Growing Near Net Shape Components from Renewable Materials

Löwer, Manuel; Beger, Anna-Lena; Raza, Iliyas; Feldhusen, Jörg; Wormit, Alexandra; Prell, Jürgen; Usadel, Björn; Seiler, Thomas‐Benjamin; Kämpfer, Christoph; Hollert, Henner; Trautz, Martin

doi:10.1016/j.procir.2015.02.206

Cited by 2 publications

(6 citation statements)

References 12 publications

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“…7,16,27 The majority of the papers analyze process and product variable combinations, 16,32,66 but only one considers the combination of process, product and material. 31 Two of them are taking in consideration only process variation. 7,27 Main application of work in the class is the forging process, 7,16,27,66 although two articles include casting 31 and forming 32 in their frameworks.…”

Section: Discussionmentioning

confidence: 99%

“…31 Two of them are taking in consideration only process variation. 7,27 Main application of work in the class is the forging process, 7,16,27,66 although two articles include casting 31 and forming 32 in their frameworks. Resource saving is the main motivation (i.e.…”

Section: Discussionmentioning

confidence: 99%

“…Resource saving is the main motivation (i.e. raw material usage reduction 7,16,31 ), because of its high impact on forging cost. DFM methodologies 27,31 and reviews 7,32 have been used for constructing the frameworks, although the following report different approaches: in one Ishikawa diagram for cold forging 66 is constructed through a case study, on the other hand, the other article analytical approach uses genetic algorithms 16 for developing a preform design methodology.…”

Section: Discussionmentioning

confidence: 99%

“…Final component needs to be post-machined in order to obtain curve surfaces. Lo¨wer et al 31 review and deploy strategy for substituting conventional material (metal and plastic) and process. They identify and assess the technical, ecological and economic feasibility of this approach and use a systematic approach for matching technical requirements with biological characteristics.…”

Section: Dfm Methodologiesmentioning

confidence: 99%

“…17 The only case study reports an economic comparison between flow forming and friction welding/machining. 83 Applied framework ''Applied framework'' papers introduce general models 7,31,32 or adaptive procedures 16,27,66 for determining manufacturing variables (process, product design, material) in order to obtain resources saving, 7,16,31,32 quality enhancing 66 or process design optimization (i.e. process parameters selection).…”

Section: Differential Analysismentioning

confidence: 99%

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Near net shape manufacturing of metal: A review of approaches and their evolutions

Marini

Cunningham

Corney

2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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In the last thirty years the concept of manufacturability has been applied to many different processes in numerous industries. This has resulted in the emergence of several different "Design for Manufacturing" methodologies which have in common the aim of reducing productions costs through the application of general manufacturing rules. Near net shape technologies have expanded these concepts, targeting mainly primary shaping process, such as casting or forging. The desired outcomes of manufacturability analysis for near-net-shape (NNS) processes are cost and lead/time reduction through minimization of process steps (in particular cutting and finishing operations) and raw material saving. Product quality improvement, variability reduction and component design functionality enhancement are also achievable through NNS optimization. Process parameters, product design and material selection are the changing variables in a manufacturing chain that interact in complex, non-linear ways. Consequently modeling and simulation play important roles in the investigation of alternative approaches. However defining the manufacturing capability of different processes is also a "moving target" because the various NNS technologies are constantly improving and evolving so there is challenge in accurately reflecting their requirements and capabilities. In the last decade, for example, CAD, CNC technologies and innovation in materials have impacted enormously on the development of NNS technologies. This paper reviews the different methods reported for NNS manufacturability assessment and examines how they can make an impact on cost, quality and process variability in the context of a specific production volume. The discussion identifies a lack of structured approaches, poor connection with process optimization methodologies and a lack of empirical models as gaps in the reported approaches.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Dfm Methodologiesmentioning

confidence: 99%

Section: Differential Analysismentioning

confidence: 99%

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Near net shape manufacturing of metal: A review of approaches and their evolutions

Marini

Cunningham

Corney

2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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Precision Mold of Prototype Titanium Orthopedic Implant using Metal Injection Molding Approach

Wiranegara

Fauzi

Virdhian

2020

JRM

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MIDC’s researchers in fulfilling Industry Development Programme have taken a step to develop technology in the design application of orthopedic implants to help suppress the rate of imported medical devices in Indonesia. This research objective was to make a prototype plate for a jawbone connector that meets the geometric specifications with the metal injection molding approach. The jawbone connector plate has a very small size of about 2 mm x 20 mm x 0.5 mm that needs precision mold with certain geometric specifications. MIM approach was used, from the literature reviews that show MIM is the appropriate process for manufacturing implants. The phases of MIM were done according to the standard reference which is making raw materials or feedstock, gatting system design, flow simulation, precision mold producing, mold testing, injection process, debinding, sintering, and mechanical product testing. The results of this study were precision molds with several variants and were test using plastic polypropylene to see the performance of the mold. The researchers then produce the jawbone connector implant using feedstock material. The test result conducted in MIDC successfully shows that the mold can produce shapes that match the required geometry.

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Growing Near Net Shape Components from Renewable Materials

Cited by 2 publications

References 12 publications

Near net shape manufacturing of metal: A review of approaches and their evolutions

Near net shape manufacturing of metal: A review of approaches and their evolutions

Precision Mold of Prototype Titanium Orthopedic Implant using Metal Injection Molding Approach

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