, 2020
In this paper, experimental investigation, modeling and optimization of the drilling of PMMA are performed using the Taguchi Design of Experiments (DOE), analysis of variance (ANOVA) and artificial neural networks (ANN) methods.
F. Susac, F. Stan
semanticscholar   +1 more source

Effect of grain size and density of abrasive on surface roughness, material removal rate and acoustic emission signal in rough honing processes [PDF]

open access: yes, 2019
Honing processes provide a special cross-hatch pattern to the internal surface of cylinders that favors oil flow. However, along honing operation the abrasive grains wear out and lose their ability to cut material.
Buj Corral, Irene   +2 more
core   +2 more sources

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