Talk:7075 aluminium alloy

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General question[edit]

Why is there no 7075-T4? Is it not available commercially? It ought to exist?

Untitled[edit]

Quote:

"As with all aluminum alloys, 7075 has a specific gravity of 2.73 (0.098 lb/cubic inch)"

I think this statement is factually incorrect. Different alloys would have different specific gravities. Biscuittin (talk) 19:42, 3 September 2008 (UTC)[reply]

Units[edit]

This page, as a technical article, ought to be in SI as per the manual of style. CheesyBiscuit (talk) 14:37, 29 March 2010 (UTC)[reply]

WP:SOFIXIT. Wizard191 (talk) 16:36, 29 March 2010 (UTC)[reply]

Weldability[edit]

Perhaps there should be some information on this. --petebachant (talk) 19:31, 17 July 2013 (UTC)[reply]

It basically isn't weldable, though a bit of work with friction-stir welding of 7075-0 is showing that there may be some promise along those lines. Georgewilliamherbert (talk) 23:14, 17 July 2013 (UTC)[reply]

That information (weldable / non-weldable) is definitely important! --> Update: It is claimed that recently a method for welding of 7075 was found: https://www.asminternational.org/web/guest/news/industry/-/journal_content/56/10180/36376675/NEWS --Schwobator (talk) 12:49, 9 April 2019 (UTC)[reply]

Uses[edit]

7075 is also used in the New Horizons robotic spacecraft that is currently on route to Pluto. — Preceding unsigned comment added by Stevefeelgood (talk • contribs) 19:17, 5 August 2011 (UTC)[reply]

It's use in spacecrafts is very common, not a specialty of any recent missions. — Preceding unsigned comment added by 80.250.30.194 (talk) 02:10, 13 February 2016 (UTC)[reply]

7075-T6 was used for all structural parts of Saturn V rocket, Source "Space Systems Technology" edited by Regis D. Heitchure, Jr. — Preceding unsigned comment added by 2A02:A03F:A0A:6300:84E2:7D79:DFD8:A9B6 (talk) 12:12, 28 May 2017 (UTC)[reply]

Irrelevant "see also" link?[edit]

The "See also" section has one entry, to Northwest Airlines Flight 421, which makes no mention of aluminum 7075, nor any alloy. Perhaps there was some connection in a past version of that page, but there seems no reason for the link currently. 173.180.151.52 (talk) 20:34, 23 February 2018 (UTC) anon[reply]

If you look at the article on the plane type involved, it's mentioned there. Lovingboth (talk) 13:29, 19 February 2019 (UTC)[reply]

Weldability[edit]

Its weldable apparently if the welding material is doped with titanium nanotubes. Link -Inowen (nlfte) 10:55, 26 January 2019 (UTC)[reply]

Development date[edit]

The article on the Mitsubishi A6M Zero says 'Most of the aircraft was built of a new top-secret aluminium alloy developed by Sumitomo Metal Industries in 1936. Called "extra super duralumin"..' - with a link to this page, which says this alloy it was developed in 1943.

I can't read Japanese to understand the citation link for the 1943, but should the link in the Zero article be to somewhere else? Lovingboth (talk) 13:33, 19 February 2019 (UTC)[reply]

That must have been a mistake. The linked article Extra super duralumin and successive aluminium alloys for aircraft states that in 1935 the 7075 was developed. - 1935-Nen (Shōwa 10-nen) tōji sudeni chō jurarumiso (Super Duralumin) gōkin wa kaihatsu sa rete itaga Wildkatzen (talk) 09:22, 23 May 2019 (UTC)[reply]