Lubricant for the working of metals by cold deformation

Working of metals by deformation. The lubricant forming the subject of the invention is of the type comprising a dispersing medium and a polymeric filler, and is characterised in that the dispersing medium consists of a mixture of residues from the distillation of industrial greases and vegetable oils and in that the polymeric filler employed is a dispersion polymer, these components being present in the lubricant in the following proportions (% by weight): dispersion polymer, 5 to 15; industrial grease distillation residues, 43 to 50; vegetable oil distillation residues, the remainder. The invention applies especially to the manufacture of articles made of materials which are difficult to deform. L'INVENTION CONCERNE LE TRAVAIL DES METAUX PAR DEFORMATION.LE LUBRIFIANT FAISANT L'OBJET DE L'INVENTION EST DU TYPE COMPRENANT UN MILIEU DE DISPERSION ET UNE CHARGE POLYMERE, ET EST CARACTERISE EN CE QUE LE MILIEU DE DISPERSION CONSISTE EN UN MELANGE DE RESIDUS DE DISTILLATION DE GRAISSES INDUSTRIELLES ET D'HUILES VEGETALES ET QUE L'ON UTILISE EN TANT QUE CHARGE POLYMERE, UN POLYMERE DE DISPERSION, CES COMPOSANTS ETANT CONTENUS DANS LE LUBRIFIANT DANS LES PROPORTIONS SUIVANTES ( EN POIDS): POLYMERE DE DISPERSION, 5 A 15; RESIDUS DE DISTILLATION DE GRAISSES INDUSTRIELLES, 43 A 50; RESIDUS DE DISTILLATION D'HUILES VEGETALES, LE RESTE.L'INVENTION S'APPLIQUE NOTAMMENT A LA FABRICATION DE PIECES EN MATERIAUX DIFFICILES A DEFORMER.