Young inventors Dan Hicken and Mitchell Fillmore of Bountiful, Utah have created a unique 400 MPa waterjet cutting device. This was enough to cut a car battery in half in a matter of seconds. The video of the cutting episode has already received over 111, 000 views.
It may appear that a huge amount of water is consumed during the cutting process. In fact, the flow rate is only 4.5 l / min. The secret to such a high efficiency lies in the combination of high pressure and abrasive in the form of fine granite sand, which is pumped through a nozzle with a diameter of a sewing needle.
During cutting, the nozzle moves along a certain path at a given speed. Depending on the material from which the object is made, the pressure and cutting speed are selected.