5results about How to "Increase chip space" patented technology

The invention provides a spiral fluted tap which is provided with a thick handle part, a neck part and a thick-head thread part which are coaxially arranged, the helical angle beta of the thread part is greater than 40 degrees; the groove profile of the thread part is of a three-groove structure and is in a straight-line three-arc form; the screw tap is made of a high-speed steel material subjected to vacuum heat treatment and subzero treatment and is subjected to passivation treatment. The technical problems that a spiral fluted tap is unsmooth in chip rolling and discharging, short in service life, prone to being broken, unstable in performance and low in working efficiency are solved. The cutter is beneficial to numerical control multi-line grinding machining, sharp in cutting, beneficial to tight chip rolling, long in service life, high in machining stability and high in efficiency.

The invention discloses a screw which is mainly characterized in that a rod body of the screw is provided with a plurality of channels which cross each other, threads of the screw are provided with a plurality of grooves and cutting edges formed on the peripheries of the grooves, and a convex tooth is formed between any two adjacent grooves. The positions of the convex teeth and the grooves of any two adjacent threads are exactly opposite, so that object fibers are cut rapidly through the multiple convex teeth and the multiple cutting edges to improve the cutting effect, enough space is provided for chip removal and chip containing in cooperation with the multiple grooves and the multiple channels, chips can be discharged rapidly, and the cutting efficiency is improved. And a proper amount of cuttings can be accommodated in the plurality of grooves and the plurality of channels after locking, so that the occlusion force and the locking property after locking are improved, and the screw is effectively prevented from loosening.

The invention discloses a single-layer electroplated grinding wheel and a preparation method thereof, the single-layer electroplated grinding wheel comprises an electroplated substrate and a grinding material, a fixing ring is arranged on the outer edge of the electroplated substrate, a plurality of through holes are formed in the surface of the fixing ring, and the grinding material is combined to the outer edge of the fixing ring through electroplating. According to the grinding material, the fixing ring and the through hole are arranged on the electroplated grinding wheel base body, the bonding area between the grinding material and the base body is increased, and the holding force of coating metal on the grinding material is increased. The coating thickness is reduced while the holding force is increased, the exposed height of abrasive particles is increased, the chip containing space is enlarged, the grinding wheel is prevented from being blocked, the heat dissipation effect is good, and the surface of a workpiece is prevented from being burnt.

The application relates to the technical field of grinding tools, and discloses a diamond grinding tool, which comprises a tool rod and a tool head fixed at the end of the tool rod, the tool head comprises a cemented carbide base and a diamond abrasive layer sintered on the surface of the cemented carbide base, the diamond abrasive layer completely and uniformly covers all grinding working surfaces of the cemented carbide base, has no defects such as missing coverage and local thin layer, and can effectively guarantee the overall grinding precision and wear resistance of the tool. The diamond grinding tool is provided with a multilayer composite diamond abrasive structure on the grinding working surface of the tool head, different-diameter diamond abrasives are arranged in layers, the chip space of the working surface of the tool head can be improved, the problems of grinding efficiency reduction and workpiece surface burning caused by chip blockage in the gap between abrasives during the grinding process can be avoided, the bonding strength of the diamond abrasive layer and the cemented carbide base is improved in combination with a metal transition bonding layer, early falling of the abrasives is avoided, and the service life of the tool is prolonged.

The utility model provides a long -life high -performance screw tip tap has the coarse handle handle, thin neck and screw tip of coaxial connection as an organic whole, the chip flute made of screw tip is three groove structure, and the chip flute of three groove structure is three equal parts distribution relative to tap center axis, and the chip flute groove shape is two straight lines two circular arc form, and the smooth transition between circular arc, the screw tip still is made with straight flute, and the screw tip tap adopts the high -speed steel material of vacuum heat treatment, cryogenic treatment and passivation treatment to make. The utility model solves how to reach the technical problem of high -efficient tapping processing of high -performance screw tip tap product on numerical control equipment, improves tap life, processing high -efficient, quality is stable, long -lived, is fit for promotion.