IT1233522B - Roll tool arrangement for thread rolling
- Google Patents
Roll tool arrangement for thread rolling
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Publication number
IT1233522B
IT1233522BIT8941563AIT4156389AIT1233522BIT 1233522 BIT1233522 BIT 1233522BIT 8941563 AIT8941563 AIT 8941563AIT 4156389 AIT4156389 AIT 4156389AIT 1233522 BIT1233522 BIT 1233522B
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Application filed by Rostovsky Na Donu Inst SelskokfiledCriticalRostovsky Na Donu Inst Selskok
Priority to IT8941563ApriorityCriticalpatent/IT1233522B/en
Publication of IT8941563A0publicationCriticalpatent/IT8941563A0/en
Application grantedgrantedCritical
Publication of IT1233522BpublicationCriticalpatent/IT1233522B/en
Reduction Rolling/Reduction Stand/Operation Of Reduction Machine
(AREA)
Abstract
Tool for rolling threads into the surface of a workpiece (7) comprises a movable roll block (1) and a fixed roll block (2), each having cutting (3, 5) and calibrating (4, 6) parts in which the cutting surfaces are inclined at an angle (alpha) to the calibrating surfaces. The length (L3) of the cutting surface of the movable block (1) is 0.1D-2.0D, where D is the nominal diameter of the thread to be rolled. The length (L6) of the calibrating surface of the fixed block (2) is 3.0D-5.0D. The length (L5) of the cutting surface of the fixed block is 0.5 (L2-L6) where L2 is the length of the roll block (2) and L6 the length of the calibrating surface (6) of the fixed block. @(5pp Dwg.No.1/1)@
IT8941563A1989-04-051989-04-05Roll tool arrangement for thread rolling
IT1233522B
(en)