Waterjetting Technology

Waterjet technology is used in a variety of industries including civil engineering, mining, geotechnical engineering, tunnelling, defence, construction and conservation. This book is essential reading for all those engaged in waterjet technology - from manufacturers of the equipment through to Government Contracting Officers who let the awards, to the individual contractors and their engineers.

Waterjet technology involves complex flow phenomena, which include supersonic, turbulent, compressible, and three-phase interactions. This book, by the editor and colleagues, distills three decades of R&D expertise from Flow Industries, Inc. and OMAX Corp., based in Kent, Washington, USA. Organized into 10 sections and 32 chapters, it blends physical experiments and limited computational fluid dynamics analyses as R&D methodologies. Through flow visualization and probe measurement, the book characterizes waterjet geometry, water-droplet and abrasive speeds, surface roughness and edge qualities of machined parts, and more. It showcases advancements in micro abrasive-waterjet technology, recognized as a 2016 R&D 100 Awards finalist and honored with the 2016 Tibbitts Award from the U.S. Small Business Administration.

This book aims to recapitulate old information's available and brings new information's that are with the fashion research on an atomic and nanometric scale in various fields by introducing several mathematical models to measure some parameters characterizing metals like the hydrodynamic elasticity coefficient, hardness, lubricant viscosity, viscosity coefficient, tensile strength .... It uses new measurement techniques very developed and nondestructive. Its principal distinctions of the other books, that it brings practical manners to model and to optimize the cutting process using various parameters and different techniques, namely, using water of high-velocity stream, tool with different form and radius, the cutting temperature effect, that can be measured with sufficient accuracy not only at a research lab and also with a theoretical forecast. This book aspire to minimize and eliminate the losses resulting from surfaces friction and wear which leads to a greater machining efficiency and to a better execution, fewer breakdowns and a significant saving. A great part is devoted to lubrication, of which the goal is to find the famous techniques using solid and liquid lubricant films applied for giving super low friction coefficients and improving the lubricant properties on surfaces.

This book reports on recent advances in the rapidly growing field of high-speed water jet technology, discussing research, developments and applications related to cutting, machining, repair of structures and buildings, cleaning, removal of coatings and layers, mining, and abrasive materials. It also explores special applications of high-pressure techniques, as well as important environmental aspects and solutions for technology transfer. Thanks to the balance of theory and practical findings, the book offers a timely snapshot for researchers and industrial communities alike, and a platform to facilitate communication and collaboration between the two groups.

This book is being simultaneously published as a special issue of the Journal of Architectural Conservation, and presents the very latest research and developments in the cleaning of buildings, sculpture and monuments. It covers both wet and dry micro abrasive systems, other types of abrasives, laser cleaning methods and proprietary poultices for specialized applications. The material presented is supported by case study examples from an international selection of major buildings and monuments, where the techniques have recently been tried and tested.

KEY FEATURES: • This technique is growing in importance. • The first comprehensive book in this subject. A practical and comprehensive account of the technology and applications of hydroblasting, a technique used more and more in the preparation of steel and other surfaces. Steel surfaces will corrode unless they are properly prepared and coated. Such corrosion can have disastrous effects (eg bridge collapse) therefore the preparation of the surface is of major importance. Due to environmental pressure to move away from grit-blasting, high-pressure water can now be used to prepare surfaces, with few environmental costs. This book systematically and critically reviews the state of current hydroblasting technology and its applications. The book is essentially practical in nature and is written by an expert in the field.

Covers strata mechanics, numerical methods in geomechanics, water jet cutting and mechanical disintegration of rocks. The preface discusses the option of describing typical interdisciplinarity of geosciences, dealing with the processes induced by human activities in geospere, by the word geonics.

This volume contains papers presented at the 11th International Conference on Jet Cutting Technology, held at St. Andrews, Scotland, on 8-10 September 1992. Jetting techniques have been successfully applied for many years in the field of cleaning and descaling. Today, however, jet cutting is used in operations as diverse as removing cancerous growths from the human body, decommissioning sunsea installations and disabling explosive munitions. The diversity is reflected in the papers presented at the conference. The papers were divided into several main sections: jetting basics -- materials; jetting basics -- fluid mechanics; mining and quarrying; civil engineering; new developments; petrochem; cleaning and surface treatment; and manufacturing. The high quality of papers presented at the conference has further reinforced its position as the premier event in the field. The volume will be of interest to researchers, developers and manufacturers of systems, equipment users and contractors.