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Rotary forging forming method for metal circular plate

A technology of oscillating rolling and forming processing, applied in the direction of sheets/plates, building components, etc., can solve the problems of low production efficiency, low material utilization rate, difficulty in controlling the shape and dimensional accuracy of circular plates, etc., and achieve high production efficiency , high material utilization rate, complete metal streamline effect

Active Publication Date: 2017-05-10
GRIMAT ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first method has high efficiency and is suitable for mass production, but this method produces a large amount of scraps while cutting the material, and the material utilization rate is not high. This is obviously not a good processing method for some precious metal materials; at the same time, using The circular plate obtained by cutting the rolled plate has the anisotropy of the rolled plate in its microstructure and properties
The production efficiency of the second method is low, and it is difficult to control the shape and dimensional accuracy of the circular plate, and it is often necessary to obtain a qualified circular plate by cutting or punching

Method used

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  • Rotary forging forming method for metal circular plate
  • Rotary forging forming method for metal circular plate

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specific Embodiment 1

[0032] Specific embodiment 1: select the Ta1 pure tantalum cold-forged bar material of Φ 60mm for use, prepare Φ 150 * 2mm soft state disc, it comprises the following steps:

[0033] (1) Design and processing of the circular plate swing rolling mold: the shape of the mold must meet the assembly requirements of the swing rolling machine mold base; the cavity 4 of the lower mold is flat-bottomed and circular, with an inner diameter of 150mm, and the cavity depth of the lower mold is 2mm; the upper mold 1 It is conical, and the taper angle 2 of the upper die is 179°.

[0034] (2) Vacuum anneal the Φ60mm Ta1 bar obtained by cold forging: 1100℃×60min, vacuum degree ≤1.33×10-3Pa.

[0035] (3) Cutting and blanking: Since metal tantalum is more expensive, wire cutting is used for blanking. Blank specification Φ60×12.9mm.

[0036] (4) Billet surface lubrication treatment: Since metal tantalum is easy to stick to the mold, in order to improve the surface quality of the metal circular ...

specific Embodiment 2

[0040] Specific embodiment 2: select the T2 red copper hot-extruded bar of Φ 80mm for use, prepare Φ 200 * 1.5mm hard disc, it comprises the following steps:

[0041] (1) Design and processing of the circular plate swing rolling mold: the shape of the mold must meet the assembly requirements of the swing rolling machine mold base; the cavity of the lower mold is flat-bottomed and circular, with an inner diameter of 200mm and a depth of 1.5mm; the upper mold is conical, with a cone Angle 178 ° .

[0042] (2) Annealing: Copper rods prepared by hot extrusion do not need to be annealed.

[0043] (3) Cutting and blanking: use sawing method for blanking. Blank specification Φ80×9.8mm.

[0044] (4) Billet surface lubrication treatment: Since T2 red copper has good fluidity and is not easy to stick to the mold, it is only necessary to spray ordinary oily lubricant on the surface of the billet.

[0045] (5) Oscillating rolling forming: place the billet at the center of the lower di...

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Abstract

The invention belongs to the technical field of metal plastic deformation and particularly relates to a rotary forging forming method for a metal circular plate. The method comprises the steps of rod annealing, cutting and blanking, blank surface lubricating, rotary forging forming, trimming removal, thermal treatment, obtaining of the finished circular plate and the like. According to the rotary forging forming method for the metal circular plate, large deformation machining of the metal circular plate can be conducted through a small-tongue rotary forging machine, the manufactured metal circular plate has the excellent structure property, the blank deformation is uniform, the metal streamline is complete and radial, the aeolotropism of the rolled plate is avoided, generation of a great amount of leftover materials is avoided, the material utilization rate is high, small or zero cutting machining can be achieved, metal materials are saved, the production efficiency is high, the production process is easy to operate, and the rotary forging forming method is suitable for batch production.

Description

technical field [0001] The invention belongs to the technical field of metal plastic deformation, and in particular relates to a metal circular plate swing rolling forming processing method. Background technique [0002] Metal disc is a commonly used metal raw material. The processing method and technology of metal disc directly affect the internal structure and performance of metal disc and the utilization rate of materials. [0003] In the prior art, there are two traditional processing methods for metal circular plates: the first method is to use methods such as cutting or punching to obtain the rolled large-size plates directly; the second method is to use ordinary rolling mills to The circular billet is obtained by frequent cross-reversing rolling to obtain a circular plate. The first method has high efficiency and is suitable for mass production, but this method produces a large amount of scraps while cutting the material, and the material utilization rate is not high...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00F16S1/00
Inventor 闫晓东
Owner GRIMAT ENG INST CO LTD
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