In the process of ultrasonic vibration cutting (UVC), acoustic performance parameters machining system change because systems heating up and loads. The changes will affect resonant frequency, impedance, power match system, stability amplitude UVC system. It is hard to monitor online. Based on analysis correlation mechanism between transducer temperature parameters, models resonance static capac...

Recent evolutions on forging process induce more complex shape on forging die. These evolutions, combined with High Speed Machining (HSM) process of forging die lead to important increase in time for machining preparation. In this context, an original approach for generating machining process based on machining knowledge is proposed in this paper. The core of this approach is to decompose a CAD...

We present two methods for process planning of 2.5D machined parts. The first method is based on feature recognition from a 3D model. We embedded the shape and the machining method of two generic classes of machining features in a set of OPS5 rules to form a machining feature recognizer. When successfully recognizing a machining feature, machining instructions, in terms of the tool entrance fac...

Compared with the conventional drilling, helical milling has obvious advantages in making holes of carbon fiber-reinforced plastic (CFRP). Nevertheless, rapid wear cutting edges readily causes some defects outlet holes, such as burrs and tearing. In order to improve hole-making quality CFRP, a comparative experimental study on ultrasonic-assisted bi-directional CFRP was carried out. The mechani...

The use of a minimum quantity of lubrication (MQL) with extremely low consumption of lubricant in machining processes has been reported as a technologically and environmentally feasible alternative to conventional flood cooling. In hot machining, the external heat source is applied during machining that will assist to increase machining performance. Many external heating techniques are availabl...

BK7 glass is widely used in various optical instruments as a common ceramic material. However, there are still several difficulties the polishing process due to its material properties. Ultrasonic vibration–assisted (UVAP) for excellent removal few researches on model of UVAP tilted. Therefore, this paper investigates problem. A was established titled column polishing; The pressure distribution...

In order to improve efficiency of cutting process in production industry, development of new steel which has good machinablity is desired. The work material which has good surface roughness, easy breakable chip and small tool wear as the good machinablity is expected. And the free-machining steel was developed owning to adding elements which could make the machinablity better. Of all others, le...

Article history: Received: 27.6.2013. Received in revised form: 14.11.2013. Accepted: 19.11.2013. Aluminum based Metal Matrix Composites (AlMMC) have been found in different industrial applications due to their excellent properties compared to conventional materials. Machining of these composites is difficult due to their hard particle reinforcements. The wider usage of these composites is limi...

Correct selection of manufacturing condition is one of the most important aspects which should be considered in the majority of manufacturing processes,  particularly in the process related to advanced machining process like electrical discharge machining. In electrical discharge machining (EDM), dielectric fluid plays an important role since machining characteristics are greatly influenced by ...

Abstract Laser cladding is a new surface repair method that can improve the wear and corrosion resistance of substrate surfaces. However, layer typically exhibits rough surface, high hardness large residual tensile stress, thus requires further machining finishing. Ultrasonic rolling (U-rolling) highly efficient finishing strengthening process combines ultrasonic technology with traditional (T-...