Water cutting, also known as water jet knife, referred to a kind of high-pressure water jet cutting technology, it’s high-pressure water cutting machine. Under the control of the computer, the workpiece can be carved arbitrarily, and it is less affected by the processed material quality. Due to its easy operation and good yield, water cutting is gradually becoming the mainstream cutting method in industrial cutting technology.



Early water cutting because the pressure of water is very small, and no abrasive is added, it can only be used to cut paper and other soft, low strength materials,which means its application range is very narrow.


ノーマンフランツ博士は常にウォーターナイフの父として認められてきました。彼は超高圧(UHP)ウォーターナイフ切断ツールを研究した最初の人物でした。超高圧は30 000 psi以上と定義されています。林業技術者のフランツ博士は、大きな幹を木に切り込む新しい方法を見つけたかったのです。 1950年に、フランツは最初に重い物体を水柱に置き、水を小さなノズルから押し出しました。彼は短い高圧ジェット(数回現在の圧力を超える)を取得し、木材やその他の材料を切断することができました。彼のその後の研究はより連続的な流れを含んでいたが、彼は連続的な高圧を得ることは非常に困難であることがわかりました。同時に、部品の寿命は、今日の数週間または数か月ではなく、分単位で計算されます。


In 1979, Dr. Mohamed Hashish began to study ways to increase the cutting energy of water knives in Frow's research laboratory to cut metals and other hard materials. Dr. Hashish is recognized as the father of sand water knife. He invented the method of adding sand to an ordinary water knife. He uses garnet (a material commonly used on sandpaper) like sand. With this method, water knives (containing sand) can cut almost any material. In 1980, and water cutters were first used to cut metals, glass, and concrete.


The water-cut water jet starts from a pressurized pump and passes through a high-pressure mixing tube to produce a pressure of 60,000 PSI, which is then ejected from the cutting nozzle. During the design process, small leaks can permanently damage the components and cause damage. Therefore, manufacturers and engineers will carefully handle the processing of high-pressure materials, using special technology to combine such machines. Users only need to know basic operational knowledge.

切断機は1982年に業界で採用され、1970年に初めて導入されました。主に自動車、航空宇宙、ガラス業界で使用されており、これらの切断から精度が継続的に向上しています。アブレイシブカッターは55,000 PSIの圧力に達し、音速の2.5倍である762 m / sの速度で小さなノズルから噴射されます。

Mixing the pomegranate sand into this high-speed water jet, mixing it in a mixing tube and then directly ejecting it from the sand tube to the material being processed at a speed of 305 m/s. This cutting process is actually a grinding and cutting process. The process, this power and movement are all produced by water.


The booster pump pressurizes the water again to achieve the desired pressure. It is worth noting that the abrasive cannot be added to the water or high-pressure water line because the line will wear through quickly. Therefore, it can only be added to the nozzle position to mix water and abrasive. At the same time, it can't be too close to the exit, because it is necessary to give him a speed to accelerate, only the abrasive has a certain flow rate to have the cutting ability. In order to avoid the abrasive mixing of the abrasive and water, the water cutting nozzles are made of very hard, high strength materials such as tungsten carbide ceramic composites.


















ウォーターカットスリットは、ナイフチューブの直径よりも約10%大きく、通常は0.8〜1.2 mmです。サンディングチューブの直径が拡大するにつれて、切り込みが大きくなります。



6月 17, 2022

It was really informative when you talked about how water jet cutting can be used to cut materials like marble and metal. Is water jet cutting used for shaping marble that is used for countertops? As far as I know, countertops are often found in many unique shapes, so it makes sense if water jetting is used in this industry.

6月 17, 2022

Hi Henry,
Yes, waterjet cutting technologies can definitely be used in cutting countertops, and it is very similar to marble cutting.

7月 29, 2022

Ich wusste nicht, dass das Wasserstrahlschneiden damals nur zum Schneiden von Papier verwenden werden konnte. Heute ist da eine unglaubliche Kraft dahinter. Mein Vater erzählt mir da ab und zu von seiner Arbeit.


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