56results about How to "Chip removal is easy" patented technology

The invention discloses a special cutting-width-variable three-edge milling cutter for grooving an overall blade disk, belongs to the technical field of machining tools, and aims to solve the problems of tool abrasion, poor chip removal effect, poor machining quality, non-adjustable blade position, low machining efficiency, high production cost, large tool manufacturing difficulty and inconvenience in tool installation when the overall blade disk is grooved and machined by an existing three-edge milling cutter. A central bushing is fixedly arranged in a cutter body; N chip removal grooves are uniformly formed in the outer circumferential surface of the cutter body; two groove inner side surfaces of each chip removal groove are a large inclined surface and a small inclined surface; a cutter groove is formed in the small inclined surface of each chip removal groove; two adjacent cutter grooves are staggered; a threaded block groove is formed in the outer circumferential end surface of the cutter body; an elongated guide groove is formed in the side surface of each cutter groove; a blade is arranged in each cutter groove and is in fastened connection with a threaded hole of a threaded block through a fastening screw which penetrates into a fastening screw hole and each elongated guide groove; when each blade shifts for 0.5mm, 1.0mm or 1.5mm, a cushion block is arranged between each blade and the end surface of the corresponding cutter groove. The special cutting-width-variable three-edge milling cutter is used for grooving the overall blade disk.

The invention provides a method for machining a narrow groove system impeller, a grinding head and a preparation method of the grinding head. The grinding head is a cylinder. The top end of the grinding head is in the shape of a spherical surface, and a spiral groove is formed in the side wall of the grinding head. The preparation method includes the steps that materials for use are calculated; ingredients are weighed; wetting and material mixing are performed; pressing of grinding head sand blocks is performed; drying is performed; the firing link is performed; and the grinding head sand blocks which are qualified through checking are selected and enter an adhesion processing procedure of a cutter handle, the cutter handle is bonded, after adhesives are cured and stabilized, laser dressing is performed, grooving is performed, and acceptance check of the grinding head is performed, and therefore preparation of the grinding head is completed. The method for machining the narrow groove system impeller through the grinding head includes the steps that fluttering stability analysis is performed, and a stable lobe graph of a grinding system is established; the technological parameter selecting range of stable grinding is determined; and technological parameters of stable grinding are selected, and the grinding head is installed for grinding machining. By means of the grinding head, the grinding temperature is effectively lowered, the adhesion and abrasion effects of cuttings on the grinding head are reduced, the machining surface burning problem is reduced, and better machining surface quality is acquired.

The invention discloses a spiral fluted tap and a method for processing the same. The spiral fluted tap comprises a tap body provided with a plurality of uniformly distributed spiral flutes on a front cut part, wherein the spiral flute is an S-shaped smooth curved groove formed by sequentially connecting four sections of tangential circular arcs end to end; and the four sections of tangential circular arcs are a cutting circular arc, a chip curling circular arc, a chip accommodating circular arc and a blade back circular arc respectively. The method for processing the spiral fluted tap comprises the following steps of: (1) preparing before processing; (2) processing the spiral flute by a special tool: fitting a blade shape of a cutter by a computer, and then manufacturing the cutter according to the fitted cutter blade shape so as to process the spiral flute; and (3) carrying out subsequent treatment by using a machining process so as to obtain a finished product of the tap body. The spiral fluted tap processed by the method has simple structure and can be molded in one step. Moreover, the processing method is suitable for different processing materials, particularly for processing fluted taps made of light alloys, such as an aluminum alloy and the like.

The invention discloses a foaming-type grinding wheel with big air pores which is made of resin adhesive, an abrasive material, a thinner, a surface active agent, secondary reinforced resin, dextrin, a foaming agent, a defoaming agent, filler and starch. A manufacturing method of the foaming-type grinding wheel with big air pores includes the steps that the resin adhesive and the thinner are added into a container to be evenly stirred under the water bath condition of 60 DEG C; then the abrasive material and the surface active agent are added to be evenly stirred; afterwards, the secondary reinforced resin, the dextrin, the starch, the filler, the foaming agent and the defoaming agent are added in sequence, and slurry is injected into a mold of 45-60 DEG C when the reaction temperature of the slurry reaches 50 DEG C; and finally the mold is put into an oven to be roasted, demolding is conducted after the slurry in the mold is completely cured, and accordingly the foaming-type grinding wheel with big air pores can be obtained. The foaming-type grinding wheel with big air pores has the characteristics that the grinding wheel is low in weight and nontoxic, and air pores are uniform; the grinding wheel is far superior to a common resin grinding wheel on the aspects of water resistance, abrasion resistance, heat-conducting property and the like; and especially when the grinding wheel is used for grinding long-axis metal parts, no vibration ripple can be caused, and the grinding effect is better.