10 results about "Chip formation" patented technology

A cutting tool for thread cutting has a thread turning cutting insert releasably retained in an insert pocket by a fastening member. The thread turning cutting insert has a thread cutting portion having three spaced apart cutting teeth. and a chip forming groove recessed in an insert upper surface. The chip forming groove includes a near-flank groove surface close to the cutting teeth and far-flank grove surface further away from the cutting teeth. The thread cutting portion includes three cutting edges formed at the intersection of the insert upper surface and an insert peripheral surface. Each cutting edge is located on a respective cutting tooth. The thread cutting portion includes three planar land surfaces located on the insert upper surface. Each land surface extends from an entire length of a respective cutting edge to the near-flank groove surface.

Examples described herein provide for controlling the trajectory of metal chips during a metal cutting operation. Aspects include determining a predicted metal chip formation pattern during the metal cutting operation of a workpiece. Prior to the initiation of the metal cutting operation, the system sets the orientation of the workpiece, and the cutting tool based on the predicted metal chip formation pattern. During the metal cutting operation, the system observes the actual metal chip formation pattern and adjusts the orientation of the workpiece and the cutting tool to control the trajectory of the metal chips, preventing them from contacting the finished portion of the workpiece. Aspects may also involve controlling an electromagnet to create a magnetic field to adjust the trajectory of the metal chips and determining the direction and speed of a cutting fluid applied by the cutting tool based on the predicted and actual metal chip formation patterns.

The invention relates to a computer-implemented system for automated machining process planning, comprising: a feature extraction module configured to analyze 2D drawings and 3D CAD models to identify machining features; a cutting tool selection module configured to match extracted features with suitable cutting tools; a process planning module configured to generate optimized machining plans; a cutting tool path generation module configured to create efficient cutting tool paths; characterized in that the system further comprises: a parameter optimization module incorporating chip formation physics to refine machining parameters; a collision detection module configured to identify and resolve potential collisions; and means for integrating the modules into a unified software platform.

A cutting tool for thread cutting has a thread turning cutting insert releasably retained in an insert pocket by a fastening member. The thread turning cutting insert has a thread cutting portion having three spaced apart cutting teeth, and a chip forming groove recessed in an insert upper surface. The chip forming groove includes a near-flank groove surface close to the cutting teeth and far-flank grove surface further away from the cutting teeth. The thread cutting portion includes three cutting edges formed at the intersection of the insert upper surface and an insert peripheral surface. Each cutting edge is located on a respective cutting tooth. The thread cutting portion includes three planar land surfaces located on the insert upper surface. Each land surface extends from an entire length of a respective cutting edge to the near-flank groove surface.

The invention discloses a vibration cutting machining method and device of a magnetic control spiral micro-nano robot, and the machining method comprises the following steps: carrying out elliptical vibration cutting machining on the surface of a base material, and forming a spiral base body by continuous cuttings generated by machining; and the surface of the spiral base body is coated with a magnetic material, and the magnetic control spiral micro-nano robot is formed. According to the vibration cutting machining method and device for the magnetic control spiral micro-nano robot, the cutting feeding motion is combined with elliptical vibration, so that the machining precision can be improved, and the prepared magnetic control spiral micro-nano robot is more uniform in appearance; the minimum achievable size of the magnetic control spiral micro-nano robot can be reduced, and the limitation of the minimum machining size is broken through; the occurrence rate of fracture and non-uniform deformation can be reduced; the cutting mechanism can be actively regulated and controlled through the synergistic effect of elliptical vibration and feeding movement of the cutter, so that the shape of cuttings is flexibly controlled.

The application discloses a kind of ultrasonic auxiliary milling force modeling methods suitable for round corner cutter, three-dimensional cutting force measured by cutting force measuring system is converted to the normal force and friction force suffered by tool rake face, and break through the limitation of traditional right-angle cutter model, innovatively introduce the geometric correction to tool round corner radius, decompose cutting edge into linear segment and circular arc segment respectively for mechanical analysis and synthesis, so that the model can more truly reflect the complex stress state of round corner cutter, significantly improve the calculation precision of normal force and friction force, and has fundamental significance for in-depth study of tribological behavior, wear mechanism and chip formation process.

The invention relates to an ultrasonic torsional vibration auxiliary milling method and device for an aluminum-based composite material. Ultrasonic frequency torsional vibration in the axial direction of the milling cutter is introduced in the conventional milling process, high-frequency micro-amplitude torsional vibration is overlaid while the milling cutter rotates at a high speed, and therefore periodic intermittent cutting is achieved, and the plastic deformation degree of materials and the abrasion rate of the cutter are effectively reduced. An adopted device comprises an ultrasonic vibration generator, an ultrasonic transducer, an amplitude-change pole and a milling cutter assembly. The ultrasonic transducer and the amplitude-change pole are integrally designed, the amplitude-change pole is of a conical structure, spiral inclined grooves are evenly distributed in the periphery of the amplitude-change pole, the amplitude-change pole serves as an ultrasonic cutter handle, one end of the amplitude-change pole is connected with a milling cutter, and stable excitation and efficient transmission of torsional vibration are achieved. According to the device, under the condition of optimized process parameters, the cutting force can be remarkably reduced, the chip forming mechanism is improved, breakage and pulling-out of a reinforced phase material are effectively restrained, and the integrity of the machined surface and the overall process stability are improved.

The utility model belongs to the technical field of machining cutters, particularly relates to a high-hardness round-nose milling cutter for titanium alloy machining, and aims to solve the problems that an existing device is not provided with a chip breaker groove, cuttings are difficult to break naturally and are extremely easy to wind on a cutter and a workpiece, cutter abrasion is aggravated, the service life of the cutter is shortened, the quality of a machined surface is affected, and the machining cost is high. According to the technical scheme, the cutting tool comprises a tool handle, a tool body is installed at one end of the tool handle, and a plurality of cutting edges are annularly distributed and fixed to the periphery of the tool body; the cutter has the advantages that the wave-shaped chip breaker grooves efficiently break chips to form a C shape or a short spiral shape, the parabola-shaped chip containing grooves and the spiral chip separating grooves cooperate, the former provides a large chip containing space and guides the chips, the latter divides the chips, winding is avoided, smooth chip removal is guaranteed, the situation that the chips wind a cutter or a workpiece is reduced, local excessive abrasion of the cutter is prevented, and the service life of the cutter is prolonged. The service life of the cutter is prolonged, and the machining precision is also improved.

Examples described herein provide for controlling the trajectory of metal chips during a metal cutting operation. Aspects include determining a predicted metal chip formation pattern during the metal cutting operation of a workpiece. Prior to the initiation of the metal cutting operation, the system sets the orientation of the workpiece, and the cutting tool based on the predicted metal chip formation pattern. During the metal cutting operation, the system observes the actual metal chip formation pattern and adjusts the orientation of the workpiece and the cutting tool to control the trajectory of the metal chips, preventing them from contacting the finished portion of the workpiece. Aspects may also involve controlling an electromagnet to create a magnetic field to adjust the trajectory of the metal chips and determining the direction and speed of a cutting fluid applied by the cutting tool based on the predicted and actual metal chip formation patterns.

A kind of precision machining method of nickel-titanium-iron shape memory alloy pipe joint with annular inner rib, the present application belongs to the technical field of mechanical processing of shape memory alloy.The present application solves the problems that existing nickel-titanium-iron shape memory alloy cutting is difficult, there is poor chip fracture, burr formation and serious tool wear in the process of chip formation, and precision machining of pipe joint cannot be realized.Method:one, cutting;Two, through-hole processing;Three, end face turning;Four, outer circle diameter turning processing;Five, turning processing of inner rib and inner hole.The present application is used for precision machining of nickel-titanium-iron shape memory alloy pipe joint with annular inner rib.