Investigation and Optimization of Investment Casting 0Cr17Ni4Cu3Nb Stainless Steel Parts of Aero-Engines

Huang Jing; Ma Yuan; Wang Mingjie; Wang Ye; Ji Zesheng

doi:10.15980/j.tzzz.2019.02.012

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Investigation and Optimization of Investment Casting 0Cr17Ni4Cu3Nb Stainless Steel Parts of Aero-Engines
Vol. 39, Issue 2, Pages: 159-162(2019)
Published： 2019 ，
DOI： 10.15980/j.tzzz.2019.02.012

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[1]黄静,马原,王明杰,王晔,吉泽升.精密铸造0Cr17Ni4Cu3Nb不锈钢航空发动机零件[J].特种铸造及有色合金,2019,39(02):159-162.

Huang Jing, Ma Yuan, Wang Mingjie, et al. Investigation and Optimization of Investment Casting 0Cr17Ni4Cu3Nb Stainless Steel Parts of Aero-Engines. [J]. Special Casting & Nonferrous Alloys 39(2):159-162(2019)
[1]黄静,马原,王明杰,王晔,吉泽升.精密铸造0Cr17Ni4Cu3Nb不锈钢航空发动机零件[J].特种铸造及有色合金,2019,39(02):159-162. DOI： 10.15980/j.tzzz.2019.02.012.

Huang Jing, Ma Yuan, Wang Mingjie, et al. Investigation and Optimization of Investment Casting 0Cr17Ni4Cu3Nb Stainless Steel Parts of Aero-Engines. [J]. Special Casting & Nonferrous Alloys 39(2):159-162(2019) DOI： 10.15980/j.tzzz.2019.02.012.

摘要

基于数值模拟分析技术

采用正交试验和试验验证对熔模铸造ZG0Cr17Ni4Cu3Nb不锈钢航空发动机尾部搭接件中的缩孔进行了分析

研究了浇注温度、浇注速度和铸型温度对缩孔体积的影响。结果发现

浇注温度对铸件缩孔影响最大

其次是型壳温度。结合数值模拟对该铸件的浇注系统进行了优化。通过实际浇注试验对模拟结果进行验证

并试制出了合格的铸件。优化后的工艺方案:左右两侧的内浇口对称布置

浇注温度为1 560℃、浇注速度为320mm·s

-1

、型壳温度为920℃。

Abstract

Based on the numerical simulation analysis

the shrinkage porosities in ZG0Cr17Ni4Cu3Nb alloy parts for tail lap part of aircraft engine

which was manufactured by investment casting

were investigated by the orthogonal experiment method and trial.The effects of the main process parameters

such as pouring temperature

casting speed and mold temperature

on probability of shrinkage volume were expounded.And the influence of various process parameters on shrinkage porosities was described.The results reveal that the pouring temperature has the largest effect and the second is the mold temperature.Combined with numerical simulation

the design of the gating system was also optimized.The reliability of the simulation results was verified through trial-production

and the qualified castings were produced sucessfully.The optimized process parameters are presented as follow:the symmetry arrangement of the inner gate on both sides

pouring temperature of 1 560℃

pouring rate of 320 mm·s

-1

and mold temperature of 920 ℃.