Category: Unconventional Machining Processes

Following are the parameters which determine the material removal rate and shown graphically below. We can observe the effect of process parameters on material removal rate in Figure 23.4. With increasing frequency of ultrasonic vibration, material removal rate increases. The material removal rate increases with increasing amplitude and the rate of increase in material removal rate increases… Continue reading Process Parameters

The mechanism of material removal in USM is brittle fracture of the layer work material. A tool of ductile and tough material is used for vibration with high frequency; and a continuous flow of abrasive slurry is used between the vibrating tool and work surface. The impact of vibrating tool on abrasive slurry fractures the… Continue reading ULTRASONIC MACHINING (USM)

AJM is used for machining, cleaning, etching, marking, deburring for brittle materials like glass, ceramics, refractories, germanium, silicon, quartz, mica, etc. Following are the frequent applications of AJM.

The variation in material removal rate with different parameters is shown graphically in Figure 23.2. In Figure 23.2 (a), the material removal rate increases with increase in mass flow rate, and after the certain limit again material removal rate decreases with increase in material removal rate. In Figure 23.2 (b), with increase in the velocity of abrasive particles… Continue reading Process Parameters

In this process, material removal takes place due to tiny brittle fracture of metallic layer with high velocity impact of abrasive particles. Therefore, this method of machining is more suitable for brittle materials. A high velocity jet of dry air, CO2 or nitrogen gas containing abrasive particles strikes the workpiece at the point where cutting or… Continue reading Principle of Operation

Some important unconventional machining processes discussed in this text are listed as follows: