41results about How to "Efficient milling" patented technology

A cluster mill blank includes a framework constructed to cooperate with a blank holder of an existing CAD/CAM system, and a plurality of sub-blanks attached to the framework forming an addressable matrix or cluster blank. CAD/CAM systems including such a framework, as well as associated methods are described.

To provide a mill that can greatly reduce noise during operation and can also contribute to greater device compactness. The mill is provided with: a tubular drum body configured in a manner so that a material to be milled introduced from one section can be discharged from another section; a central shaft that penetrates within the drum body in the direction of tube length thereof; and a plurality of milling plates that are attached at a predetermined interval in the axial direction of the central shaft, and that compartmentalize the interior space of the drum body in to a plurality of milling chambers. The drum body and/or the milling plates rotate, and the mill does not have a milling medium that mills the material to be milled by contacting the material to be milled while rolling within the drum body.

The invention relates to a high-efficiency milling process method for split casings, which adopts cycloidal milling tool path, large depth of cut, small width of cut, and fast feed process parameters. The steps are: high-efficiency milling tool path planning; using large depth of cut , small cutting width, high feed speed mode, and optimize cutting parameters; high-efficiency milling tool path planning includes: select the tool path of helical feed and cycloid opening pre-processing groove; select the cycloid reciprocating tool path; pendulum Arc transitions are used between lines to avoid right-angle turns. The method of the present invention is applied in the face milling process of the outer shape of the aircraft engine opening case. The processing method adopts the cycloidal tool path, large depth of cut, small cutting width, and fast feed, and utilizes the advantage of the long edge of the tool to cut the surface of the opening case. It can be used in profile milling to improve the utilization rate of tools. In terms of reducing costs and improving processing efficiency, it realizes high-efficiency milling of open casings and improves processing efficiency.

A double-sided, indexable milling insert has a round basic shape defined by an imaginary cylinder, which is concentric with a center axis and extends between two reference planes that extend perpendicular to the center axis and are equidistantly separated from a neutral plane. The milling insert includes a pair of opposite chip faces located in the reference planes between which an envelope surface concentric with the center axis extends, a plurality of identical and alternately usable cutting edges along the peripheries of the chip faces, and lock means for rotationally securing the milling insert in one of several predetermined index positions. The individual cutting edge has the shape of a wave trough and includes two edge segments that meet at a bottom point.

Device and method for milling of materials including a milling cutter body including a first end portion and an opposite second end portion. The first end portion is connected to a rotatable spindle and the second end portion is provided with at least one cutting edge. The milling cutter body defines a longitudinal axis and is provided with an axial recess, wherein at least one mass element is arranged in the recess. The axial position of the mass element in relation to the milling cutter body is tuned by use of tuning members included in the device for the tuning of the natural frequency of the device. The mass element is axially locked in relation to the milling cutter body by use of lock members included in the device, in order to optimize the natural frequency of the device for the milling operation in question.

An inexpensive and reliable floating fastener is provided by manufacturing an integrated nutplate into the backside of the interior structural member. A retention clip engages the nutplate to capture the nut while allowing the nut to float. The integrated nutplate roughly aligns the floating nut to the axial through-hole in the structural member and provides the torque resistance required to drive the screw into the nut. The retention clip holds the nut in place and provides the axial resistance required for the lead chamfer of the screw to engage the nut and resist the axial loading on the screw during installation. The nutplate is designed to facilitate cost-effective manufacturing. The per hole cost of the integrated floating-fastener is approximately 30% of the cost of the industry standard riveted floating fastener.

Use of an aqueous composition containing at least one polycarboxylate ether as cement grinding aid, wherein the aqueous composition contains one or more additives, or the aqueous composition is used in combination with one or more additives, and wherein the additive is selected from 1,3-propanediol, a carboxylic acid, a sulfonated amino alcohol, boric acid, a salt of boric acid, a salt of phosphoric acid, sorbitol, a saccharide, a gluconate, iron sulfate, tin sulfate, an antimony salt, an alkali salt, an alkaline earth salt, lignin sulfonate, glycerol, melamine, melamine sulfonate and mixtures thereof.

A cutting tool assembly for milling a rail top, includes a first section and a second section mounted to the first section. Each section includes a plurality of insert-receiving pockets for receiving a plurality of different types of cutting inserts. The plurality of different types of cutting inserts are arranged in a plurality of helical teeth that may be separated by a helical chip flute. In one embodiment, a first type of cutting insert is formed with a radius, R, a second type of cutting insert is formed with a radius, R1, and a third type of cutting insert is formed with a radius, R2, to perform a milling operation on three different areas of the rail top.

The invention relates to an optimizing selection method of carbon fiber composite down milling and up milling machining manners and belongs to the technical field of machining. According to the optimizing selection method of the carbon fiber composite down milling and up milling machining manners, based on milling machining parameters, the actual change ranges of the fiber cutting angles in the milling process are correspondingly worked out, according to the properties of a utilized material and the utilized cutter structure, in an experiment or finite element calculation manner, the fiber cutting angle range enabling the machining quality to be the best is determined, the proportions of the condition that the actual ranges of the fiber cutting angles during down milling and up milling arewithin the optimal range are calculated finally, and the milling manner with the larger proportion is selected as the optimal milling manner under the working condition. By the adoption of the optimizing selection method, a new method can be provided for achievement of high-quality high-efficiency high-precision milling of a carbon fiber composite component, optimizing selection of the milling manners is achieved, the calculation steps are simple and convenient, and the optimizing selection method has good engineering application prospect.

The invention discloses an anti-fatigue efficient milling parameter optimization control method for a titanium alloy thin-wall component. The method comprises the following steps that: establishing the primary election technological parameter domain of a titanium alloy thin-wall component; carrying out an orthogonal test; testing the surface integrity parameter of a test component; establishing acharacteristic relational expression of a titanium alloy thin-wall component milling technological parameter and surface integrity; according to the relational expression of the titanium alloy thin-wall component milling technological parameter and the surface integrity, a target function and a milling technological parameter constraint condition, establishing an optimization model for the anti-fatigue efficient milling parameter of the titanium alloy thin-wall component; and through an optimization tool in MATLAB, solving the optimization model for the anti-fatigue efficient milling parameterof the titanium alloy thin-wall component to obtain the anti-fatigue efficient milling parameter of the titanium alloy thin-wall component. By use of the method, the problems of poor surface integrity characteristic and low material removal rate in a milling process of the titanium alloy thin-wall component are solved.

The invention discloses an end mill and a rotating shaft beam airfoil hyperboloid milling method based on the end mill, the end mill is suitable for efficient machining and forming of small-curvature hyperboloids, and the radian of a contact point of a cutter and a material is increased in cutter bottom edge machining, so that the cutting line spacing can be increased; the problem that the row spacing is small when a large-R bull-nose milling cutter is used for machining a curved surface through a fixed shaft is effectively solved, the part machining efficiency is improved by times, and meanwhile, a large amount of manual polishing by bench workers is eliminated. When the curved surface of the wing surface of the rotating shaft beam is milled, under the condition that the cutting linear speed, the feeding amount per tooth and the cutting residual height are not changed, the cutting efficiency is improved by about 5 times compared with that of a five-tooth integral hard alloy milling cutter used in an original process, so that the part surface line cutting time is about 40 min; and meanwhile, the cutting surface quality is improved, the surface texture is uniform, smooth and free of sticky chips; and the size precision of the machined curved surface completely meets the inspection requirements, a large amount of manual polishing of bench workers is eliminated, and the practicability is good.

The invention discloses a three-axis linking mechanism for processing a battery box body tray frame assembly and relates to the technical field of processing a battery box body tray. The three-axis linking mechanism comprises an X-axis direction translation structure, a Y-axis direction translation structure, a Z-axis direction translation structure and a C shaped mounting rack; the C shaped mounting rack is arranged with the upper and lower ends being symmetrical; a first milling cutter mechanism and a first deburring mechanism capable of doing lifting motion are mounted on the side part of the upper end; a second milling cutter mechanism and a second deburring mechanism capable of doing lifting motion are mounted at the lower end part; the first milling cutter mechanism and the second milling cutter mechanism are symmetrically and oppositely arranged; and the first deburring mechanism and the second deburring mechanism are symmetrically and oppositely arranged. The three-axis linkingmechanism can efficiently carry out milling and deburring operation on the upper and lower surfaces of a workpiece of the automobile battery box body tray frame assembly in a full-automatic manner, is efficient and precise in processing pace, high in control efficiency, small in occupied area, compact and efficient in structure, light in self weight and low in material cost.

The invention provides a metal powder manufacturing device capable of controlling the grain size of metal powder. The metal powder manufacturing device comprises a powder manufacturing device body. The powder manufacturing device body comprises a motor base, a rotating ring, a heating crucible and a housing. A first fixed rod is arranged at the top of the heating crucible. One end of the first fixed rod is welded on the inside wall at the top of the housing. A heating coil sleeves the heating crucible. A draft tube is arranged at the bottom of the heating crucible. A motor is arranged in the motor base. A rotating shaft is arranged at the bottom of the rotating ring. A through hole is formed in the top of the motor base. One end of the rotating shaft penetrates through the through hole tobe mounted on the output shaft of the motor. A rotating groove is formed in the top of the rotating ring. A diversion trench is formed in the inside wall of the rotating groove. A leakage net is arranged at the top of the diversion trench. An overflowing-preventing plate is arranged at the top of the leakage net. The metal powder manufacturing device is reasonable in design, high in powder manufacturing efficiency, and high in finished product ratio.

The invention discloses a milling cutter spindle with a large draw ratio and capable of automatic dynamic balance during super-speed rotation through material compensation, and provides the milling cutter spindle with a special hollow dynamic balance cavity. By accommodating compensation material ultra-fine copper powder in the cavity, in short acceleration time, the compensation material is redistributed by means of centrifugal force generated by rotation, and a rotating axis around the milling cutter spindle is banded, so that the residual unbalance degree of the milling cutter spindle is reduced, fast automatic dynamic balance of the milling cutter spindle in a high-speed rotation process is effectively achieved, axis deviation of the milling cutter spindle is effectively avoided, the eccentric amplitude of the milling cutter spindle is reduced, and the dynamic balance performance of the milling cutter spindle is improved. The detection part mainly refers to a bearing balance protection and detection device which comprises a bearing, a measuring instrument, a collector, a clamp and the like, and optimization design can be conducted on the compensation material and the special cavity structure, so that the automatic dynamic balance performance of the milling cutter spindle is improved.