No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

Surfaces must be free of 'imperfections' ... but what does that actually mean?

July 11, 2013

Material AL ALLOY 6061-T6/T6511; regarding: visible surfaces must be free of die marks and other imperfections. Aside from FED-STD-245/ANSI-H35.2, what specific specification apply to this material when an extrusion. Imperfections, what spec is there to apply or define imperfections for this material? Die marks are defined but imperfections is too vague. Does it mean, voids, coloration, inclusions?

The area of aerospace is highly critical cosmetically as are functional properties.

Yolanda Craft
aerospace - Santa Maria, California USA

July 15, 2013

A. Hi Yolanda,

I think you need to go back to your specific customer and see if they have a definition or someone from the customer could give you an interpretation of what is meant.

It is difficult for the rest of us to advise, because what is acceptable to me may not be acceptable to say Ted or James or any of the other regular contributors.

Brian Terry
Aerospace - Yeovil, Somerset, UK

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: