In-Process Electrical Dressing of Metal-Bonded Diamond Grinding Wheels
A new development of hybrid in-process electrical dressing of metal-bonded diamond grinding wheels is proposed in this paper. The electrical dressing method is used for overcoming the limitations of the conventional dressing methods available in relation to a super-abrasive wheel because of the hardness of its abrasive grains and the durability of its bonding material. The proposed hybrid in-process electrical dressing method consists of electro-discharge and electro-chemical processes and is implemented with twin copper electrodes and alternating power supplies. The results show that with properly maintained process conditions, a better surface finish is produced by the proposed method compared with traditional rotating SiC wheel dressing.
Review on Dressing Operation of Grinding Wheel
Grinding is an operation applied in almost every type of manufacturing process. This paper presents a summary of numbers of researches done by the different authors on the dressing and grinding operations. We are moving towards more comfortable and time saving method, for this reason many engineers are contributing their innovation for several things to make Simple, Easy Handling and Save Time Consumption for Production. Grinding technologies represent a critical step in the production of high added-value and high precision parts for strategic industrial sectors such as aerospace, automotive, biomedical, and wind generation. Dressing is that the technique used to resharpering of Grinding Wheel which result into an increment in Productivity & optimization of time with a High surface finish of a workpiece by Grinding. Grinding could be a machining process that utilize abrasives for the removal of fabric. The sharp edges of abrasive grains act as cutting implement that take away material within the form of powder or fine chips.This method provides a fast review on varied grinding dressing technique and parameters that influences the dressing operation. Grinding process is very quick process but simultaneously the dressing also important for fine grinding that's why some different processes are used for Dressing of grinding wheel. like Electrolytic In-Process Dressing (ELID), Diamond Tool Dressing (DTD), Laser Tool Dressing (LTD),
A model for the topography of diamond grinding wheels
Abstract A mathematical model is presented to characterize the topography of a freshly dressed resin/metal bonded diamond grinding wheel. The planar grain density, the area due to exposed abrasives and the abrasive protrusion height distribution of a wheel are estimated with regard to the grit size and volumetric concentration of the abrasives. The model indicates that the protrusion height is approximately uniformly distributed and the percentage of area due to exposed abrasives on the wheel surface is independent of the abrasive grit size for a particular concentration.