In this article we sill show you how to drill countersunk screw clearance holes in Siemens NX with Hole command. There are lots of types of standart hole drilling options in Siemens NX and one of them is countersunk screw clearance hole drilling. You can find the articles about other standard size hole drilling commands in Mechanical Base.
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To drill the countersunk screw clearance hole in Siemens NX, click on the Hole command as shown by red arrow above.
After entering to the Hole command, select the Screw Clearance Hole from the pop up menu as shown by red arrow above in Siemens NX.
In Position section shown by red box above, you need to select the face that you want to create the holes on it as shown by red arrow above.
After the face is selected, a special section will be opened. In this section you can select the exact hole locations by putting points with your mouse as shown by red arrows above. If you complete the specification of points, click on Finish from the right-top section to turn back to Hole command.
You can select the direction of your countersunk screw clearance holes from the red box;
Normal To Face: The countersunk screw clearance hole is drilled normal to the selected face.
Along Vector: Also you can select a line or a axis to define the hole’s direction from the drawing scheme in Siemens NX.
You need to select the Countersunk screw clearance hole form as shown by red box above in Siemens NX.
Select the countersunk screw type as shown in red box that is one type of it; Socket Flat Head 10642.
Select a standart screw size from the red box region such as M10, M12 etc. in Siemens NX Hole command.
Select a Fit situation for screw hole such as Close, Normal or Loose. Also you can define it as Custom by yourself according to your mechanical application.
You can select a depth determination method as in red box above in Siemens NX;
Value: You will enter a depth value for the countersunk screw clearance hole.
Until Selected: The depth of countersunk screw clearance hole will be drilled up to selected face or feature in this method.
Until Next: The depth of countersunk screw clearance hole will be drilled up to other feature in it’s extension.
Through Body: The whole body will be drilled.
The depth option will be determined according to this selection;
Cylinder Bottom: Depth will be determined according to cylinder bottom as shown by red arrow.
Cone Tip: Depth will be determined according to cone tip as shown by green arrow.
You can enter a angle value for define the cone tip angle as shown by green arrow above.
You can Enable the Relief option in the green box that gives the geometric shapes as shown by green arrows above.
You can adjust the chamfering options for countersunk screw clearance hole as shown by green arrow above in Siemens NX. You can enable or disable them.
You can select a countersunk screw clearance hole standard such as ANSI, DIN etc. And you can define a Tolerance value as shown by green arrow above.
Click OK to finish the countersunk screw clearance hole drilling operation.
Hole drilling is very basic as you can see in Siemens NX.
You can find the articles about other standard size hole drilling commands in Mechanical Base.