The waterjet cutting technology area has information on the machines and processes, but it doesn't stop there. It also covers abrasives, hoses, nozzles, and pumps.
May 9, 2006
High-pressure abrasive and waterjet cutting systems have unique properties that must be understood to maximize performance and ensure safety. This article discusses the principles of water compressibility and pressurization, metal fatigue, high-pressure plumbing, seals, valves, and making and installing ultrahigh pressure fittings.
April 11, 2006
Jay Leno's car collection, housed at the Big Dog Garage in Burbank, Calif., is not meant to collect dust. These cars are to be driven. Bernard Juchli is in charge of that, and now he has a waterjet to help him fabricate hard-to-find or non-existent parts and to keep the cars on the road.
April 11, 2006
How do you get to Hollywood? Ride a motorcycle when you're 3 years old, start welding at 8, and rebuild a car engine at 9—if you want to be the lead fabricator on American Chopper, that is, one of the most popular metal fabrication-as-entertainment reality cable TV shows airing on the Discovery Channel. Paul Sr. and Paul Jr. Teutul are the highly visible father-son pair usually featured in the media. But it is Vincent DiMartino who is the fabricator behind the bikes, the muscle behind the biceps, the grin behind the guns. Vinnie surmised that the automated waterjet from Flow Intl., Kent, Wash., is probably the most sophisticated equipment he uses, and that much of what he fabricates for the choppers is cut on OCC's waterjet.
January 10, 2006
Clamping the workpiece against sideways motion and weighting it against vertical motion will prevent part loss and improve part quality in waterjet machining. This article offers practical fixturing suggestions for both cutting from flat sheet and adding features to existing parts.
April 11, 2005
When Waterjet Extreme Technologies (WET), Great Falls, Mont., was asked to bid on a large and lofty fabrication project as part of the Great Falls International Airport redesign, co-owners John Kramarich and Rip Rippetoe viewed the inherent challenges as opportunities to explore the limits of their capabilities while dealing with a limited budget.
March 8, 2005
Figure 1Abrasive 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 empirical data...
September 14, 2004
Abrasive waterjet's cold-cutting and omni-directional capabilities make it especially well-suited to cutting unusual shapes out of exotic and heat-sensitive materials. Also, because abrasive waterjet is a cold-cutting process, it does not create a heat-affected zone (HAZ), which can make it more difficult to execute downstream processes, such as welding.
May 4, 2004
Thinking ahead during the design stage of a fabrication always saves manufacturing costs later. This is also true for the parts cut with a precision waterjet. Part production time, assembly time, fixturing, and weld preparation time all can be saved. Even design time can be saved by following drafting standards that permit cutting directly from the design's CAD file.
January 13, 2004
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...
September 10, 2003
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 of...
July 24, 2003
When Jack Budd, president of Precision Waterjet, Orange, Calif., purchased his first waterjet system seven years ago, he expected most of the company's work to come from the aerospace industry, which was robust at the time. When business from that industry tapered off, he searched for new customers in the architectural, signage, and automotive aftermarket industries.
June 26, 2003
Editor's Note: This article is the third in a series intended to help a prospective user evaluate abrasive jet machinery. The first article, Buying an abrasive jet machine, compared the abrasive jet process with other cutting processes. The second article, Software for abrasive waterjet machining,...
April 15, 2002
Abrasive waterjet cutting may or may not be right for your particular application; but, knowing all you can about the process and its pros and cons can help you make that decision better.