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Micro AWJ Technology for Meso-Micro Machining

Waterjet technology has technological and manufacturing merits that cannot be matched by most established machine tools. There is considerable demand for downsizing beam diameters of abrasive-waterjets (AWJs) to reduce costs for machining of various microproducts. Current production AWJ systems are limited to cutting features around 200 to 300 μm due to difficulties in further downsizing AWJ...

Micro Abrasive-Waterjet Technology

Waterjet technology has come a long way since its commercialization in the late 1970’s. It has evolved from merely a rough cutting tool to a precision machine tool, competing on equal footing with established tools such as lasers, mechanical milling and routing tools,EDM, ultrasonics, photochemical etching, and various CNC tools.

The versatile waterjet technology inherently has...

Versatility of Waterjet Technology: From Macro to Macro Machining for Most Materials

Waterjet technology has matured rapidly and become one of the mainstream precision machine tools since commercialized in the late 1970’s. Waterjets have several inherent features that are superior to most conventional machine tools. Abrasive-waterjets are nowadays highly automated with PC-based CAD/CAM software that controls and operates the hardware (pump, nozzle, abrasive feeding,...

Critical Facts About Ultra Ultra High Pressure Abrasive Waterjet Cutting Systems

There has been a lot of discussion about the benefits of moving to higher and higher water pressure in abrasive waterjet (AWJ) cutting systems. It has gotten to the point that you now hear statements such as “Everybody knows that the secret to faster cutting is higher pressure”. However actual cutting test data and user experience show that such statements are incorrect and...

Limits to the Precision of Abrasive Jet Cutting

The market size for abrasive jet cutting is dependent on both the speed of the machine and the precision of the resultant part. Early abrasiive jets were crude, slow cutting devices that were used only as the process of last resort where all other fabrication methods failed usually because of the difficult properties of the materlia being cut. Today, abrasive jet machining is approaching the...

Advancement of Versatile Waterjet Technology to Rebuild Competitiveness in Manufacturing

In the current economic crisis, several hundred thousand manufacturing jobs have been and many more are expected to be cut. This white paper attempts to help recover the manufacturing sector by creating new jobs while curbing outsourcing through rebuilding America’s manufacturing leadership and competitiveness. We propose to meet the above societal challenge through advancing and...

Faster Abrasive Waterjet Cutting

Abrasive Waterjet Cutting has proven to be an effective and economical process for separating virtually any material. Today, applications of abrasive waterjet cutting can be found in many different industries and range from producing very small high precision parts to making rough separation cuts of 6” steel plates. OMAX Corporation has taken the lead in addressing precision cutting...

Impact of Residual Stresses on Accuracy of AWJ Cutting

As the accuracy of abrasive waterjet (AWJ) machines is improving, a wider range of process variables are receiving attention regarding their impact on the accuracy of AWJ cut parts. Residual stress is one of these process variables. In this experimental study, AWJ tests cutting steel samples with and without residual stresses were conducted. The results indicated a strong link between residual...

Determination of Machinability and Abrasive Cutting Properties

Modern abrasive waterjet machines require precise parameter settings to meet the everincreasing precision demand. Machinability and abrasive index are two important parameters for abrasive waterjet cutting. The latest software uses a cutting model that takes the inputs of machinability, abrasive index, and other process parameters to predict the jet behavior so that compensation can be made to...

Recent Development in Abrasivejet Software

There are two functions for software in abrasive waterjet machining. First, software is used to transform the design intent into a tool path. This is generally referred to as CAD-CAM software and this field has been improving rapidly with multiple vendors in the market. While important for ease of geometry input, it has little effect on part production cost. The second function for software is...

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