POLYOXYMETHYLENE FLOW ENHANCEMENT USING THE ROUGH SURFACE INJECTION MOULD CAVITY

Abstract

Injection moulding is a manufacturing process which is suitable for high-volume production of polymer parts. These products are final and do not require any additional operations. The quality of the final product is significantly affected by the surface of the mould cavity. This paper reveals the influence of cavity surface roughness and technological parameters on the flow length of polyoxymethylene (POM) into the mould cavity. These results indicate that costly finishing methods used for working of mould cavities can be replaced with less expensive manufacturing methods. Furthermore, it might be possible to shorten the time necessary for the production of the injection mould.

Recommended articles

UTILIZING INSTRUMENTED HARDNESS TEST TO MEASURE PROPERTIES OF POLYAMIDE SURFACE LAYER

Martin Ovsik, Michal Stanek, Adam Dockal, Lenka Hylova
Keywords: gel content | surface layer | cross-linking instrumented hardness | radiation | Polyamide 6

RECONFIGURABLE WHEEL-LEGGED ROBOT

Ivan Virgala, Lubica Mikova, Tatiana Kelemenova, Michal Kelemen, Erik Prada, Darina Hroncova, Martin Varga
Keywords: mechanism | wheeled locomotion | Robot | reconfigurable | legged locomotion

THEORETICAL RESEARCH OF THE INTERNAL GAS DYNAMICS PROCESSES OF MEASUREMENTS OF HOT AIR CURTAIN WITH CROSS-FLOW FAN

Maria R. Koroleva, Olga V. Mishchenkova, Michal Kelemen, Alena A. Chernova
Keywords: curtain efficiency | gas dynamic | computational simulation | cross-flow fan | air curtain | theoretical research

COMPENSATION FOR DEVIATIONS ON CYLINDRICAL SHAPES MANUFACTURED BY 3D PRINTERS

Michal Sasala, Lukas Hrivniak, Jozef Svetlik, Peter Demec
Keywords: additive manufacturing | PLA | 3D printers | deviations