Al-Si Alloys Casts by Die Casting A Case Study

Introduction

1. Current State of the Art

1.1.Die Casting of Metals

1.2.Characteristics of Die Casting of Metals

1.3.Basic Methods of Die Casting of Metals

1.3.1.Hot-chamber Machines

1.4.Special Methods  of Die Casting  of Metals

1.5.Basic Construction Elements of Die Casting Machines Designed for Metal Die Casting

1.5.1.Machine Drive

1.5.2.Locking Mechanism of a Machine

1.5.3.Pressing Mechanism

1.6.1.Dosing Device

1.6.2.Cast Unloading Device

1.6.3.Mould Treatment Device

1.6.4.Trimming Press

1.6.5.Device for Auxiliary Heating of Working Fluid

1.7.Process of Die Casting of Metals

1.7.1.Metal Flowing

1.8.Mould Cavity Filling

1.9.Technological Parameters of  Die Casting of Metals

1.9.1.Pressing  Speed

1.9.2.Working Pressure

1.9.3.Time  of Mould Cavity  Filling

1.10.Moulds  for Die Casting  of Metals

1.10.1.Gating System

1.10.2.Mould Venting

1.11.Casts in Die Casting

1.11.1.Technological Properties of Casts

1.11.2.Use Properties of Casts

1.11.3.Cast Defects

1.12.Properties of Alloys at Crystallization Interval

1.13.Aluminium Alloys for Die Casting

1.13.1.Aluminium

1.13.2.Al-Si Alloys

1.13.3.Additive Elements and their Influence on Al-Si Alloys

1.14.Returnable Material

2. Analysis of the Production Process

3. Characteristics  of the Cast  – Testing Sample

4. Characteristics  of Technological Parameters

4.1.Pressing Speed

4.2.Working Pressure

5.Cast Testing

5.1.Examined Strength Properties of the Casts

5.2.Examined Use  Properties  of the Casts

6.Characteristics of a Production Process

7.Characteristics  of the Cast

9.Assessment of Tensile Strength  Rm

10.Assessment of Cast Porosity

11. Perspectives