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The name 鈥淐NC鈥?actually stands for Computer Numerical Control and it represents one of two common methods to generate prototypes from a digital software file. CNC machines are electro-mechanical devices that manipulate machine shop tools using computer programming inputs. The first CNC machines were developed in the 1940s and 50s and relied on a common telecommunication data storage technology known as 鈥減unched tape鈥?or 鈥減erforated paper tape.鈥?Punched tape technology is long obsolete as the data medium quickly transitioned to analog and then digital computer processing in the 1950s and 1960s.

Working Processes:-

Machining Stephan El Shaarawy World Cup Jersey , in general, is a way to transform a stock piece of material such as a block of plastic and arrive at a finished product (typically a prototype part) by means of a controlled material removal process. CNC machines commonly combine tools into common units or cells from which the machine can draw. Basic machines move in one or two axes while advanced machines move laterally in the x, y-axis, longitudinally in the z-axis Stefano Sturaro World Cup Jersey , and oftentimes rotationally about one or more axis. Multi-axis machines are capable of flipping parts over automatically, allowing you to remove material that was previously 鈥渦nderneath.鈥?This eliminates the need for workers to flip the prototype stock material and allows you to cut all sides without the need for manual intervention.

Types of CNC Machines
CNC machines typically fall into one the two general categories: Conventional Machining Technologies and Novel Machining Technology.

Conventional Technologies:-
Drills: Drills work by spinning a drill bit and moving the bit about and into contact with a stationary block of stock material.
Lathes: Lathes typically make contact with the material by laterally moving a cutting tool until it progressively touches the spinning material.
Milling Machines: Milling machines are probably the most common CNC machine in use today. They involve the use of rotary cutting tools to remove material from the stock unit.

Novel Technologies:-
Electrical andor Chemical Machining: There are a number of novel technologies that use specialized techniques to cut material. Examples include Electron Beam Machining, Electrochemical Machining, Electrical Discharge Machining (EDM) Stefano Okaka World Cup Jersey , Photochemical machining, and Ultrasonic machining.
Other Cutting Mediums: There are a number of other novel technologies that use different mediums to cut material. Examples include laser cutting machines, oxy-fuel cutting machines, plasma cutting machines Simone Zaza World Cup Jersey , and water-jet cutting technology.
Materials used in CNC Machines are:-
Almost any material can be used in a CNC machine. It really depends on the application. Common materials include metals such as aluminum, brass, copper, steel Salvatore Sirigu World Cup Jersey , and titanium, as well as wood, foam, fiberglass Roberto Soriano World Cup Jersey , and plastics such as polypropylene.

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WINDHOEK, March 22 (Xinhua) -- Namibia Wild Horses Foundation (NWHF) Wednesday said Namib Wild horses, facing dwindling population, would be relocated to protect them from predators.

The association said hyenas are threatening the survival of the wild horses in the Garub area of the Namib Naukluft National Park and if the current rate of death continues, the horses might be extinct by August.

NWHF said that the rate of predation has increased significantly during the past two months.

"The number of mares is down to 42 and we estimate that at this rate the population will be 'functionally extinct', some may still be around but it's inevitable that they will go extinct by August," NWHF added.

According to the association, no foal has survived since 2013 and the horse population has steadily dropped.

"Due to the drought, most of the other migratory game has moved north and east looking for greener pastures which leaves mainly only horses to prey on in the Garub area," NWHF said.

The NWHF and the Environment Ministry concluded that a solution that would be best for both the hyenas and the horses is to move the horses.

According to the NWHF, the ideal location would be somewhere near the Garub area where the horses have lived for over 100 years and where they will still be accessible to the public.

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