HAND SCRAPING SETS THE FOUNDATION FOR CNC MACHINING ACCURACY AND LONG-TERM STABILITY0 pages

HAND SCRAPING SETS THE
FOUNDATION FOR CNC MACHINING
ACCURACY AND LONG-TERM STABILITY

Hand scraping allows for production of more parts, of higher
quality, over a longer time frame, reducing lifetime cost of
ownership and cost-per-part.

EXECUTIVE SUMMARY

HIGHLY PRODUCTIVE
MACHINES THAT LAST
A LONG TIME ALWAYS
YIELD THE LOWEST
COST-PER-PART.

Hand scraping is a practice that has lost its luster for many machine tool
builders. Because of the associated costs in time and maintaining skilled labor,
it’s an art that has largely been abandoned. At Okuma however, hand scraping
is meticulously performed on every machine we build. That’s because there’s
no substitute for hand scraping when it comes to maintaining high levels of CNC
machining accuracy and sustaining a long, stable and productive life for your
machine.

Every Okuma is hand scraped on each mating surface – involving six or more
of the machine’s components. The craftsmen who perform hand scraping
are carefully trained, and tap into their experienced, intuitive sense of how to
fine-tune the unique characteristics of each individual machine. Why go to all
this trouble? Because there’s no better way to ensure that tight tolerances are
maintained consistently, and that this level of CNC machining performance
will be sustained for years to come. As for lifetime cost of ownership – highly
productive machines that last a long time always yield the lowest cost-per-part.