NEW CHALLENGES IN ABRASIVE WATER JET MACHINING

Catalina Ciofu,Catalin Tampu,Gheorghe Brabie,Cosmin Alexandru Iancu,Eugen Herghelegiu

doi:10.29081/jesr.v25i4.19

Abstract

Abrasive water jet machining (AWJM) is one of the most important method used in cutting different types of materials: alloy sheet, marble, glass, rocks. This process is used in the aeronautic, automotive, metallurgy industries and even in some art techniques and textile industry. The method consists in transforming the kinetic energy of a solid particle directed with water jet at a high pressure to remove material through erosion and abrasion. AWJM is low cost equipment compared to other conventional cutting technologies. This paper is an attempt to review the achievements made in AWJM technology for different hardness materials.

Highlights

Abrasive water jet (AWJ) is of interest for different processes as: milling, turning, grinding, polishing and complex machining
The AWJ machining (AWJM) is a well-established non-conventional machining process which has proved to be effective in machining a wide range of materials including composites [3]
AWJM will degrade the mechanical properties of composites and some methods have been developed for predicting the mechanical behavior to optimize machining quality

Summary

INTRODUCTION

Abrasive water jet (AWJ) is of interest for different processes as: milling, turning, grinding, polishing and complex machining. Cutting of shapes from plate-type materials is the most frequent application for its very good standards of quality, but there is still a demand for improvement of AWJ machining (AWJM) [1, 2]. The tendency of using AWJM at micro scale in different industries demands optimization of process parameters and operation conditions. Some authors have recently concluded that the most important parameters that have a strong impact on the quality process are depth of cut, surface roughness, kerf characteristics and nozzle wear [2, 4, 5, 6]. Other parameters considered for the process optimization which mainly affects the cutting precision are type of abrasive materials, abrasive flow rate, traverse speed, impact angle, interior nozzle diameter. A response for the machining process of the low hardness materials is the cryogenic assisted abrasive jet machining

OPTIMUM CONDITIONS FOR ABRASIVE WATER JET CUTTING QUALITY

PARTCILE VELOCITY DISTRIBUTION IN ABRASIVE JET MACHINING

CONCLUSIONS