Posts Tagged ‘water jet’

An Affordable 5 Axis Water Jet

Tuesday, March 19th, 2013

Through dedicated research and development, our waterjet cutting machines are playing an important role in processing metal, steel, titanium, marble, stone, granite, glass, ceramic, plastic and composite materials. With established reputation in quality, service, and unbeatable price, A&V products are enjoyed by our customers worldwide.

In this particular five-axis design, one CNC ultra-high pressure waterjet cutting head contains at least five axis (three linear coordinates and two rotating coordinates) with coordinated processing motion through CNC. Compared to an ordinary waterjet cutting machine, the biggest advantage of a five-axis waterjet design is that the cutting head can rotate in any direction, which can produce a pre-set cut bevel at any angle. According to material type and its thickness, different angle settings can be controlled through computer software, which gives you the ability to have no tapper on your finished cut edge.
five%20axis An Affordable 5 Axis Water Jet
The JETLINE high pressure pump combines all the advantages of KMT Waterjet Systems for waterjet cutting applications. For decades, KMT high-pressure technology has set the standard in this field, offering unrivalled efficiency, high continuous load capability and availability.

The CNC five axis ultra high-pressure water jet cutting machine(KMT intensifier) innovatively adapted the five axis control software in traditional high-pressure water jet control system.

The machine body and supporting table (water tank) have a separate structure. This design eliminates any negative impact to cutting accuracy as a result of any change in the supporting table. This highly stable structure is easy to be locally updated and maintained.

Two Types of Waterjets : Pure Waterjet vs Abrasive Waterjets

Thursday, July 19th, 2012

 

The two types of waterjets are the pure waterjet and the abrasive waterjet. Both have unique capabilities proven a benefit to industry.

iwm 5x10 Two Types of Waterjets :  Pure Waterjet vs Abrasive Waterjets

 Pure Waterjet

Pure waterjet is the original water cutting method. The first commercial applications were in the early to mid 1970s, and involved the cutting of corrugated cardboard. The largest uses for pure waterjet cutting are disposable diapers, tissue paper, and automotive interiors. In the cases of tissue paper and disposable diapers the waterjet process creates less moisture on the material than touching or breathing on it. Unplanned down time, common to other cutting processes, cost over $20,000 per hour (US dollar) in some diaper or tissue plants. The waterjet provides the 24 hour per day, 7 day per week, 360 day per year operation required by such applications – maintenance can be scheduled into production.

Pure waterjet attributes:

VERY THIN STREAM (0.004 TO 0.010 INCH IN DIAMETER IS THE COMMON RANGE)

EXTREMELY DETAILED GEOMOETRY

VERY LITLE MATERIAL LOSS DUE TO CUTTING

NON-HEAT CUTTING

CUT VERY THICK

CUT VERY THIN

USUALLY CUTS VERY QUICKLY

ABLE TO CUT SOFT, LIGHT MATERIALS (E.G., FIBERGLASS INSULATION UP TO 24”

THICK)

EXTREMELY LOW CUTTING FORCES

SIMPLE FIXTURING

24 HOUR PER DAY OPERATION

 

Pure Waterjet Cutting Heads

As you may recall from an earlier section of this document, the basic waterjet process involves water flowing from a pump, through plumbing, and out a cutting head.

 In waterjet cutting, the material removal process can be described as a supersonic erosion process. It is not pressure, but stream velocity that tears away microscopic pieces or grains of material. Pressure and velocity are two distinct forms of energy. But how is the pump’s water pressure converted to this other form of energy, water velocity? The answer lies in a tiny jewel. A jewel is affixed to the end of the plumbing tubing. The jewel has a tiny hole in it. The pressurized water passes through this tiny opening changing the pressure to velocity. At approximately

40,000 psi the resulting stream that passes out of the orifice is traveling at Mach 2. And at 60,000 psi the speed is over Mach 3.

 

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Question: How hot is the water in a Mach 3 waterjet stream?

Answer: The water is warmed as it is accelerated to high speed. Frictional forces and other

factors warm the stream as it exits the orifice. In let water temperature provides the starting point.

Water temperature is then raised 2 to 3 degrees for each 1,000 psi. The quick answer is the

Mach 3 jet is approximately 170 to 180 degrees F.

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Pure waterjet orifice diameter ranges from 0.004 to 0.010 inch for typical cutting. When waterblasting concrete with a nozzle traversing back and forth on a tractor, a single large orifice of up to 1/10th of an inch is often used.

The three common types of orifice materials (sapphire, ruby, diamond) each have their own unique attributes. Sapphire is the most common orifice material used today. It is a man-made, single crystal jewel. It has a fairly good quality stream, and has a life, with good water quality, of approximately 50 to 100 cutting hours. In abrasive waterjet applications the sapphire’s life is ½ that of pure waterjet applications.

Ruby can also be used in abrasive waterjet applications. The stream characteristics are well suited for abrasivejet, but are not well suited for pure waterjet cutting. The cost is approximately the same as the sapphire.

Diamond has considerably longer run life (800 to 2,000 hours) but is 10 to 20 times more costly.

Diamond is especially useful where 24 hour per day operation is required. Diamonds, unlike the other orifice types, can sometimes be ultrasonically cleaned and reused.

776px Evolution of the Abrasive Waterjet Nozzle Two Types of Waterjets :  Pure Waterjet vs Abrasive Waterjets

Abrasive Waterjets

The abrasive waterjet differs from the pure waterjet in just a few ways. In pure waterjet, the supersonic stream erodes the material. In the abrasive waterjet, the waterjet stream accelerates abrasive particles and those particles, not the water, erode the material. The abrasive waterjet is hundreds, if not thousands of times more powerful than a pure Waterjet. Both the waterjet and the abrasive waterjet have their place. Where the pure waterjet cuts soft materials, the abrasive waterjet cuts hard materials, such as metals, stone, composites and ceramics. Abrasive waterjets using standard parameters can cut materials with hardness up to and slightly beyond aluminum oxide ceramic (often called Alumina, AD 99.9). In the next section we will explore abrasive waterjet attributes and how the abrasive waterjet cutting head works.

Abrasive Waterjet attributes:

EXTREMELY VERSATILE PROCESS

NO HEAT AFFECTED ZONES

NO MECHANICAL STRESSES

EASY TO PROGRAM

THIN STREAM (0.020TO 0.050 INCH IN DIAMETER)

EXTREMELY DETAILED GEOMETRY

THIN MATERIAL CUTTING

10 INCH THICK CUTTING

STACK CUTTING

LITTLE MATERIAL LOSS DUE TO CUTTING

SIMPLE TO FIXTURE

LOW CUTTING FORCES (UNDER 1 LB. WHILE CUTTING)

ONE JET SETUP FOR NEARLY ALL ABRASIVEJET JOBS

EASILY SWITCHED FROM SINGLE TO MULTI-HEAD USE

QUICKLY SWITCH FROM PURE WATERJET TO ABRASVIE WATERJET

REDUCED SECONDARY OPERATIONS

LITTLE OR NO BURR

Abrasive Waterjet Cutting Heads

Within every abrasive waterjet is a pure waterjet. abrasive is added after the pure Waterjet stream is created. Then the abrasive particles are accelerated, like a bullet in a rifle, down the mixing tube.

 The abrasive used in abrasive waterjet cutting is hard sand that is specially screened and sized.

The most common abrasive is garnet. Garnet is hard, tough and inexpensive. Like the pink colored sandpaper found at the hardware store, different mesh sizes are used for different jobs.

120 Mesh – produces smooth surface

80 Mesh – most common, general purpose

50 Mesh – cuts a little faster than 80, with slightly rougher surface.

The mixing tube acts like a rifle barrel to accelerate the abrasive particles. They, like the orifice, come in many different sizes and replacement life. Mixing tubes are approximately 3 inches long,

¼ inch in diameter, and have internal diameters ranging from 0.020 to 0.060 inch, with the most common being 0.040 inch.

Although the abrasive waterjet machine typically is considered simple to operate and ‘bullet proof,’ the mixing tube does require operator attention. A major technological advancement in Waterjet was the invention of truly long-life mixing tubes. Unfortunately, the longer life tubes are far more brittle than their predecessors, tungsten carbide tubes. If the cutting head comes in contact with clamps, weights, or the target material the tube may be broken. Broken tubes cannot be repaired. Today’s most advanced systems incorporate collision detection to spare the mixing tube.

The standoff distance between the mixing tube and the target material is typically 0.010 to 0.150 inch. Larger standoff (greater than 0.080 inch) can cause a frosting to appear atop the cut edge of the part. Many Waterjet systems reduce or eliminate this frosting by cutting under water or using other techniques.

The consumable items in an abrasive Waterjet are the water, abrasive, orifice (usually Ruby) and mixing tube. The abrasive and mixing tube are exclusive to the abrasive waterjet. The other consumables are also found in the pure waterjet.

Jet Edge Aquavision Slimline PC Upgrade!

Tuesday, January 17th, 2012

Upgrade now to a more robust PC with an industrial motherboard with Embedded Windows 2009(XP), an Intel Core, 2.93GHz, 4MB Dual-Core Processor, 2GB RAM, 160GB hard drive, 24X DVD+R DVD Writer, USB Port Hub, new Digital I/O board and new Encoder input card.
The motion system software has been updated to run on the most recent release of Embedded
Windows 2009 (XP). From an end user standpoint, everything operates the same but now the
controller is more networkable (end user must congure their own network connection as Jet
Edge doesn’t provide networking support) and supports USB!

1 8 2012 6 50 04 PM Jet Edge Aquavision Slimline PC Upgrade!

How Does Water Jet Cutting Machine Work

Sunday, January 8th, 2012

A water jet machine has essentially two components: a high intensity pump that pressurizes water to 40,000 — 90,000 PSI , and a cutting head assembly mounted on a frame that can move along the  x-y-z direction over the material being cut. Pressurized water is forced through a tiny nozzle hole to create high energy density stream that can erode and tear the surface of materials to achieve a cutting affect.  Pure water ca alone can cut plastics, foam, wood, resilient floor coverings, rubber and similar soft substances.  In some cases, water is mixed with a garnet abrasive to cut harder materials such as metals, stone, ceramics, glass and dense composites.

1 8 2012 9 40 00 AM How Does Water Jet Cutting Machine Work1 8 2012 9 44 12 AM How Does Water Jet Cutting Machine Work

 

 

 

 

IWM CNC Waterjet Pipe Engraving Machine

Monday, August 22nd, 2011

water jet pipe cutting IWM CNC Waterjet Pipe Engraving Machine

The cutting table can rotate the pipe when cutting. The rotation speed is adjustable to suit various cutting speed needs due to different wall thickness and type of the materials. Position of the cutting head is also adjustable to fit different diameters of the pipe. The cutting head can slide along the length of the table to choose desired cutting position. There is an abrasive hopper mounted on the same rail of the cutting head for feeding abrasive to the cutting head. Customer should specify the weight of the pipe when order the machine.

pipe engraving IWM CNC Waterjet Pipe Engraving Machine

Special tracks can be ordered to cut different shapes of holes into the pipe wall instead of cutting off the pipe.

The waterjet pump is 50 hp and when cutting with abrasive, the max thickness of mild steel is 60mm. The pump requires 3 phase electricity power supply of 220V — 480V, 50 or 60 Hz, (specified by the customer). The pressurized water is fed to the cutting head through a high pressure whip tubing.

China Steel Installs Massive 24’x13’ 90KSI Jet Edge Waterjet Machine

Friday, July 29th, 2011

China Steel, a custom fabrication and machine shop in Sault Ste. Marie, Ontario, recently added a massive 90KSI Jet Edge waterjet cutting machine capable of cutting virtually any material up to 24’x13’.

With its 100hp 90KSI Jet Edge X-Stream powered system, China Steel (pronounced “keena”) can cut parts up to 50% faster than waterjet shops with standard 60KSI waterjets. They also can cut large parts twice as fast with dual abrasivejet cutting heads with mirroring capabilities.

7 27 2011 8 22 56 PM China Steel Installs Massive 24’x13’ 90KSI Jet Edge Waterjet Machine

Established in the late 1950s, China Steel continues to be owned and operated by the China family, which traces its proud metalworking heritage to early 19th Century blacksmiths and metalworkers in Friuli, Italy. Under President Fred China and brother Vice President Carlo China’s direction, China Steel has grown to become a diversified and technologically advanced metalworking plant with sales worldwide.

The multi-disciplined ISO 9001:2008-registered shop offers many metalworking services, including CNC and conventional machining, milling, turning, boring, bending, cutting, rolling, pipe processing, robotic welding and much more. It manufactures a wide range of custom products, including fabricated plate products, structural steel, decorative metalwork and machined parts. Its diverse projects have included everything from decorative staircases to locomotive underframes to dozens of parts for the U.S. Army Stryker armored vehicles to stainless steel dewatering wheels for steel mills in the Ukraine and India.

 

China Steel has always kept a sharp competitive edge by diversifying their products and services and by continually investing in the latest technology, explained Carlo China. “In order to stay in business, you have to be diversified and keep up with technology,” Carlo noted. “If you don’t keep up with technology, you might as well put a lock on the door.” It was the company’s belief in diversification and technology that compelled them to purchase not just a waterjet system, but to invest in one of the largest and most powerful waterjets available.

JACQUET Mid Atlantic Adds 4th Jet Edge Water Jet Cutting Machine

Monday, July 11th, 2011

Metal Service Center Jacquet waterjet 300x199 JACQUET Mid Atlantic Adds 4th Jet Edge Water Jet Cutting Machine

Metals Processing and Distribution Center Specializes in Stainless Steel, Nickel Alloys

POTTSTOWN, Pa. (June 22, 2011) – Waterjet systems manufacturer Jet Edge, Inc. is pleased to announce that JACQUET Mid Atlantic has added a fourth Jet Edge water jet cutting machine at its metal processing facility in Pottstown, Pa.  The Mid Rail Gantry system is JACQUET’s ninth Jet Edge waterjet nationwide.

JACQUET Mid Atlantic’s newest waterjet cutting machine is capable of cutting materials up to 21’x13’.   It features two abrasivejet cutting heads with mirroring capabilities to cut large parts twice as fast. Powered by a 100hp, 60,000 psi water jet intensifier pump, the system features independent programmable Z carriages, programmable height sensing, a submerged cutting package, closed-loop water filtration, and a garnet removal system.

A subsidiary of Jacquet Metals of Lyon Saint Priest, France, JACQUET Mid Atlantic is one of five JACQUET metal service centers in North America. The company also has service centers in Charlotte, Houston, Racine, Wis., and Irvine, Calif.

JACQUET specializes in supplying and processing stainless steel and nickel alloys for OEMS, fabricators and machine shops that support primarily the oil and gas, power generation, pollution control systems and water purification industries. JACQUET’s North American service centers provide waterjet and plasma part cutting.  The company stocks 19 different grades of stainless steel and nickel alloy plates in a wide variety of sizes and thicknesses.

 

Jet Edge Introduces New 150hp, 60KSI Waterjet Intensifier Pump

Monday, May 16th, 2011

iP60 150 Pump Jet Edge Introduces New 150hp, 60KSI Waterjet Intensifier PumpST. MICHAEL, Minnesota, U.S.A. (May 11, 2011) –  Jet Edge, Inc. is pleased to introduce the new 150hp, 60,000 psi iP60-150 waterjet intensifier pump.  The Jet Edge iP60-150 water jet pump is capable of producing up to 3 gallons per minute (11.4 l/min) of ultra-high pressure water for precision water jet cutting  and UHP surface preparation applications. It supports orifices up to .025” (.64 mm) and features dual intensifier systems.

iP60-50 Water Jet Pump Specifications

The iP60-150 includes numerous design improvements, including an efficient kidney loop hydraulic cooling and filtration system, an anti-corrosive interior coated hydraulic reservoir, easy-to-remove lift-off covers, and touch-screen controls.  The pump’s motor drive assembly has been mounted on an isolation system to reduce noise and vibration.

90kjetedge Jet Edge Introduces New 150hp, 60KSI Waterjet Intensifier Pump

Like all Jet Edge waterjet pumps, the iP60-150 features Jet Edge’s reliable tie-rod design. This design has no threaded cylinder, no threaded end caps, and no threaded hydraulic cylinder, making it less prone to cracking than threaded designs. Jet Edge water jet pumps feature hydraulic accumulators, which reduce wear on the hydraulic pump, and a rugged hydraulic center section which incorporates high-duty cycle-rated piston seal and wear rings. Jet Edge’s hydraulic systems have a 4,000-hour warranty.  Jet Edge water jet pumps also feature attenuators which smooth pressure fluctuations and deliver a constant and steady stream of UHP water to the cutting tool, ensuring optimal cut quality.

 

Water Jet Multi-Axis Cutting

Wednesday, May 11th, 2011

5 Axis Water Jet Cutting Head  Water Jet Multi Axis Cutting
With recent advances in control and motion technology, 5-axis water jet cutting (abrasive and pure) has become a reality. Where the normal axes on a water jet are named X (back/forth), Y(left/right) and Z (up/down), a 5-axis system will typically add an A axis (angle from perpendicular) and C axes (rotation around the Z-axis). Depending on the cutting head, the maximum cutting angle for the A axis can be anywhere from 55, 60, or in some cases even 90 degrees from vertical. As such, 5-axis cutting opens up a wide range of applications that can be machined on a water jet cutting machine.

A 5-axis cutting head can be used to cut 4-axis parts, where the bottom surface geometries are shifted a certain amount to produce the appropriate angle and the Z-axis remains at one height. This can be useful for applications like weld preparation where a bevel angle needs to be cut on all sides of a part that will later be welded, or for taper compensation purposes where the kerf angle is transferred to the waste material – thus eliminating the taper commonly found on water jet-cut parts. A 5-axis head can cut parts where the Z-axis is also moving along with all the other axis. This full 5-axis cutting could be used for cutting contours on various surfaces of formed parts.

5 Axis Water Jet Part  Water Jet Multi Axis CuttingBecause of the angles that can be cut, part programs may need to have additional cuts to free the part from the sheet. Attempting to slide a complex part at a severe angle from a plate can be difficult without appropriate relief cuts.

 

Water Jet Cutting – Edge Quality Comparison

Monday, May 2nd, 2011

Edge quality for water jet cut parts is defined on a scale of 1 through 5. Lower numbers indicate rougher edge finish; higher numbers are smoother. For thin materials, the difference in cutting speed for Quality 1 could be as much as 3 times faster than the speed for Quality 5. For thicker materials, Quality 1 could be 6 times faster than Quality 5.

For example, 4” thick Aluminum Q5 would be 0.72 ipm (18 mm/min) and Q1 would be 4.2 ipm (107 mm/min), 5.8 times faster.

Water jet Edge qualities Water Jet Cutting   Edge Quality Comparison