Thermo-mechanical Simulation

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Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH Thermo-mechanical Simulation with a GLEEBLE 3500

Content Definition, Background Facility Equipment Technical features Application possibilities Proved materials Our experiences Samples Our customers Contact Specimen shapes Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 2

Definition, Background Since 1960 the US-American enterprise Dynamics System Incorporation (DSI) has developed and produced thermo-mechanical simulation facilities. The designation GLEEBLE has not been explained. The type 3500 corresponds with the 3rd generation. For each facility type there are several customer-specific completion variants. The simulator Gleeble 3500 at the SLV M-V GmbH connects to put it simply high velocity dilatometric investigations with tensile / pressure tests. It is physically possible to simulate absolutely thermal or thermal combined with mechanical or in particular cases absolutely mechanical processes. In 1996 Rostock s facility was planned and produced for physical simulation of beam welding first. In 2010 there was the last upgrade. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 3

Facility Gleeble 3500 Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 4

Equipment Basics Test machine for thermo-mechanical investigations Control panel with industrial computer PC with software for physical simulation and analysis Hydraulic pump Mechanical system (10 t) for tensile / pressure tests Standard clampings for different specimen shapes Tactile capture of transverse and longitudinal expansion Software controlled physical simulation (QUICKSIM) Software controlled data analysis (ORIGIN) Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 5

Equipment Others Chiller Compressor / pressured air Vacuum pump High-Flow-Quench-System / hydraulic accumulator Spray device for fast cooling Thermal couple Unit for welding of thermocouples Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 6

Technical features Heating rate up to 6000 K/s due to material and specimen shape/ size. System for inner cooling of dilatometric specimens. Inertialess optical capture of the transverse expansion via optical micrometer. Tactile capture of the longitudinal expansion. Maximum test force 100 kn. Strain rates from 0,01 mm/s to 1000 mm/s. Software for determination of suitable specimen shapes and thermal cycles. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 7

Application possibilities Physical simulation of short time cycles, e.g. beam welding. Physical simulation of conventional fusion welding processes. Welding ttt - diagrams. Continuous cct-diagrams. Isothermal cct-diagrams. Estimation of weldability. Microstructure and properties in the HAZ. Determination of microstructure and properties depending on location and temperature. Study of diffusion activities. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 8

Application possibilities Physical simulation of heat treatments. Measurement of the thermal expansion coefficient. Hot tensile / hot pressure test. Determination of Young s Modulus and flow stress. Resistance to thermal shock, thermal fatigue. Creep tests. Low cycle fatigue (const. temperature). Test of hot crack susceptibility possible. Fusion tests. Providing material data for FEM. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 9

Specimen shapes Conventional welding Thick plate Beam welding Thick plate Conventional welding Thin plate: Tensile test specimen - initial state Initial state Tensile test specimen after simulation Physical simulation Fusion welding Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 10

Specimen shapes Conventional welding Thick plate Impact specimen Beam welding Thick plate Impact specimens Special size Physical simulation Fusion welding Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 11

Specimen shapes Physical simulation. Hot tensile test, flat specimen. Fitted specimen. Running test, thermocouple in centre. Installation with device for measuring longitudinal elongation. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 12

Specimen shapes Physical simulation. Hot tensile test, round specimen. Left side, below: Specimen in centre reduced in diameter. Physical simulation. Hot pressure test, round specimen. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 13

Proved materials Rolled steel: Steel, unalloyed Steel, low alloyed Duplex steel Fine grain steel (355-1100 N/mm² yield strength) Laser steel Pipe steel Steel, austenitic Steel, ferritic Steel, air-hardening Ferrous cast materials: Cast steel, unalloyed Cast steel, low alloyed Gray cast iron NF metals and alloys: Aluminium Al - alloys Titanium Ti - alloys Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 14

Our experiences Development of welding ttt diagrams Estimation of the weldability Determination of the linear thermal expansion coefficient Determination of the microstructure Diagrams of mechanical properties in the HAZ of welds Evaluation of material characteristics depending on temperature Conventional cct - diagrams Physical simulation of laser beam / electron beam welding Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 15

Our experiences Simulation of heat treatments Thermo-mechanical simulation of material properties for FEM Tests due to resistance of thermal shock Hot tensile tests Determination of flow stress and Young s modulus Special investigations Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 16

Samples Physical simulation. Laser beam welding. Measured T-t-Cycle. Material: laser steel L24N. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 17

Sample Physical simulation. Laser beam welding. Demonstration and analysis of dilation and phase transformation. Material: L24N. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 18

Sample Physical simulation. Laser beam welding. Laser-welding-ttt-diagram. Material: L24N. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 19

Sample Physical simulation. Laser beam welding. Hardness in the heat effected zone. Material: L24N. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 20

Sample Physical simulation. Conventional fusion welding. Welding-ttt-diagram. Material: fine grain steel P460NH. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 21

Sample Physical simulation. Conventional fusion welding. Mechanical properties in the HAZ. Material: fine grain steel P460NH. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 22

Sample Running of hot tensile tests. Fixed specimen after test, fracture. In front: device for measuring longitudinal elongation. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 23

Sample Execution of hot tensile test Strength-stress-diagram. Hot tensile test after welding cycle. Material: AlMg3 Test temperature: 300 C Strain rate: 0,03mm/s Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 24

Sample Execution of hot tensile test Determination of Young s modulus and flow stress. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 25

Sample Gleeble 3500 during hot pressure test. Quartz pins for grabbing changes in volume at a heated specimen. Hot tensile test. Heated specimen with thermocouple to control the specified thermal cycle. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 26

Sample Testing the resistance to thermal shock at coated specimens. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 27

Sample Physical simulation of special thermal cycles for determination of differences in grain size. Material: Aluminium alloy AlMg3 Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 28

Our Customers BAM Bundesanstalt für Materialprüfung, Berlin, D Benteler Automobiltechnik GmbH, Paderborn, D Benteler Tube Management GmbH, Paderborn, D Eberspächer GmbH, Esslingen, D GMS Gesellschaft für metallurgische Systeme mbh, Bernau, D IBOK a.s., Bratislava, SK Industry Research Centre Arcelor Innovation - R&D, OCAS N.V., Zelzate, B Ing.-Büro Tobias Loose, Wössingen, D Ing.-Gemeinschaft Meyer & Horn-Samodelkin GbR, Rostock, D RWTH Aachen, ISF Inst. für Schweißtechnik und Fügetechnik, Aachen, D Leibnitz Universität Hannover, Inst. für Werkstoffkunde, Garbsen, D Leibnitz Universität Hannover, LS Werkstofftechnik, Hannover, D Liebherr MCCtec, Rostock, D Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 29

Our Customers MET Motoren- und Energietechnik GmbH, Rostock, D Nordtest GmbH, Rostock, D Robert Bosch GmbH, Stuttgart, D Rautaruukki Oyj, Ruukki Metals, Raahe, FIN Salzgitter Mannesmann Forschung GmbH, Mühlheim an der Ruhr, D SLV Halle GmbH, Halle, D SLV Hannover GmbH, Hannover, D TU Carolo Wilhelmina zu Braunschweig, Fak. für Masch.-bau, Braunschweig, D TU Duisburg-Essen, Fak. für Ingenieurwissenschaften, Essen, D Universität Rostock, LS Fertigungstechnik/Schweißtechnik, Rostock, D Universität Stuttgart, Inst. für Konstruktion und Entwurf, Stuttgart, D V & M DEUTSCHLAND GmbH, Düsseldorf, D Ventilatorenfabrik Oelde GmbH, Oelde, D Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 30

Contact Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH Alter Hafen Süd 4 18069 Rostock GERMANY Phone: +49 381 811-5010 Fax: +49 381 811-5099 Your contact partner: Dr.-Ing. Arite Scharff E-mail: scharff@slv-rostock.de Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg-Vorpommern GmbH 31