1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2013 SAE InternationalAll rights reserved. No part of this publi
3、cation may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS3414EAEROSPACE MATERIAL SPECIFICATIONAMS3414 REV. EIssued 1948-05Revised 2007-10Reaffirmed
5、 2013-07Superseding AMS3414DFlux, Aluminum WeldingRATIONALEAMS3414E has been reaffirmed to comply with the SAE five-year review policy.1. SCOPE1.1 FormThis specification covers an aluminum welding flux in the form of powder.1.2 ApplicationThis flux has been used typically for gas welding aluminum an
6、d aluminum alloys at 1150 F (621 C) and over, but usage is not limited to such applications.1.3 Safety - Hazardous MaterialsWhile the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not
7、address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.2. APPLICABLE DOCUMENT
8、SThe issue of the following documents in effect on the date of the purchase order forms 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 cance
9、lled and no superseding document has been specified, the last published issue of that document shall apply.2.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.AMS
10、 4001 Aluminum Sheet and Plate, 0.12Cu (1100-0), AnnealedAMS 4006 Aluminum Alloy Sheet and Plate, 1.25Mn - 0.12Cu (3003-0), AnnealedAMS 4190 Welding Wire, Aluminum Alloy, 5.2Si (4043)SAE INTERNATIONAL AMS3414E Page 2 of 62.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive,
11、P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM C 371 Wire-Cloth Sieve Analysis of Nonplastic Ceramic PowdersASTM D 1193 Reagent Water3. TECHNICAL REQUIREMENTS3.1 Composition3.1.1 SolidsFlux shall be a finely ground and uniformly blended mixture consisting prima
12、rily of chloride and fluoride salts of sodium andpotassium, with other metallic salts of alkaline metals such as lithium, barium, strontium, or calcium as required to meet the required properties. Total impurities, including compounds of carbon, oxygen, sulfur, iron, or silicon shall not exceed 0.15
13、 percent.3.1.2 Water ContentFlux shall not contain more than 5% by weight of water.3.2 FormThe flux shall be supplied in the form of a powder. A slight amount of agglomeration is acceptable provided the lumps can be readily broken into a powder not coarser than the remainder of the flux. The powder
14、shall be finer than 100 mesh, determined in accordance with ASTM C 371 except wet sieving is not applicable.3.3 PropertiesFlux shall conform to the following requirements:3.3.1 Paste Forming AbilityThe product, when mixed with water or commercial grade methyl alcohol in the proportions of three part
15、s flux powder to one liquid by weight, shall form a smooth paste free from coarse particles, which can be readily applied to metal surfaces.3.3.2 Fusion TemperatureOn heating, the flux shall melt at 1050 F (566 C) or lower. On cooling from 1100 F (593 C) or higher, the flux shall remain in the liqui
16、d state until the temperature drops below 1050 F (566 C).3.3.3 Fusion CharacteristicsThe flux shall not intumesce or bubble excessively when heated to the fusion point and shall not produce a flame or smoke of sufficient intensity to obscure the work. The flux shall not produce toxic or suffocating
17、fumes under normal conditions of use.3.3.4 Flux RemovabilityFlux should be readily removable by water at 190 F (88 C) or hotter after being subjected to welding operations. Scrubbing with a nonmetallic brush to aid in flux removal is permitted. However, if the flux is not completely removed by the h
18、ot water, it will be acceptable if the remaining flux can be removed by immersion in any of the following solutions:a. 10% by volume solution of commercial grade 42 Be nitric acid to which not more than 0.25% by volume concentrated hydrofluoric acid has been added, for not more than 15 minutes at no
19、t higher than 100 F (38 C)SAE INTERNATIONAL AMS3414E Page 3 of 6b. 10% by volume solution of concentrated sulfuric acid in water at not higher than 150 F (66 C) for not more than 10 minutesc. up to a 50% by volume solution of 42 Be nitric acid in water at room temperature for not more than 20 minute
20、s3.3.5 Fluxing AbilityFlux shall produce joints equal to or better than the quality of the joints produced with a control flux of the composition shown in Table 1.TABLE 1 - CONTROL FLUX COMPOSITIONIngredientsPercent by Weightof SolidsPotassium Chloride 44 1Sodium Chloride 30 1Lithium Chloride 14 1So
21、dium Fluoride 12 13.4 QualityFlux, as received by purchaser, shall be uniformly blended and free from foreign materials detrimental to usage of the flux.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe supplier of flux shall supply all samples for suppliers tests and shall be resp
22、onsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the flux conforms to specified requirements.4.2 Classification of Tests4.2.1 Acceptance TestsSolids content (3.1.1), water content (3.1.2)
23、, and form (3.2) are acceptance tests and shall be performed on each lot.4.2.2 Periodic TestsPaste forming ability (3.3.1), fusion temperature (3.3.2), fusion characteristics (3.3.3), flux removability (3.3.4), and fluxing ability (3.3.5) are periodic tests and shall be performed on the first lot (S
24、ee 4.4) and thereafter at a frequency selected by the manufacturer unless frequency of testing is specified by the cognizant engineering organization.4.3 Sampling and TestingAt least one randomly selected sample of flux from each lot. A lot shall be all flux produced in a single production run from
25、the same batches of raw materials and presented for suppliers inspection at the same time.4.3.1 Chemical Composition of SolidsEach lot shall be tested for composition using wet chemical analysis or spectrochemical methods. In case of dispute, chemical analysis by wet chemical methods shall be the ba
26、sis for acceptance.4.3.2 Water content shall be based on the difference in weight of a sample before and after heating to any temperature above 600 F (316 C) and 100 F (38 C) below the measured fusion temperature.4.3.3 Form shall be tested on a sample of not less than 100 grams, taken from a randoml
27、y selected container in each lot.SAE INTERNATIONAL AMS3414E Page 4 of 64.3.4 Fusion Temperature4.3.4.1 On HeatingA sample of flux, heated in an air oven to 1050 F (566 C) in a suitable container, shall completely fuse with no evidence of unmelted flux.4.3.4.2 On CoolingA sample of flux, heated in a
28、suitable container to a temperature exceeding 1200 F (649 C) and cooled to 1050 F (566 C) or lower, shall remain a pourable liquid.4.3.5 Fluxing Ability4.3.5.1 Test MaterialsTwo sets of test panels, each set consisting of two pieces of aluminum sheet conforming to AMS 4001, AMS 4006, or equivalent,
29、not thicker than 0.150 inch (3.81 mm), shall be used to form two square groove butt joints, each not less than 6 inches (152 mm) long. Surfaces shall be cleaned in preparation for welding by any convenient method. The filler metal used shall conform to AMS 4190.4.3.5.2 Flux ApplicationFor each test,
30、 both sets of test panels shall be welded. One test panel shall use the flux formulation to be tested, and the other shall use the formulation given in Table 1. Flux shall be thoroughly mixed with water or methyl alcohol to form a smooth paste, and shall be applied to both the filler metal and the f
31、ace and root sides of the panels to be welded, using a swab, brush, or by dipping as applicable.4.3.5.3 WeldingEach test joint shall be welded using a neutral oxyacetylene flame. The suppliers formulation shall show no more smoke and shall not obscure the work more than the flux formulation of Table
32、 1.4.3.5.4 Flux RemovalExcess welding flux shall be promptly removed after welding by scrubbing with a stiff bristle brush in water at 190 F (88 C) or warmer and/or by immersion in one of the flux removers shown in 3.3.4.4.3.5.5 ExaminationThe weld shall be smooth and shall fair smoothly into the ba
33、se metal on both the face and root sides, and shall not show pits or undue roughness on either the base metal or the weld. There shall be no slag, spatter, cracking, or visual porosity. At least three transverse metallographic cross-sections taken from the weld made with the suppliers flux shall be
34、evaluated, and shall not show evidence of incomplete penetration or incomplete fusion. There shall be no slag or gas porosity of a size greater than 20% of the base metal thickness.4.3.6 Completeness of Flux RemovalPrior to metallographic examination, the suppliers formulation test weld, after flux
35、removal in accordance with 4.3.5.4, shall be immersed in a glass container of reagent water (See ASTM D 1193 Type IV) to which a few drops of nitric acid have been added. After soaking for not less than 30 minutes, remove the test weld and add a few drops of 5% silver nitrate to the liquid. If a whi
36、te precipitate forms or if the solution becomes cloudy, the flux does not meet the flux removal requirements of 3.3.4.SAE INTERNATIONAL AMS3414E Page 5 of 64.4 IdentificationSupplier shall assign to the product an identification name or series of letters and/or numbers, traceable to a specific set o
37、f ingredients, methods of manufacture and manufacturing controls. If it is necessary to make any changes to the ingredients or proportions of ingredients, methods of manufacture, or to manufacturing controls, that unique name, number or series of letters and/or numbers shall be changed (See 5.1).4.5
38、 ReportsThe supplier of flux shall furnish with each shipment a report stating that the flux conforms to the specified technical requirements. This report shall include the purchase order number, lot number, AMS 3414E, manufacturers identification, date of manufacture, and quantity.4.6 Resampling an
39、d RetestingIf any sample used in the above tests fails to meet the specified requirements, disposition of the flux may be based on the results of testing three additional samples for each original nonconforming sample. Failure of any retest sample to meet the specified requirements shall be cause fo
40、r rejection of the flux represented.5. PREPARATION FOR DELIVERY5.1 IdentificationEach package of flux shall be permanently and legibly marked with not less than the following information:FLUX, ALUMINUM WELDINGAMS 3414EMANUFACTURERS IDENTIFICATIONLOT NUMBERDATE OF MANUFACTUREDIRECTIONS FOR MIXING AND
41、 APPLICATIONWEIGHT OF CONTENTS5.2 Packaging5.2.1 Flux shall be supplied in 4 ounce (113 g), 8 ounce (227 g), 16 ounce (453 g), or 5 pound (2.27 kg) glass or plastic containers, as ordered.5.2.2 A lot of flux may be packaged in small quantities and delivered under the basic lot approval provided lot
42、identification is maintained.5.2.3 Containers of flux shall be suitably wrapped, sealed, and boxed or otherwise packaged for protection against injury and contamination during shipment and under normal dry storage conditions.5.2.4 Packages of flux shall be prepared for shipment in accordance with co
43、mmercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the flux to ensure carrier acceptance and safe delivery.6. ACKNOWLEDGMENTA supplier shall mention this specification number and its revision letter in all quotations
44、 and when acknowledging purchase orders.7. REJECTIONSFlux not conforming to this specification, or to modifications authorized by the cognizant engineering organization, will be subject to rejection.SAE INTERNATIONAL AMS3414E Page 6 of 68. NOTES8.1 A change bar (|) located in the left margin is for
45、the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this specification. An (R) symbol to the left of the document title indicates a complete revision of the specification, including technical revisions. Change bars a
46、nd (R) are not used in original publications, nor in specifications that contain editorial changes only.8.2 Terms used in AMS are clarified in ARP1917.8.3 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information.8.4 Purchase documents should specify not less than the following:AMS 3414EType and size of containers desired (See 5.2.1)Quantity of flux desired.PREPARED BY AMS COMMITTEE “B“
