443 results about "Circular saw" patented technology

A slab processing machine includes a work table, a machining head, and at least one drive mechanism. The machining head mounts a circular saw blade for respective cutting of a stone or stone-like slab positioned on the work table with a finished face of the slab down on vacuum pods. A controller operates the machining head to rotate the machining head on the A-axis and bevel cut the slab while positioned upside down with the finished face down on the vacuum pods.

The invention discloses a cutting device for composite keel forming production, and belongs to the technical field of composite keel production. Comprising a rack, a conveying mechanism is installed on the upper surface of the rack, a dust cover is arranged above the inner wall of the rack, a second motor is connected to the front face of the dust cover through bolts, a rotating rod is fixedly connected to the output end of the second motor, and a circular saw blade is fixedly arranged on the outer side of the rotating rod in a sleeving mode; and the circular saw blade is rotationally connected to the interior of the dustproof cover through a rotating rod. According to the cutting device for composite keel forming production, cutting resistance can be adjusted in a self-adaptive mode, the cooling and dust removing range can be dynamically adapted, keels of multiple specifications are compatible, a circular saw blade moves to be synchronously linked with a spray head during cutting, swing of the spray head within the range of size is achieved through meshing switching of intermittent double racks and gears, chatter of the saw blade is restrained through cooperation with a friction ring, and notch defects are reduced; and the cylinder drives the component to translate to ensure that each mechanism adapts to the keels of multiple specifications, so that the cutting precision and efficiency are improved.

A circular saw blade has a substantially circular core zone which is surrounded by an edge zone adjoining the core zone radially outwards in the region of a boundary line in order to form a basic body. The edge zone has a plurality of teeth, each with a tooth face, and each tooth face is assigned a carbide tip. A tooth space is in each case formed between two teeth directly adjacent circumferentially, and a friction-reducing sliding coating and a wear-reducing hard coating are provided which are formed lying one above the other at least in certain regions.

The application discloses a processing method of corrugated paper packaging boxes, and adopts corrugated paper packaging box processing equipment to process the corrugated paper packaging boxes, wherein the corrugated paper packaging box processing equipment comprises a circular saw and a clamp; the circular saw is arranged in an adjustable position mode, the clamp can be moved in position relative to the circular saw; and the clamp can stack and fix a plurality of corrugated paper packaging boxes. The corrugated paper packaging box processing equipment is used to process the corrugated paper packaging boxes, the cutting operation on the plurality of corrugated paper packaging boxes can be completed at one time by means of the circular saw, and therefore the processing efficiency of the corrugated paper packaging boxes is greatly improved.

The invention discloses an agricultural machine blade protector cutting machine tool, and belongs to the technical field of sawing machines. Comprising a base frame provided with a workbench. The plurality of blade protector clamps are transversely arranged and fixed on the workbench; the lifting frame is installed on the base frame in a lifting mode through the lifting assembly and located above the workbench. The cutting head is transversely installed on the lifting frame in a sliding mode through a transverse sliding assembly. Wherein a circular saw blade is installed on the cutting head, a cutter guiding groove allowing the circular saw blade to transversely penetrate through is formed in the edge protector clamp, a sliding groove of an edge protector on the edge protector clamp is vertically upward, and the sliding groove and the cutter guiding groove are located in the same vertical plane. The multiple transversely-arranged edge protector clamps are arranged on the workbench, saw cutting of edge protector sliding grooves in all the clamps can be sequentially completed through single-time horizontal movement of the cutting head, and synchronous saw cutting of multiple workpieces is achieved; the clamp can complete automatic positioning and discharging, the auxiliary working time is shortened, and the machining efficiency is improved.

This invention relates to the field of circular saw technology and discloses a circular saw. The top of the base plate is connected to a power mechanism via a hinge mechanism. The output end of the power mechanism is connected to a saw blade. A negative pressure dust collection assembly, rotating synchronously with the saw blade, is mounted on the output shaft of the power mechanism. A protective cover is installed above the saw blade. A segmented dust collection hood assembly corresponding to the saw blade's cutting area is connected to the negative pressure dust collection assembly. This invention overcomes the bottlenecks of existing technologies from two core dimensions: power utilization and dynamic dust collection structure. It achieves efficient dust collection across the entire cutting depth range without adding extra power, while also possessing the advantages of simple structure, low cost, and high reliability. It exhibits outstanding substantive features and significant progress.

This utility model discloses a control device for a circular saw for cutting pipe fittings. It includes a device body with a rear sliding groove at the rear. A movable plate is slidably connected to the rear sliding groove, and a positioning device is fixedly connected to the movable plate. A drive motor is fixedly connected to the right end of the positioning device, and a threaded rod is fixedly connected to the output end of the drive motor via a coupling. A positioning clamping block is fitted onto the threaded rod. A hole is opened at the left end of the positioning clamping block, and a sliding rod is slidably connected within the hole. A measuring laser is fixedly connected to the left side of the middle section of the device body. This device uses a laser to mark and position the pipe fitting cutting area, ensuring cutting accuracy and ease of operation. The laser device uses a precise beam to indicate the cutting position, avoiding errors from manual visual inspection and improving cutting accuracy.

The utility model relates to the technical field of electric tools, in particular to a circular saw capable of adjusting cutting angle and depth, which comprises a base and a saw blade component, and a rectangular operation hole is arranged on the base; a cutting depth adjusting mechanism and a cutting angle adjusting mechanism are arranged on the base, and the two sides of the saw blade assembly are installed on the cutting depth adjusting mechanism and the cutting angle adjusting mechanism respectively. A first magnet is installed at the adjusting end of the cutting depth adjusting mechanism, and a first magnetic encoder matched with the first magnet is installed on the base. A second magnet is installed at the adjusting end of the cutting angle adjusting mechanism, and a second magnetic encoder matched with the second magnet is installed on the base. The cutting depth adjusting mechanism and the cutting angle adjusting mechanism can rapidly and conveniently adjust the cutting depth and the cutting angle of the saw blade assembly, the two sets of magnetic encoders are matched with the magnets, the adjusting changes of the cutting depth and the cutting angle can be accurately detected, the adjusting precision is high, and the adjusting effect is good.

A circular saw may include a base plate and a blade guard assembly coupled to the base plate, the blade guard assembly including an upper blade guard and a lower blade guard movable between an extended position and a retracted position. A circular saw may include a housing assembly coupled to a saw blade guard assembly, an output shaft, and a saw blade clamp coupled to the output shaft, the saw blade clamp configured to hold a saw blade. The circular saw may include a brushless direct current (DC) motor positioned within the housing assembly and operable to rotate the output shaft. The circular saw may include an electronic controller configured to perform a field weakening operation on the brushless DC motor.

This invention relates to a novel P-approach endoscopic lumbar fusion surgery method, belonging to the field of lumbar fusion surgery technology. This method addresses the high risk of nerve injury and insufficient operational precision in existing endoscopic fusion techniques by proposing an improved solution. It utilizes Kirschner wires for positioning at the inferior articular process to establish a precise entry point avoiding the nerve root pathway; a visually guided circular saw is used throughout the endoscopic procedure to construct a safe triangular working channel directly reaching the spinal canal; under full endoscopic monitoring, a unilateral approach is used for bilateral spinal canal decompression, thoroughly removing diseased tissue and scraping the endplates until punctate bleeding occurs; a bone graft cannula with a curved tip is used to precisely implant the fusion device into the anterior region of the intervertebral space, restoring intervertebral height through a self-locking structure; finally, a universal pedicle screw is percutaneously implanted for fixation. This method reduces the risk of nerve injury, improves surgical safety and efficiency, and is suitable for patients with lumbar spondylolisthesis complicated by spinal stenosis.

The present invention relates to a sawing device for guiding a circular saw (30) on a guide rail (10), wherein the guide rail (10) is used to linearly guide the circular saw (30) in the longitudinal direction of the track, wherein the circular saw (30) has a dust removal device (34) downstream of the saw blade receiving portion (33). To facilitate the operation of such sawing devices, the present invention provides a chip guide adapter (50) having a housing (41) with a chip guide channel (51), wherein the chip guide channel (51) forms a connection between a dust removal device (34) and a chip collection channel (15) assigned to or capable of being assigned to a guide rail (10), wherein the sawing device has a separable mechanical interface, and wherein the mechanical interface is configured to enable the circular saw (30) to be separated from the chip guide adapter (50), to be disassembled, or to be separated from the guide rail (10) or the chip collection channel (51) at any position in the longitudinal direction of the guide rail (10).

This invention discloses a fully automatic metal honeycomb core automatic layout and cutting device, belonging to the field of metal cutting technology. It solves the technical defects of existing metal honeycomb core cutting equipment, such as core cell crushing and edge chipping, difficulty in active avoidance by the circular saw blade, and incomplete automated layout. The device includes a frame assembly, a workpiece feeding mechanism, a workpiece positioning unit, a workpiece clamping structure, a circular saw blade cutting moving component, a workpiece rotation mechanism, and a CNC control system. These systems work collaboratively to achieve fully automatic layout and cutting of the metal honeycomb core panels. The circular saw blade cutting moving component drives the circular saw blade to descend to the workpiece surface for follow-up cutting. After cutting, it actively avoids obstacles through lifting and lateral movement. The workpiece rotation mechanism is integrated with the workpiece clamping structure, enabling precise rotation of the honeycomb core. Combined with the fully automatic layout software built into the CNC system, it achieves a closed-loop automatic layout and cutting process.

The utility model relates to a material receiving module after circular saw web stamping, which comprises a disc, storage rods and a driving motor, the storage rods are distributed at preset positions of the disc, and the storage rods are fixedly connected with the disc; the driving motor drives the disc to rotate, so that the storage rods rotate along with the disc; and the storage rod is used for receiving products stamped by the stamping equipment. According to the material receiving module for the stamped circular saw blade, the structure is simple, the automation degree is high, and the working efficiency of material receiving is improved; and secondly, due to the existence of a brake mechanism and a detection sensor, the operation safety coefficient of the material receiving module is improved.

The utility model relates to the technical field of circular sawing machines, and discloses a material distributing and discharging mechanism for a circular sawing machine, which comprises an equipment table and a circular saw rotatably connected to the equipment table, a supporting table is arranged on one side of the equipment table, and a scrap box is slidably connected to the supporting table. A scrap box is arranged on the supporting table, a screening mechanism for driving the scrap box to reciprocate is arranged on the supporting table, a material box is stacked on the scrap box, a feeding port is formed in the material box, a screening port is formed in the scrap box, and a filter plate covering the screening port is arranged at the bottom of the material box. The circular saw has the following advantages and effects that materials and chippings cut by the circular saw can be separated.

The utility model discloses a dust-free circular saw cutting device which comprises a rack, an operation panel arranged on the top of the rack, a saw blade arranged on one side of the rack and a cutting motor arranged on the other side of the rack and used for driving the saw blade to rotate, and is characterized by further comprising a dust collection assembly and a shade assembly. The dust collection bin and the saw blade are arranged on one side of the machine frame, the dust collection fan is fixedly installed on the other side of the machine frame, one end of the exhaust pipe is communicated with the dust collection bin, and the other end of the exhaust pipe is communicated with an air inlet of the dust collection fan. One end of the dust discharge pipe is communicated with an air outlet of the dust collection fan, and the other end is communicated with an external dust collection bag; the shade assembly comprises a transparent dust-free cover and a supporting piece fixedly arranged on the operation panel. The dust-free cover is connected with the supporting piece and arranged above the operation panel in a suspended mode along the cutting face of the saw blade. The cutting device is simple in structure, convenient and flexible to use and capable of greatly reducing dust diffusion and effectively stopping chippings from splashing while the cutting efficiency is not affected.

The invention relates to the technical field of circular saw blades, in particular to a circular saw blade with R-angle tool bits, which comprises a saw blade base body and the R-angle tool bits distributed in the circumferential direction of the saw blade base body, an R-angle front tool face is arranged at the front end of the R-angle tool bit, the R-angle tool bit is divided into a first tool bit body and a second tool bit body, and the first tool bit body and the second tool bit body are different in tooth shape and are arranged alternately. Through the design of the R-angle front tool face of the R-angle tool bit, the wall attachment effect is generated on the R-angle tool bit, the speed of airflow flowing through the R-angle tool bit is greatly increased, the temperature of a tool nose is reduced, and therefore the service life of the tool bit is prolonged, meanwhile, cutting chips in the R-angle tool bit can form vortex chip removal, the discharging speed of the cutting chips is increased, and chip blocking is not prone to occurring; the design that the first tool bits and the second tool bits are alternately arranged is adopted, cutting resistance and vibration of the edge of the saw blade are reduced, and the cutting precision is improved on the basis of reducing cutting noise in cooperation with the high-damping silicon rubber noise reduction lines on the saw blade base body.

The utility model relates to the field of disc saw, disclose a quick dismounting device of saw blade of disc saw, including mounting panel, the inner wall rotationally connected with transmission shaft of mounting panel, the output of transmission shaft is provided with fixed mechanism, the fixed mechanism includes installation subassembly and connecting component, be provided with cutting saw blade between installation subassembly and connecting component, installation subassembly includes mounting seat, the mounting seat fixed connection is in transmission shaft, the outer wall fixed connection of mounting seat has mounting disc. In the utility model, through setting up installation subassembly, when the deformation of the fixed inserted post appears when cutting saw blade long -term use causes, can utilize the push -out of inserted post by push -out plate, avoid the situation that cutting saw blade and connecting component jam, influence dismounting effect, and set up the pressure frame of auxiliary pushing on the mounting panel, utilize the lever pushing push -out plate of pressure frame, increase the dismounting speed and effect of device, further improve the practicality of device.

The invention relates to the technical field of H-shaped steel cutting, in particular to an H-shaped steel cutting device for steel structure building construction.The H-shaped steel cutting device comprises a rack, guide frames, a sliding plate, a hydraulic cylinder and the like, the top of the rack is connected with the two guide frames, the two guide frames are oppositely arranged left and right, and the two guide frames are jointly slidably connected with the sliding plate; a hydraulic cylinder is installed on the left guide frame, and a telescopic rod of the hydraulic cylinder is connected with the sliding plate. The output shaft of the driving motor can drive the circular saw blade to rotate, the circular saw blade can cut H-shaped steel, cooling liquid flows into the circular saw blade through the liquid inlet pipe to cool the circular saw blade, and under the action of centrifugal force, the cooling liquid can rapidly diffuse to fill the whole circular saw blade and can effectively make contact with a cutting area, so that the cutting efficiency is improved. Therefore, the utilization rate of the cooling liquid can be increased, waste is avoided, the cooling liquid cannot splash all around, and the cooling liquid can be prevented from being attached to the surface of the H-shaped steel.

This invention provides a hydraulic system for a bamboo felling machine head, relating to the field of bamboo felling equipment technology. The system includes: a hydraulic oil source, a saw blade motor, a first oil cylinder, a second oil cylinder, a flow divider valve, a first reversing valve, a second reversing valve, and a third reversing valve. The saw blade motor drives the circular saw to rotate and cut bamboo. The first oil cylinder drives the pushing clamp arm. The second oil cylinder drives the collecting clamp arm. The flow divider valve has an oil inlet, a first oil outlet, and a second oil outlet; the oil inlet is connected to the hydraulic oil source via a pipeline. The first reversing valve controls the start and stop of the saw blade motor. The second reversing valve controls the extension and retraction of the first oil cylinder. The third reversing valve is located between the second oil outlet of the flow divider valve and the second oil cylinder to control the extension and retraction of the second oil cylinder. This application provides a mechanized bamboo felling device.

The invention belongs to the technical field of metal material cold machining, and relates to an intelligent titanium alloy bar breaking and sawing device and a using method thereof.The device comprises a feeding system, a front clamping and conveying mechanism, a circular sawing machine main machine, a rear clamping and conveying mechanism and a collecting system which are sequentially connected according to the titanium alloy bar processing sequence; the feeding system, the circular sawing machine main machine and the material receiving system are all connected with the hydraulic station, the circular sawing machine main machine is provided with an oil mist cooler and a chip removal device and automatically completes positioning, cutting, sorting and waste recycling of bar billets, and a marking mechanism is further arranged on the material receiving system. The cutting parameters of the circular sawing machine are dynamically optimized by detecting the material, the diameter and the cutting state of the bar blank in real time, high-precision segmentation is achieved, meanwhile, material loss is reduced, and the method is suitable for high-end titanium alloy bar machining in the fields of aerospace, medical instruments and the like.

A circular saw cut-in pipe cutter includes a main housing, a drive mechanism disposed at least partially within the main housing, a saw blade operably coupled with the drive mechanism, and a slipper slidably coupled to the main housing. The slipper includes a tube container in which a tube may be received. The circular saw cut-in pipe cutter is adjustable between a cut-in state in which the main housing moves toward the slipper and the saw blade extends into the pipe container, and a retracted state in which the main housing moves away from the slipper and the saw blade does not extend into the pipe container.

A saw blade for a powerable circular saw including a circular blade including an outer circumferential surface, the outer circumferential surface including a plurality of cutting edges, an inner circumferential surface defining a central aperture, the central aperture being configured to fix the blade on a rotatable shaft of the circular saw, and at least one resilient member located between the shaft and the inner circumferential surface, the at least one resilient member being configured to provide resilience between the inner circumferential surface and the shaft.

The utility model relates to the related technical field of bar machining equipment, and one embodiment of the utility model provides a safety type circular sawing machine for special steel precision bar machining, which comprises a platform and a mounting seat, the mounting seat is arranged on the surface of the platform, an embedding groove is formed in the surface of the mounting seat, a fixed cutting assembly is arranged on the mounting seat, and the embedded groove is formed in the surface of the mounting seat. The cleaning assembly is arranged on the mounting base and the platform, the rolling assembly is arranged on the platform, the pair of telescopic air cylinders are installed in the two sides of the mounting base, the output ends of the pair of telescopic air cylinders are connected with a transverse frame, the side surface of the transverse frame is fixedly connected with a connecting column, and one end of the connecting column is provided with a pressing block. According to the technical scheme, the technical problems that in the prior art, too much cutting saw blades are exposed, operators are prone to touching the saw blades by mistake when equipment runs, great potential safety hazards exist, operation is inconvenient when waste residues are cleaned, a large amount of time and manpower need to be consumed, and production efficiency is reduced are solved.

The invention discloses a device and a method for measuring the sawtooth angle of a circular saw blade, and aims to overcome the defect that the sawtooth angle of the circular saw blade is in contact with a tool bit in the measurement process, so that the risk of scratching the tool bit exists. The device comprises a machine body, a loading base arranged in a sliding mode is installed on the machine body, and a circular saw blade is rotationally installed on the loading base; after the light source irradiates saw teeth of the circular saw blade, light is projected to the display screen to form a saw tooth contour; a measuring disc attached to the display screen is rotationally installed on the machine body, and a plurality of measuring lines extending outwards from the center in the radial direction are arranged on the measuring disc. The saw tooth angle measuring efficiency and accuracy of the circular saw blade are high, and the risk that the tool bit is scratched and broken is avoided.

The utility model discloses a wood bamboo board edge cutting mechanism which comprises a positioning mechanism, a conveying mechanism and an edge cutting mechanism, the positioning mechanism comprises a plurality of groups of pressing rolling wheels, the conveying mechanism comprises a conveying belt, the plurality of groups of pressing rolling wheels are arranged above the conveying belt at intervals, and the pressing rolling wheels are controlled by a driving part to ascend and descend. The materials are positioned and conveyed in cooperation with the conveying belt when descending to abut against the materials; the edge cutting mechanism comprises two pairs of circular saw blades, the two pairs of circular saw blades are arranged on the front side and the rear side of the conveying belt at intervals, the distance between the front pair of circular saw blades is larger than that between the rear pair of circular saw blades, and therefore when the conveying belt conveys materials to pass through the two pairs of circular saw blades, the front pair of circular saw blades conduct fixed-width trimming on the outer edges of the materials, and the rear pair of circular saw blades conduct accurate edge cutting on the materials. According to the edge cutting device, effective positioning of the wood and bamboo boards is achieved through the positioning mechanism, the edge cutting stability is improved, secondary edge cutting is conducted through the two pairs of circular saw blades, and the edge cutting precision is improved.

The invention provides an intelligent heat treatment production line for circular saw blades, and belongs to the technical field of circular saw blade manufacturing. The problem that in the production process of an existing circular saw blade, the product performance is unbalanced due to the poor constant-temperature uniformity of the heat treatment technology is solved. The device comprises a tempering furnace used for carrying out a high-temperature tempering process and a storage box used for storing the circular saw blades at intervals and putting the circular saw blades into the tempering furnace for a tempering reaction; the storage box comprises a bottom plate, two transverse side plates and two longitudinal side plates, the two transverse side plates and the two longitudinal side plates are fixed to the bottom plate, a plurality of discharging rod sets are transversely and fixedly arranged between the two transverse side plates at intervals, each discharging rod set comprises two discharging rods, a gap between the two discharging rods is large enough to contain a single circular saw blade, and a plurality of through holes are formed in the transverse side plates and the longitudinal side plates.

The pulping machine comprises a pretreatment frame, a pulping machine body is installed at the bottom of the pretreatment frame, a conical ring is fixedly connected to the interior of the pretreatment frame, a supporting ring is fixedly connected to the interior of the pretreatment frame, an annular groove is formed in the inner wall of the supporting ring, and the conical ring is fixedly connected to the interior of the annular groove. A circular ring is slidably connected to the inner wall of the annular groove, a driving ring is fixedly connected to the inner wall of the circular ring, an L-shaped frame is fixedly connected to the bottom of the pretreatment frame, and a first motor is fixedly connected to the outer wall of the L-shaped frame. By arranging the rhombic rotating disc, the threaded rod, the baffle and the nut, waste books with different thicknesses can be placed; by arranging a supporting ring, a circular ring, a driving ring, a first motor, a gear, a gear ring, a rhombic rotating disc, a second motor and a circular saw, a plurality of baffles and the rhombic rotating disc are used as multiple stations, and sealing edges of a plurality of waste books are sequentially cut.

The invention relates to the technical field of circular saw blades, in particular to a bamboo cross section cutter for cutting a wedge angle of a face, which comprises a cutter head, a plurality of tooth holders are arranged around the edge of the cutter head, each tooth holder is connected with cutter teeth, all the cutter teeth comprise a plurality of tooth groups, each tooth group comprises at least one first helical tooth, and each first helical tooth is provided with at least one second helical tooth. The cutter head further comprises at least one second helical tooth, the cutting face of the first helical tooth is inclined relative to the axis of the cutter head, and the cutting face of the second helical tooth and the cutting face of the first helical tooth form a splayed shape or an inverted splayed shape. By arranging the first oblique teeth and the second oblique teeth, the cutting faces of the first oblique teeth and the second oblique teeth incline towards the two sides of the cutter head correspondingly, on the basis that a complete fracture is formed, the contact face with bamboo wood can be reduced, the sharp cutting effect can be achieved, cuttings can be rapidly discharged through the obliquely-arranged cutting faces, and the cutting efficiency is improved. And burrs of bamboo fractures are reduced.

This invention belongs to the field of cable recycling technology, specifically disclosing a waste cable recycling device, including a mounting frame. A lower platform and an upper platform are mounted on the mounting frame from bottom to top. Magnetic pressure following and binding mechanisms are symmetrically arranged on both sides of the cable on the lower platform. A first telescopic cylinder is located on the side of the magnetic pressure following and binding mechanism facing away from the cable and connected to the mounting frame. Stripping mechanisms are located on the upper and lower sides of the cable. A cutting mechanism for cutting the cable downwards is located on the upper platform. This invention uses a servo motor to drive a pressure roller to feed the cable, which is then stripped by a cutter head. The first telescopic cylinder drives the magnetic pressure following mechanism to approach, using magnetic repulsion to press the cable against an arc-shaped pressure plate, which then moves forward to the front of the cutter head. After a distance sensor is triggered, the motor stops, and a circular saw cuts the cable between the pressure plate and the cutter head. The process then resets and repeats. This invention achieves continuous stripping and smooth cutting in tandem, avoiding scattered cuts and allowing for stepless adjustment of the cutting length.

The application relates to the technical field of door and window processing, in particular to a full-automatic cutting sawing machine for aluminum door and window corner code processing, which comprises a workbench, a main motor is fixedly installed on the side wall of the workbench, a transmission screw rod is fixedly installed at the output end of the main motor, a movable table is threadedly connected to the outer circular surface of the transmission screw rod, four groups of sliding rods one are slidably arranged on the top of the movable table, end blocks are welded to the end portions of the sliding rods one, rotating rods one are rotatably connected between every two adjacent end blocks, high-speed gears one and low-speed gears one are fixedly sleeved on the outer circular surfaces of the rotating rods one, and two symmetrical rotating rods two are rotatably connected to the top of the movable table. The device carries out alternate cutting operation by two groups of circular saw blades, the circular saw blade in the non-cutting operation state can obtain longer heat dissipation time, the formation speed of the 'chip tumor' is slowed down, and the loss rate of the circular saw blade is significantly reduced.