Struers Prepamatic-2, Instruction Manual

Page: 46 / 242

Prepamatic-2
Instruction Manual
42
The error sources and their contribution to inaccuracy in the stock
removal cannot be sorted out individually. Therefore, it is necessary
to collect some statistical material. From this a calibration curve can
then be made for the actual sample. When this curve is established
the value to be set in the method to achieve a certain removal can
then easily be found.
In order to get a reasonably accurate curve it is recommended to
perform about 20 test measurements. Be sure that the measuring
points are chosen in the requested work area.
The enclosed curve sheet can be copied and used to plot a
calibration curve.
The following variables must be maintained during the measuring
and the subsequent application of the curves:

Sample diameter

Sample material

Sample test material area

Grinding base

Grinding force

Mounting material

Grain size/dosing

Lubricant dosing
Calibration curves