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Manufacturing method for large internal T-shaped ring forge piece blank of SB564UNS N06690 alloy

A technology of SB564UNSN06690, ring-shaped forgings, applied in metal rolling, metal processing equipment, etc., can solve problems such as difficulty in direct ring-rolling, difficulty in filling the cavity with billet, and high resistance to material deformation, so as to achieve high production efficiency and reduce Deformation resistance, the effect of high forging quality

Active Publication Date: 2014-11-19
GUIZHOU AEROSPACE XINLI CASTINGSAND FORGINGS
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Problems solved by technology

[0002] SB564UNS N06690 alloy large inner T-shaped forgings, due to the diameter greater than 3000mm, irregular shape, narrow deformation temperature range of SB564UNS N06690 alloy material, high deformation resistance of the material, etc., it is difficult to form ring rolling directly, and it is difficult to form ring rolling directly. Membrane forging needs to manufacture a large number of molds, and then use a hydraulic press to shape the blank, and the quality of the manufactured blank is unstable; directly using a T-shaped mold for ring rolling, there is a problem that the blank is difficult to fill the cavity

Method used

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  • Manufacturing method for large internal T-shaped ring forge piece blank of SB564UNS N06690 alloy
  • Manufacturing method for large internal T-shaped ring forge piece blank of SB564UNS N06690 alloy
  • Manufacturing method for large internal T-shaped ring forge piece blank of SB564UNS N06690 alloy

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Embodiment Construction

[0024] The present invention is described in detail below in conjunction with accompanying drawing:

[0025] Such as Figure 1-5 As shown, the SB564UNS N06690 alloy (American ASME standard, belonging to the difficult-to-deform high-temperature resistant nickel-based alloy) large inner T-shaped ring forging blank 1, because the outer diameter is greater than 3000mm, the shape is irregular (there is a trapezoidal protrusion inside the ring), And the deformation temperature range of SB564UNS N06690 alloy material is narrow. The method of the present embodiment mainly includes the following steps:

[0026] A, according to the shape and structure of the inner T-shaped annular forging blank 1, make a processing step mold 2;

[0027] B. Heating the SB564UNS N06690 alloy ingot to 1150-1130°C, and then through upsetting, using a punch with a diameter of 300mm for punching and reaming to make the original billet 3;

[0028] C. Heat the original blank 3 into the furnace to 1150°C, and...

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Abstract

The invention discloses a manufacturing method for a large internal T-shaped ring forge piece blank of SB564UNS N06690 alloy. Firstly, upsetting and drawing are performed through a hydraulic forging press, a punch with the diameter of 300mm is used for punching, then chambering and rounding are performed, twice rolling is performed on a ring rolling mill by the aid of a step mold, an original blank with a rectangular section is circularly rolled into a middle blank with a step, then the middle blank is rotated by 180 degrees, and second rolling is performed, so that the internal T-shaped annular forge piece blank is obtained. According to the manufacturing method for the large internal T-shaped annular forge piece blank of the SB564UNS N06690 alloy, the structure of the manufactured forge piece blank is uniform, grains are refined, shapes are rectangular, and the forge piece quality and the production efficiency are high.

Description

technical field [0001] The invention belongs to the technical field of metal material pressure processing, and in particular relates to a production method of a SB564UNS N06690 alloy large-scale internal T-shaped annular forging blank. Background technique [0002] SB564UNS N06690 alloy large inner T-shaped forgings, due to the diameter greater than 3000mm, irregular shape, SB564UNS N06690 alloy material deformation temperature range is narrow, material deformation resistance is large, etc., it is difficult to directly ring roll forming, it is difficult to directly ring roll forming, and adopt Membrane forging needs to manufacture a large number of molds, and then use a hydraulic press to shape the billet, and the quality of the manufactured blank is unstable; directly using a T-shaped die for ring rolling, there is a problem that the billet is difficult to fill the cavity. Contents of the invention [0003] The object of the present invention is to overcome the problems e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00B21H1/06
Inventor 万东海张令赵晓光杜力军冉熊波
Owner GUIZHOU AEROSPACE XINLI CASTINGSAND FORGINGS
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