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Contents Volume 3 (1979/1980) Vol. 3, No. 1

Guest Editorial: The materials question Sir Hugh F o r d ( L o n d o n , England) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The use of a square grid as an alternative to a circular grid in the d e t e r m i n a t i o n of strains J. D a n c k e r t (Soborg, D e n m a r k ) and T. Wanheim (Lynby, D e n m a r k ) . . . . . . . . . The uniaxial strain-hardening behaviour of sheet metal f r o m zero strain to failure K. Saka (Ibadan, Nigeria), M.J. Painter and R. Pearce (Cranfieid, England) . . . . O p t i m u m working c o n d i t i o n s in the cross rolling o f stepped shaft M. H a y a m a ( Y o k o h a m a , Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Material selection for e x t r u s i o n and hot-working tools in relation to a new manufacturing t e c h n o l o g y Th. S k a m l e t z and W. S c h e p p (Wetzlar, West G e r m a n y ) . . . . . . . . . . . . . . . . . The application o f brush-plated cobalt alloy coatings to hot- and cold-work dies K.J. Lodge, F.A. Still, J.K. Dennis and D. J o n e s (Birmingham, England) . . . . . . . Edge cracking in sandwich rolling ( S h o r t C o m m u n i c a t i o n ) A.A. A f o n j a and D.H. Sansome (Birmingham, England) . . . . . . . . . . . . . . . . . R e p o r t on I. Prod. E. Seminar on Microprocessors and Minicomputers in Manufacturing G. Le Gallez (Leeds, England) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B o o k Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diary of Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

5 17 31

47 63 77

85 87 91

Vol. 3, No. 2 A n e w m e t h o d of burr-free slitting M. M u r a k a w a and T. M a e d a (Tokyo, Japan) . . . . . . . . . . . . . . . . . . . . . . . Breakthrough pressures in lubricated extrusion C.E.N. Sturgess and T.A. Dean (Birmingham, England) . . . . . . . . . . . . . . . . . . Experimental investigation of die wear in small-batch hammer-forging under unlubricated conditions T.R. Raghavendra R a o and S.K. Biswas (Bangalore, India) . . . . . . . . . . . . . . . Radial-draw bending of stainless steel tube K. Inoue and P.B. Mellor (Bradford, England) . . . . . . . . . . . . . . . . . . . . . . . Computer-aided manufacture of forging dies by volume building Y.K. Chan and W.A. Knight (Birmingham, England) . . . . . . . . . . . . . . . . . . . . Metal flow and strain distribution around a rigid cylindrical inclusion in forging (Short Communication) U. St~hlberg (Stockholm, Sweden) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A n investigation into the effects of axial forces on bar cropping based on a study of pre-cracking elastic stress distribution (Short Communication) S.K. Maiti (Bombay, India) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B o o k Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diary of Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

101 I 19

137 151

167

185

193 201 209

Vol. 3, Nos. 3 + 4

Consideration of s o m e h o t forming m e t h o d s for producing better steels more cheaply (Review) P.O. Strandell ( S t o c k h o l m , Sweden) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

219

391 The causes of edge cracking in cold rolling (Review) B. Dodd and P. Boddington (Oxford, England) . . . . . . . . . . . . . . . . . . . . . . . Rotary forging developments in Japan. I. Machine development and forging research (Review) P.M. Standring and E. Appleton (Nottingham, England) . . . . . . . . . . . . . . . . . On the optimum die angle in fast wire drawing N. Cristescu (Bucharest, Romania) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Factors influencing the forming limit diagram: Part I. The experimental determination of the forming limits of sheet steel H.J. Kleemola and J.O. Kumpulainen (Helsinki, Finland) . . . . . . . . . . . . . . . . . Factors influencing the forming limit diagram: Part II. Influence of sheet thickness H.J. Kieemola and J.O. Kumpulainen (Helsinki, Finland) . . . . . . . . . . . . . . . . . An investigation into the forming of integral fins D. Bhattacharyya (Nedlands, Australia), A. Hajra (Haldia, India), A.K. De (Bombay, India) and R.K. Chakrabarti (Calcutta, India) . . . . . . . . . . . . . . . . . The effect of temperature and strain rate on the superplastic behaviour of P/M IN-100 superalloy A.A. Afonja (Cambridge, MA, U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The evolution of the metal-working rolling-mill in the 19th century (Historical Contribution) M.C. Duffy (Sunderland, England) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Report on the Vth International Conference on Production Research . . . . . . . . . . Book Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Letter to the Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diary of Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acknowledgement of Referees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Author Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents of Volume 3 (1979/1980) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

239

253 275

289 303

313

331

341 357 361 377 378 388 389 390