4results about How to "Reduce cutting heat" patented technology

The utility model discloses a kind of concave composite chamfering cutter, belong to machining tool design technical field, the composite chamfering cutter includes two center symmetrical cutter teeth, cutter tooth is composed of back rake face, oblique front and cylindrical arc surface, wherein: the included angle range of back rake face and vertical face is 35 ° to 50 °, the included angle range of oblique front and vertical face is 8 ° to 15 °, cylindrical arc surface is the extension of cylindrical cutter body, the top end of cutter tooth is also provided with tooth end face, the included angle range of tooth end face and horizontal plane is 3 ° to 8 °. Compared with prior art, the composite chamfering cutter carries out mirror image processing to the two blades of tool, and designs specific cutter tooth angle, and the oblique front of specific angle can effectively increase the strength of tool, facilitate chip removal, and the back rake face of specific degree can reduce the wear of cutting edge while reducing vibration;The stability and service life of tool are improved, and the overall tool can effectively reduce the vibration interference in the machining process during the machining process, to ensure the stability and consistency of machining quality.

The utility model relates to the technical field of drill bit, especially to a variable helix integral hard alloy drill bit, including drill bit and drill handle, the drill bit and drill handle are integrally formed structure, the outer wall of drill bit is provided with the outer circle blade zone, the outer wall of drill bit is installed with the outer circle auxiliary blade zone, the outer wall of drill bit is provided with the rear blade angle, the outer wall of drill bit is provided with the top angle, the outer wall of drill bit is provided with helix angle one, the outer wall of drill bit is provided with excessive helix angle, through helix angle adjustment (high helix angle of entry section chip removal, low helix angle of exit section stable cutting), through the balance of chip removal and rigidity of groove type optimization, optimize the chip flow path, accelerate the chip removal, reduce the blockage and cutting heat, improve the hole wall quality, and the rigidity of the patent design product cutter is improved, in high -speed processing, reduce the blockage and heat accumulation, the precision and surface roughness of hole have been effectively improved, and with the cutting heat reduction, the tool life is further improved.

This invention belongs to the field of ceramic matrix composite material machining technology, and discloses a SiC f A method for drilling small, oblique holes in SiC ceramic matrix composites includes: using a grinding head with applied ultrasonic vibration to drill the SiC... f The SiC ceramic matrix composite workpiece is subjected to dot-mapping to form a slanted small hole inlet platform; an ultrasonically vibrating drill bit is used at the slanted small hole inlet platform to drill the SiC to be processed. f This invention aims to solve the problem of drilling oblique small holes in SiC ceramic matrix composite workpieces. f The high hardness, brittleness, and inhomogeneity of SiC ceramic matrix composites present technical challenges, such as difficulty in drilling small oblique holes and easy tool breakage during the machining process.

This invention discloses a cutting insert and a drilling tool for detachable mounting on a tool holder. The insert includes a first mounting plane and a second mounting plane, which form the seat surface of the insert; two V-shaped mating surfaces that fit and conform to the V-shaped positioning surface on the tool holder; at least one screw hole; four main cutting edges forming a polygonal outline on the V-shaped mating surfaces; a chip groove adjacent to the main cutting edges; a chisel edge connecting the main cutting edges; and a drill tip formed by the intersection of the theoretical extensions of the cutting edges of the main cutting edges. The insert as a whole has a symmetrical structure relative to the center line connecting the screw holes. The cutting insert can be mounted with either the first or second mounting plane facing the tool holder, allowing for drill tip interchangeability. This invention adopts a double-sided symmetrical design, overturning the traditional drill bit model that can only use one cutting tip, significantly improving the utilization rate of the insert material.