The effect of sintering parameters on diffusion bonding of 316L stainless steel in inserted metal injection molding

Safarian, Asghar; Subaşı, Mehmet; Karataş, Çetin

doi:10.1007/s00170-016-9256-2

Cited by 28 publications

(18 citation statements)

References 27 publications

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“…The alternative coolants such as cool air [ 63 ] or oil [ 64 ] can also be used in the experiment for investigating the difference in the cooling performance of an injection mold with optimum CCCs. Lastly, the molds or dies with CCCs fabricated by the proposed method can also be employed in metal injection molding [ 65 ], rotational molding [ 66 ], centrifugal molding, thermoforming [ 67 ], transfer molding [ 68 ], hot stamping [ 69 ], plastic injection molding [ 70 , 71 ], microinjection molding [ 72 , 73 ], or blow molding [ 74 ]. These issues are currently being investigated and the results will be presented in a later study.…”

Section: Resultsmentioning

confidence: 99%

Rapid Development of an Injection Mold with High Cooling Performance Using Molding Simulation and Rapid Tooling Technology

et al. 2021

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Rapid tooling technology (RTT) provides an alternative approach to quickly provide wax injection molds for the required products since it can reduce the time to market compared with conventional machining approaches. Removing conformal cooling channels (CCCs) is the key technology for manufacturing injection mold fabricated by rapid tooling technology. In this study, three different kinds of materials were used to fabricate CCCs embedded in the injection mold. This work explores a technology for rapid development of injection mold with high cooling performance. It was found that wax is the most suitable material for making CCCs. An innovative method for fabricating a large intermediary mold with both high load and supporting capacities for manufacturing a large rapid tooling using polyurethane foam was demonstrated. A trend equation for predicting the usage amount of polyurethane foam was proposed. The production cost savings of about 50% can be obtained. An optimum conformal cooling channel design obtained by simulation is proposed. Three injection molds with different cooling channels for injection molding were fabricated by RTT. Reductions in the cooling time by about 89% was obtained. The variation of the results between the experiment and the simulation was investigated and analyzed.

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Section: Resultsmentioning

confidence: 99%

Rapid Development of an Injection Mold with High Cooling Performance Using Molding Simulation and Rapid Tooling Technology

et al. 2021

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“…According to the results described above, the ndings of this study are very practical and can provide a reference for the design of molds or dies with conformal cooling channel, especially for the fabrication of the injection molding tooling with conformal cooling channels using the technologies such as atom diffusion additive manufacturing (ADAM), electron beam melting (EBM) [33], SLM [34], selective laser sintering (SLS) [35], diffusion bonding (DB) [36], direct metal deposition (DMD) [37], or direct metal laser sintering (DMLS) [38] because the fabrication costs is costly. The fabricated molds or dies can be employed in metal injection molding [39], rotational molding [40], centrifugal molding, thermoforming [41], transfer molding [42], and hot stamping [43], plastic injection molding [44], or blow molding [45]. In addition, injection molding tooling with conformal cooling channels fabricated by DMLS, ADAM, EBM, SLM, SLS, DB, or DMD employs a hybrid machining process that results in the coolant leaking from the connection locations.…”

Section: Resultsmentioning

confidence: 99%

Enhancing the Structural Strength for Injection Molding Tooling With Conformal Cooling Channels Using ANSYS Software

Kuo

You

2021

Preprint

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Injection molding of wax patterns faces increasing demands for production rate. Proper thermal management of the injection molding tooling is capable of improving the production rate. Precise temperature control is a key to shorten the cooling time using the conformal cooling channels which are conformal to the molding cavity. However, the service life of the injection molding tooling with cooling channels will reduce significantly because the structural strength will reduce obviously. In this study, the feasibility of applying the increase in the mold thickness to maintain the structural strength of the injection molding tooling with cooling channels was verified through simulation and experiments conducted. It was found that the average variation between the results of simulation and the experiment is about 24.9%. The approximately amount of the increase in the thickness required for different diameters of cooling channels can be determined according to the trend equation of y=1.3429x-2.3429. The results can provide a reference for the conformal cooling channel design.

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“…In this study, the injection mold was employed in wax injection molding for manufacturing precision wax patterns. Note that the proposed method can also be employed in plastic injection molds [48-50,], blow molding dies [51], metal injection molding molds [52], powder metallurgy molds [53], die casting dies [54], hot extrusion dies [55,56], injectioncompression molding molds [57], rotational molding dies, thermoforming molds, transfer molding dies, or hot stamping dies [58]. Finally, it is worth noting that two further studies are required for enhancing the surface quality of a precision mold machined and dimensional accuracy of a precision mold machined.…”

Section: Resultsmentioning

confidence: 99%

A Cost-Effective Method for Rapid Manufacturing a Precision Mold With Microstructures Using Hybrid Manufacturing Technologies

Kuo¹,

Lin²,

Luo³

2021

Preprint

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Injection molding is a cost-effective to manufacture molded products by injection molding machine. A precision part with microstructures can be fabricated effectively through a precision mold. In this study, a cost-effective method for rapid manufacturing a precision component and a precision injection mold with microstructures by integrating additive manufacturing, rapid tooling, and computer numerical control milling. It was found that of the dimensional accuracy of a precision component in the length, width, and height can be controlled at approximately 30 µm. Injection molding was performed using an injection mold with microstructures with a microstructure of 950 µm and the dimensional accuracy of a molded part in the length, width, and microstructure can be controlled at approximately 60 µm, 50 µm, and 10 µm, respectively. The remarkable findings of this study can be used for the fabrication of molds or dies efficiently and economically for trial production in the mold industry since the quality of the precision component and the precision mold can meet the standards of the general industry.

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The effect of sintering parameters on diffusion bonding of 316L stainless steel in inserted metal injection molding

Cited by 28 publications

References 27 publications

Rapid Development of an Injection Mold with High Cooling Performance Using Molding Simulation and Rapid Tooling Technology

Rapid Development of an Injection Mold with High Cooling Performance Using Molding Simulation and Rapid Tooling Technology

Enhancing the Structural Strength for Injection Molding Tooling With Conformal Cooling Channels Using ANSYS Software

A Cost-Effective Method for Rapid Manufacturing a Precision Mold With Microstructures Using Hybrid Manufacturing Technologies

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The effect of sintering parameters on diffusion bonding of 316L stainless steel in inserted metal injection molding

Cited by 28 publications

References 27 publications

Rapid Development of an Injection Mold with High Cooling Performance Using Molding Simulation and Rapid Tooling Technology

Rapid Development of an Injection Mold with High Cooling Performance Using Molding Simulation and Rapid Tooling Technology

Enhancing the Structural Strength for Injection Molding Tooling With Conformal Cooling Channels Using ANSYS&nbsp;Software

A Cost-Effective Method for Rapid Manufacturing a Precision Mold With Microstructures Using Hybrid Manufacturing Technologies

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Product

Resources

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Enhancing the Structural Strength for Injection Molding Tooling With Conformal Cooling Channels Using ANSYS Software