MIL-DTL-14824C(AR)
6.8 Visual examination qualification. When compliance with
the applicable requirement is in doubt as a result of visual
examination the characteristic may be measured or gaged to
determine acceptability.
6.9 Critical characteristic controls. All production
contracts should contain requirements for handling critical
defects. As part of all proposals, suppliers should be asked to
describe policies, procedures and controls for all operations
associated with safety characteristics, how they are documented
and maintained under the supplier's integrated management system.
6.10 Steel quality.
a. It is the responsibility of the manufacturer of the
projectile metal parts to select a fully-killed carbon steel of a
grade compatible with the abilities of the equipment and the
methods of processing the metal within the operation of the shops
of the forger and machiner to produce the projectile to the
dimension and mechanical properties and metal integrity specified
as an end item requirement.
b. The supplier of the selected steel raw materiel is
responsible only for furnishing a metal composition, grade and,
type with dimensions, weight, soundness and freedom from
metallurgical or mechanical defect limitations identifiable with
the standard AISI grade selected by the projectile manufacturer
and complying with the specific ASTM designation and tests
selected by the projectile manufacturer.
c. In the application of carbon steel, blooms, billets,
slabs and bars, forging quality processing techniques adapted to
use of the selected steel should be applied with the expectation
that there will be variables in the metal cross-sectional
dimension in weight per unit length, in the hardenability
variance from heat to heat, in the mechanical condition of the
surface, and in the straightness of the raw material. Economic
advantages will be realized if the process and equipment within
the shops of the forger and the machiner have been engineered in
terms of equipment sequence of operations, tooling designs,
handling devices and processing techniques having capabilities of
compensating for such variables.
6.11 Definitions
a. Acceptance Inspection Equipment (AIE). Any measuring
device that is traceable to the national or international
standard which is used to assure conformance of material to the
contract requirements.
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