User`s manual
13
Part 1
Item Characteristics/Points to Consider
The bigger this number, the faster the cutting speed. However, if this number is too large, the work
surface may melt or burn due to excessive friction. Conversely, if this number is made smaller, the time
Spindle motor taken for cutting becomes too longer. Generally speaking, the entire cutting speed is determined by the
revolution speed cutting edge speed, so the smaller the tool diameter, the higher the spindle revolution speed required.
(When performing engraving without rotating the cutting tool, set “REVOLUTION” to “OFF.”)
Revolution speed : 5,000—15,000 rpm
When the feeding speed is high, processing becomes rough and flash marks tend to remain on the cut
Feeding speed surface. On the other hand, when the feeding speed is slow, processing takes more time.
Be careful because a slower feeding speed does not always result in improved finishing.
When the cutting-in amount is deeper, the cutting speed increases, but the cutting-in amount is limited
Cutting-in amount by the quality of the workpiece. In cases where the required depth can not be cut at once, repeat cutting
several times to depth that does not breach the limit.
9. Cutting Condition Setting
Before you begin the actual cutting process, the cutting conditions such as the revolution speed of the spindle motor and the feeding
speed of each axis must be designated according to the quality of the workpiece and the type of cutter used. There are several deciding
factors to be taken into account when designating the cutting conditions.
1. The quality of the workpiece 4. The cutting method
2. The type of cutter used 5. The cutting shape
3. The diameter of the cutter used
Designate the cutting conditions in consideration of the above factors by performing the following three PNC-2300 setting operations.
1. The spindle motor revolution speed (cutter revolution speed)
2. The feeding speed (cutter moving speed)
3. The cutting-in amount (depth of one cutting operation)
Note : When settings have been made with both the software and the PNC-2300, the last settings made have
priority.
In this manual, these three conditions are called the cutting conditions. The characteristics and points to consider for each of these
conditions are as follows.
Manual Setting of Cutting Conditions
The cutting conditions can be set manually according to the method described below.
If the cutting conditions can be set with your current software, this is a faster and more efficient method than manual setting. It makes no
difference when you come to construct a program. The following method is appropriate for making delicate halfway adjustments to
conditions previously set using software, etc.
Press the [MENU] key to make the following screen
appear on the display.
1
Press the [ ] or [ ] key to move the blinking cursor
(“ ”) to “XY-SPEED.”
To set the lowering speed of the head, move the
blinking cursor (“
”) to “Z-SPEED.”
2
Feeding Speed