Tool Selection; Tool Offset; Tool Function - Wuhan Huazhong Numerical Control Co., Ltd HNC-18iT v4.0 Programming Manual

1.6 Tool Function
1.6 1.6 Tool 1.6 Tool

Tool Function

Function Function
1.6.1 1.6.1 Tool Tool Selection Selection
1.6.1 1.6.1 Tool

Tool Selection

Selection
It is necessary to select a suitable tool when drilling, tapping, boring or the like is performed.
As it is shown in Figure 1.19, a number is assigned to each tool. Then this number is used in
the program to specify that the corresponding tool is selected.
1.6.2 1.6.2 Tool Tool Offset Offset
1.6.2 1.6.2 Tool

Tool Offset

Offset
When writing a program, the operator just use the workpiece dimensions according to the
dimensions in the part drawing. The tool nose radius center, the tool direction of the turning
tool, and the tool length are not taken into account. However, when machining a workpiece,
the tool path is affected by the tool geometry.
workpiece workpiece workpiece workpiece
06
01
02
03
04
Figure 1.19 Tool Selection
Rough
Standard
cutting
tool
tool
Figure 1.20 Tool Offset
15
Tool Tool Tool number Tool number number number
05
Tool Tool post post
Tool post Tool post
Finishing Grooving
tool tool
1. General
Thread
cutting
tool