What is specific cutting energy?

[7], specific cutting energy is the energy consumed to remove a unit volume of material, which is calculated as the ratio of cutting energy E to material removal volume V . In this research, Fig. 3 shows the procedure involved in modeling of the specific cutting energy in whirling milling process.

Why specific energy is high in grinding?

Such high specific energy required in grinding can be attributed to the irregular and random geometry of the abrasive grits, which induce a lot of rubbing and ploughing actions along with the chip formation by shearing process.

Why is specific energy requirement higher in grinding than in conventional machining?

The Material removal rate for grinding is much lesser than that achieved in machining. Rubbing and Ploughing also consumes energy without removing material. Hence, the specific energy requirement of grinding is much higher than that of conventional machining.

How do you find specific cutting energy?

Energy (or work) is force Fc x distance, L, over which the force acts. The volume of material removed is V = h w L, so the specific cutting energy can be written as: Such calculations are required to determine the size of the drive motor. 2.5.

What is specific cutting energy in metal cutting?

Specific energy in metal cutting, defined as the energy expended in removing a unit volume of workpiece material, is formulated and determined using a previously developed closed form mechanistic force model for milling operations.

What is the cutting ratio?

Chip thickness ratio or cuttings ratio is defined as the ratio of chip thickness before cutting to thickness after cutting. It depends on the chip thickness ratio. Type of material to be worked. The geometry of the cutting tool. Types of cutting fluids.

What is specific energy in grinding?

Specific grinding energy is the energy consumed in removing unit volume of metal materials, which can be expressed as follows:(1) E e = P V = F t ( ν s ± ν w ) ν w a p b where P is the grinding power (W), V is the workpiece volume (mm3/s), Ft is the tangential grinding force (N), “+” indicates upgrinding, and “−” …

Which process in the machining consumes the maximum specific energy among the conventional machining processes and validate your preference?

The correct option is D Grinding (c) Hydroelectric power plant.

What is the unit of specific energy?

The SI unit for specific energy is the joule per kilogram.

Why do you need to know the specific cutting force for a workpiece material?

Specific cutting force is a key parameter that is important for estimating cutting forces that occur during machining. This information is important for various applications. The most important application is estimation of the stability limit valid for the specific configuration of the machine tool, tool and workpiece.

What is shear angle?

The shear angle is the angle made by the shear plane with the work surface. When the shearing angle is high, the shearing plane becomes smaller which means the lower shear force, cutting force, power and temperature.