REFERENCES
- W. J. HUPPMAN and M. HIRSCHVOGEL : ‘Powder forging’, Int. Met. Rev., to be published.
- G. BOCKSTIEGEL and C.-A. BLÄNDE: Powder Met. Int., 1976, 8, 155. .
- S. CORSO: Fiat, Torino, kindly provided the photographs of preforms and gear.
- K. H. MOYER : ‘Progress in powder metallurgy’, (ed. R. F. Halter), Vol. 30, p. 193. 1974: Princeton (MPIF).
- S. CORSO and c. DOWNEY : Powder Met. Int., 1976, 8, 170.
- H. O. McINTIRE, J. H. PETERSON, and H. R. McCURDIE: ‘Modern developments in powder metallurgy’, (eds. H. H. Hausner and W. E. Smith), Vol. 6, p. 133. 1974: Princeton (MPIF).
- R. F. HALTER: ‘Modern developments in powder metallurgy’, (eds. H. H. Hausner and W. E. Smith), Vol. 7, p. 213. 1974: Princeton (MPIF).
- G. BOCKSTIEGEL and H. OLSEN : Powder Metall. (Conf. Suppl. Part I), p. 127. 1971: London (Inst. Met.).
- P. L1NDSKOG and S. E. GREK : Ref. 7, p. 285.
- G. T. BROWN: Met. Technol. (May-June 1976), p. 229.
- G. T. BROWN: ‘Powder metallurgy, promises and problems’, p. 96. 1975: Paris (Soc. Franc. de Metallurgic).
- Work in progress at GKN.
- O. VOIGTLÄNDER : HFF-Bericht 9. Umformtechnisches Kollo-quium 1977, p. 7. 1977: Hannover (Ges. f. Produktions-technik).
- O. VOIGTLANDER : Thyssen, Remscheid, kindly provided the photographs.