For cutting sheet metal or other work by means of a jet of water containing abrasive particles, an abrasive water jet nozzle assembly is provided to which there are separately supplied highly pressurized water and an abrasive suspension. The abrasive suspension is such that abrasive particles with an average size of up to 100 microns are held in suspension in water. The abrasive suspension is introduced into the ejected water by virtue of a partial vacuum created in the nozzle assembly by the pressurized water. The nozzle assembly directs the resulting mixture as an abrasive water jet against the work for cutting thereof. Preferably, the abrasive water jet is recovered for recirculation back to the nozzle assembly as an abrasive suspension of controlled abrasive concentration. Various constructions of the nozzle assembly and various recovery systems are also disclosed.

Abrasive water jet cutting apparatus

Fluid jet cutting system with nozzle assembly having a monolithic main body with a central fluid passageway with fixed diameter intermediate fluid jet passageway with orifice component at un upper end. The upper end of a modified focus tube is positioned directly below the outlet of the fluid jet passageway such that the enlarged opening at the upper end of the focus tube forms the mixing chamber. This avoids the high cost of mixing chamber wear inserts. The enlarged upper end opening has a diameter equal to or larger than a circumferential ring contacting the external most portion of the outlet of each of the preferably 3 or 4 abrasive ports spaced about the main body. The focus tube with mixing chamber enlargement avoids efficiency degrading abrasive contact with wall surfaces of the nozzle assembly. The abrasive ports extend from an upper, sloped surface of the main body to the abrasive ports outlet with the central axis of the abrasive ports forming an acute angle of less than 15 degrees. This angle minimization results in less efficiency degrading horizontal velocity components in the abrasive feed through the nozzle assembly, and also reduces surface wear contact in the main body since the abrasive ports dump the abrasive more along the central axis of the fluid filled fluid passageway and less into the side walls of the nozzle assembly and more into the fluid stream directly in a mixing region provided by the enlarged focus tube mixing chamber. The mixing chamber is preferably in the form of a deepened V configuration with a non-converging, uppermost section (e.g., a cylindrical section) having the largest diameter and a lower positioned converging section spaced below. The low wear features allows for the focus tube and main body to be formed of a material that is relatively less expensive than the high abrasion resistant material wear inserts.

Fluid jet cutting and shaping system

An abrasive liquid jet cutting system has a cutting head for directing a jet of ultra high pressure water and grit to a work piece. The jet cuts the work piece in a desired pattern to form a product. The liquid from the jet, grit, and particulate materials of the work piece are collected with a receiver located generally below the cutting head. Controls for both the cutting head and receiver are coordinated to move the receiver along with the cutting head so that the water and particulate materials are collected by receiver. The receiver has an upright tubular member provided with wear resistant sleeves and an upright central rod to absorb the impact forces of the water and particulate materials that move through the receiver. A drive means connected to the tubular body operates to continuously rotate the tubular body, sleeves and rod to distribute the wear around the sleeves and rod caused by the water, grit and particulate materials that impinge thereon.

Abrasive waterjet receiver

A processing apparatus for use in the processing of transverse fish body sections includes a support frame and a video camera for providing a video image of a transverse fish body section to be processed when aimed at the fish body section along a preselected line of sight. A fish section support is provided for supporting the transverse fish section substantially over its area. The support can be invisible on the video photo image and preferably includes a plurality of spaced apart beams which are of a small dimensional width so that they do not appear on the video photo image that contains the fish body sections. A fluid jetting knife is movable with respect to the transverse fish body section for cutting the section with a pressurized fluid stream and positioned to traverse both the fish section and the support means during the cutting operation.

Support apparatus for use in video imaging and processing of transverse fish sections

An imaging system includes a method and apparatus for use in processing fish body sections that have been transversely cut. The system uses a frame with a pair of shrouds (14,15), each having an interior space that contains an illumination system for illuminating the fish section. A pair of video cameras (48,49) housed respectively within the shrouds scan opposed flat sides (26,27) of the fish section to produce images of the respective sides. Screens (29,30) move behind the fish section in sequential fashion as each camera scans the fish section.

Imaging system for use in processing transversely cut fish body sections

A fluid jet cutting apparatus includes a energy 
dissipating receptacle (10) for high velocity fluid 
jets. The energy dissipating receptacle (10) comprises 
a highly permeable container (12), a plurality of 
suspensoids (34) within said container and collection 
means (16) about the said container to collect and 
evacuate substance exiting the container through the 
perforations.

Energy-dissipating receptacle for high velocity fluid jets

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Imad Kamareddine

Author Tools

Chat about Author

Papers

Energy-dissipating receptacle for high velocity fluid jets