AIA NAS913

This specification encompasses machines having the capability of efficiently machining present and predicted future Aerospace materials. The specification includes machines with high rigidity characteristics and appropriate speed and feed ranges for use in efficiently machining the entire spectrum of Aerospace material including aluminum, magnesium, steels, super alloys, refractories and other thermal resistant materials.

Purpose

This specification provides a standard for the manufacture, performance, reliability, inspection and procurement of a series of rectangular table profile and contour milling machines having two, three, four and five axes of Numerically Controlled motion. This standard lists minimum requirements and is not intended to limit design advances.

Classification

The machines shall be of the following type, size and class as specified by the procuring agency.

Type

Horizontal or Vertical; Single or Multiple Spindle.

Two Axes of Motion

Three Axes of Motion

Four Axes of Motion

Five Axes of Motion

Size

A - Small

B - Medium

C - Large

D - Extra Large

Class

I - Aluminum and steel milling machine (less than 230 KSI)

II - Super Alloy Milling Machine (including steel over 230 KSI)