Complete Recycling of Waste Diamond Cutting Tools by an Electrochemical Method

Date

2018-03-15

Author

Altunbaşak, Tansu
Kul, Mehmet
Karakaya, İshak

Metadata

Show full item record

Item Usage Stats

145
views

0
downloads

Diamond and other valuable particle embedded composite cutting tools can be produced by different techniques according to its area of utilization. Co, Ni, Ti and W metals are used as binder while Cu, Sn, brass and bronze used as filler in the manufacturing above mentioned cutting tools. About 20 % of composite cutting tools are not consumed when they are discarded. Current recycling processes contribute recovery of diamond and abrasive parts by filtration, after acid dissolution. Besides diamond, metallic constituents can be recovered by electrochemical dissolution and deposition of waste diamond cutting tools in relatively weaker acidic electrolytes. While hard particles sink to the bottom of electrolyte, metallic parts can be collected as powders at the cathode when power is applied under certain conditions. Temperature, current density, acid and CuSO<SUB>4</SUB> concentrations of electrolytes were the process parameters to optimize microstructure, density and surface area of metallic powders.

URI

http://www.programmaster.org/PM/PM.nsf/ApprovedAbstracts/89410F3FE958DBBF8525814F006972E5? OpenDocument
https://hdl.handle.net/11511/74991

Collections

Unclassified, Article

Suggestions

OpenMETU
Core

Complete Recycling of Waste Diamond Cutting Tools by an Electrochemical Method Altunbaşak, Tansu; Kul, Mehmet; Karakaya, İshak (2018-03-15) Diamond and other valuable particle embedded composite cutting tools can be produced by different techniques according to its area of utilization. Co, Ni, Ti and W metals are used as binder while Cu, Sn, brass and bronze used as filler in the manufacturing above mentioned cutting tools. About 20 % of composite cutting tools are not consumed when they are discarded. Current recycling processes contribute recovery of diamond and abrasive parts by filtration, after acid dissolution. Besides diamond, metallic c...
A Study on integral recycling of valuable particle embedded composite wastes Göynük, Tansu; Karakaya, İshak; Department of Metallurgical and Materials Engineering (2019) Recovery of the valuable particle embedded composite cutting tools was achieved by electrodissolution and deposition techniques. Diamond embedded composite wastes including both bronze matrix and cobalt-copper-tin matrix were used to recycle comprehensively and efficiently within the scope of this thesis. The parameters like current density, temperature and electrolyte composition were optimized to obtain both diamond and metal constituents as compact, dense powder with minimum specific surface area and ave...
Homogenization of ECAPed Al 2024 alloy through age-hardening KOTAN, G.; TAN, E.; Kalay, Yunus Eren; Gür, Cemil Hakan (2013-01-01) Mechanical properties of aluminum alloys can be improved by obtaining ultra-fine grained structures via severe plastic deformation methods such as equal channel angular pressing (ECAP). In practice, however, the final structure may not be as homogeneous as desired. Thus, elimination of the inhomogeneity of ECAPed samples is a challenging task. In the case of age-hardenable alloys, a combination of ECAP and aging might provide new means of obtaining microstructural homogeneity. In this study, the effect of p...
Computational elastodynamics of functionally graded thick-walled cylinders and annular coatings subjected to pressure shocks Abeidi, Abdelrahim; Dağ, Serkan (2022-12-01) A computational technique based on domain-boundary element method (D-BEM) is developed for elastodynamic analysis of functionally graded thick-walled cylinders and annular coatings subjected to pressure shock type of loadings. The formulation is built on the wave equation, which is derived in accordance with plane elastody-namics. Weighted residual statement for the wave equation is expressed by using the static fundamental solution as the weight function. Applying integration by parts and incorporating the...
Flexible supercapacitor electrodes with vertically aligned carbon nanotubes grown on aluminum foils Dogru, Itir Bakis; Durukan, Mete Batuhan; Turel, Onur; Ünalan, Hüsnü Emrah (2016-06-01) In this work, vertically aligned carbon nanotubes (VACNTs) grown on aluminum foils were used as flexible supercapacitor electrodes. Aluminum foils were used as readily available, cheap and conductive substrates, and VACNTs were grown directly on these foils through chemical vapor deposition (CVD) method. Solution based ultrasonic spray pyrolysis (USP) method was used for the deposition of the CNT catalyst. Direct growth of VACNTs on aluminum foils ruled out both the internal resistance of the supercapacitor...

Citation Formats

T. Altunbaşak, M. Kul, and İ. Karakaya, “Complete Recycling of Waste Diamond Cutting Tools by an Electrochemical Method,” 2018, Accessed: 00, 2021. [Online]. Available: http://www.programmaster.org/PM/PM.nsf/ApprovedAbstracts/89410F3FE958DBBF8525814F006972E5? OpenDocument.