AIA/NAS 977-2012 pdf download MILLING MACHINE, CONTOUR, NUMBERICAL CONTROL, MULTIAXIS, TRAVELING GANTRY/TABLE, COMBINATION HIGH AND LOW SPEED
1. 0 SCOPE
1. 1 Purpose: This specification provides a standard for the manufacture, performance,inspection and procurement of a numerically controlled, wide bed, contour milling machine. This standard lists minimum requirements and is not to limit design changes.
1. 2 Classification: This equipment shall be classified as a combination high and low speed range, numerically controlled, contouring, wide bed, vertical milling machine in the following styles, types and sizes.
1. 2. 1 Style I – Traveling gantry.
Style II – Traveling table.
Type I – Single spindle.
Type II – Multiple spindle.
Size I – Working surface width – 96″.
Size II – Working surface width – 120″.
Size III – Working surface width – 144″.
Note: The recommended minimum working length to be 30′ , and to be field extensible.
1. 3 Intended Use: The machine described by this specification is intended for use in the aerospace manufacturing industry. It shall provide adequate capacity to perform machining operations (stock removal) on ferrous and non-ferrous materials. It shall be capable of utilizing all commonly used milling cutters for operations such as pocketing, sculpturing, slabbing, detailing, facing, etc.
All numerically controlled axes of motion shall be automatically controlled by programmed numerical data media or manually controlled by suitable controls.
(Automatic control by means of manual input of numerical data shall be optional. )
2. 0 APPLICABLE SPECIFICATIONS. CODES AND STANDARDS
The latest revision of the following specifications, codes and standards are included as a portion of this specification. Detail requirements listed in this specification shall override any contradictory portions of the following specifications, codes and standards.
2. 1 The National Machine Tool Builders Association’ s (NMTBA) Electrical Standards.
2. 2 The Joint Industries Conference (JIC) Hydraulic and Pneumatic Standards for Industrial Equipment.
2. 3 The American Standards Association (ASA) for small tools and machine tool elements, numbers B5. 1, B5. 18 and B5. 28.
2.4 The American Society of Mechanical Engineers’ (ASME) Boiler and Pressure Vessel Code, Section VIII.
2.5 National Aerospace Standard 938, Machine Axis and Notion Nomenclature.
2.6 National Aerospace Standard 953, Numerical Control Systems (standard practice).
2.7 National Aerospace Standard 955, Interchangeable Tape Standards – Variable block format, contouring and contouring/positioning, numerically controlled equipment.
2.8 Electronics Industries Association (EIA) Construction Standards, Numerical Machine Tool Control, #RS-281.
2.9 National Aerospace Standard 968, Interchangeable Digital Magnetic Tape Standards,Variable Block, Word Address Format, Contouring and Contouring/Positioning Equipment.
2.10 National Aerospace Standard 969, Interchangeable Digital Magnetic Tape Cartridge – for Numerically Controlled Machines.
2.11 The American Standards Association (ASA) for Surface Texture, B46.1 1962.
2.12 All components, equipment and sub-systems whose design and construction are not covered by this specification or the above standards, shall be in accordance with accepted comercial standards.
3.0 REQUIREMENTS
The manufacturer’s contractual obligations for the design and function of the machine shall be specified in this section.
AIA/NAS 977-2012 pdf download
PS:Thank you for your support!
