Grinding

Differences between EDG and ECG
NTM

NTM

Electric Discharge Grinding (EDG) is one thermal energy based non-traditional machining process that has apparent similarity in construction with the conventional grinding process. In EDG, a disc type metallic wheel is rotated about a fixed axis maintaining a small gap with the workpiece. The conductive wheel is given negative polarity, while the conductive workpiece is given positive polarity. The gap between wheel and workpiece is immersed with a suitable dielectric

Differences between EDM and EDG
NTM

NTM

Electric Discharge Machining (EDM) is one thermal energy based non-conventional machining process where material is removed by melting and vaporization with the assistance of high intensity spark. A form tool is made negative electrode, while the conductive workpiece is made positive electrode. The tool electrode is given appropriate shape in accordance with the feature to be produced. A small inter-electrode gap (IEG) is always maintained between two electrodes. This IEG

Differences between machining and grinding
Machining

Machining

Primary objective of any subtractive manufacturing process is to remove layer by layer material from a solid 3-D blank to achieve desired shape, size and finish. Achieving high dimensional accuracy, close tolerance and surface finish are usually not possible by conventional machining processes like turning, milling, shaping, planing, drilling, etc. Such processes are mainly applied for bulk removal (stock removal) of material with high material removal rate. In order to

Differences between coolant and lubricant
Machining

Machining

During conventional machining or metal cutting, excess material is gradually removed from the workpiece in the form of chips using a wedge shaped cutting tool. Primarily due to continuous rubbing between moving chips and rake surface of cutting tool, intense heat is generated at the cutting zone. In continuous machining, this cutting heat leads to increase in temperature at the cutting zone. Excessive cutting temperature has several detrimental effects on

Differences between dry machining and wet machining
Machining

Machining

Machining is one secondary manufacturing process that is performed to impart desired shape, size and surface finish by removing unwanted material from a solid 3-D blank. In conventional machining operations, the cutting tool compresses a thin layer of workpiece material to gradually shear it off in the form of chips. The primary shear zone exists surrounding the concentrated shear plane along which work material undergoes shearing to become chip. Initially

Difference Between Traditional Grinding and Electro-Discharge Grinding
NTM

NTM

Conventional machining processes (such as turning, milling, facing, drilling, etc.) cannot provide high surface finish and better dimensional accuracy. To improve the surface integrity of machined features, sometimes abrasive finishing is carried out. There exist several abrasive finishing processes like grinding, honing, abrasive flow finishing, magneto-abrasive finishing, etc. All these processes utilize grain abrasives either in the form of a bonded device or in the form of loose abrasive slurry.