美國焊接標準

1、SAE-AMS-W-6858ADOPTION NOTICESAE-AMS-W-6858, “WELDING, RESISTANCE: SPOT AND SEAM“, was adopted on 05-AUG-99 for use by the Department of Defense (DoD). Proposed changes by DoD activities must be submitted to the DoD Ad

2、opting Activity: ASC/ENOI, Building 560, 2530 Loop Road West, Wright-Patterson AFB, OH 45433-7101. Copies of this document may be purchased from the Society of Automotive Engineers 400 Commonwealth Drive Warrendale, Pe

3、nnsylvania, United States, 15096-0001. http://www.sae.org/ ___________________Custodians: Adopting Activity: Air Force - 11 Army - MR Navy - AS Air Force - 11AREA THJMDISTRIBUTION STATEMENT A: Approved for public releas

4、e; distribution is unlimited.Copyright SAE International Provided by IHS under license with SAE Licensee=Kidde Aerospace/3273500100 Not for Resale, 07/25/2005 06:25:38 MDT No reproduction or networking permitted withou

5、t license from IHS--`,,,,,`````,,``````,,,`,,```,-`-`,,`,,`,`,,`---AMS-W-6858A SAE AMS-W-6858A- 2 -1.2 Classification: Classification is based on function and use of the welded joint, rather than certain average levels o

6、f strength. Therefore, reliability is the key underlying quality distinguishing the work for each class. The criteria described herein are intended to prevent larger variations in weld strength and quality than are

7、compatible with the intended use.Class A A welded joint, whose failure during any operating condition would cause loss of the equipment or system or one or its major components, loss of control, unintentional release o

8、r inability to release any armament score, failure of gun installation components; or which may cause significant injury to occupants of manned systems.Class B A welded joint whose failure would reduce the overall stren

9、gth of the equipment or system or preclude the intended functioning or use of equipment.Class C A welded joint which is considered non-critical and for which no stress analysis is considered.1.2.1 The classification o

10、f welds in foil thickness is limited to Class A and Class C.2. APPLICABLE DOCUMENTS: The following documents of the issue in effect on date of invitation for bids, or request for proposal, form a part of this specificat

11、ion.2.1 American Welding Society (AWS) Publications: Available from American Welding Society Inc., 2501 N.W. 7th Street, Miami, Florida 33125)AWS A3.0 Terms and Definitions AWS C1.1 Recommended Practices for Resistance W

12、elding3. REQUIREMENTS: 3.1 Design requirements: 3.1.1 Definition of terms used in this specification shall be in accordance with AWS A3.0, and as shown in 6.2 herein.3.1.2 The class of welding shall be designated on the

13、 item specification or drawing. The design of Class A resistance welded joints shall require the specific approval of the procuring activity who may approve if satisfactory resistance welded prototypes exist, or upon

14、evidence of the adequacy of the design and pattern of spot welding or upon the satisfactory performance of suitable static and repeated loading testing of the design or applicable prototype.Copyright SAE International

15、 Provided by IHS under license with SAE Licensee=Kidde Aerospace/3273500100 Not for Resale, 07/25/2005 06:25:38 MDT No reproduction or networking permitted without license from IHS--`,,,,,`````,,``````,,,`,,```,-`-`,,`,