No abstract

This work deals with the quality of machined surface obtained with waterjet cutting (WJC) technology, regarding the influence of selected dynamic parameters (traverse speed, abrasive mass flow rate and pressure) on the quality of machined surface. Examination presented in the work was carried out on specimens made from AISI 316L corrosion resistant steel and measured with portable surface roughness tester. Results obtained by experiment were analyzed with licensed version of software for statistical analysis Design Expert 10.

Original scientific paper Modern technological development is characterized by discovering a large number of new and advanced materials for which the standard machining processing that currently prevails in industry from technical and economic point of view is often difficult to achieve. Due to the inability of fulfilling all the requirements of modern technology, application of non-conventional machining processes such as hydro abrasive cutting is more significant. The paper focuses on the verification of the thesis whether the standard operations such as milling could be replaced by non-conventional machining process of hydro abrasive cutting while maintaining the required quality of the processed surface. If the thesis is accepted, it is necessary to specify the maximum cutting depth to which to achieve the required quality of surface material machining is possible with minimal consumption of resources. Keywords: analysis of variance; hydroabrasive waterjet cutting; process optimization; surface quality Optimizacija procesa rezanja korozijski postojanog čelika AISI 316 L hidro abrazivnim mlazomIzvorni znanstveni članak Suvremeni tehnološki razvoj karakterizira pronalazak velikog broja novih i naprednih materijala za koje je obrada standardnim postupcima koji trenutno prevladavaju u industriji s tehničkog i ekonomskog stajališta često teško izvodiva. Zbog nemogućnosti ispunjavanja svih zahtjeva suvremene tehnologije sve je značajnija primjena nekonvencionalnih postupaka obrade poput hidro abrazivnog rezanja. Članak se fokusira na provjeru teze mogu li se standardni postupci poput glodanja zamijeniti nekonvencionalnim postupkom hidro abrazivnog rezanja uz zadržavanje zahtijevane kvalitete obrađivane površine. Ukoliko se teza prihvaća, potrebno je odrediti maksimalnu dubinu rezanja do koje je moguće ostvariti traženu kvalitetu površine uz minimalni utrošak resursa.