Circumferential cracking in conventional metal spinning process

2020 ◽  
Author(s):  
H.H. Nguyen ◽  
H. Champliaud ◽  
V.N. Lê
Keyword(s):  
Spinning Process ◽  
Metal Spinning

On the manufacturing of a gas turbine engine part through metal spinning process

2018 ◽  
Author(s):  
A. El Hassanin ◽  
A. Astarita ◽  
F. Scherillo ◽  
C. Velotti ◽  
A. Squillace ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Turbine Engine ◽  
Engine Part ◽  
Spinning Process ◽  
Metal Spinning

New Approach for Process Planning and Optimization in Sheet Metal Spinning

2005 ◽  
Vol 6-8 ◽  
pp. 493-500 ◽  
Author(s):  
R. Göbel ◽  
Matthias Kleiner ◽  
N. Henkenjohann
Keyword(s):  
Sheet Metal ◽  
Process Planning ◽  
Statistical Design ◽  
Case Based Reasoning ◽  
Systematic Design ◽  
Statistical Design Of Experiments ◽  
New Approach ◽  
Design And Optimization ◽  
Spinning Process ◽  
Metal Spinning

Due to the high complexity and the large number of possible geometries to be formed, a systematic design of the sheet metal spinning process is, up to now, difficult and time consuming. Sustainable models of the spinning process do not exist so far. Due to this, a new approach for the systematic design and optimization of the spinning process has been developed. In a first step of the planning sequence, a prediction of initial parameter settings is given by a case-based-reasoning approach. A first adaptation of the pre-selected parameters is then realized on a fuzzy-based model. In the next step, a model based optimization using statistical design of experiments is performed. For this, a new statistical approach has been developed being optimized regarding the requirements of the spinning process. In this paper, the methods used and the implementation of the approach in a process planning software are described. The approach is verified by the example of setting up a process to manufacture a cylindrical model workpiece.

scholarly journals Experimental Research on the Impact of Thin-Wall Ratio and the Fillet Radius of Forming Roller on the Limiting Spinning Ratio of AMS 5504 Sheets

2017 ◽  
Vol 62 (4) ◽  
pp. 2261-2266
Author(s):  
S. Kut ◽  
F. Stachowicz ◽  
G. Ryzińska ◽  
T. Mrugała
Keyword(s):  
Experimental Research ◽  
Vertical Axis ◽  
Experimental Investigations ◽  
Geometrical Parameters ◽  
Thin Wall ◽  
Fillet Radius ◽  
Spinning Process ◽  
Metal Spinning ◽  
The Impact ◽  
Negative Phenomena

AbstractResults of experimental investigations of metal spinning process of AMS 5504 sheets. cylindrical drawpieces with use of discs-shaped sheet with various diameter and thickness were shown in this work. Tests were performed on two roller metal spinning machine of a vertical axis Leifeld SFC 800 V500.The main objective of the study was to determine the dependence between limiting spinning coefficient, thin wall ratio coefficient and the fillet radius of forming rollers. To realize this aim required the development of an original methodology and experimental research plan. Determined relationship takes into account the occurrence of negative phenomena in the process of spinning such as wrinkling or cracking of material.Due to the possibility of prediction of these negative phenomena, determined relationship is used in the design of a metal spinning processes. On the basis on determined relationship can be done a practical assessment of the possibility of shaping with certain geometrical parameters by spinning. Obtained results were shown graphically on the diagrams and their analysis was carried.

An experimental—numerical investigation of a metal spinning process

2010 ◽  
Vol 225 (3) ◽  
pp. 509-519 ◽  
Author(s):  
H R Beni ◽  
Y T Beni ◽  
F R Biglari
Keyword(s):  
Strain Distribution ◽  
Theoretical Calculations ◽  
Three Dimensional ◽  
Experimental Tests ◽  
Experimental Results ◽  
Explicit Finite Element ◽  
Wide Range ◽  
Spinning Process ◽  
Metal Spinning ◽  
Drawing Method

Spinning process is an advanced plastic working method, which is frequently used for manufacturing of axisymmetric shapes, especially those that cannot be easily produced with deep drawing method. In this article, a three-dimensional explicit finite-element (FE) analysis is employed to simulate the spinning process of an aluminium circular sheet. To achieve a wide range of strain distribution in different directions, a hemispherical cup has been chosen as the final product shape. In addition, a theoretical shear forming as well as a conventional model has been employed to estimate strain distribution in the spinning hemispherical cup. Experimental tests are carried out using a spinning machine and a hemispherical mandrel. Finally, FE and theoretical calculations are compared with the experimental results. A good agreement has been demonstrated between numerical and experimental results but a relative agreement with theoretical calculations.

An Adaptive Sequential Procedure for Efficient Optimization of the Sheet Metal Spinning Process

2005 ◽  
Vol 21 (5) ◽  
pp. 439-455 ◽  
Author(s):  
Nadine Henkenjohann ◽  
Roland Göbel ◽  
Matthias Kleiner ◽  
Joachim Kunert
Keyword(s):  
Sheet Metal ◽  
Sequential Procedure ◽  
Spinning Process ◽  
Metal Spinning

Analysis of Radial Strain Distribution in the Metal Spinning Process by Taguchi Approach

2012 ◽  
Vol 472-475 ◽  
pp. 719-722
Author(s):  
Peter Šugár ◽  
Jana Šugárová ◽  
Peter Zemko
Keyword(s):  
Strain Distribution ◽  
Radial Strain ◽  
Taguchi Approach ◽  
Analysis Method ◽  
Anova Analysis ◽  
Planar Anisotropy ◽  
Factors Affecting ◽  
Grid Analysis ◽  
Spinning Process ◽  
Metal Spinning

The paper presents the results of radial strain distribution measurement throughout the part after multi-pass conventional metal spinning by the circle grid analysis method. The influence of the mandrel speed, workpiece geometry and planar anisotropy of material on the radial strain was studied. For experiment design, an orthogonal array L27 was used and ANOVA (Analysis of Variance) was carried out. Based on the results it is determined that the sequence of factors affecting radial strain corresponds to geometry of spun part, mandrel speed, planar anisotropy of the sheet. In particular, it is found that the workpiece geometry (specific areas of spun part: mandrel/workpiece radius, conical area, cylindrical area) is the most important factor which influences the radial strain of the spun part.

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