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Manufacturing method of 718plus special-shaped cartridge receiver forging

A manufacturing method and forging technology, which are applied in the field of 718plus special-shaped casing forgings, can solve the problems that the structure and properties are difficult to meet the use requirements, the forging temperature range is narrow, and the forgings streamline cutting, etc., so as to avoid cracking and coarse grains. , The effect of improving the forming rate

Inactive Publication Date: 2018-06-29
GUIZHOU AVIATION TECHN DEV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, the forgeable temperature range of 718Plus alloy is narrow, and forging cracks are prone to occur. If the forging temperature is not reached, the cracks on the surface of the material will be serious, which will greatly lead to poor quality of forged parts, and the temperature is higher. , it is easy to lead to coarse grain size, which makes it difficult for the structure and performance to meet the requirements of use; it is specifically reflected in the following aspects: the availability of 718Plus alloy materials is low, the material is easy to crack, the flow line of forgings is severely cut, and the machining allowance is large

Method used

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  • Manufacturing method of 718plus special-shaped cartridge receiver forging
  • Manufacturing method of 718plus special-shaped cartridge receiver forging
  • Manufacturing method of 718plus special-shaped cartridge receiver forging

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Embodiment

[0024] A method for manufacturing 718plus special-shaped casing forgings, such as figure 1 As shown, it includes the steps of sawing 718plus alloy bar, heating and heat preservation, preparation of rectangular ring billet, and rolling. In the heating and heat preservation step, the sawed 718plus alloy bar is heated to 1000-1100°C, and heat preservation is carried out. Proceed according to the following method, according to the effective thickness of the bar, keep warm for 6 minutes according to 10mm.

[0025] After the heat preservation is completed, it is subjected to upsetting, punching, horse frame expansion and pre-rolling into a rectangular ring billet 1. In some embodiments, before the above-mentioned heating of the rod, it is wrapped with ceramic fiber After that, it is heated to reduce the temperature drop when it is sent into the upsetting punching hole, which can ensure that the temperature during processing can meet the requirements and avoid cracks during processin...

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Abstract

The invention relates to the technical field of forging manufacturing, in particular to a manufacturing method of a 718plus special-shaped cartridge receiver forging. Binding of ceramic fibers is carried out, and the heat preservation time is determined according to the effective thickness of materials, so that the interiors and the exteriors of the materials are evenly heated, the temperature drop generated in the transfer process is reduced, the temperature in the machining process can effectively meet machining requirements, the defect that cracks are generated on the surfaces of the materials during machining due to the too low temperature is avoided, meanwhile, the defect that in order to meet the requirement that no crack is generated on the surfaces of the materials during machining, when the materials are heated to reach high temperature, the grain size is large, and the structure property is poor can be avoided, the energy consumption is reduced, the percent of pass of products is increased, and the manufacturing cost of the forging is reduced.

Description

technical field [0001] The invention relates to the technical field of forging manufacturing, in particular to a method for manufacturing a 718plus special-shaped casing forging. Background technique [0002] 718Plus alloy is a precipitation hardening nickel base superalloy with superior high temperature properties and good machinability. The design of this alloy takes into account the high temperature performance and thermal stability of Waspaloy alloy and the excellent processability of 718 alloy. It is the preferred raw material for high-quality rotating parts of jet engines. The service temperature of 718Plus alloy is 100℉ (55°) higher than that of 718 alloy, and it has higher strength, excellent formability, better wear resistance and reduced prone to weld cracking. [0003] However, the forgeable temperature range of 718Plus alloy is narrow, and forging cracks are prone to occur. If the forging temperature is not reached, the cracks on the surface of the material wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B23P2700/01
Inventor 卢漫宇孙传华谢撰业吴永安项春花王春梅刘鹏
Owner GUIZHOU AVIATION TECHN DEV
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