Quality
Waterjet Newsletter – 01/10/2006
Book Review: “Abrasive Waterjet Machining of Engineering
Materials” by Jun Wang*
Most of this 7-chapter, 106-page book highlights the research work done by the author and his
research group. Review was also given to selected publications on related
topics. For someone new to
the research world of abrasive waterjet machining, the first two chapters provides a good foundation on the operating principle of this
technology, without getting lost in the details of each individual research
paper. Chapter 3 reviews some CFD work on pure waterjets
and abrasive waterjets done by the author and his
group. You might have to read the original papers on this topic if you are
interested and want to know what it really means to you. Chapter 4 focuses on abrasive waterjet
cutting of three special types of engineering materials: metallic coated
sheet steels, industrial ceramics, and polymer matrix composites. The study
was tailored to each material. Some simple empirical models for kerf characteristics (kerf
width, taper, and surface roughness) were included. Chapter 5 reviews an
experimental study on contouring with abrasive waterjets.
An abrasive waterjet cutting experiment with 6 levels of arc radii, 3 levels
of water pressure, and 3 levels of traverse speed was done on ½ inch thick
alumina ceramic slabs. The results have some values for general understanding
of the process, but cannot be readily extended to other materials and the
scope of the investigation was limited. Chapter 6 was devoted to the
phenomenon of striation marks on an abrasive waterjet cut surface. Several
theories of striation formation were reviewed and discussed. However, for
such a complicated subject, the review is far from complete.
Perhaps the real value of this chapter is to provide a foundation of
understanding for the topic in the following chapter. Chapter 7 talks about
three enhancement techniques for abrasive waterjet cutting: forward tilting,
controlled oscillation, and multiple passes. It appears that each of these
three techniques has some advantages, especially for straight-line cutting.
The concept of forward tilting is the simplest one and its benefits are also
easily understood. However, the feasibility and benefits of controlled oscillation
and multiple passes techniques for practical contour cutting are not very
clear. It appears that the works of the
author and his group were never presented on the two major forums of this
community: the two series of waterjet conferences organized, respectively, by
BHR group and by WJTA. This book showcases their works to this community. It
is a valuable addition of research literature needed by students and
researchers who are working in this field. * Wang, Jun, “Abrasive Waterjet Machining of
Engineering Materials”, Materials Science Foundations 19, Trans Tech
Publications, 2003. Beyond High
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