Contour-parallel offset (CPO) machining uses successive offsets of the boundary curves of the machining region as the tool-path-elements (TPEs). For the efficiency of the CPO machining, it is very important to minimize the number of tool-retractions, which cause additional tool movements and do not contribute to the actual cutting. Presented in the paper is a CPO tool-path linking algorithm, wh...

The possibility of using face milling to restore the tread surface railway wheel pairs is studied. On basis simulation modeling, a conclusion made about prospects this method for repair. study objective improve efficiency repair rolling stock pairs. task which paper devoted expediency when repairing Research modeling. novelty work: defining Study results: and are found. Conclusions: use new (tu...

In a 3D free-form CAM system, a series of intermediate shape models for machining are required as the references of NC programming. The safety and efficiency of the machining greatly depend on the geometric relation between these intermediate shape models. However current CAM systems lack the function of automatic generation of the appropriate series of these shape models. In this paper, a new ...

This paper aims to present the critical issues and methodologies to improve robotic machining performance with flexile industrial robots. Design/methodology/approach – A complete solution using active force control is introduced to address various issues during the robotic machining process. Programming complex couture parts without a CAD model is made easy by using force control functions such...

We present high average power picosecond and nanosecond pulse delivery at 1030 nm and 1064 nm wavelengths respectively through a novel hollow-core Negative Curvature Fiber (NCF) for high-precision micro-machining applications. Picosecond pulses with an average power above 36 W and energies of 92 µJ, corresponding to a peak power density of 1.5 TWcm⁻² have been transmitted through the fiber with...

This study investigates dry machining of hypereutectic silicon–aluminum alloys assisted with vortex-tube (VT) cooling. The objective is to reduce cutting temperatures and tool wear by enhanced heat dissipation through the chilled air generated by a VT. A machining experiment, cutting mechanics analysis, and temperature simulations are employed to (1) model the heat transfer of a cutting tool sy...

In this study, a part recognition based data base system as an interface between CAD and CAM has been designed. The CAD models can be recognized by the developed program, the CNC codes, and machining parameters of the recognized models can be stored in the computer in a proper format. The information required for machining on CNC machine tools is retrieved from data base system recognizing the ...

Processing effect is a lot of. In this paper, the research perspective is to improve the machining efficiency and machining quality of the system. Based on the analysis of the characteristics of the edm process as the foundation, proposed a fuzzy control technology. In edm process, using fuzzy neural network control technology. According to the characteristics of the fuzzy controller, combined ...

Electrical Discharge Machining technological law is very complex, and many factors influence machining process. From the point of improving process efficiency and process quality, this paper analyses the characteristic in the process course of EDM first. Based on the analyses, a fuzzy neural control system for EDM was achieved. Utilizing the characteristic of fuzzy controller and combining with...