Abstract
AWJM process uses a high velocity water jet in combination with abrasive particles for cutting different types of materials using a setup as shown in Fig. 3.1. A stream of small abrasive particles is introduced and entrained in the water jet in such a manner that water jet’s momentum is partly transferred to the abrasive particles. The process thus combines the benefit of the two other advanced machining processes namely, WJM and AJM. This process relies on erosive action of an abrasive laden water jet for applications of cutting, drilling, and general cleaning and descaling of thick sections of very soft to very hard materials at high rates. Visual examination of the cutting process in AWJM suggests two dominant modes of material removal. First is erosion by cutting wear due to particle impact at shallow angles on the top surface of the kerf. Second is deformation wear due to excessive plastic deformation caused by particle impact at large angles, deeper into the kerf.
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