Profitable honing comes from the ideal combination
of operator, machine, tooling, abrasive and honing oil working together
as the perfect team. The use of genuine ACCU-CUT abrasives and ACCU-CUT
's premier line of honing oils will produce the lowest overall honing
cost per part. Typically, oil cost per part is less than one-tenth of
one per cent of the total. Yet, a slight decrease in cycle time or a decrease
in abrasive consumption resulting from a better lubricant repays the cost
of premium honing oil many times over. Your investment in top-quality
ACCU-CUT honing oils, saturated with surface active agents, provides the
extreme lubricity that allows you to use higher honing pressure and harder
abrasives for faster, more profitable cutting rates.
ACCU-CUT's experience and expertise with honing machines has helped us
develop the finest abrasives, assuring you of the ultimate in bore-sizing
quality. For the production of microfine finishes, ACCU-CUT provides a
complete line of superior quality finishing abrasives. We manufacture
and stock all varieties and types of aluminum oxide and silicon carbide
stones in various grit sizes. This superabrasive line also includes diamond
and CBN abrasives. These superabrasives outperform ordinary abrasives
in cutting action, finishing speed and wear resistance, overcoming even
the most difficult bore-sizing and finishing problems.
Honing is employed to improve surface finish, size, and surface geometry.
In most GMPTD applications, the tool makes a light cut with a fine grained
abrasive (240-600 grain size) and conforms to the workpiece geometry.
The most common application is on internal cylindrical surfaces, but it
also may be used elsewhere such as on flat surfaces. The abrasive grains
are bonded to form stones which are typically both rotated and reciprocated
in contact with the work surface. In face honing both the part and tool
rotate about parallel but not coaxial centerlines.
Each abrasive grain in contact with the workpiece removes a small chip
and the grains are continuously broken down by the process to expose new,
sharp grains. In this manner, honing stones are self-sharpening. Great
care should be exercised in selecting rotary speed, stone pressure, bond
hardness, and coolant to assure correct stone breakdown, avoiding glazing
and produce the desired surface finish.
Single stroke honing resembles reaming, but with an abrasive rather than
fluted tool. The tool has a diamond abrasive coated sleeve that can be
expanded to adjust size. Like a reamer, the tool is rotated and fed axially
through the hole, cutting on its lead taper. Because of the lead taper,
the hole must have at least 15 mm axially of clearance beyond the sized
portion. Unlike a reamer, the tools cannot control the position of the
hole. Therefore either the part or tool must float. Stock removal is limited
to 0.02-0.03 mm on diameter. Multiple passes with progressively larger
tools are used.
Superfinishing and polishing are analogous to honing for
improvement of surface finish. Whereas honing is common for inside diameters,
these processes are used for outside diameters. In general, polishing
is done with a soft backing for an abrasive tape and does very little
to improve part geometry. Superfinishing is done with firm or rigid abrasives
either in stone form or as abrasive paper with a rigid backup, and does
improve surface geometry. Grit size of 320-6000 is common with surface
finishes as fine as 0.1 mm (4) at GMPTD, shaft bearing journals are commonly
polished or superfinished after being ground to alter the aggressive surface
left by production grinding.
ACCU-CUT honing technologies provide SUPERIOR...
· Production Rates through easier setup, operation and faster cycle
· Production Efficiencies through customer specific diamond-plated
tooling and unequaled tool life.
Just check out our results below and then
call our technical staff so we can assist you toward a better bottom line.
ACCU-CUT invites you to compare conventional
honing to diamond sizing to Planetary
Gear Bore Geometry, Conventional Honing Product Results, Automotive Industry,
Domestic Industry Observations, Foreign Market Benchmark
Surface Finish RA, Bearing
Ratio, Size SPC, Geometry, Roundness in millionths of an inch, Straightness
(in millionths of an inch).
ACCU-CUT Diamond Tool Company and Bore Sizing Systems is a manufacturer
of quality precision engineered diamond bore sizing tooling and turn-key
machine systems including: honing equipment, machines, honing abrasives,
superabrasives and diamond honing tools as well as automotive honing,
super finishing, and bore finishing.