Qualification of the low-pressure cold gas spraying for the additive manufacturing of copper-nickel-diamond grinding wheels

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dc.contributor.authorTillmann, Wolfgang
dc.contributor.authorZajaczkowski, Jonas
dc.contributor.authorBaumann, Ingor
dc.contributor.authorKipp, Monika
dc.contributor.authorBiermann, Dirk
dc.date.accessioned2022-06-13T13:27:26Z
dc.date.available2022-06-13T13:27:26Z
dc.date.issued2021-12-05
dc.description.abstractGrinding wheels are usually manufactured by powder metallurgical processes, i.e., by molding and sintering. Since this requires the production of special molds and the sintering is typically carried out in a continuous furnace, this process is time-consuming and cost-intensive. Therefore, it is only worthwhile for medium and large batches. Another influencing factor of the powder metallurgical process route is the high thermal load during the sintering process. Due to their high thermal sensitivity, superabrasives such as diamond or cubic boron nitride are very difficult to process in this way. In this study, a novel and innovative approach is presented, in which superabrasive grinding wheels are manufactured by thermal spraying. For this purpose, flat samples as well as grinding wheel bodies were coated by low-pressure (LP) cold gas spraying with a blend of a commercial Cu-Al2O3 cold gas spraying powder and nickel-coated diamonds. The coatings were examined metallographically in terms of their composition. A well-embedded superabrasive content of 12 % was achieved. After the spraying process, the grinding wheels were conditioned and tested for the grinding application of cemented carbides and the topographies of both the grinding wheel and the cemented carbide were evaluated. Surface qualities of the ground surface that are comparable to those of other finishing processes were reached. This novel process route offers great flexibility in the combination of binder and hard material as well as a cost-effective single-part and small-batch production.en
dc.identifier.urihttp://hdl.handle.net/2003/40950
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-22800
dc.language.isoende
dc.relation.ispartofseriesJournal of thermal spray technology;Bd 31. 2022, H. 1/2, S. 206-216
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAdditive manufacturingen
dc.subjectCold sprayingen
dc.subjectDiamond grinding wheelen
dc.subjectGrindingen
dc.subjectLow pressure cold sprayingen
dc.subject.ddc620
dc.subject.ddc670
dc.subject.rswkRapid Prototyping <Fertigung>de
dc.subject.rswkKaltspritzende
dc.subject.rswkDiamantschleifscheibede
dc.subject.rswkSchleifende
dc.subject.rswkThermisches Spritzende
dc.subject.rswkNiederdruckde
dc.titleQualification of the low-pressure cold gas spraying for the additive manufacturing of copper-nickel-diamond grinding wheelsen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationJournal of thermal spray technology. Bd 31. 2022, H. 1/2, S. 206-216de
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1007/s11666-021-01291-yde

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