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drop-forging
drop-forging n.
Brit. 
/ˈdrɒpˌfɔːdʒɪŋ/
, /ˈdrɒpˌfɔːdʒɪŋ/U.S. /ˈdrɑpˌfɔrdʒɪŋ/
forging in which a heavy weight is repeatedly dropped on to heated metal, forcing it into a die; also, a forging made by this method./ˈdrɑpˌfɔrdʒɪŋ/ΘΚΠ
society > occupation and work > industry > working with specific materials > working with metal > [noun] > forging or shaping > types or methods of
planishing1361
malleationc1429
flatting1611
gold beating1621
shingling1674
skelping1803
upsetting1815
swaging1832
drop-forginga1884
dinging1923
upending1932
a1884 E. H. Knight Pract. Dict. Mech. Suppl. 277/2 Drop forging, one made in that form of press in which the blow is by impact instead of by mere pressure.
1897 Outing 30 278/2 The hammers that are pounding out the drop-forgings.
1909 Engineer 107 277 Drop forgings are cheaper and more accurate than hand forgings.
1925 Jrnl. Iron & Steel Inst. 111 527 Recent developments in drop-forging practice.
1959 Jrnl. Amer. Med. Assoc. 191 94/3 Calculating the power required in drop forging.
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