AIA/NAS 914-2012 pdf download MILLING MACHINE – TRACER CONTROLLED PROFILING & CONTOURING-VERTICALPurpose:
This specification provides a standard for the manufactureperformance，reliability,inspection,and procurement of aseries of rectangular table profile and contour milling machineshaving multiple axes of tracer controlled motion. This standardlists minimum requirements and is not to limit design advances.
Classification
The machines shall be of the following type, size, and classas specified by the procuring agency.
1.2.1
Type
Vertical – Single or Multiple SpindleI – Two Axes of Motion
II- Three Axes of Motion
IIIiFour Axes of Motion
1.2.2
Size
SmallA-
B-Medium
C – Large
D – Extra Large
1.2.3
Class
I – Aluminum and Steel Milling Machine (less than 230 KSI)II- Super Alloy Milling Machine (including steel over 230 KSI)