A Forming Method of Cylinder Workpiece with Transverse Internal Ribs

A technology of body workpieces and workpieces, which is applied in the field of forming cylindrical workpieces with transverse inner ribs, can solve the problems of high machining cost, large machining allowance and high cost, improve performance and production efficiency, and prevent material breakage. , the effect of reducing shear stress
CN113182474BActive Publication Date: 2022-04-15ZHONGBEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHONGBEI UNIV
Publication Date
2022-04-15

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Abstract

The invention relates to a method for forming a cylindrical workpiece with transverse internal ribs. The forming method adopts the process of blanking + upsetting + reverse extrusion, and is characterized in that it adopts the processes of grooving, turning over, and turning over the inside of the blank. Rib molds, etc.; among them: the punch of the inner rib mold of the flip blank includes a punch correction ring, a punch plate, a connecting rod mechanism, a spring, a pressure rod, a limit tube, and a pressure ring; the die includes an inner flip die, an inner flip Die support ring and lower template; the invention solves the problem of difficult demoulding when extruding cylindrical parts with large or small mouths. The shear stress of the thick-walled ring rib at the upper end prevents the material from breaking during the overturn and improves the quality of the outer surface of the extruded cylinder; it saves material and has high efficiency, and is suitable for mass production.
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Description

technical field

[0001] The invention belongs to an extrusion method for forming metal material parts, in particular to a method for forming cylindrical workpieces with transverse internal ribs. Background technique

[0002] At present, for cylindrical workpieces with transverse internal ribs at the ends, such as certain types of large pressure vessels (see figure 1 ) manufacturing, the structural characteristics of the workpiece: ①The cylinder body is thin-walled (10mm), and the end is thick-walled (100mm wide, 100mm thick), and the overall thickness is different, so it cannot be stretched and formed by sheet metal; Forming a thick-walled cylinder with the same inner diameter (110) as the end portion results in a large waste of material.

[0003] Such as figure 1 As shown, for the cylindrical workpiece 1 with transverse internal ribs, the traditional forming process mostly adopts the machining method after extrusion, casting method, and welding method after stamping. Or u...

Claims

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