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The Need for Calibration
In today’s fast paced world the expectation of quality is an
assumption, at best, based on computer technology alone. The ability
of a machine tool to perform at its optimum is largely based on the
geometric and positioning integrity of the machine axes.
Each machine tools capability is grossly impacted by these
factors.
Another factor in part quality is the human element. The days of the
well- trained, experienced machinist are fading fast. The new
technology is supposed to replace that experienced individual. The
most effective way to ensure that happens is to know the capability of
your machine. The machine control assumes that each axis is
orthogonal to the other axes. Also the control assumes that the
tool tip is where it was programmed to be. The only way to ensure that
this is the case is to have your CNC machines measured and calibrated
on a routine schedule. This will ensure consistent quality performance
from your CNC machine.
The machine tool itself accounts for 50% of all
part quality problems. This figure was derived from a study
conducted by the National Center of Manufacturing Sciences. This
study included data from many major manufacturing companies in the
United States. The
remaining factors that affect part quality are programming errors,
measurement errors (gauging, cmm, etc.) and process problems.
As you can see this study alone clearly supports
the need for machine tool calibration.
Send
mail to cmsi@machtoolcal.com with questions or comments about this web site.
Last modified:
February 03, 2010
Be
not slothful in business,
but fervent in Spirit, as
serving the Lord…