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).
Metallurgy of engine suspension components, comparing the effects of brazing versus welding on nickel steel.
| Identifier | ExFiles\Box 14\5\ Scan002 | |
| Date | 10th March 1926 | |
| NHC. BY/SS.{S. Smith} Hs.{Lord Ernest Hives - Chair} X.7005 BY4/H.{Arthur M. Hanbury - Head Complaints} 10.3.26. E.A.C.VII. ENGINE SUSPENSION. N.SCH.2112. E.74529 & Top Plate for same. ----------------------------------------- It would be wrong to braze the above pieces as we shall bring down the elastic limit of the nickel steel to such a state that it will only be very slightly better than mild steel, and from the appearance of the parts there is no doubt at all in my mind that they should be in heat-treated nickel steel. I think we ought to try welding the edges, but this will of course need a special welding glut. I am writing the Order Office asking them to take it up with the suppliers of our welding wire, and ask them for their recommendations in connection with the welding of 3% nickel steel. We have communicated with Da.{Bernard Day - Chassis Design} to confirm that in his opinion the stresses in the material are such as to demand nickel steel sheet, but it seems to me fairly obvious that this will be essential, judging from our previous experience, when we have bent away the arms. BY.{R.W. Bailey - Chief Engineer} | ||