From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Visit to study aluminium alloys for coachwork and outlining tests for supplied metal samples.
| Identifier | ExFiles\Box 117\1\ scan0073 | |
| Date | 24th December 1935 | |
| To Sft.{Mr Swift} Copy to Hs.{Lord Ernest Hives - Chair} E.{Mr Elliott - Chief Engineer} RHO. H1. X1021 E/Ev.{Ivan Evernden - coachwork}1/MN.24.12.35. Re Aluminium Alloys for Coachwork. Aluminium Industrie - A.G., and R.R.Ltd. We visited Switzerland in company of Mr.Ward, (Park Ward & Co.) to study the use of aluminium alloys for body construction, both for the framework in the form of extruded sections and for the panels in the form of sheet. A report of our visit is appended herewith. We have received from the Aluminium Industrie A.G. at Neuhausen samples of their pure aluminium sheet (Reinalumin) and of the alloys, Aluman, Peraluman and Anticorodal, and these we are sending to you with this note, and also a sample sheet of RR.75A, an alloy which H1. has had produced specially for panel beating. In the appendix herewith is a chart giving the physical properties of aluminium and these alloys, as given to us by the producers. In order to get some experience with the use of these alloys for coachwork we wish to make certain tests to check these figures and to do tests to discover the condition of the metals after working and welding. Appended herewith are translations of the instructions for soldering and welding the Swiss Alloys, and H1. will supply the correct instructions for these processes for RR.75A. We are sending you herewith welding sticks and a tin of 'Lumiweld' welding flux. Outline of Tests. Metals Supplied. 1 Sheet Reinalumin. 1.6 mm. - 1/2 hard. (1 Sheet Aluman 1.6 mm. - soft. (1 Sheet Aluman 1.6 mm. - 1/2 hard. 1 Sheet Peraluman 1.2 mm. - soft. (1 Sheet Anticorodal. 1.2 mm. - soft. (1 Sheet Anticorodal. 1.2 mm. - 1/2 hard. 1 Sheet RR.75A. .062" - 1/4 Hard. | ||