FORMATION OF CYLINDRICAL PARTS

PURPOSE:To manufacture cylindrical parts having uniform diameters and shapes, by forming a plate-shaped blank material in a round shape between two rolls in such a way that burrs at the end surface of the material are bitten into the outer circumference of the roll. CONSTITUTION:Burrs 12a, 12a exist...

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Bibliographic Details
Main Author MATSUZAKI TOSHIYUKI
Format Patent
LanguageEnglish
Published 23.07.1982
Subjects
AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
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Summary:PURPOSE:To manufacture cylindrical parts having uniform diameters and shapes, by forming a plate-shaped blank material in a round shape between two rolls in such a way that burrs at the end surface of the material are bitten into the outer circumference of the roll. CONSTITUTION:Burrs 12a, 12a exist while facing mutually in opposite directions, at both end surfaces 12, 12 of a cut plate-shaped blank material 11. The material 11 is so inserted between both rolls 13, 14 that the burr 12a at the end surface of the material 11 faces to an outer circumference roll 14. Then the burr 12a of the material 11 is pinched between both the rolls 13, 14 to be rounded with the rotation of rolls in the direction of the arrows 16, 17, while biting the roll 14. The shape of the material near both ends 12, 12 is slightly straight, but a part 11a having a cylindrical shape as a whole, is obtained by rounding the material 11a into a cylindrical one around the core roll 13. Further, the roll 14 is made of a hard elastic material.
Bibliography:Application Number: JP19810003626