THE IMPACT OF TECHNOLOGICAL PARAMETERS OF DIE CASTING TO CASTING POROSITY

Abstract

The article deals with the research of the influence of selected technological parameters of die casting on the internal structure of die-casts based on Al-Si alloys. Among the chosen technological parameters of die casting is pressing piston speed and holding pressure. Examined castings internal structure is defined by the percentage of porosity. The article described the course design and preparation of metallographic samples to be investigated by optical microscopy. The measured values are given in tabular and graphical form. At the end of the evaluation is shown the impact of individual parameters on the internal structure and quality of the castings.

Recommended articles

METHODOLOGY PROPOSAL FOR IDENTIFYING LIFE-CYCLE COSTS (LCC) OF MULCHERS OF UNDESIRABLE GROWTH

ERIKA SUJOVA, HELENA CIERNA, RICHARD HNILICA
Keywords: Relevant Costs | Mulcher of Undesirable Growth | Life-Cycle Costs (LCC)

EXPERIMENTAL MEASUREMENTS OF LOW-FREQUENCY MAGNETIC FIELDS IN TERMS OF SAFETY

MILAN ORAVEC, MIROSLAV RIMAR, MARCEL FEDAK, ANDRII KULIKOV, ADRIANA DIVOKOVA
Keywords: Welding | the influence of the magnetic field to a human | personal safety | low frequency magnetic field | magnetic flux density

ANALYSIS OF SELECTED CUTTING INSERTS IN TERMS OF THEIR COMPOSITION AND WEAR

NATASA NAPRSTKOVA, JAROMIR CAIS, JAN SVIANTEK
Keywords: EDX | SEM | electron microscopy | cutting insert | turning

APPLICATION OF QUALITY ENGINEERING IN ASSESSMENT OF MINING TECHNICAL EQUIPMENT FAILURE

WITOLD BIALY, PAVEL BENO
Keywords: Pareto chart | mining machine | quality management tools | failure frequency