Powder extrusion printing (PEP) is an additive manufacturing (AM) technology based on the combination of traditional metal injection molding and 3D printing, which has the advantages of wide range of printable materials and low cost. The PEP process of WC-13Co cemented carbide was studied, including the development and properties of thermoplastic printing materials, such as the dispersity, rheology and formability. The effects of debinding and sintering process on the microstructure and mechanical properties of the final parts were also investigated. The results show that the specialized binder for PEP of cemented carbides has been prepared successfully. EDS analysis demonstrates that the binder is uniformly dispersed in the green body. The binder can be effectively and totally removed from the green body by two-step debinding process. In combination with vacuum sintering at 1450 ℃ for 60 min, high performance of cemented carbide sample with the shrinkage rate of 17.8%, uniform distribution of WC grain size, and Vickers hardness of 1410HV30 is successfully fabricated. The result confirms that the PEP technology can be applied to prepare cemented carbide materials with high performance and controllable print size, which provides an effective technical route for additive manufacturing of cemented carbide.
CHEN Z , LI Z , LI J , et al. 3D printing of ceramics: a review[J]. Journal of the European Ceramic Society, 2019, 39 (4): 661- 687.
doi: 10.1016/j.jeurceramsoc.2018.11.013
2
MOSTAFAEI A , VECCHIS P R D , KATERINA A K , et al. Effect of binder saturation and drying time on microstructure and resulting properties of sinter-HIP binder-jet 3D-printed WC-Co composites[J]. Additive Manufacturing, 2021, 46, 102128.
doi: 10.1016/j.addma.2021.102128
3
NGO T D , KASHANI A , IMBALZANO G , et al. Additive manufacturing (3D printing): a review of materials, methods, applications and challenges[J]. Composites: Part B, 2018, 143, 172- 196.
doi: 10.1016/j.compositesb.2018.02.012
4
CRAMER C L , AGUIRRE T G , WIEBER N R , et al. Binder jet printed WC infiltrated with pre-made melt of WC and Co[J]. International Journal of Refractory Metals and Hard Materials, 2020, 87, 105137.
doi: 10.1016/j.ijrmhm.2019.105137
5
ARAMIAN A , RAZAVI S M J , SADEGHIAN Z , et al. A review of additive manufacturing of cermets[J]. Additive Manufacturing, 2020, 33, 101130.
doi: 10.1016/j.addma.2020.101130
6
YANG Y , ZHANG C , WANG D , et al. Additive manufacturing of WC-Co hardmetals: a review[J]. The International Journal of Advanced Manufacturing Technology, 2020, 108 (5/6): 1653- 1673.
7
GU D , SHI X , POPRAWE R , et al. Material-structure-performance integrated laser-metal additive manufacturing[J]. Science, 2021, 372 (6545): 1487.
doi: 10.1126/science.abg1487
8
FRAZIER W E . Metal additive manufacturing: a review[J]. Journal of Materials Engineering and Performance, 2014, 23 (6): 1917- 1928.
doi: 10.1007/s11665-014-0958-z
9
MOSTAFAEI A , ELLIOTT A M , BARNES J E , et al. Binder jet 3D printing—process parameters, materials, properties, modeling, and challenges[J]. Progress in Materials Science, 2021, 119, 100707.
10
ENNETI R K , PROUGH K C , WOLFE T A , et al. Sintering of WC-12%Co processed by binder jet 3D printing (BJ3DP) technology[J]. International Journal of Refractory Metals and Hard Materials, 2018, 71, 28- 35.
doi: 10.1016/j.ijrmhm.2017.10.023
11
SCHUBERT T , BRENINEK A , BERNTHALER T , et al. Investigations on additive manufacturing of WC-Co hard metals by laser beam melting[J]. Practical Metallography, 2017, 54 (9): 577- 595.
doi: 10.3139/147.110477
12
GONZALEZ-GUTIERREZ J , CANO S , SCHUSCHNIGG S , et al. Additive manufacturing of metallic and ceramic components by the material extrusion of highly-filled polymers: a review and future perspectives[J]. Materials, 2018, 11, 840.
doi: 10.3390/ma11050840
13
HU Z , LIU Y , QIAN Z , et al. The preparation of high-performance 96 W-2.7 Ni-1.3Fe alloy parts by powder extrusion 3D printing[J]. Materials Science and Engineering: A, 2021, 817, 141417.
doi: 10.1016/j.msea.2021.141417
ZHANG L , YANG X F , XU X W , et al. 3D Printed zirconia ceramics via fused deposit modeling and its mechanical properties[J]. Journal of Inorganic Materials, 2021, 36 (4): 436- 442.
15
SCHEITHAUER U , SCHWARZER E , RICHTER H , et al. Thermoplastic 3D printing-an additive manufacturing method for producing dense ceramics[J]. International Journal of Applied Ceramic Technology, 2015, 12 (1): 26- 31.
doi: 10.1111/ijac.12306
16
SCHEITHAUER U , BERGNER A , SCHWARZER E , et al. Studies on thermoplastic 3D printing of steel-zirconia composites[J]. Journal of Materials Research, 2014, 29 (17): 1931- 1940.
doi: 10.1557/jmr.2014.209
17
SCHEITHAUER U , POETSCHKE J , WEINGARTEN S , et al. Droplet-based additive manufacturing of hard metal components by thermoplastic 3D printing (T3DP)[J]. Journal of Ceramic Science and Technology, 2017, 8 (1): 155- 160.
LIU S , CAO X , ZHANG J Q , et al. Toward correct measurements of shear rheometry[J]. Acta Polymerica Sinca, 2021, 52 (4): 406- 422.
19
LENGAUER W , DURETEK I , FVRST M , et al. Fabrication and properties of extrusion-based 3D-printed hardmetal and cermet components[J]. International Journal of Refractory Metals and Hard Materials, 2019, 82, 141- 149.
doi: 10.1016/j.ijrmhm.2019.04.011
20
ANI M D S , MUCHTAR A , MUHAMAD N , et al. Binder removal via a two-stage debinding process for ceramic injection molding parts[J]. Ceramics International, 2014, 40 (2): 2819- 2824.
doi: 10.1016/j.ceramint.2013.10.032
21
LEE S , KIM D , KIM T , et al. Investigation on failure analysis and optimization of WC-Co hard metals after long-term use in a bottle cap forming machine[J]. International Journal of Refractory Metals and Hard Materials, 2018, 74, 99- 106.
doi: 10.1016/j.ijrmhm.2018.03.012
22
AIT-MANSOUR I , KRETZSCHMAR N , CHEKUROV S , et al. Design-dependent shrinkage compensation modeling and mechanical property targeting of metal FFF[J]. Progress in Additive Manufacturing, 2020, 5 (1): 51- 57.
doi: 10.1007/s40964-020-00124-8
23
FAN P , GUO J , ZAK FANG Z , et al. Effects of liquid-phase composition on its migration during liquid-phase sintering of cemented carbide[J]. Metallurgical and Materials Transactions A, 2009, 40 (8): 1995- 2006.
doi: 10.1007/s11661-009-9887-0