Press Joining Rolling Process for Hybrid Systems

2010 ◽  
Vol 425 ◽  
pp. 271-281 ◽  
Author(s):  
Adele Carradò ◽  
Olga Sokolova ◽  
Gerhard Ziegmann ◽  
Heinz Palkowski
Keyword(s):  
Deep Drawing ◽  
Rolling Process ◽  
Roll Bonding ◽  
Steel Sheets ◽  
The Press ◽  
Polymer Metal ◽  
Sandwich Sheet ◽  
The One ◽  
Forming Behaviour ◽  
Metal Polymer

The press joining rolling process used for the production of metal/polymer/metal systems is introduced. In the first step three-layer sandwich sheet, 316L/polypropylene- polyethylene/316L (316L/PP-PE/316L) with and without local reinforcement, were processed by roll bonding at approx. 250°C of two steel sheets with a pre-rolled PP-PE - core sheet. Mechanical and forming behaviour of the parts had been investigated by tensile, bending and deep drawing tests. It could be shown that for moderate drawing depths deep drawing behaviour is close to the one of the mono-material.

Influence of Pre-Generated Infinite Adhesive Defects on the Forming Behaviour of Adhesive Bonded Steel Sheets

2014 ◽  
Vol 939 ◽  
pp. 328-335 ◽  
Author(s):  
V. Satheeshkumar ◽  
R. Ganesh Narayanan
Keyword(s):  
Plane Strain ◽  
Deep Drawing ◽  
Adhesive Layer ◽  
Tensile Tests ◽  
Epoxy Adhesive ◽  
Test Results ◽  
Steel Sheets ◽  
Sheet Materials ◽  
Materials Used ◽  
Forming Behaviour

In the present investigation, the forming behaviour of adhesive bonded sheets with the pre-generated infinite defects in the adhesive layer is studied. The infinite defects are generated with different orientations like longitudinal, transverse and at an angle of 45°. The base sheet materials used are deep drawing quality steel and SS 316L sheets, and two part epoxy adhesive is used for bonding the base sheet materials. The formability is quantified by monitoring the load-extension behaviour, and limit strain, evaluated through tensile tests and in-plane plane strain (IPPS) formability tests. It is observed that there is a significant decrease in formability because of the presence of infinite defects in the adhesive layer. While comparing the formability of adhesive bonded blanks with respect to different orientations, transversely oriented defect shows more reduction than 45° and longitudinal cases. There is not much difference between the transversely oriented and 45° oriented infinite defects in tensile tests, whereas in the IPPS formability test results, there is no considerable difference between 45° and longitudinally oriented defect.

Simulating the Temper Rolling of Galvanized Steel

2005 ◽  
Vol 105 ◽  
pp. 371-378 ◽  
Author(s):  
G. Vincent ◽  
C. Counhaye ◽  
Claude Esling
Keyword(s):  
Numerical Simulation ◽  
Rolling Process ◽  
Galvanized Steel ◽  
Stress Fields ◽  
Temper Rolling ◽  
Coated Steel ◽  
Steel Sheets ◽  
Skin Pass ◽  
Early Results ◽  
Zinc Coated Steel

This work deals with early results obtained in numerical simulation of the skin-pass of zinc coated steel sheets. First, the streamline model and its adaptation to the case of the temper rolling of coated steel sheets are detailed. Second, the influence of various parameters of the rolling process on the strain and stress fields in the sheet is numerically calculated.

scholarly journals A Mixed Numerical-Experimental Method to Characterize Metal-Polymer Interfaces for Crash Applications

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 818
Author(s):  
Jonas Richter ◽  
Moritz Kuhtz ◽  
Andreas Hornig ◽  
Mohamed Harhash ◽  
Heinz Palkowski ◽  
...  
Keyword(s):  
Experimental Parameter ◽  
Dissimilar Materials ◽  
Calibration Method ◽  
Parameter Determination ◽  
Failure Behavior ◽  
Cohesive Elements ◽  
Interface Failure ◽  
Wide Range ◽  
Polymer Metal ◽  
Metal Polymer

Metallic (M) and polymer (P) materials as layered hybrid metal-polymer-metal (MPM) sandwiches offer a wide range of applications by combining the advantages of both material classes. The interfaces between the materials have a considerable impact on the resulting mechanical properties of the composite and its structural performance. Besides the fact that the experimental methods to determine the properties of the single constituents are well established, the characterization of interface failure behavior between dissimilar materials is very challenging. In this study, a mixed numerical–experimental approach for the determination of the mode I energy release rate is investigated. Using the example of an interface between a steel (St) and a thermoplastic polyolefin (PP/PE), the process of specimen development, experimental parameter determination, and numerical calibration is presented. A modified design of the Double Cantilever Beam (DCB) is utilized to characterize the interlaminar properties and a tailored experimental setup is presented. For this, an inverse calibration method is used by employing numerical studies using cohesive elements and the explicit solver of LS-DYNA based on the force-displacement and crack propagation results.

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