Synergetic approach to machining control of lathe group machines

Regulations are generalized on the synergetic theory of control for the case when the paths of shaping motions have a frequency structure exceeding considerably a pass band of servomotors which control a motion of executive elements. There is shown a simulator of the system and a dual optimization problem is under solution which is based on minimization of costs shown for manufacturing parts and for their accuracy support.

Investigational of optimization in machining substitute - Fuzzy Logic on WEDM by O2 Steel

New relevancy making of moo slide second-hand earthborn retentiveness with the WEDM projection have been spotlight a entangled, tempo-varying & random prosecute and input & reap remain excessive variables in Fuzzy Logic techniques. WEDM is a correspondent quotation of greatly input to the speculator with variables various wander of fluff algorithmic program. WEDM has manner the materials with the ragged severe act to the aggravation of added than separate rota actions namely. Metal removal standard (MRR) is clear sort and trauma width is prescribe to procure truthfulness composition have been utility of the Taguchi-Fuzzy Logic supported technique of argument sketch, the symbol manifestation of machining parameters and detail attempt is grade as quiver mothery age, pry incidental, pulsation on period, proceed standard and score string force. Taguchi-fluffy supported on map to MRR and TWR with the productiveness of discover to that of though machining control to every regulator workings and is usage plan of the demonstration to clatter(S)

Research on 3D printed fixture components

Fixtures are used for orientation, positioning and tightening of the workpiece during machining, control and assembly. The main fixture requirements are: orientation, positioning and tightening precision in accordance with the machining requirements. The materials used for fixture components, especially, supports and clamping mechanism are, usually, alloy steel with HRC hardness up to 55-60 HRC. These components are machined to high level of precision thus assuring the overall precision of the fixture. In order to achieve high stiffness and a good dampening capacity the fixture become, usually, very heavy. In the case of manually operated fixtures light weight is an advantage; also there are operations such as inspection, assembly where the operating forces are low. In this case lightweight materials can be used for fixture construction. In this paper the FDM (Fused Deposition Modeling) 3D printing technology is used. Support buttons and v-block fixture components were selected and 3D printed. The effect of printing orientation of active surfaces of support was analysed. The dimensional accuracy and surface roughness on the active surface were measured. Experimental results indicate that surface roughness is dependent on the orientation of the printed workpiece.

Mini Special Issue on Machining Control and Process Monitoring

Control and process monitoring are key technologies supporting high machining accuracy and efficiency. This special issue features six papers taking novel approaches to controlling machine and cutting tools and monitoring the machining process. The motion control of machine tools and cutting tools are introduced. A new challenge for monitoring the machining process by referring to NC control servo signals implements a practical proposal. The precise identification of friction at driving elements of machine tool components is an important factor in improving machine tool control motion accuracy. I would like to express my sincere appreciation to the authors and reviewers whose invaluable efforts have helped make the publication of this manuscript possible.