Application of 3D Printing Sand Core（Mould） in Railway Castings

Zhang Lei; Wu Yongliang; Liu Tao; Yan Zhuoming; Liu Huaxue; Xiong Huoshun; Wang Lianhua; Xiong Bing; Fu Xiang

doi:10.15980/j.tzzz.2017.10.008

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Application of 3D Printing Sand Core（Mould） in Railway Castings
Vol. 37, Issue 10, Pages: 1071-1074(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.10.008

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[1]张磊,武永亮,刘涛,鄢卓明,刘华学,熊火顺,王连华,熊兵,付祥.3D打印砂芯(型)在铁路铸钢件中的应用研究[J].特种铸造及有色合金,2017,37(10):1071-1074.

Zhang Lei, Wu Yongliang, Liu Tao, et al. Application of 3D Printing Sand Core（Mould） in Railway Castings. [J]. Special Casting & Nonferrous Alloys 37(10):1071-1074(2017)
[1]张磊,武永亮,刘涛,鄢卓明,刘华学,熊火顺,王连华,熊兵,付祥.3D打印砂芯(型)在铁路铸钢件中的应用研究[J].特种铸造及有色合金,2017,37(10):1071-1074. DOI： 10.15980/j.tzzz.2017.10.008.

Zhang Lei, Wu Yongliang, Liu Tao, et al. Application of 3D Printing Sand Core（Mould） in Railway Castings. [J]. Special Casting & Nonferrous Alloys 37(10):1071-1074(2017) DOI： 10.15980/j.tzzz.2017.10.008.

摘要

研究了3DP和SLS两种砂芯（型）3D打印工艺在铁路铸钢件中的应用。分别采用上述两种工艺打印砂样并测试了砂样常规性能

打印了铁路钩舌砂芯并开展了铸造试验。结果表明

两种工艺打印砂样的常温强度和发气量均满足铸造生产要求;均可在无需开模的情况下快速打印钩舌砂芯

得到的铸件尺寸精确、表面光洁。

Abstract

Application of 3DP and SLS sand core（mould）3D printing technology has been researched in railway castings.Sand samples were printed by two technology

and properties were tested.Coupler knuckle cores were printed using two technology

and casting experiment has been carried out.The results show that compressive strength and gas evolution of the 3D printed sand cores can meet casting production requirements.Both two 3D printing technology can produce coupler knuckle cores efficiently without casting mould

and coupler knuckles have precise size and smooth surface.