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CNC-CMM & Poisson Distribution
Finance & Accounting
Pages 6 (1506 words)
CNC-CMM & Poisson Distribution (#513818) 1. Development and Advances in CN-CMM A CMM or Coordinate Measuring Machine is a type of robot which is capable of moving along the three Cartesian coordinates. A probe attached to it feels the surface of the object along definite points thereby generating dimensions in x, y and z coordinates.
(Spitz Steven Nadav, 1999) A whole set of comprehensive algorithms are used to generate program in the CNC or Computer Numerically Controlled machine so that that the CMM is completely automated and the dimensions obtained are exact after accounting all the tolerances. Source: www.mitutoyo.com, 2006, measuring surface profiles of cars The Inspection probing system Probes are usually classified as contact probes and non-contact probes. Contact probes generate dimensions by physically touching the work piece while non-contact probes do not require physical contact. (Spitz Steven Nadav, 1999) Hard probes are the most simple of probes; the accuracy of which depends on the skill of the operator. The probe is made to have contact with the component and the dimensions generated after compensating for probe diameter. These are used to measure distances between components and diameter and the angles at which bores are located in a work piece. (Genest David, 1999) Source: www.mitutoyo.com, 2006, Inspection probing system Touch trigger probes remove the manual part of scanning. An LED is used to generate a signal when the probe touches the surface of the work piece. ...
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