Study of Machining on Surface Roughness of Engineering Plastics.

Abstract

Now a days plastic has been widely employed in the industrial sector. Due to the need of high dimensional accuracy and good surface finish, components of plastic for these ends should be produced by means of machining processes instead of moulding processes. The operational characteristics of machine-parts have an effect on the surface formed during machining. The surface micro geometric measuring and characterizing are mostly standardized so it is suitable to compare certain types of surfaces. Wide-ranging set of parameters is available to characterize the surface texture. These plastics can be produced powder or granule products, semifinished products (bars, pipes, plates etc.) finished product respectively which depend on basically their further processing methods. Among the important group of engineering plastics, we have carried out cutting experiments with Cast polyamide 6, Acrylic, and UHMWPE materials. The cutting process, within this using turning at machining plastic for nowadays has got great importance and is mainly sole in repair technology. The spreading of engineering plastics cut compelled the tool manufacturers to develop tools suitable machining plastics, too.