
1. MACHINING PROGRAMS FOR
2–AXES (X AND Z–AXIS) LATHES
B–63284EN/03
TYPES OF MACHINING
PROGRAMS
264
A part of a contour is referred to as a figure block.
A figure block with its end point not determined is said to be in the
pending state. A pending figure block is drawn by dashed lines.
On the screen for figure data input (contour data input screen), more data
input items than required are provided. These data items are used to
calculate the cross point with the immediately preceding pending figure
block, and also calculate the end point. The pending state is then released.
NOTE
Ten continuous figure blocks can be specified as pending
blocks.
(1) Chamfering immediately after a start point
Immediately after a start point, chamfering or can be specified. In
this case, the coordinates of a calculated start point are displayed.
Entered start point
Calculated start point
Chamfering
Immediately after chamfering or corner R, only a horizontal line,
vertical line, slanted line, or arc can be specified.
NOTE
Chamfering and corner rounding immediately after a start
point are usable only in bar machining and pattern
repeating.
(2) Chamfering/corner R at the end of a contour
At the end of a contour, chamfering or corner R can be specified. In
this case, enter a temporary figure block as a pending block. In a
temporary figure block, specify only a horizontal line, vertical line,
or slanted line, with its end point pending.
NOTE
Chamfering and corner rounding for the last figure are
usable only in bar machining and pattern repeating.
1.1.4
Details of Contour
Calculation