ASTM D3933 PDF

ASTM D Standard Recommended Practice for Preparation of Metal. Surfaces for Adhesive Bonding. ASTM D Standard Guide for. D – Designation: D – 98 AMERICAN SOCIETY FOR TESTING PA Reprinted from the Annual Book of ASTM Standards. D, Method r, and ASTM E involves the etching of aluminum dure is described in ASTM D and involves the application of.

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We have been told that the sulfuric acid process is more temperature sensitive, and we might have to install a chiller and a heat exchanger to control the temperature. We have tinkered with PAA over the years typically applying adhesive primer after anodizing, but anodizing is a conversion coating. Quality Assurance Provisions 8. Last previous edition D— Users of this standard are expressly advised that determination aztm the validity of any d393 patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Other considerations include temperature and humidity effects on joint strength, atsm inhibitors, and retaining joint integrity in cyclic environmental conditions. This standard is not included in any packages. Take a look at this sites “must have” book list. Many factors, however, apply to shear modulus, tensile strength, and tensile modulus measured by small laboratory specimens in general.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior satm use.

Recently one of my long-time colleagues with an electrical engineering background retired. Sorry for the non-definitive answer. Please first log in with a verified email before subscribing to alerts. My ast is that some of Boeing’s competition does not use this process for adhesive bonding, but rather a variant of chromic acid anodizing. NOTE 2—A single-rack facility is one v3933 a single anode rack between each set of cathodes.

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Subscription pricing is determined by: I know of two methods: Standard guides for automotive and aerospace adhesives provide the proper guides for the classification, specification, preparation, and use of several adhesives on aluminum and metal surfaces. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations satm to use.

Proceed to Checkout Continue Shopping. You may delete a document from your Alert Profile at any time. Wegman published by Noyes publications. Is there any literature about the advantages and problems associated with switching from phosphoric acid to sulfuric acid anodizing? The next best process to PAA would be asm method of etching the aluminum surface to roughen the profile.

Phosphoric Acid Anodizing (PAA Process, primarily for adhesive bonding of aluminum)

Your D393 Profile lists the documents that will be monitored. The spec can be obtained from Boeing commercial division or from some specification clearing houses like aerospheres.

The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

I am looking for technical information on PAA phosphoric acid anodizing. Tanks should be equipped with a surface skimming device to remove surface contamination, a? Phosphoric acid anodizing is usually requested by the aerospace industry. It is recommended for screening durability of surface preparation-primer-adhesive systems through the analysis of crack growth and wstm and locus of joint failure.

We would like to know if it s3933 it normal for the solution to turn a yellow color after processing.

Standard Guides for Automotive and Aerospace Adhesives from ASTM

As the voice of the C3933. There is even a standard related to adhesive odor: Do not allow solutions to get on the eyes, on the skin, or on clothing.

Further, how could he verify supplier data found on a typical technical data sheet TDS in a manner that would be universally accepted as adhering no pun intended to good scientific and documentation principles without necessarily running every adhesives d393 known to the automotive world? Cynthia Gosselin guest blogger, ChemQuest. From beautiful Pine Beach New Jersey: Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

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Please first verify aetm email before subscribing to alerts. Reviewing this guide brings perspective not only to the product under development, but also any necessary testing. March 29, A. I am looking for any information on the removal and control of algae that is in our Phosphoric Acid Anodizing tank.

Standard Guides for Automotive and Aerospace Adhesives from ASTM

NOTE 3—The color change may be difficult or impossible to detect on surfaces that have been etched by marking ink, roughened by machining, sanding, deburring, etc. The method may be revised or supplemented, as necessary, to include methods based on proven performance. The Working Properties Subcommittee D This discussion is limited to single-lap specimens and shear strength only for simplification. I have been warned that most CAA processes use a fluorine wash which destroys bondability of 2xxx series aluminums, and that surface must cure for 24 hours before primer is applied.

The values given in parentheses are for information only. Your Alert Profile lists the documents that will be monitored.

Phosphoric acid anodizing per BAC5555 and ASTM D3933-98

There are better, but cost a lot more. See D [link by ed. People in our composites group are pushing asmt electroplating facility to install a phosphoric anodizing process to prep aluminum for adhesive bonding. If the anodizing tank is stainless steel, the tank itself can be the cathode.