Vorhersage Formlebensdauer e

Committed to Casting Excellence

MAGMA trottlebody

Geometri

Dolum ve Katlama

Dolum Trblans ( Tracer )

Dolum Hzlar

Kalp Erozyonu ( MOLD EROSION)

Kalpta Hareketli Taraf elii Scaklk Dalm

Hareketli Taraf elii zerinde Muhtemel YapmalarDie Soldering On Ejector Die

Kalpta Sabit Taraf elii Scaklk Dalm

Sabit Taraf elii zerinde Muhtemel YapmalarDie Soldering On Cover Die

Hareketli Maalar zerinde Muhtemel YapmalarDie Soldering On Side Cores

Committed to Casting Excellence

Life time prediction for high pressure die casting tooling

Factors influencing heat checking

BackgroundAnalysis of thermal stresses in the die during one casting cycle

Example 1: Ejector die for a door lock panel

Casting and gating system

Cracks in the gating area

Typical cracks

Cracks at the ejector pins in the so-called Swan Neck

Typical cracks

Comparison of calculated die life with the actual crack pattern

Parameter studiesInfluence of Spraying on Die Stresses

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24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66

Time in s

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Conventional spraying process

Short step spraying

Blowing

A

Example 2: Ejector die for a bearing beam

Resim grntlenemiyor. Bilgisayarnzda resmi amak iin yeterli bellek olmayabilir veya resim bozulmu olabilir. Bilgisayarnz yeniden balatn ve sonra dosyay yeniden an. Krmz x y ine grnrse, resmi silip yeniden eklemeniz gerekebilir.


Ejector DieEjector Die

Example 2: Calculated life time (1)



Example 2: Calculated life time (2)



Conclusion

Thermo-mechanical fatigue is one of the main factors in reducing die life Costs are substantial, e.g.:

Die: 50,000 Machine downtime : 3.000 /day

Simulation reliably predicts critical areas for heat checking By modification of process parameters or die design, heat checking can be

substantially reduced

MAGMA trottlebody GeometriGeometriDolum ve KatlamaDolum ve KatlamaDolum Trblans ( Tracer )Dolum Trblans ( Tracer )Dolum HzlarDolum HzlarKalp Erozyonu ( MOLD EROSION)Kalp Erozyonu ( MOLD EROSION)Kalpta Hareketli Taraf elii Scaklk DalmKalpta Hareketli Taraf elii Scaklk DalmHareketli Taraf elii zerinde Muhtemel YapmalarDie Soldering On Ejector DieKalpta Sabit Taraf elii Scaklk DalmKalpta Sabit Taraf elii Scaklk DalmSabit Taraf elii zerinde Muhtemel YapmalarDie Soldering On Cover DieHareketli Maalar zerinde Muhtemel YapmalarDie Soldering On Side CoresLife time prediction for high pressure die casting tooling Factors influencing heat checkingBackgroundAnalysis of thermal stresses in the die during one casting cycleExample 1: Ejector die for a door lock panelCracks in the gating areaCracks at the ejector pins in the so-called Swan NeckComparison of calculated die life with the actual crack patternParameter studiesInfluence of Spraying on Die StressesExample 2: Ejector die for a bearing beamExample 2: Calculated life time (1) Example 2: Calculated life time (2) Conclusion

Vorhersage Formlebensdauer e

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