AIA NAS956 PDF

Purpose

The purpose of this specification is to provide a standard for a numerically controlled, thin wall tube bender of adequate power, rigidity and accuracy to draw form tight radius, thin wall bends, in non-ferrous and annealed ferrous tubing associated with the manufacture of aircraft, missile, and space vehicles.

Classification

The equipment specified herein shall be designated as, "Tube Bender, Numerically Controlled, Precision Aircraft Type for Thin Wall, Ferrous and Non-Ferrous Alloys".

Type

Type I

Precision tube bender equipped with direct pressure for pressure and clamp die (Draw Bend).

Type II

Precision tube bender equipped with direct pressure for pressure die and indirect hydraulic pressure for clamp (Comp. Bend).

Class

Class I

Precision Bender (left hand), Counter Clockwise Bending Motion. Numerical Control system AIA Class III positioning.

Class II

Precision Bender (right hand), Clockwise Bending Motion. Numerical Control System AIA Class III positioning.

Bender Capacity

Size 2 Bender capacity shall cover a range of tube diameters from 3/16" OD to 2" OD.