Knowledge of CNC Machines

• Proliferation of CNC

  12/1/2009
  
  Having used CNC brush making machinery for a long time? You may be interested in this:
  
  
  The price of computer cycles fell drastically during the 1960s with the widespread introduction of useful minicomputers. Eventually it became less expensive to handle the motor control and feedback with a computer program than it was with dedicated servo systems. Small computers were d..

• Servos and Selsyns

  11/3/2009
  
  One barrier to complete automation was the required tolerances of the machining process, which are routinely on the order of thousandths of an inch. Although it would be relatively easy to connect some sort of control to a storage device like punch cards, ensuring that the controls were moved to the correct position with the required accuracy was another issue. The movement of the tool resu..

• Cams - Earlier forms of automation

  10/16/2009
  
  In the field of CNC brush machinery? You may be interested to know some information about "Cams" - a previous form of automation.
  
  
  The automation of machine tool control began in the 1800s with cams that "played" a machine tool in the way that cams had long been playing musical boxes or operating elaborate cuckoo clocks. Thomas Blanchard..

• Selection of type and size of CNC machining centers

  9/16/2009
  
  The selection of type and size of machining centers depends on several factors, especially:
  
  1) Type of products, their size, and their shape complexity.
  
  2) Type of machining operations to be performed, and the type & number of cutting tools required.
  
  3) Dimensional accuracy required.
  
  4) production rate required.
  
   

• Chracteristics and Selection of CNC Machining Centers

  8/25/2009
  
  Major characteristics of CNC machining centers:
  
  1) Machining centers are capable of handling a wide variety of part sizes and shapes efficiently, economically, respectively, and with high dimensional accuracy with tolerances in the order of +0.0025mm.
  
  2) These machines are versatile and capable of quick changeover from one type of product to another.
  
  3..

• Numerical Controlled Machine

  8/20/2009
  
  Numerical control of machine tools may be defined as a method of automation in which various functions of machine tools are controlled by letters, numbers and symbols.
  
  Basically a NC machine runs on a program fed to it. The program consists of precise instructions about the manufacturing methodology as well as the movements. For example, what tool is to be used, at what speed, ..

• What's CNC?

  7/30/2009
  
  Numerical control (NC) refers to the automation of machine tools that are operated by abstractly programmed commands encoded on a storage medium, as opposed to manually controlled via handwheels or levers, or mechanically automated via cams alone.
  
  The first NC machines were built in the 1940s and '50s, based on existing tools that were modified with motors that moved the contr..

• CNC Routing

  6/16/2009
  
  CNC routing is a cutting process in which material is removed from a sheet by a rotating tool.
  
  For CNC routing, the cutting tool is moved mainly in two dimensions (except for plunging on the Z axis) to achieve the desired part shape. For CNC routing the cutting tool usually rotates about an axis that is perpendicular to the table that holds the material to be cut. A c..

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