Switchover to industrial additive manufacturing: dynamic decision-making for problematic spare parts

Akmal, Jan Sher; Salmi, Mika; Björkstrand, Roy; Partanen, Jouni; Holmström, Jan

doi:10.1108/ijopm-01-2022-0054

Cited by 23 publications

(12 citation statements)

References 86 publications

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“…The role of generative design, which has been identified as facilitating the expansive use of direct digital manufacturing Bendoly et al (2021), would be interesting to explore further. Encapsulation of design and manufacturing knowledge in digital counterparts is presented in the literature as the basis for the collaborative provision and use of manufacturing as an object‐interactive service (e.g., Hedenstierna et al, 2019), as well as for opportunistic sourcing of individual components from service providers (e.g., Akmal et al, 2022). This is in stark contrast to the findings of Friedrich et al (2022), that manufacturers are reluctant to share designs of additively manufactured parts due to IPR concerns 6 .…”

Section: Discussionmentioning

confidence: 99%

Hybrid digital manufacturing: Capturing the value of digitalization

Stark¹,

Ferm²,

Hanson

et al. 2022

J of Ops Management

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A chasm is growing between the advanced technologies available for improving manufacturing operations and those effectively used in practice. The vision of Industry 4.0 is to mobilize industry to seek out these possibilities for improvement and to close the gap between opportunity and reality. However, when compared with more established improvement opportunities such as lean manufacturing, the digitalization of manufacturing lacks in both paradigmatic examples and an understanding of how to achieve the benefits. This lack is a complication of concern: Without an appropriate operations strategy to capture the value of digitalization, manufacturing companies will be unable to focus on technological investments and operational changes. To address this concern, operations management academics must develop new theory through active engagement in the practice of digitalization in manufacturing. This research presents a paradigmatic example, based on engaged scholarship, focused on effectively combining novel object-interactive and conventional manufacturing syntax for benefiting from digitalization in internal operations and the wider supply chain. The contribution to literature is a novel operations strategy-hybrid digital manufacturing-for capturing the value of Industry 4.0 technologies.

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Section: Discussionmentioning

confidence: 99%

Hybrid digital manufacturing: Capturing the value of digitalization

Stark¹,

Ferm²,

Hanson

et al. 2022

J of Ops Management

Self Cite

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“…This hybrid analytical process has been utilized in multiple OSCM studies as it establishes the coding structure from the outset of the analysis and enables further data-driven coding during the analysis (e.g. Akmal et al. , 2022).…”

Section: Methodsmentioning

confidence: 99%

Social sustainability and human rights in global supply chains

Cao

Lawson

Pil

2023

IJOPM

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PurposeFirms are accountable for upholding worker rights and well-being in their supply base. The authors unpack the evolution in lead firm thinking and practice about how to assure labor conditions at suppliers.Design/methodology/approachThe authors conducted interviews with the social sustainability leaders at 22 global corporations (“lead firms”) and their sustainability consultants to understand how they think about, and enact efforts, to support labor in their supply base. The authors complement this with an analysis of stated practice in proprietary supplier codes of conduct for the manufacturing and extractive-related firms in the S&P 500 and FTSE 350.FindingsThe authors’ interviews suggest firms follow two distinct and cumulative approaches: a transactional-based approach leveraging collective buyer power to enforce supplier compliance and a relational-based approach focused on mutual capacity building between lead (buyer) firms and their suppliers. The authors also see the emergence, in a small subset of firms, of a bottom-up approach that recognizes supplier workers as rights-holders and empowers them to understand and claim their rights.Originality/valueThe authors identify systematic convergence in supplier codes of conduct. While the transactional and relational approaches are well documented in the supply chain social sustainability literature, the rights-holder approach is not. Its emergence presents an important complement to the other approaches and enables a broader recognition of human rights, and the duty of Western firms to assure those rights.

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“…The impact of additive manufacturing (AM) in today's world is undoubtedly all-time high ranging from low-cost and educational applications to high-performance complex engineering components. AM is emerging into a general-purpose technology enabling industry 4.0 and offering a plethora of applications [1][2][3][4]. Out of the seven ISO/ASTM registered technologies, powder bed fusion (PBF) process is widely used for manufacturing metal AM components using laser as thermal input and metal powder as raw material [4,5].…”

Section: Introductionmentioning

confidence: 99%

Prediction and validation of melt pool dimensions and geometric distortions of additively manufactured AlSi10Mg

Ullah

Lian

Akmal

et al. 2023

Int J Adv Manuf Technol

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A finite element–based thermomechanical modeling approach is developed in this study to provide a prediction of the mesoscale melt pool behavior and part-scale properties for AlSi10Mg alloy. On the mesoscale, the widely adopted Goldak heat source model is used to predict melt pool formed by laser during powder bed fusion process. This requires the determination of certain parameters as they control temperature distribution and, hence, melt pool boundaries. A systematic parametric approach is proposed to determine parameters, i.e., absorption coefficient and transient temperature evolution. The simulation results are compared in terms of morphology of melt pool with the literature results. Considering the part-scale domain, there is increasing demand for predicting geometric distortions and analyzing underlying residual stresses, which are highly influenced by the mesh size and initial temperature setup. This study aims to propose a strategy for evaluating the correlation between the mesh size and the initial temperature to provide correct residual stresses when increasing the scale of the model for efficiency. The outcomes revealed that the predicted melt pool error produced by optimal Goldak function parameters is between 5 and 12%. On the part-scale, the finite element model is less sensitive to mesh size for distortion prediction, and layer-lumping can be used to increase the speed of simulation. The effect of large time increments and layer lumping can be compensated by appropriate initial temperature value for AlSi10Mg. The study aids practitioners and researchers to establish and validate design for additive manufacturing within the scope of desired part quality metrics.

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Switchover to industrial additive manufacturing: dynamic decision-making for problematic spare parts

Cited by 23 publications

References 86 publications

Hybrid digital manufacturing: Capturing the value of digitalization

Hybrid digital manufacturing: Capturing the value of digitalization

Social sustainability and human rights in global supply chains

Prediction and validation of melt pool dimensions and geometric distortions of additively manufactured AlSi10Mg

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