Additive-subtractive hybrid manufacturing of Inconel 718 alloy by direct laser deposition/abrasive belt grinding: forming quality, microstructure and tensile properties

IF 4.4 3区工程技术 Q1 ENGINEERING, CIVIL

Archives of Civil and Mechanical Engineering Pub Date : 2025-04-12 DOI:10.1007/s43452-025-01191-w

Tao Wang, Chao Wang, Xufeng Yan, Juanjuan Li, Wenxi Wang, Jun Luo

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引用次数: 0

Abstract

Additive and subtractive hybrid manufacturing achieved broad recognition as an emerging technology, facilitating the processing of intricate components with enhanced geometric precision and dimensional accuracy. A direct laser deposition/abrasive belt grinding hybrid manufacturing process (DGHM) was utilized to produce thin-walled Inconel718 (In718) alloy parts in this study. The forming quality analysis, microstructure characterization, and mechanical property testing of the In718 parts were carried out. The performance indexes of In718 alloy prepared by DGHM improved in density and side roughness. The overall content of precipitated phases in the In718 alloy was limited, with the Laves phase primarily existing in the form of fine particles. The thin-walled parts manufactured by DGHM achieved tensile yield strength of 775.49 MPa and an average residual compressive stress of 540 MPa. The mechanical properties of DGHM specimens surpassed those of DLD specimens. In addition, a curved hollow thin-walled part (simplified hollow turbine blade) was prepared through the optimized DGHM process, which verified the feasibility of the hybrid manufacturing system.

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直接激光沉积/砂带磨削制备Inconel 718合金：成形质量、显微组织和拉伸性能

增减法混合制造作为一种新兴技术获得了广泛的认可，促进了复杂部件的加工，提高了几何精度和尺寸精度。本研究采用直接激光沉积/砂带磨削混合制造工艺（DGHM）生产Inconel718 （In718）合金薄壁零件。对In718零件进行了成形质量分析、微观组织表征和力学性能测试。DGHM法制备的In718合金的性能指标在密度和侧面粗糙度方面均有提高。In718合金中析出相总体含量有限，Laves相主要以细小颗粒形式存在。DGHM薄壁件的抗拉屈服强度为775.49 MPa，平均残余压应力为540 MPa。DGHM试样的力学性能优于DLD试样。此外，通过优化后的DGHM工艺制备了弯曲中空薄壁零件（简化中空涡轮叶片），验证了混合制造系统的可行性。

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来源期刊

Archives of Civil and Mechanical Engineering 工程技术-材料科学：综合

CiteScore

6.80

自引率

9.10%

发文量

201

审稿时长

4 months

期刊介绍： Archives of Civil and Mechanical Engineering (ACME) publishes both theoretical and experimental original research articles which explore or exploit new ideas and techniques in three main areas: structural engineering, mechanics of materials and materials science. The aim of the journal is to advance science related to structural engineering focusing on structures, machines and mechanical systems. The journal also promotes advancement in the area of mechanics of materials, by publishing most recent findings in elasticity, plasticity, rheology, fatigue and fracture mechanics. The third area the journal is concentrating on is materials science, with emphasis on metals, composites, etc., their structures and properties as well as methods of evaluation. In addition to research papers, the Editorial Board welcomes state-of-the-art reviews on specialized topics. All such articles have to be sent to the Editor-in-Chief before submission for pre-submission review process. Only articles approved by the Editor-in-Chief in pre-submission process can be submitted to the journal for further processing. Approval in pre-submission stage doesn''t guarantee acceptance for publication as all papers are subject to a regular referee procedure.