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2 2010

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Improving surface finish quality of FDM prototypes

Gajdos I., Slota J.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2010

z. 80 [274]

87-90

Rapid prototyping technologies decrease production time and costs in engineering industry but also in other industries. One of most widely used technology FDM suffers under low surface finish quality. This paper is aimed on research of surface finishing technologies applicable to improve the quality of FDM prototypes surface finish. Pretreated samples were blasted with sodium bicarbonate and glass beads. The values of Ra and Rz were measured on the samples and compared the impact of selected blasting medium and blasting conditions on surface finish quality of FDM prototypes.

Complex approach to the reverse engineering techniques

Gajdos I., Kat'uch P.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2010

z. 80 [274]

81-86

This paper describes possibilities of integration newest technologies in reverse engineering process. The integration of computer tomography and FDM rapid prototyping technology allows to reproduce plastic parts without any documentation (blueprints, CAD model...) in very short cycles lasting few hours. Even complex shaped parts, with difficult geometry become no problem for combination of these two technologies, where the conventional approach in reverse engineering would last weeks if ever possible. On experimental part with complex geometry was presented modern complex approach in reverse engineering including measuring and digitalizing of part, data preparation for printing, printing and finishing of new part. Computer tomography was also used to compare shape and dimensions of original and reproduced part.