of finishing extremely hard and brittle materials using fine abra- sive wheels by dressing the grinding wheels during the grinding process. The ELID grinding. Nano finish grinding of brittle materials using electrolytic in-process dressing ( ELID) technique. M RAHMAN, A SENTHIL KUMAR, H S LIM and K FATIMA. finish quality, and acoustic emission monitoring of the ELID grinding process. The wheel wear mechanism in ELID grinding of sapphire is dominated by bond.
||20 September 2009
|PDF File Size:
|ePub File Size:
||Free* [*Free Regsitration Required]
Based on thermal analysis, a hot press forming process and a post thermal treatment were employed for fabricating the resin-bonded CBN wheel. The metalworking grindkng also benefits from AM Herlou Groep develops ergonomic PVC window profile handling tool Precision milling of a compression mould.
Marinescu and Anil Srivastava. Check Out Now Continue Browsing.
Related Content Customize your page view by dragging and repositioning the boxes below. Moreover, ELID grinding allows a work piece with good geometrical accuracy in combination with a highly smooth surface to be obtained, making a polishing stage redundant. Thin Solid Films, Vol. Shibboleth grincing an access management service that provides single sign-on protected resources. Some tools below are only available to our subscribers or users with an online account.
ELID grinding characteristics of large stamping die for Wolter mirror.
The figures below show two examples of ELID surface grinding. Fine finishing of almost all kinds of hard and brittle materials, ranging from hardened steels, BK7 glass, mono-crystalline silicon, silicon carbide, aluminum nitride, silicon nitride etc, has been successfully carried out, to provide high quality surfaces with low sub-surface damage. You might also like A new method for finishing 3D Near Net Shape components A white paper on precision components will shortly be available Abrasive water jet turning: Different variants of the process have also been reported, though the basic philosophy of operation is the same as basic ELID.
This phenomenon may be one of the main reasons that subsurface damage is reduced on ultrasonic grinding. A FE model for abrasives and the passivation film was established grindong calculate displacement of abrasives in the passivation film. Low surface roughness and extremely high precision thanks to ELID grinding.
High Speed Grinding of Advanced Ceramics: ELID grinding shows great promise in achieving a mirror surface finish at a relatively high efficiency. A smoother surface was obtained using a higher dressing current at the cost of a higher wheel wear rate. Finally, discussions on the different stages of evolution of the process have been put forward as a conclusion to the report.
Low surface roughness and extremely high precision thanks to ELID grinding | Sirris
According to the detailed micro-observation of ground surfaces, it can be concluded that the material removal mechanism of the main mineral components for natural granites are really similar to other brittle materials during ELID grinding process. Electrolysis takes place between grunding conductive anodic wheel and highly conductive cathode in presence of a special electrolyte.
Tagcloud additive manufacturing factories of the future patent cell software engineering precision plastics coatings smart products Industrie 4.
Learn about subscription and purchase options. Key Engineering Materials Volume GrindingAcoustic emissionsSapphire. Citing articles are presented eliid examples only. The grinding force and abrasives displacement were iterated between MD simulation model and FE analysis model to obtain the displacement variation of the abrasives in the passivation film. However, the differences of material performances cause the granite grinsing to be larger critical grain depth of cut and more ductile during finely grinding.
The wheel wear mechanism in ELID grinding of sapphire was dominated by bond fracture because the bond strength is reduced by electrolysis. View the discussion thread. Customize your page view by dragging and repositioning the boxes below.
So cracks can not expand to material deep and shallow sub-surface cracks are left in workpiece sub-surface layer. The procedure furthermore allows grinding wheels with extremely fine granules to be used ca. The surface appearances during the grinding process with different mesh size metal bonded diamond wheels were examined to describe the formation of finely finished granite surfaces.