METHOD FOR HOT FORMING OF PART OF SHEET BLANK

FIELD: hot forming of parts of sheet blanks from hard-to-form alloys. SUBSTANCE: method comprises steps of placing blank in clamps over die with gap exceeding value of linear thermal expansion of blank at heating it until predetermined temperature; moving punch at heating blank while keeping minimum...

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Bibliographische Detailangaben
Hauptverfasser:	MURAV'EV V.I, MAR'IN S.B, SIDOROV JU.G, MAR'IN B.N, MERKULOV V.I, FILIMONOV S.V
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	FIELD: hot forming of parts of sheet blanks from hard-to-form alloys. SUBSTANCE: method comprises steps of placing blank in clamps over die with gap exceeding value of linear thermal expansion of blank at heating it until predetermined temperature; moving punch at heating blank while keeping minimum spacing between punch and blank; mounting sheet blank in clamps by effort providing pulling out of blank from clamps at stretching blank along punch. EFFECT: enhanced quality of formed parts due to reduced saturation of surface layer of blanks with oxygen and hydrogen. 1 dwg, 1 ex