Qualitative Aspects of Machined Surfaces of High Strength Steels

AbstractThe aim of this paper was to assess the impact of cutting speed in grinding quality of the surface layer test samples of heat-and chemically processed steel. To fulfill these objectives have been used experimental and computational methods, including statistical evaluation. Technology grinding was performed without cooling recess manner. The following were used grinding wheels-porous A9980K9V and A9980K13V. As machined materials were selected tool steel 19436.4, cemented and hardened steel 14109.4 and steel 16420.4. The hardness of steel is in the range of HRC=61÷62. The work follows the qualitative indicators to assess the integrity of the most common surface finish. These characteristics create conditions affecting the fatigue strength against wear, corrosion stability, quality and fits under

System Interface Design For CAD/CAM-Simulink Data Exchange System Using MATLAB

Integration between advanced control system theory and automation tools and technology brings about advancement in machining technology in tandem with requirement for smart and flexible manufacturing system. The integration takes in the form of seamless and automatic data communication between a CAD/CAM system and the more advanced control systems technology. This paper presents an interface design of a novel CAD/CAM-Simulink Data Exchange System (CS-DES) which links part geometry design using CAD/CAM technology with position controller scheme and algorithm designed in Matlab/Simulink environment. The proposed CS-DES system enhances data automation through formation of the graphical user input reference interface of the machine tools control system using NC manufacturing codes data as the reference input signal. The framework and role of CS-DES are elaborated and described in detail including pseudocodes generation for the CAD drawing graphical data integrated with the controller scheme designed in Simulink. The CS-DES interface was designed using MATLAB graphical user interactive development platform. Functions related to the user interface design are discussed in this paper. Finally, the system interface design of the data exchange system is expected to further enhance versatility of existing control system performance of a machine tool via creation of flexible input reference forms hence improving system accuracy, efficiency and productivity