The role of polymeric additives in water jet cutting. (22nd July 2009)

• Record Type: Journal Article
• Authors: Annoni, Massimiliano; Monno, Michele; Bertola, Volfango; Goletti, Massimo
• Is Part Of: International journal of machining and machinability of materials. Volume 6:Number 3/4(2009)
• Page Start: 285
• Page End: 304
• Publication Date: 2009-07-22
• Subjects: abrasive waterjet machining -- AWJ additives -- polymers -- drag reduction -- depth penetration -- polymeric additives -- jet behaviour -- cutting performance; Machining -- Periodicals; Metals -- Machinability -- Periodicals; 671.35
• Languages: English
• ISSNs: 1748-5711

Abstract

The use of additives in water jet (WJ) applications is known since 1970 when Franz (1970) outlined the effect of improved coherence due to additives as a method to increase depth penetration of a WJ. A number of publications exist in literature although a comprehensive study of the different additives effects is not available so far. Early studies (Franz, 1972; Kudin et al., 1973; Zakin and Summers, 1976) point out how the WJ cutting performance is enhanced by certain additives, however, the application of drag-reducing additives to abrasive water jet (AWJ) technology is not well-developed and understood, especially in case of injected jets (Hollinger et al., 1989; Hashish, 1997; Howells, 1999; Louis et al., 2003). The aim of the present study is to develop an injection system suitable to give a quantitative assessment of the effect of various types of additives on the WJ cutting capability. In particular, such system has been applied to investigate the main effects of a polymeric additive in case of WJ machining under a technological point of view (jet behaviour and cutting performance).