54results about How to "Good chip breaking effect" patented technology

The invention relates to a CrNiMo series easily cut pinion steel and a manufacturing method thereof. The steel comprises the following chemical compositions by weight percent: 0.17-0.23% of C, 0.15-0.37% of Si, 0.60-0.95% of Mn, 0.35-0.65% of Cr, 0.35-0.75% of Ni, 0.15-0.25% of Mo, less than or equal to 0.030% of P, 0.010-0.040% of S, 0.005-0.050% of Al, 0.3-0.6% of Ca/S, and the balance of Fe and micro-impurities. The manufacturing method comprises the following steps: smelting in a primary refining furnace (electric furnace or converter); and carrying out LF+VD (ladle refining + vacuum degassing) or RH external refining, continuous casting and rolling, wherein through the external refining and vacuum degassing treatment, the content of the oxygen in the steel is not more than 15*16<-6>,the content of microelement S is controlled, the cutting property of the CrNiMo series pinion steel is improved, and the steel is suitable for speedily cutting and processing important precision parts.

The invention discloses a totally-synthesized water-based stainless steel cutting liquid. The cutting liquid contains the following components: a stainless steel water-based extreme-pressure agent, caprylic-capric acid, boric acid triethanolamine ester, polyethylene glycol, a cation quaternary ammonium salt metal filings settling agent, a dicarboxylic compound antirusting agent, a monobutyl ether coupling agent, a hard-water-resisting agent, a defoamer and distilled water. By virtue of an environmental-friendly total-synthesis formula, the cleaning and settling properties of the cutting liquid are enhanced; an environmental-friendly special water-based extreme-pressure lubricant is used to substitute for the traditional synthetic ester, thereby ensuring the long-time stability of the cleaning and settling properties of the cutting liquid. The cutting liquid plays a very good role in protecting non-ferrous metal and ferrous metal; by virtue of the cation quaternary ammonium salt settling agent, the problem of iron filings settling during the processing of stainless steel is eliminated, and the transparency and stability of the cutting liquid in long-time use are guaranteed.

The invention discloses a precise composite reamer. The precise composite reamer comprises a reamer handle, a reamer head and two blades, wherein the reamer handle is welded with the tail part of the reamer head; the reamer head comprises a cylindrical section and a working section; the working section of the reamer head is provided with two diagonal V-shaped chip discharging grooves; the two blades are respectively arranged at the front ends of the two V-shaped chip discharging grooves and are composite blades made of polycrystalline diamond (PCD); the reamer head is made of YG8; the reamer handle is made of GCr15; the reamer handle and the tail part of the reamer head are in V-shaped welding, and the direction of V-shaped welding and the diagonal direction of the two V-shaped chip discharging grooves are vertical. The part of the reamer head participating in cutting is made of YG8, so that (1) the rigidity of the reamer is increased; and (2) the part of the reamer participates in machining of chamfering and arc transition and also participates in cutting similarly to the PCD blades, so that the process requirements are met, and the cost is saved. The handle part is made of GCr15, so that the production cost of the reamer is reduced, simultaneously the machining difficulty of a thread hole in the tail part of the reamer handle is reduced, the production efficiency is increased and the production cost of the reamer is reduced.

A cutting insert intended for heavy turning operations has a top side, a bottom side, a front surface disposed between the top and bottom sides, and a cutting edge disposed in the area between the top side and the front surface. The cutting insert includes a comparatively thick front part having a chip breaker positioned behind the edge and a rear part, which is thinner than the front part and tapers rearwardly therefrom. Disposed in the top side of the rear part is a recess for receiving a clamping unit to fix the cutting insert in a co-operating sear of a holder.

The invention relates to the technical field of metal cutting machining, in particular to a stainless steel flange turning blade. The stainless steel flange turning blade comprises a blade body with apolygon body. The blade body is provided with a plurality of first protruding parts along the periphery of a positioning center hole, and second protruding parts are located on the outer sides of every two adjacent first protruding parts. Cutting units are arranged on the vertex corners of the blade body. Each cutting unit comprises a main cutting edge, an arc cutting edge and a scrap breaking unit. Each scrap breaking unit is composed of a first scrap breaking table, a first front blade face, a second front blade face, a scrap breaking groove bottom plane, a scrap containing groove and a half-moon-shaped protruding part. The edge width at the position of each arc cutting edge and the angle of a first front corner at the position of each arc cutting edge are larger than the edge width atthe position of the corresponding main cutting edge and the angle of a first front corner at the position of the corresponding main cutting edge. According to the turning blade, the strength of the cutting edges is combined while the sharpness of the cutting edges is guaranteed. Through the design of the double scrap cutting tables and the design of the half-moon-shaped protruding parts, the cutting blade has a good scrap breaking effect during stainless steel flange rough machining and finish machining.

The invention discloses a complicated groove type milling cutter and a method for machining chip breaker grooves of the complicated groove type milling cutter. The molded line of an cutting edge of the milling cutter is in the shape of a Christmas tree, the milling cutter is provided with three or four teeth, the front angle of the milling cutter is 10 degrees, the helical angle of the milling cutter ranges from 3 degrees to 10 degrees, a chip breaker groove is formed in the back of the blade of the cutter and located on each tooth, the shape of each chip breaker groove is the same as the shape of the molded line of the cutting edge, the molded lines of the chip breaker grooves are corrugated, the chip breaker grooves of the teeth are sequentially staggered by certain wavelengths/teeth in the spiral direction of the milling cutter, the molded lines of the chip breaker grooves meet the relation R>r and the relation R=X2/(8Z)+Z/2-r, X refers to the wavelength, Z refers to the wave depth, R refers to the circular arc radius of upper half waves, and r refers to the circular arc radius of lower half waves. The method for machining the chip breaker grooves comprises the steps that the molded lines of the chip breaker grooves of the milling cutter are drawn by means of autocad drawing tool software and are guided into the num software of a numerically-controlled machine tool control system, a chip breaker groove machining program is generated automatically, and the chip breaker grooves of the milling cutter are machined automatically through a machine tool.

The invention discloses a longitudinal ultrasonic vibration turning device based on an engine lathe. The longitudinal ultrasonic vibration turning device comprises an ultrasonic vibration system, a special fixture and the engine lathe, wherein the engine lathe is connected to the ultrasonic vibration system through the special fixture; the special fixture comprises a base, a connecting plate fixedly arranged on the base, a cutter frame arranged on the connecting plate and a support frame; the ultrasonic vibration system comprises a cutter bar arranged on the cutter frame, a cutter blade arranged at one end of the cutter bar and used for cutting a workpiece, and an ultrasonic vibration mechanism causing the cutter blade to obtain certain amplitude; the ultrasonic vibration mechanism is connected to the support frame through an inner flange plate and an outer flange plate; and the base is connected to a slide carriage of the engine lather through a fastening bolt. The longitudinal ultrasonic vibration turning device based on the engine lathe overcomes the shortcomings of a traditional turning technology, improves the processing quality and the processing efficiency and has the characteristics of convenient structure installation, simple and easy disassembly, low economic cost and the like.

The invention relates to a strong turning tool with an adjustable chip breaking block and a use method thereof. The strong turning tool comprises the chip breaking block, a blade, a tool bar, a pressing piece, a clamping and fixing screw and an adjusting screw. A blade installation groove which is each in a parallelogram shape and an adjusting screw hole are formed in the upper end surface of the end of the tool bar, openings are formed in the front end surface and the upper side surface of the blade installation groove, and the blade is installed in the blade installation groove; the adjusting screw hole communicate with the rear side surface of the blade installation groove, the pressing piece is arranged at the end of the tool bar, and a chip breaking block installation groove is formed in the lower end surface of the end of the pressing piece; the chip breaking block is installed in the chip breaking block installation groove, and the bottom surface of the chip breaking block abuts against the top surface of the blade; and the clamping and fixing screw penetrates through the pressing piece and is connected with the tool bar, and the adjusting screw penetrates through the adjusting screw hole and then abuts against the blade. Compared with the prior art, the strong turning tool with the adjustable chip breaking block and the use method thereof overcome the defect that a chip breaking block of an ordinary tool cannot be adjusted, so that adjusting of the chip breaking block is achieved, and after being sharpened, the blade can also be adjusted; and the tool bar can also be repeatedly used, tool bar materials are saved, and the working time for sharpening and tool bar forging is greatly saved.

The invention belongs to the field of machining, and particularly relates to a cutting chip breaking device with active power. The cutting chip breaking device comprises an upper casing, a lower casing, a DC speed regulating motor, a three-edge milling cutter, a knife rest, a turning tool, a protective cover, a base, an L-shaped check block and a guide stud. The DC speed regulating motor is mounted on the upper casing and is connected with the three-edge milling cutter through a transmission structure, the outer side of the three-edge milling cutter is provided with the protective cover, the lower casing is mounted on the lower side of the upper casing and installed on the knife rest, the knife rest is also provided with the turning tool, the base is fixed on the side of the turning tool through a base bolt, the upper surface of the base is provided with a threaded hole, one end of the guide stud is screwed into the threaded hole, the L-shaped check block is mounted on the guide stud,the L-shaped check block can move up and down and rotate along the guide stud, and the L-shaped check block is disposed below the three-edge milling cutter. According to the cutting chip breaking device, an adjustment can be made according to different cutter angles and cutting amounts, which greatly improves the efficiency and reliability of chip breaking.

The invention discloses a wave-shaped helical-edge reamer comprising a bit (1), a neck portion (2) and a handle (3). The wave-shaped helical-edge reamer is characterized in that the bit (1) comprises teeth (4) at the top of the bit, side-cutting edges (5) connected with the teeth (4) and chip spaces (6) formed between the side-cutting edges; the side-cutting edges (5) are helical sine shaped edges; the bit (1) is provided with a flexible coating; anterior angle Alpha of the teeth (4) is 2 degrees, and posterior angle Beta of the teeth (4) is 6 degrees. The wave-shaped helical-edge reamer has the advantages that due to the wave-shaped helical edge structure, cutting is quick, chip breaking performance is excellent, chip removing is smooth, vibration is small, no damages occur to the edge, service life is long, change frequency and cost are low, production efficiency is improved, and the surface roughness of the workpieces to be processed is improved.

The invention relates to the technical field of milling cutters, in particular to a PCD forming sleeve milling cutter. The cutter comprises a cutter handle, a cutter neck platform formed at one end ofthe cutter handle and a cutter head fixedly connected to the side, away from the cutter handle, of the cutter neck platform. The cutter head comprises an annular cutter rest fixedly connected to thecutter neck platform and used for being arranged outside a to-be-machined workpiece in a sleeving manner, and a cutter body installed on the inner wall of the annular cutter rest. The milling cutter has the effects that the outer contour of the workpiece of a narrow space structure can be conveniently machined, and meanwhile, the possibility of cutter vibration is reduced to reduce scratches on the surface of the workpiece.

The invention discloses an adaptive chip breaker for heavy turning, belongs to the technical field of turning tools, and solves the problems of high possibility of generating C-shaped chips and sigma-shaped chips in a heavy turning process and long development cycle, high research and development expense and narrow application range of an indexable cutting tool of a chip breaking groove in the prior art. An angle adjusting hole of a horizontal plate is in threaded connection with a second threaded hole of a turning tool rod through an angle limiting bolt; the horizontal plate is in threaded connection with the turning tool rod through a central rotary bolt; a sliding block is glidingly arranged on the horizontal plate; a damping adjusting bolt penetrates through a vertical plate to be in threaded connection with the sliding block; a compression spring is arranged on the damping adjusting bolt in a sleeving manner; a baffle block is connected with the sliding block through a baffle block positioning bolt; the baffle block can rotate around the baffle block positioning bolt; one end of a push rod is glidingly connected with the sliding block; the other end of the push rod is hinged to the side surface of the baffle block; a gasket, a blade and the turning tool rod are fixedly connected through blade fastening bolts. The adaptive chip breaker is used for turning a workpiece.

The invention discloses an embedded ultrahard cutter and a manufacturing method, and belongs to the technical field of cutters. A tool bit is welded at the angle part of a blade, and is provided with a tool point; a first chip cutting table and a second chip cutting table are respectively arranged on the surface of the tool bit, namely two sides of the tool point; and the first chip cutting table and the second chip cutting table are respectively matched with an inclined surface on the upper surface of the blade. The first chip cutting table and the second chip cutting table are variable side surfaces. The first chip cutting table and the second chip cutting table are asymmetrically positioned on the back surface of the tool point; and the side surfaces of the first chip cutting table and the second chip cutting table are planes. Compared with a chip cutting groove blade for laser carving of a chip cutting table in the parent of 201521037249.6, the embedded ultrahard cutter has the following advantages: the difficulty and the time of machining complicated appearances and grooves on hard alloy basal bodies by using such processes as laser carving, cutting and grinding are far lower than the difficulty of machining on diamond cutter surfaces; the tool bit replacement and the secondary grinding can be realized; the basal bodies have no need to be replaced; and the use efficiency is improved.

The invention discloses a variable-feed turning chip breaking method capable of achieving real-time monitoring. The variable-feed turning chip breaking method is characterized in that when a numerical control machine tool carries out turning, the chip breaking thickness W and the chip breaking length L are taken as control targets, and a pulse control function is selected, so that the thicknesses of chips obtained after the cutting are inconsistent, the purpose of chip breaking is achieved, meanwhile, the cutting state is monitored in real time through an acoustic emission sensing module, if a certain section does not reach the predicted chip breaking state in the cutting process, the pulse control function is modified, it is ensured that chip breaking is completed, data of the whole process is recorded, an acoustic emission sensing technology and a variable feeding chip breaking method are utilized on a numerical control machine tool, no complex auxiliary device is needed, operation is easy and convenient, economical efficiency is good, and the automation degree is high.

Disclosed is a chip breaking device of an adjustable circular ultra-hard turning tool. The chip breaking device of the adjustable circular ultra-hard turning tool comprises a chip breaking block and a blade press plate, wherein the blade press plate is fixedly installed on a tool handle. The chip breaking block is located on the upper end face of a circular ultra-hard blade, and is characterized in that the circumferential surface of the chip breaking block is spiral, the spiral line is an archimedes spiral line or a hyperbolic spiral line or a fibonacci spiral line, and a chip breaking block angle adjusting mechanism is arranged between the blade press plate and the chip breaking block. The chip breaking device of the adjustable circular ultra-hard turning tool has the advantages that due to the facts that the circumferential surface of the chip breaking block is spiral, and the chip breaking block angle adjusting mechanism is arranged between the blade press plate and the chip breaking block, the chip breaking device can rotate the chip breaking block according to different cutting working conditions of the circular ultra-hard turning tool, the chip breaking effect of the chip breaking block can be optimal, and the adaptability is good; and due to the facts that fixation of the chip breaking device can be achieved by the use of the existing blade press plate of the ultra-hard turning tool, and the original structure of the circular ultra-hard turning tool does not need to be changed, the chip breaking device is easy to process, convenient to assemble and disassemble, and low in cost, and positioning and clamping of the chip breaking device are reliable and stable.

The invention discloses a chip breaking dragging wheel device for numerical-control machine tools. The chip breaking dragging wheel device comprises a dragging wheel body. The dragging wheel body is of a cylindrical structure with an opening upper end, the upper end of the dragging wheel body is obliquely arranged, at least two arc-shaped grooves are formed in a side of the upper edge which are positioned between a highest point and a lowest point of the upper end of the dragging wheel body, the lowest points of the arc-shaped grooves are lower than the lowest point of the dragging wheel body,and a connecting hole is formed in the lower end of the dragging wheel body. The chip breaking dragging wheel device has the advantages that the chip breaking dragging wheel device is exquisite in structure and convenient to use; drill bits can be lifted to the surfaces of workpieces in each procedure, accordingly, good chip removing and breaking effects can be realized, and the drill bits are long in service life.