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Manufacturing method of cabin door hinge

A manufacturing method and hinge technology, which is applied in the field of hinges, can solve problems such as cracks, folding, and unstable feeding, and achieve the effects of ensuring consistency, simple process, and omitting the bending process

Active Publication Date: 2021-02-09
沈阳中钛装备制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the bending process is prone to defects such as unsteady discharge, cracks and folds.

Method used

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  • Manufacturing method of cabin door hinge
  • Manufacturing method of cabin door hinge
  • Manufacturing method of cabin door hinge

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the invention clearer, the technical solutions in the invention will be clearly described below in conjunction with the accompanying drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of them. Example. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.

[0040] In the description of the embodiments of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "up", "down", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present invention. and simplified descriptions, rather than indicating or implying that the device or element referre...

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Abstract

The invention relates to the field of hinges, and provides a manufacturing method of a cabin door hinge. The method comprises the following steps that a pre-forging die is prepared in advance, specifically, pre-forging cavities are formed in the surface of an upper pre-forging die and the surface of a lower pre-forging die through stamping, wherein each pre-forging cavity comprises two centrosymmetric L-shaped cavity bodies, and the end of the long edge of one L-shaped cavity body of the two L-shaped cavity bodies abuts against the short edge of the other L-shaped cavity body; a finish forgingdie is prepared in advance, specifically, hinge cavities are formed in the surface of an upper finish forging die and the surface of a lower finish forging die through stamping according to the shapeof the cabin door hinge; a titanium alloy round bar is subjected to heating and thermal insulating, and then is forged and drawn into a blank; the blank is placed in the pre-forging cavities to be forged, so that a pre-forged piece is obtained; the pre-forged piece is cut into two L-shaped pre-forged blanks; and the pre-forged blanks are placed in the hinge cavities to be pressed. According to the method, the bending procedure is omitted, and the situation that in the pre-forging process, the parts, on the two sides of the corners of the L-shaped cavity bodies, of the blanks extrude each other due to metal flowing to generate folding and cracks is avoided.

Description

technical field [0001] The invention relates to the technical field of hinges, in particular to a method for manufacturing a hatch hinge. Background technique [0002] At present, the manufacturing process of hatch hinges generally includes processes such as billet making, bending, pre-forging, and final forging. Among them, the bending process is prone to defects such as unsteady discharge, cracks and folds. Especially for titanium alloy blanks, since the production temperature of titanium alloys is 900°C to 1000°C, its deformation resistance is greater than that of steel, so titanium alloy blanks are prone to folding and cracks during the bending process. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. Therefore, the present invention proposes a method for manufacturing a hatch hinge to simplify the process and avoid defects such as folding and cracks caused by the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K13/02B21J5/00B21J5/02B21J13/02
CPCB21K13/02B21J5/002B21J5/02B21J13/02
Inventor 李志杰钟军陈妍孙建月
Owner 沈阳中钛装备制造有限公司
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