Titlebook: Metal Forming; John D. Beadle Textbook 1971Latest edition Macmillan Publishers Limited 1971 engineering.metals.production

Spongy-Bone

https://doi.org/10.1007/978-1-349-01188-9engineering; metals; production

FLAX

wangle

Forming Materials,and from this situation the modern steels and non-ferrous alloys evolved. In many cases the acceptance of a new metal or alloy led to the development of improved fabricating methods in order that the desirable properties could be used effectively.

首創(chuàng)精神

Closed Die Forging,lway, aircraft and general engineering industries. Most forgings are made from hot metal but a limited range of shapes can be produced by cold forging. The basic techniques used to produce closed die forgings are discussed below.

即席

搏斗

Cold Heading,inally forming in one or more blows. The presses range from relatively simple machines equipped with a single punch and die, forming the part in a single blow, to complex multi-die/punch machines with integral means for transferring the part through the die sequence.

受傷

High Energy Rate Forming,s called, enables shaping and forming operations to be carried out which would be impossible by other means. Shapes can be produced in metal using either one or the other of two established processes — electromagnetic or electrohydraulic forming.

FER

Mirage

暫時(shí)過來

Milling,ntricity is confirmed by rotating the cutter and ‘clocking’ the successive cutting edges the fault can usually be traced to defective cutter grinding, a bent arbor, foreign matter between the spacing collars, or in the cone bore of the spindle, radial pressure from the driving key, or excessive tightening of the draw-bar.