Content tagged with "waterjet"
Results: 24
Spanish
November 12, 2009
Láser y chorro de agua: ¿amigos o enemigos?
Figura 1
Las partes de muestra en tres espesores y dos materiales demuestran las diferencias entre el corte con un láser (izquierda) y con un chorro de agua (derecha). Los espesores de las partes, de arriba a abajo, son 0.125 pulg., 0.5 pulg., y 0.75 pulg. Los materiales son acero... Read more...
Spanish
June 24, 2009
El chorro de agua la hace en grande
El corte con chorro de agua abrasivo podría estar en la cúspide de algo grande. Por años, los fabricantes de metal lo vieron como una máquina nicho, algo que comprar sólo cuando una parte no podía cortarse de ninguna otra forma. Pero en muchos casos actualmente está hombro con hombro... Read more...
Article
April 14, 2009
Putting out fires, the lean way
Figure 1 Crimson Fire managers have transformed the build-to-order shop floor from a traditional batch operation to one based on lean manufacturing. Randon Bernards needs to fill jobs, fast. The fabrication technical lead at Crimson Fire has spent more time interviewing people during the... Read more...
Article
January 27, 2009
Laser and waterjet: friends or foes?
Fabrication has long been a cornerstone of U.S. manufacturing. It plays a central role, providing components and subassemblies to other manufacturing sectors, such as aerospace, appliance, and automotive. Significant advancements in metalworking equipment, materials, and applications have... Read more...
Article
October 14, 2008
Green cutting with waterjets
Photo courtesy of OMAX Are you being green when operating your abrasive jet? Can you feel righteous—like someone getting 40+ MPG in his car—or should you feel a bit guilty about enjoying your high productivity? What are the environmental impacts of abrasive jet cutting?... Read more...
Article
July 15, 2008
Safety in jet cutting
Figure 1
The cutting jet is the most obvious hazard in jet cutting, but is easy to avoid.
All cutting equipment has cutting tools that can cut or otherwise harm humans. The cutting jet itself is the most conspicuous hazard in jet cutting, but there are other hazards to watch for as... Read more...
Article
April 15, 2008
Maximizing waterjet cutting profit
Figure A An 8.75-in.-long electrical panel made from 1/8-in.-thick material
Modern machine controls for waterjet cutting allow you to switch between making a single part slowly at low cost or more quickly at a higher cost. The slower, low-cost method is more profitable for a shop in... Read more...
Article
February 12, 2008
Waterjet makes it into the mainstream
An OMAX waterjet performs precision cutting. Today precision waterjet cutting often can eliminate secondary finishing operations.
Abrasive waterjet cutting could be on the cusp of something big. For years metal fabricators viewed it as a niche machine, something to buy only when a part... Read more...
Article
December 11, 2007
Pumping up the waterjet power
Figure 1
A simple pump shows the relationship between mechanical power input and jet power output.
It is easy to see that doubling a waterjet pump's horsepower should at least double the cutting speed. Indeed, with double the pumping power, you could run two nozzles and produce... Read more...
Article
August 8, 2007
Jet cutting accessories
Many shops today, from R&D companies that make a few parts per week to production shops that run 24/7 making hundreds of parts per day, use waterjet cutting. Part sizes range from a fraction of an inch to many feet. These shops have differing needs, so they need different accessories... Read more...
Article
June 12, 2007
Recent developments in abrasive jet software
Figure 1
Jet Lag at High Feed Rate
Software serves two functions in abrasive waterjet machining. First, software generally referred to as CAD/CAM is used to transform the design intent into a tool path. This type of software has improved rapidly, and multiple vendors serve this... Read more...
Article
May 8, 2007
Waterjet accelerates pace, provides speed secret
As you descend the Appalachian Mountains of Virginia south into sunny Huntersville/ Mooresville, N.C.—so-called Race City USA—you can almost feel the ground rumble. Eateries have names like "Pit Stop," and service stations are called "Raceways." Diehard race fans fan the area,... Read more...
Article
February 13, 2007
Economic considerations when purchasing a jet cutting machine
The purpose in buying machinery is to make money with it. Buying nothing costs nothing, but makes no money. A premium jet cutting machine costs more than a standard machine, but the better machine usually is designed to enhance productivity. The equipment must match the work it is intended... Read more...
Article
October 10, 2006
Machine components you can fabricate with an abrasive jet
Figure 1 Lathe Screw Cutting Drive Train An article published previously on thefabricator.com, How one shop benefited from abrasive waterjet technology , presented novel construction techniques that can be implemented effectively with an abrasive waterjet machine to lower the... Read more...
Article
May 9, 2006
What you need to know about high-pressure equipment
Abrasive and waterjet cutting equipment operates at pressures up to 60,000 pounds per square inch (PSI). Most shops have no other equipment operating at such high pressures and little experience working with high pressure. This article explains the unusual physical phenomena that affect... Read more...
Article
April 11, 2006
Bernie and the jet
What do you give one of the world's most recognized entertainers who owns a collection of 84 cars and 73 motorcycles? A waterjet sounds appropriate. Of course, the waterjet won't help Jay Leno with his "Tonight Show" monologues, but it has done wonders in terms of keeping his car and... Read more...
Article
January 10, 2006
Fixturing for abrasive jet machining
Abrasive jets are used for machining many materials and parts. Workpieces that can be abrasive jet-machined range from glass artwork to high-precision stamping dies. No known fixture serves all applications. Like most other machine tools, abrasive jet machines ship with only the minimum... Read more...
Article
November 8, 2005
Trailblazing with waterjet
With waterjet cutting, Johnson Enterprises has been able to attract new customers outside of its core sawmill industry customer base. A long way from its modest machine shop beginnings 20 years ago, Johnson Enterprises Inc. in Val D'Amour, New Brunswick, Canada, has become a leading... Read more...
Article
March 8, 2005
Abrasive Jet Mechanics
Figure 1 Abrasive jet users need in-depth knowledge of nozzle mechanics, either for practical reasons, or simply to have the satisfaction of knowing what their machines really are doing. Two types of information fabricators need are generally known accepted physical laws, and... Read more...
Article
May 4, 2004
Designing for abrasive waterjet fabrication
Designers need to be familiar with some abrasive waterjet machining features to minimize overall cost. Some of these concepts also may apply to laser, plasma and oxyfuel cutting. Drafting Practices All projects begin with a design, which usually is prepared with a CAD program. Almost all... Read more...
Article
January 13, 2004
Improving waterjet cutting precision by eliminating taper
The balance between waterjet cutting production rate and part precision always has been difficult to achieve because of the jet's complex behavior. Because its shape at any point along the tool path is a result of multiple independent variables — including the speed and acceleration with... Read more...
Article
September 10, 2003
Pumps for abrasive jet cutting
This is the last of four articles intended to help a prospective buyer evaluate the wide range of abrasive jet machinery on the market. The first article covers the abrasive jet process itself in comparison with other cutting processes to help the prospective buyer understand the pros and cons... Read more...
Article
March 13, 2003
Software for abrasive water jet machines
Editor's note: This is the second of four articles intended to help a prospective buyer evaluate the wide range of abrasive jet machinery on the market. The first article, H2Olsen: Buying an abrasive jet machine: Is the process right for you? , covers the abrasive jet process in comparison... Read more...
Article
April 15, 2002
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