Mechanical behaviour and interface evaluation of hybrid MIM/PBF stainless steel components. Issue 10 (14th October 2020)

• Record Type: Journal Article
• Authors: Mehmeti, Aldi; Penchev, Pavel; Lynch, Donal; Vincent, Denis; Maillol, Nathalie; Maurath, Johannes; Bajolet, Julien; Wimpenny, David Ian; Essa, Khamis; Dimov, Stefan
• Is Part Of: Rapid prototyping journal. Volume 26:Issue 10(2020)
• Page Start: 1809
• Page End: 1825
• Publication Date: 2020-10-14
• Subjects: Additive -- PBF technology -- Mechanical properties of materials -- Additive manufacturing -- Hybrid manufacturing -- Combination of processes -- Hybrid stainless steel components -- Metal injection moulding; Engineering design -- Periodicals; 620.004205
• DOI: 10.1108/RPJ-10-2019-0256
• Languages: English
• ISSNs: 1355-2546

Abstract

Abstract : Purpose: The paper reports an investigation into the mechanical behaviour of hybrid components produced by combining the capabilities of metal injection moulding (MIM) with the laser-based powder bed fusion (PBF) process to produce small series of hybrid components. The research investigates systematically the mechanical properties and the performance of the MIM/PBF interfaces in such hybrid components. Design/methodology/approach: The MIM process is employed to fabricate relatively lower cost preforms in higher quantities, whereas the PBF technology is deployed to build on them sections that can be personalised, customised or functionalised to meet specific technical requirements. Findings: The results are discussed, and conclusions are made about the mechanical performance of such hybrid components produced in batches and also about the production efficiency of the investigated hybrid manufacturing (HM) route. The obtained results show that the proposed HM route can produce hybrid MIM/PBF components with consistent mechanical properties and interface performance which comply with the American Society for Testing and Materials (ASTM) standards. Originality/value: The manufacturing of hybrid components, especially by combining the capabilities of additive manufacturing processes with cost-effective complementary technologies, is designed to be exploited by industry because they can offer flexibility and cost advantages in producing small series of customisable products. The findings of this research will contribute to further develop the state of the art in regards to the manufacturing and optimisation of hybrid components.