GRINDING STRAIGHT CARBIDE ROUTER BITS
1.
In general the set-up and procedure for grinding
carbide router bits is the same as for high speed
steel.
2.
The main difference is that the carbide router bit
must be ground with a diamond wheel and that the
amount of feed used on the diamond wheel should
not be more than (.0005) one-half thousandth per
pass of the grinding wheel. See Illustration No. 2.
and No. 21.
GRINDING SPIRAL CARBIDE ROUTER BITS
The set-up for grinding carbide spiral router bits is the
same as for high speed steel spiral router bits. The main
difference is that a diamond wheel of the D11 type (flaring
cup) must be used and an in-feed of but (.0005) one-half
thousandth is used. See illustration No. 17 and No. 22.
ILLUSTRATION NO. 23
GRINDING A STRAIGHT PLANER CUTTER
4.
Mount spring loaded stop finger so it will clear
grinding wheel. The base of the stop finger must
be mounted onto the table so it will move with the
work.
5.
Adjust stop finger up or down to get proper
clearance on cutter. See illustration No. 19.
6.
Set table stops so that grinding wheel can be
cleared when cutter is rotated.
7.
Bring grinding wheel up close to cutter and dry run
to see that stops and set-up are correct.
8.
Turn on grinder motor and take a very light pass
on cutter.
9.
Re-adjust stop finger up or down as needed to
ILLUSTRATION NO. 22
grind the entire surface of cutter.
GRINDING END OF SPIRAL CARBIDE ROUTER BIT
GRINDING SPIRAL PLANER KNIVES, HIGH SPEED
GRINDING STRAIGHT PLANER KNIVES HIGH SPEED
STEEL OR CARBIDE
STEEL OR CARBIDE
1.
Dress flaring cup wheel for high speed cutters as
1.
Wheel Dressing-for grinding high speed steel
shown in illustration No. 10.
cutter, dress flaring cup wheel as shown in
illustration No. 10.
2.
Set-up grinder with sub-table and centers as
outlined for straight planer cutters.
2.
Set-up grinder with sub-table and centers as show
in illustration No. 23. Mount flaring cup wheel with
3.
Set-up stop finger base onto base of grinder. See
face toward front of machine.
3.
Mount cutter on appropriate mandrel or if cutter
4.
Use the rigid stop finger for spirals.
has centers, mount directly onto centers of the
grinder.
5.
Lock table In position so that the cutter is just
clearing the grinding wheel.
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