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Drilling in metal

Drilling is one of the main types of metal processing. The drilling process is processing metal rotating cutting tool drill for getting different depth and diameter of the holes in the material. The depth and diameter of the hole is the key parameters on which the process of drilling. As there are two main types of holes produced during the drilling process:

  •   Drilling through holes
  •   Drilling blind holes.

Typically, the drilling process is used for the subsequent placement in holes received different fasteners, parts other parts of metal structures or pulling cable.
The drilling process is no greater than manufacturing recess with a special core point in subsequent drilling, and drilling of holes product by passing through a rotary drill bit at a high speed.

 

It should be noted that the speed of rotation of the drill and the so-called flow (pressure exerted on the drill blank) pre-programmed on a special machine. It is important to choose the right drill diameter and the alloy from which the drill bit is made. It is important to remember that the diameter of the resulting hole will be larger than the diameter of the drill. On modern machines manufactured with software, accuracy and speed of production drilling holes is much higher than manual production holes. In the process of drilling on the drill is great pressure on the drill processed in cutting fluids, which helps extend the life of drill and a clean surface produced holes.

By appointment process of drilling are divided into:

  1.      Drilling holes for threaded bolts, boring, reaming and deployment. 
  2.      Drilling holes for placement of the fasteners and wires, etc.
  3.      Drilling holes to separate pieces of sheet metal.

Just following types of drilling:

  1.      Conventional drilling cylindrical holes.
  2.      Drilling of various polyhedral or oval holes.
  3.      Drilling to increase the diameter of the cylindrical holes (boring).

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