METHOD FOR MAKING ROD TYPE PARTS WITH HEADS FROM PSEUDO beta-TITANIUM ALLOYS

metallurgy, manufacture of parts suitable for using in machine engineering. SUBSTANCE: method comprises steps of rolling rods at temperature lower than that of (alpha+beta)/beta transition, subsequent cooling of rods in air, applying oxalate coating onto their surfaces, upsetting head and performing...

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Bibliographische Detailangaben
Hauptverfasser:	VOLODIN V.A, VOROB'EV I.A
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	metallurgy, manufacture of parts suitable for using in machine engineering. SUBSTANCE: method comprises steps of rolling rods at temperature lower than that of (alpha+beta)/beta transition, subsequent cooling of rods in air, applying oxalate coating onto their surfaces, upsetting head and performing multiple reduction of rod at rate 0.5-1 m/s; simultaneously rolling out rod and radius portion under head, knurling thread; aging articles at 450 C-550 C for 8-10 hours. EFFECT: enhanced strength and fatigue characteristics of rod shaped titanium parts. 1 tbl, 1 ex