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Titanium alloy micro gear pulse current auxiliary microforming floating die

A micro-gear and pulse current technology, which is applied in the direction of manufacturing tools, metal processing equipment, forging/pressing/hammer devices, etc., can solve the problems such as the difficulty of filling the lower corner of the micro-gear, the large force of the micro-mold, and the short service life of the die. Achieve good filling quality, reduce deformation resistance and improve production efficiency

Inactive Publication Date: 2018-12-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low heating efficiency of the existing titanium alloy micro-gear die forging micro blanks, large force on the micro-mold, difficulty in filling the lower corners of the micro-gear, and short service life of the die, the invention further proposes a titanium alloy micro-gear pulse current assisted forging Forming Floating Die

Method used

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  • Titanium alloy micro gear pulse current auxiliary microforming floating die
  • Titanium alloy micro gear pulse current auxiliary microforming floating die
  • Titanium alloy micro gear pulse current auxiliary microforming floating die

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specific Embodiment approach 1

[0019] Specific implementation mode one: combine figure 1 To illustrate this embodiment, a titanium alloy micro-gear pulse current assisted micro-forming floating mold in this embodiment includes an upper die assembly, a lower die assembly, a punch 5, a punch 19, a die 21, a pulse power supply 22, The first wire 23, the second wire 25 and two wire joints 24, the upper mold assembly and the lower mold assembly are arranged in sequence from top to bottom, and the punch 5 is installed on the lower surface of the upper mold assembly , the punch 19 is installed on the upper surface of the lower mold assembly, the die 21 is set on the punch 19, and the inner wall of the die 21 and the upper end surface of the punch 19 form a cavity, and the cavity is located at the punch 5, the titanium alloy forging blank 6 is set in the cavity, one end of the first lead 23 is connected to the upper mold assembly through a lead joint 24, and the other end of the first lead 23 is connected to the pu...

specific Embodiment approach 2

[0022] Specific implementation mode two: combination figure 1 Describe this embodiment, the upper mold assembly of a titanium alloy micro-gear pulse current assisted micro-forming floating mold in this embodiment includes an upper template 1, an upper insulating plate 2, an upper backing plate 3 and a punch fixing plate 4, the upper Formwork 1, upper insulating plate 2, upper backing plate 3 and punch fixing plate 4 are stacked from top to bottom in sequence. Upper template 1 is detachably connected to upper insulating plate 2 through screws, and upper insulating plate 2 is connected to the impulse fixing plate through screws. 4 connection, one end of the first lead 23 is connected with the punch fixing plate 4 through a wire joint 24, and the upper end of the punch 5 is embedded in the middle part of the lower surface of the punch fixing plate 4. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0023] Specific implementation mode three: combination figure 1 Describe this embodiment, the lower mold assembly of a titanium alloy micro-gear pulse current assisted micro-forming floating mold in this embodiment includes a blank holder 7, a die fixing block 11, a spacer 12, and a first lower insulating plate 13 , the lower backing plate 14, the second lower insulating plate 15, the lower template 16, the insulating block 17, the pin 18, the sliding block 20 and two springs 10, the first lower insulating plate 13, the lower backing plate 14, the second lower insulating plate 15. The lower formwork 16 is stacked sequentially from top to bottom. The lower formwork 16 is detachably connected to the second lower insulating plate 15 through screws, and the second lower insulating plate 15 is detachably connected to the lower backing plate 14 through screws. The second wire 25 One end of the die is connected to the lower backing plate 14 through another wire joint 24, the lower en...

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Abstract

The invention relates to a microforming floating die, in particular to a titanium alloy micro gear pulse current auxiliary microforming floating die, and belongs to the technical field of mechanicalmanufacturing and plastic micro forming. The problems that an existing titanium alloy micro gear die forging micro blank is low in heating efficiency, the micro die is large in stress, a lower cornerof a micro gear is difficult to fill, and the service life of the die is short are solved. A punch is arranged on the lower surface of an upper mold assembly, a male mold is arranged on the upper surface of a lower mold assembly, a male mold is sleeved with a female mold, a mold cavity is formed under the punch, a titanium alloy forging blank is arranged in the mold cavity, one end of a first wireis connected with the upper mold assembly through a wire joint, the other end of the first wire is connected with a pulse power source, one end of a second wire is connected with the lower mold assembly through the other wire joint, and the other end of the second wire is connected with a pulse power source.

Description

technical field [0001] The invention relates to a micro-forming floating mold, in particular to a micro-forming floating mold assisted by a pulse current of a titanium alloy micro-gear, and belongs to the technical field of mechanical manufacturing and plastic micro-forming. Background technique [0002] Titanium alloy materials have low thermal conductivity, large amount of springback after processing deformation, poor cutting performance, difficult to guarantee processing accuracy, and poor room temperature plasticity. Titanium alloy microstructure parts need to be formed at high temperature. This puts forward strict requirements on the plastic micro-forming process, mold design, and lubrication methods, making it difficult to realize the micro-forming technology that only relies on the mold to apply load. [0003] The current-assisted micro-forming technology is to apply the electric field directly to the billet, through energy transmission, conversion and field excitatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21J1/06
CPCB21J13/02B21J1/06
Inventor 徐杰郭斌单德彬包建兴王春举汪鑫伟陈万吉
Owner HARBIN INST OF TECH
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