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debinding

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006021
EISBN: 978-1-62708-175-7
... characteristics to be considered in the processing steps: venting, channel diameters, binder segregation, binder degradation, feedstock supply, temperature control, demolding, debinding, and sintering. Finally, the article provides information on powder injection molding mold-filling simulation and two-component...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006141
EISBN: 978-1-62708-175-7
... Moderate Good Prototyping ability Good Good Poor Ability to mold higher viscosity feedstock Poor or extremely difficult Moderate to good Excellent Ability to produce large components in low volumes economically Good Good Low Comparison of several debinding techniques and times...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006578
EISBN: 978-1-62708-290-7
... of a green part printed by the vat-photopolymerization-based ceramic printing process. (a) Ceramic part before and after postprocessing. (b) Scanning electron microscopy (SEM) images of brown part after the debinding process. HA/TCP, hydroxyapatite/tricalcium phosphate. (c) SEM images of final part after...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006053
EISBN: 978-1-62708-175-7
..., removing from the die, and debinding in one or more stages prior to sintering ( Ref 4 , 5 , 6 , 7 ). The additional steps of mixing and debinding, as well as a longer cycle time in molding add to the cost versus traditional die pressing. Molding cycle times vary from 15 to 100 s depending on the size...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006571
EISBN: 978-1-62708-290-7
... S.J. , German R.M. , and Atre S.V. , Review: Thermal Debinding Process in Particulate Materials Processing , Mater. Manuf. Process. , Vol 27 , 2012 , p 103 – 118 10.1080/10426914.2011.560233 39. Trunec M. and Cihlar J. , Removal of Thermoplastic Binders from...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006020
EISBN: 978-1-62708-175-7
... is in the 1 to 3 mm range (0.04 to 0.12 in.). Further, MIM works best when the wall thickness is uniform to avoid warpage in processing. Examples of parts with uniform thickness are scissor and knife blades. Thickness determines molding and debinding times, so thick sections are avoided if possible...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005531
EISBN: 978-1-62708-197-9
... operation that removes the remaining polymer binder and then sinters the powder particles together. Because the powders are not compacted together by this operation, after debinding the density of the remaining powder is on the order of 50 to 60% of full density. Powders used for PIM are generally much...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001105
EISBN: 978-1-62708-162-7
... Metallurgy , Vol 18 , Metal Powder Industries Federation , 1962 16. Kennedy S.W. , “Development in Combination Debinder/Pressure Consolidation Furnace,” Technical Note, Vacuum Industries Inc. , 1989 17. Bauer R.E. , Sinter-HIP Furnaces Sintering and Compacting in a Combined...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006557
EISBN: 978-1-62708-290-7
...-deposition-processed Ti-6Al-4V component Fig. 10 Schematic of pore structure in a metal compact and pore-removal steps. (1) Pore formation during debinding. (2) Binder diffusion into inner pore/binder interface followed by (3) binder evaporation and (4) gaseous escape to the surface. (5) Nitrogen...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006550
EISBN: 978-1-62708-290-7
... is then dried, allowing complete evaporation and obtaining full green strength. If needed, an ink that includes a binder may require a separate debinding heat treatment step. Finally, the part is sintered to obtain final density. These steps are shown in Fig. 1 . Gibson et al. ( Ref 8 ) identified several...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006583
EISBN: 978-1-62708-290-7
... printing in BJ3DP, the parts are further processed following conventional PM (debinding and liquid-phase sintering), resulting in microstructures and properties that are very similar to those of WC-Co produced conventionally ( Ref 19 , 20 ). Figure 6 shows the typical morphology of a WC-12%Co powder...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002486
EISBN: 978-1-62708-194-8
... holes. Because the pins leave permanent marks, they should be positioned on recessed features, surfaces that will be machined, or unused areas such as runners. Injection-molded parts are normally placed on flat plates or shelves for thermal debinding and sintering. A geometric feature that allows...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006561
EISBN: 978-1-62708-290-7
.... , “ Debinding and Sintering Solutions for Metals and Ceramics ,” Metal Powder Report 06/2001, Centorr Vacuum Industries , June 2001 , https://vacuum-furnaces.com/Websites/centorr/images/debindingand%20sinteringofmetalsceramics_062001.pdf 12. Herring D. , Applications-Equipment-Operation...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006135
EISBN: 978-1-62708-175-7
... air from entering the furnace Assist in the delubing (also called dewaxing or debinding ) portion of the sintering process Sweep reaction products toward the front of the furnace Reduce surface oxides on the powder particles in the part Control carbon on the surface and in the core...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.9781627082907
EISBN: 978-1-62708-290-7
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006124
EISBN: 978-1-62708-175-7
...: Debinding and Sintering , Int. J. Refract. Met. Hard Mater. , 2007 , Vol 25 ( No. 3 ), p 226 – 236 23. Dropman M.C. , Stover D. , Buchkremer H.P. , and German R.M. , Properties and Processing of Niobium Superalloys by Injection Molding , Advances in Powder Metallurgy...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
... rheological properties during injection molding as well as ease of binder removal after the molding step. Once the part is ejected from the mold, the binder material is removed using either solvent extraction or thermal processes (or both). After the debinding step the part is then sintered to complete...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001044
EISBN: 978-1-62708-161-0
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006022
EISBN: 978-1-62708-175-7
... that good tolerance can still be achieved. Metal powder loading in the feedstock used for MIM is approximately 60%. The binders and plasticizers added to make the mixture moldable must be removed prior to final sintering. This “debinding” step is the rate-controlling phase of the MIM process. Other...