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Technology for extruding specially-shaped aluminum barrel with square head

A special-shaped and process technology, applied in the direction of metal extrusion dies, etc., can solve the problems of affecting product consistency, high cost of consumables, and high cost, and achieve the effects of stable product quality, convenient operation and low cost.

Inactive Publication Date: 2014-04-02
上海久丰汽车零件有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above-mentioned processing method has the following defects: many procedures, long process, high cost, and it will also affect the consistency of the product, and the cost of time-consuming and consumable materials for mechanical processing is high.

Method used

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  • Technology for extruding specially-shaped aluminum barrel with square head
  • Technology for extruding specially-shaped aluminum barrel with square head
  • Technology for extruding specially-shaped aluminum barrel with square head

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] see figure 1 , the structure of the special-shaped cylinder with a square head is a cylinder body 11, a square head 13, and an oval protrusion 14 from bottom to top. Two convex ribs 12 are symmetrically arranged on the outer surface of the cylinder, and the symmetrical axis of the two convex ribs 12 overlaps with the center line of the square head 13, and the long axis and the short axis of the oval protrusion 14 are respectively aligned with the square head 13. The two centerlines of .

[0027] The extrusion process of the aluminum square-head special-shaped cylinder of the present invention can form the blank into an extrusion of the square-head special-shaped cylinder through a single extrusion process, and the extrusion can be formed into a cylinder billet, a square-end billet and an oval convex The billet is blanked, and the center line of the square billet is...

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Abstract

The invention discloses a technology for extruding a specially-shaped aluminum barrel with a square head. The technology comprises the following steps: a blanking step: selecting a square aluminum bar, and cutting the square aluminum bar into a blank according to set length and weight; a blank deburring step; a blank abrasive blasting step; a blank surface lubricating step; an extrusion molding step: putting the blank in an extrusion die, molding the blank into an extrusion for the specially-shaped barrel with the square head through a one-step extrusion technology, forming a barrel body blank, a square head blank and an ellipsoidal projection blank by the extrusion, and deflecting the central lines of the square head blank for 3.5-4.5 degrees relative to the symmetric axis of two projecting ribs on the barrel body blank; respectively overlapping a long axis and a short axis of the ellipsoidal projection blank with the two central lines of the square head blank; a finish processing step. The extruding technology has the characteristics of few procedures, short process, low cost, convenience in operation, stable product quality and great product consistency and is suitable for massive production.

Description

technical field [0001] The invention relates to an extrusion process of an aluminum square-head special-shaped cylinder. Background technique [0002] Aluminum square shaped cylinder (see figure 1 , figure 2 a. figure 2 b and figure 2 c) It is an integral hydraulic cylinder block for marine use. The structure of the special-shaped aluminum cylinder with a square head is a cylinder body 11, a square head 12 and an oval protrusion 14 in sequence from bottom to top. The overall height of the aluminum cylinder is about 300mm, the height of the cylinder body 11 plus the square head 13 is 247.65-266.19mm, the height of the square head 13 is 21.6±0.25mm, and the height of the oval protrusion 14 is 37.6±0.25mm. The inner hole of the cylinder 11 is a round hole and a blind hole with a deep depth, reaching the requirement of more than 225mm. The outer surface of the cylinder 11 is a special-shaped cylinder, which is symmetrical on the surface of the cylinder (63±0.25mm in diame...

Claims

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Application Information

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IPC IPC(8): B21C23/02B21C25/02B21C35/02
Inventor 谢华民
Owner 上海久丰汽车零件有限公司
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