SAE AMS 2681B:2000 pdf free download

SAE AMS 2681B:2000 pdf free download

SAE AMS 2681B:2000 pdf free download Welding, Electron-Beam
1 . SCOPE:
1 .1 Purpose: This specification defines the procedures and requirements for joining metals and alloys using the electron-beam (EB) welding process.
1 .2 Application: These procedures are used typically for electron-beam welding of aerospace components in soft to hard vacuum atmospheres, but usage is not limited to such applications. EB welding for fatigue critical applications should be performed in accordance with AMS 2680.
2. APPLICABLE DOCUMENTS: The issue of the following documents in effect on the date of the purchase order form a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been canceled and no superseding document has been specified, the last published issue of that document shall apply.
2.1 SAE Publications:
Available from SAE, 400 Commonwealth Drive, Warrendale, PA 1 5096-0001 .
AMS 2630 Ultrasonic Inspection, Product over 0.5 inch (1 2.7 mm) Thick
AMS 2631 Ultrasonic Inspection, Titanium and Titanium Alloy Bar and Billet
AMS 2632 Ultrasonic Inspection of Thin Materials, 0.50 inch (1 2.7 mm) and Thinner in Cross-Sectional Thickness
AMS 2680 Electron Beam Welding, For Fatigue Critical Applications
ARP1 31 7 Electron Beam Welding
ARP1 333 Nondestructive Testing of Electron Beam Welded Joints in Titanium-Base Alloys
.2 ASTM Publications:
Available from ASTM, 1 00 Barr Harbor Drive, West Conshohocken, PA 1 9428-2959.
ASTM E 1 41 7 Liquid Penetrant Examination
ASTM E 1 444 Magnetic Particle Examination
ASTM E 1 742 Radiographic Examination
2.3 U.S. Government Publications:
Available from DODSSP, Standardization Documents Order Desk, Building 4D, 700 Robbins
Avenue, Philadelphia, PA 1 9111 -5094.
MIL-STD-1 595 Qualification of Aircraft, Missile, and Aerospace Fusion Welders
2.4 AIA Publications:
Available from National Standards Association, Inc., 1 250 Eye Street, Washington, D.C. 2001 4.
NAS 976 Electron Beam Welding Machine
3.1 Materials:
3.1 .1 Parent Materials: Shall be as specified on the applicable part drawing. (See ARP1 31 7 for guidelines.)
3.1 .2 Filler Materials: When required, filler metal shall be as specified on the part drawing.
3.1 .3 Cleaning Materials: Cleaning materials, chemical solvents, and etching solutions shall be as specified on the part drawing or in the certified welding schedule.
3.2 Equipment:
3.2.1 Electron-Beam Welding Equipment: Shall be capable of producing welds meeting the requirements of 3.6 and 3.7. Equipment conforming to NAS 976 shall be acceptable.
3.2.2 Jigs and Fixtures: All holding fixtures shall be capable of maintaining the desired configuration and tolerances during welding, providing back-up as required, and allowing required work space between the work piece and the electron gun. Back-up material used to deflect or absorb residual electron-beam energy shall be of the same alloy as the part being welded except that alternate back-up materials may be used when approved by procedure certification as in 3.4.2. Tooling within 6 inches (1 52 mm) of the weld joint shall be made from nonmagnetic materials or be degaussed to acceptable limits (See 3.2.3).