MDP-15
6) Grinding primary face
a. Set the grinding depth 0.02mm with the grinding micrometer (35).
b. Using Position (23) handle, align cross hair line with the margin.
c. Set Mode (23) to 1.
d. Turn TRAV. Speed (20) to 60% and push Start button (30) to
start grinding the
primary face.
e. Remove the drill from the collet, and measure the point angle.
The point angle is lager
Decrease the number of Index 1 counter.
The point angle is smaller Increase the number of Index 1 counter.
f. After chocking the drill bit and cross hair line adjustment, set the grinding depth 0.02mm
with the grinding micrometer (35) and grind the primary face again.
g. Repeat the above steps until getting an appropriate point angle.
7) Thinning
a. Set Mode (23) to 2.
b. Push Index 1 (26) to rotate the drill bit.
c. Push Start (33) clockwise until the table begins to move to the right until it reaches to
the traverse table micrometer (13).
d. Input
e. Push Thinning (24) switch to move the thinning wheel back and forward.
f. Using traverse table micrometer (13), advance the thinning wheel forward.
g. Adjusting the position of the drill bit with traverse table micrometer (13), repeat e and f
until the thinning wheel makes contact with the drill point.
h. After the thinning wheel making contact with the drill point, push Index 2 (27) and
ORG. (25) at the same time to rotate the drill bit to the position as it was before thinning.
i. Push Start (33) to return the traverse table to the original position.
j. Push Index 1 (26) and ORG. (25) at the same time to rotate the drill bit to the original
position.
8) Drill point Analysis
a. Set Mode (23) to 1.
b. Set the grinding depth 0.02mm with the grinding micrometer (35).
c. Using Position (23) handle, align cross hair with the margin.
d. Push Start button (33) to start the operation.
UNION TOOL
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