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Armored cable preheated-type cold rotary forging device and forging method thereof

An armored cable, rotary forging technology, used in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems that the shape and size cannot fully meet the design requirements, the dimensional accuracy of the parts does not meet the design requirements, and the production efficiency is affected. The effect of machining dimensions, reducing stress and strain, and improving tolerance levels

Active Publication Date: 2012-01-11
CHONGQING MATERIALS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of springback, the shape and size of the part after unloading cannot be completely consistent with the shape and size of the mold surface, and the dimensional accuracy of the part cannot meet the design requirements, which has a great impact on production efficiency

Method used

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  • Armored cable preheated-type cold rotary forging device and forging method thereof
  • Armored cable preheated-type cold rotary forging device and forging method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 , a preheating type cold rotary forging device for armored cables, comprising a variable diameter swaging machine 4, the variable diameter swaging machine 4 is provided with a clamping feeding device 1, and the main frame of the variable diameter swaging machine 4 and the clamping feeding device 1 is provided with cylindrical temperature controllable heater 3.

[0028] The cylindrical temperature-controllable heater 3 is provided with a temperature controller 31 and a power regulator 32 .

[0029] A method for performing armored cable preheating type cold rotary forging with the above-mentioned armored cable preheating type cold rotary forging device, comprising the following steps:

[0030] a), Straightening

[0031] Straighten the armored cable 2 before rotary swaging;

[0032] b), clamping

[0033] Fix the straightened armored cable 2 on the clamping feeding device 1 of the variable diameter swaging machine 4, and adjust the feeding length;

[0034]...

Embodiment 2

[0041] see figure 1 , a method for carrying out armored cable preheating type cold rotary forging with the above-mentioned armored cable preheating type cold rotary forging device, comprising the following steps:

[0042] a), Straightening

[0043] Straighten the armored cable 2 before rotary swaging;

[0044] b), clamping

[0045] Fix the straightened armored cable 2 on the clamping feeding device 1 of the variable diameter swaging machine 4, and adjust the feeding length;

[0046] c), feeding

[0047] Start the clamping and feeding device 4, so that the workpiece of the armored cable 2 is placed on the axis of the cylindrical temperature-controllable heater 3;

[0048] d), heating

[0049] Start the heating equipment to heat the armored cable 2 to a temperature of 500±5°C;

[0050] e), rotary forging

[0051] The heated armored cable 2 is swaged on a variable-diameter swaging machine 4 at the holding temperature until the swaging is completed.

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Abstract

The invention discloses an armored cable preheated-type cold rotary forging device and a forging method thereof. The forging device comprises a reducing rotary forging machine which is provided with a clamping and feeding device; a cylindrical temperature controllable heater is arranged between a host machine of the reducing rotary forging machine and the clamping and feeding device. The method for carrying out armored cable preheated-type cold rotary forging by utilizing the armored cable preheated-type cold rotary forging device comprises the following steps of: a) straightening; b) clamping; c) feeding; d) heating; and e) rotary forging. According to the invention, the springback quantity of materials in the rotary forging process can be reduced obviously; and by preheating a work piece continuously in the rotary forging process, the stress strain of a work piece inner region is reduced and the plastic deformation capability of work piece materials is improved. A result shows that when the armored cable rotary forging is carried out by adopting the rotary forging technology, the springback quantity of the materials is reduced by 50% in the rotary forging process, the finishing size of the rotary forging piece is ensured, and the tolerance grade of the rotary forging piece is improved effectively.

Description

technical field [0001] The invention relates to a forging device, in particular to an armored cable preheating type cold rotary forging device and a forging method thereof. Background technique [0002] Forging forming technology is an important technology in metallurgical production, widely used in aviation, aerospace, machinery, shipbuilding and other fields, and occupies an extremely important position in the national economy. Among them, rotary forging is the main method of precision forging. Through rapid rotary forging, the pressure exceeding the compressive yield strength of the material acts on the workpiece, causing plastic deformation of the metal and transfer of internal particles, so that the workpiece structure is dense and the grains are refined. , The plastic deformation is more uniform, and the internal metal fiber streamline is profiling, thereby improving the mechanical properties of the material. In addition, cold rotary forging also has incomparable adva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00
Inventor 陈洁王华唐会毅张立新罗维凡刘敏张祖力
Owner CHONGQING MATERIALS RES INST
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