Fabrication of WC-Co cutting tool by powder injection molding

Lin, Dongguo; Xu, Jifu; Shan, Zhongde; Chung, Sung Taek; Park, Seong Jin

doi:10.1007/s12541-015-0189-8

Cited by 16 publications

(3 citation statements)

References 13 publications

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“…The component produced by injection molding has a small shrinkage, but a high susceptibility to form undesirable η phase (Co 3 W 3 C, Co 6 W 6 C, etc.) [18][19][20][21]. Extrusion and powder metallurgy can achieve low porosity, but these processes can only produce components with limited geometrical complexity [22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Additive manufacturing of WC-Co hardmetals: a review

Yang

Zhang

Wang

et al. 2020

Int J Adv Manuf Technol

107

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WC-Co hardmetals are widely used in wear-resistant parts, cutting tools, molds, and mining parts, owing to the combination of high hardness and high toughness. WC-Co hardmetal parts are usually produced by casting and powder metallurgy, which cannot manufacture parts with complex geometries and often require post-processing such as machining. Additive manufacturing (AM) technologies are able to fabricate parts with high geometric complexity and reduce post-processing. Therefore, additive manufacturing of WC-Co hardmetals has been widely studied in recent years. In this article, the current status of additive manufacturing of WC-Co hardmetals is reviewed. The advantages and disadvantages of different AM processes used for producing WC-Co parts, including selective laser melting (SLM), selective electron beam melting (SEBM), binder jet additive manufacturing (BJAM), 3D gel-printing (3DGP), and fused filament fabrication (FFF) are discussed. The studies on microstructures, defects, and mechanical properties of WC-Co parts manufactured by different AM processes are reviewed. Finally, the remaining challenges in additive manufacturing of WC-Co hardmetals are pointed out and suggestions on future research are discussed.

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Section: Introductionmentioning

confidence: 99%

Additive manufacturing of WC-Co hardmetals: a review

Yang

Zhang

Wang

et al. 2020

Int J Adv Manuf Technol

107

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“…The outcomes showed that under the same conditions, graphene sheets performed altogether better compared to CNTs to improve thermo-mechanical. Dongguo et al [30] manufactured a cutting tool by powder injection molding (PIM) technology using 90WC-10Co alloy. The cutting tool obtained after this technology achieved a density of 95% of theoretical density and dimension accuracy achieved was 98%.…”

Section: Previous Work On Fabrication Of Tungsten Carbide-cobalt-base...mentioning

confidence: 99%

Graphene Composite Cutting Tool for Conventional Machining

Saini¹,

Sidhu²,

Gill³

2023

Graphene - A Wonder Material for Scientists and Engineers

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Cutting is an important process in the manufacturing industry and cutting tool is an important element in machining. It is essential to use good quality cutting tools in arrange to maintain the quality of a product. To retain the performance of cutting tool, various techniques have been utilized like cutting fluid, cutting under MQL, coating, multilayer coating, cryoprocessing, different types of surface texturing, different types of solid lubricants, etc. All these processes have a great impact to enhance the mechanical, thermal, and tribological properties in case of conventional machining process. Nowadays composite engineered materials are very successful in metal cutting industry due to its wear-related application and excellent mechanical and thermal properties. A very few research has been carried out on graphene mixed composite tool material, which has very high demand in manufacturing industries, due to its application as a cutting tool material for machining of Al, copper, or high strength carbon steel. In the end, challenges in the processing of tungsten carbide graphene mixed self-lubricated tool have been identified from the literature. In parallel, the latest improvements to enhance the properties of tungsten carbide-cobalt cutting tool with graphene mixed are reviewed.

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“…Nowadays the market demands new and highly customized products, forcing the producers to continuously update the moulds in their manufacturing processes. Applications of PIM include dental implants [ 1 , 2 ], artificial joints [ 3 , 4 ], medical hand tools for special surgical operations [ 5 , 6 ] and steel cutting tools [ 7 , 8 ]. PIM is a profitable process for mass production, but in the case of prototyping or small batch production, the cost of the metal tools has an influential weight on the overall cost of the final parts [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Analysing Powder Injection Moulding of a Helix Geometry Using Soft Tooling

et al. 2021

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Freeform injection moulding is a novel technology for powder injection moulding where a sacrificial 3D printed mould (i.e., a soft tooling) is used as an insert in the injection process. The use of 3D printed moulds enable a higher geometrical design flexibility as compared to the conventional injection moulding process. However, there is still very limited knowledge on how the sacrificial soft tooling material and powder suspension handles the increased geometrical complexity during the process. In this study, a stainless steel powder suspension is injected into a geometrically challenging sacrificial mould (viz. a helix structure) that is produced by vat photopolymerization additive manufacturing. Computed tomography is used to quantify the geometrical precision of the mould both before and after injection. In addition, a new numerical model that considers the suspension feedstock is developed to investigate the powder injection moulding process. The numerical results are found to be in qualitative good agreement with the experimental findings in terms of pinpointing critical areas of the structure, thereby highlighting a new pathway for evaluating sacrificial inserts for powder injection moulding with a high geometrical complexity.

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Fabrication of WC-Co cutting tool by powder injection molding

Cited by 16 publications

References 13 publications

Additive manufacturing of WC-Co hardmetals: a review

Additive manufacturing of WC-Co hardmetals: a review

Graphene Composite Cutting Tool for Conventional Machining

Analysing Powder Injection Moulding of a Helix Geometry Using Soft Tooling

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