WO2020122335A1 - Pointe de scie et scie circulaire la comprenant - Google Patents

Pointe de scie et scie circulaire la comprenant Download PDF

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Publication number
WO2020122335A1
WO2020122335A1 PCT/KR2019/006752 KR2019006752W WO2020122335A1 WO 2020122335 A1 WO2020122335 A1 WO 2020122335A1 KR 2019006752 W KR2019006752 W KR 2019006752W WO 2020122335 A1 WO2020122335 A1 WO 2020122335A1
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WO
WIPO (PCT)
Prior art keywords
saw blade
blade tip
width
cutting
saw
Prior art date
Application number
PCT/KR2019/006752
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English (en)
Korean (ko)
Inventor
김홍기
Original Assignee
김홍기
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Filing date
Publication date
Application filed by 김홍기 filed Critical 김홍기
Publication of WO2020122335A1 publication Critical patent/WO2020122335A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/025—Details of saw blade body

Definitions

  • the present invention relates to a saw blade tip and a circular saw having the same.
  • a circular saw is composed of a body forming a circular plate shape, a plurality of saw blades periodically formed along the outer circumference of the body, and a saw tip provided on each of the saw blades, and a metal pipe or iron plate, round bar, non-ferrous metal (Cu, Al, etc.) It is widely used for cutting or grooving various materials including industrial materials.
  • the saw blade is welded to the tip of the saw blade at the tip of the saw blade, because it cuts metals having very strong strength and hardness.
  • the saw blade tip is in direct contact with a metal material during the cutting operation to cut the surface little by little, and is generally made of an alloy such as tungsten carbide to provide cutting and abrasion resistance.
  • the saw blade tip is subjected to a polishing process using a grinder so as to reduce the height difference of a plurality of saw blade tips after welding attachment to the saw blade and ensure high-precision cutting performance of the disk-shaped tool.
  • the polishing machine can polish about 0.02 mm at a time.
  • the saw blade tip should have a relatively wide shape compared to other portions of the cutting portion for cutting the workpiece, and the possibility of a polishing error may occur due to the need to grind a large number of saw blade tips into such a shape. There was a problem leading to an increase in the defective rate of the product due to the high value.
  • the existing saw blade tip has to be polished to the vicinity of the saw blade as it polishes both the entire side surface and the entire upper surface, even a skilled worker may inadvertently polish the saw blade to increase the defect rate of the product.
  • the present invention was created to solve the problems of the prior art as described above, and an object of the present invention is to provide a saw blade tip and a circular saw having the same to facilitate the polishing process of the saw blade tip.
  • an object of the present invention is to provide a saw blade tip and a circular saw having the same, which can shorten the manufacturing period by minimizing the polishing area of the saw blade tip and lower the manufacturing cost.
  • an object of the present invention is to provide a saw blade tip and a circular saw having the same to prevent damage to the saw blade during the saw blade tip polishing process.
  • the object of the present invention is to provide a saw blade tip and a circular saw having the same, so that the width of the cutting portion for cutting the workpiece can have a relatively wide shape compared to the base portion for fixing the cutting portion regardless of before and after polishing. will be.
  • a saw blade tip includes: a saw blade tip welded to each of a plurality of saw blades formed radially on an outer circumferential surface of a circular saw, a base portion welded to the saw blade; And it is formed on the upper portion of the base, including a cutting portion for cutting a workpiece, the base portion is formed in a first width, characterized in that the cutting portion is formed in a second width greater than the first width.
  • the second width may be 5% to 20% larger than the first width.
  • the cutting portion, the protruding portion protruding outwardly compared to the left and right sides of the base portion is formed in the size of the second width; And an inclined portion formed between the base portion and the protruding portion, and having an inclination of a predetermined angle from the base portion and extending to the protruding portion.
  • a portion in which the base portion and the inclined portion are connected forms a curve of a first radius
  • a portion in which the inclined portion is connected to the protrusion portion forms a curve of a second radius
  • the second radius is the first radius. It can be smaller.
  • the protruding portion includes an edge portion as a cutting edge that protrudes in the direction in which the circular saw rotates and directly cuts the workpiece, is leveled from the edge portion to the inclined portion before polishing, and the edge after polishing It may have an inclined surface inclined at a predetermined angle in the direction of the inclined portion from the portion.
  • the protruding portion has a third width at a boundary portion between the inclined surface and the inclined portion after polishing, so that the edge portion as the cutting edge during polishing maintains the second width greater than the third width, It may be formed in a structure protruding to both sides before polishing.
  • a first chip discharge groove formed on the front surface of the cutting portion and having an inwardly recessed curved surface extending from the edge portion of the protrusion to the front surface of the base portion may be further included.
  • a circular saw according to another aspect of the present invention is characterized by including the saw blade tip described above.
  • the saw blade tip and the circular saw having the same according to the present invention are configured to increase the width of the cutting portion of the saw blade tip relative to the width of the base portion before grinding, so that only the cutting portion that is formed on the base portion to cut the workpiece is polished
  • the base can be polished without interference, and the saw blade tip can be easily polished.
  • the saw blade tip and the circular saw having the same according to the present invention can minimize the polishing area of the saw blade tip, thereby shortening the manufacturing period and lowering the manufacturing cost.
  • the saw blade tip and the circular saw having the same according to the present invention the abrasive portion of the saw blade tip is far from the saw blade, it is possible to prevent damage to the saw blade during the saw blade tip polishing process, thereby improving product reliability. have.
  • FIG. 1 is a view showing a circular saw with a saw blade tip according to an embodiment of the present invention.
  • FIGS. 2A and 2B are perspective views before and after polishing of the saw blade tip according to an embodiment of the present invention.
  • 3A and 3B are front views of the saw blade tip before and after polishing according to an embodiment of the present invention.
  • 4A and 4B are side views before and after polishing of the saw blade tip according to an embodiment of the present invention.
  • 5A and 5B are plan views before and after polishing of the saw blade tip according to an embodiment of the present invention.
  • 6A and 6B are perspective views before and after polishing the saw blade tip according to another embodiment of the present invention.
  • FIG. 7A and 7B are front views of the saw blade tip before and after polishing according to another embodiment of the present invention.
  • 8A and 8B are side views before and after polishing of the saw blade tip according to another embodiment of the present invention.
  • 9A and 9B are plan views before and after polishing of a saw blade tip according to another embodiment of the present invention.
  • FIG 1 is a view showing a circular saw with a saw blade tip according to an embodiment of the present invention
  • (a) and (b) of Figure 2 is a saw blade tip according to an embodiment of the present invention before and polishing
  • 3A and 3B are front views before and after polishing of the saw blade tip according to an embodiment of the present invention
  • FIGS. 4A and 4B are one embodiment of the present invention. It is a side view before and after polishing the saw blade tip according to an example
  • FIGS. 5A and 5B are plan views before and after polishing the saw blade tip according to an embodiment of the present invention.
  • the saw blade tip 100 according to an embodiment of the present invention, radially formed on the outer circumferential surface around the body 10 forming a circular plate shape, and the center of the body 10
  • a circular saw (1) comprising a plurality of saw blades 20, it can be welded to the tip of the saw blade (20) in order to cut metals of very strong strength and hardness.
  • a fastening hole 11 for detachment with another cutting tool is formed in the central portion, a plurality of auxiliary fastening holes 12 to the outside of the fastening hole 11 It can be formed radially.
  • Each of the plurality of saw blades (20) forms a bent surface (21) that provides a place where the saw blade tip (100) can be attached by welding, forms an inclined surface (22) extending from the top of the bent surface (21), and an inclined surface It forms a curved groove 23 extending from the lower end of the bending surface 21 of the neighboring saw blade 20 from (22). Accordingly, each of the plurality of saw blades 20 may be understood to form a triangular serrated shape of a general shape.
  • the bent surface 21 may be periodically formed on the outer circumferential surface of the body 10 together with the inclined surface 22 and the curved groove 23, and the angle between the vertical portion and the horizontal portion is 90 degrees or 90 degrees. It can, of course, can be variously formed according to the shape of the saw blade tip 100.
  • the saw blade tip 100 may include a base portion 110 that is welded to the bent surface 21 of each of the plurality of saw blades 20 and a cutting portion 120 for cutting a workpiece, and the saw blade 20 It can be completed by performing a polishing process using a grinder to secure the high-precision cutting performance of the disk-shaped tool, to reduce the height difference of the plurality of saw blade tips 100 after welding to the. At this time, the polishing machine can polish about 0.02 mm at a time.
  • the base portion 110 and the cutting portion 120 constituting the saw blade tip 100 may be integrally formed into a hexahedron, and the base portion 110 forms a lower portion of the saw blade tip 100 and the saw blade 20 It can be welded to perform a role of fixing the cutting portion 120, the cutting portion 120 forms a top of the saw blade tip 100 in the shape of a triangular serration and is supported by the base portion 110 to cut the workpiece Can play a role.
  • the base portion 110, the back side 112 may be welded to the vertical portion of the bending surface 21 of the saw blade 20, the lower surface 116 is a horizontal portion of the bending surface 21 of the saw blade 20 Can be attached to the welding.
  • the cutting portion 120 may be formed on the upper portion of the base portion 110, as shown in FIG. 4, so that the cutting portion 120 can be formed, the upper surface 115 is from the top of the rear surface 112.
  • a certain angle forward, for example, 10 degrees to 14 degrees, preferably 12.2 degrees to form an uphill slope to form a curve extending the top of the front 111 while forming a curve of the first radius R1 at a certain point Can be.
  • the base portion 110, the height of the front surface 111 relative to the bottom surface 116 is lower than the height of the rear surface 112, so that the curve of the first radius R1 is the front surface from the rear surface 112.
  • a downward curve is drawn in the (111) direction.
  • the front surface 111, the rear surface 112, the left surface 113, the right surface 114, and the bottom surface 116, excluding the upper surface 115, are horizontal, and illustrated in FIG. 3. As seen from the front, it may be formed in the size of the first width W1.
  • the first width W1 of the base portion 110 may be similar or equal to the thickness of the saw blade 20.
  • the size of the base portion 110 is formed to be the size of the first width W1
  • the size of the cutting portion 120 to be described later is the size of the second width W2 that is larger than the size of the first width W1.
  • the cutting part 120 is formed on a curved portion of the first radius R1 on the upper surface 115 of the base part 110, specifically, the upper part 115 of the base part 110, and is formed in a triangular serration to form a workpiece. It may be cut, and may include an inclined portion 121, a protruding portion 122, and a first chip discharge groove 123.
  • the cutting unit 120 may be formed to have a size of the second width W2 when viewed from the front as shown in FIG. 5.
  • the second width W2 of the cutting portion 120 is larger than the first width W1 of the base portion 110, for example, may be 5% to 20% larger than the first width W1.
  • the second width (W2) of the cutting portion 120 is greater than the first width (W1) of the base portion 110, the cutting portion 120 without interference of the base portion 110 during the saw blade chip polishing process ) Can be easily polished.
  • Cutting unit 120, the rear portion 112 and the lower surface 116 of the base portion 110 is welded to the bending surface 21 of the saw blade 20, to reduce the height difference and ensure high-precision cutting performance
  • the cutting parts 120 are divided into cases before and after polishing with reference to FIGS. 2 to 5 (a) and (b), respectively. Will be explained.
  • the inclined portion 121 on both sides of the curved portion of the first radius R1 from the upper surface 115 of the base portion 110, has an inclination of a certain angle to the outside and can be formed to extend to the protruding portion 122 have. That is, the inclined portion 121 may be formed between the base portion 110 and the protruding portion 122, by placing an inclination between the base portion 110 and the protruding portion 122, having a first width (W1) It is possible to increase the rigidity of the protruding portion 122 during cutting while facilitating the formation of the protruding portion 122 having the second width W2, which is a larger width than the base portion 110.
  • W1 first width
  • the inclined portion 121 is extended from the left and right side surfaces 113 and 114 of the base portion 110 to the protruding portion 122 when viewed from the front, as shown in FIG.
  • When viewed from the side as shown in Figure 4 may have a shape extending in a straight line from the upper surface 115 of the base portion 110 to the protrusion 122.
  • the inclined portion 121 does not need to be polished during the saw blade chip polishing process, so that the entire shape is not deformed, but can be partially polished at a boundary portion with the protrusion 122 when the protrusion 122 is polished.
  • a portion connected to the base portion 110 may be the same as the first width W1 of the base portion 110, and a portion connected to the protruding portion 122 It may be the same as the second width W2 of the protrusion 122.
  • a portion of the protrusion 122 is polished at a boundary portion with the protrusion 122 to be smaller than the second width W2 of the protrusion 122.
  • the protruding portion 122 may be connected to the inclined portion 121 as a portion for cutting the workpiece, and protrudes outwardly compared to the left and right sides 113 and 114 of the base portion 110 as shown in FIGS. 3 and 5. It is formed to the size of the second width (W2), as shown in Figure 4 can form a curve of the second radius (R2) at the connection portion with the inclined portion 121.
  • the second width W2 of the protruding portion 122 is greater than the first width W1 of the base portion 110, and the second radius R2 forming a boundary portion between the inclined portion 121 and the protruding portion 122 ) Is smaller than the first radius R1 forming the boundary between the inclined portion 121 and the base portion 110.
  • the protrusion 122 maintains the second width W2 while leveling from the edge portion 122a to the inclined portion 121 as shown by the solid line FL in FIGS. 3 and 5A before polishing.
  • the dotted line (DL) in FIG. 3(b) by performing a polishing process, from the upper side of the saw blade tip 100 to the lower direction from 1.2 degrees to 1.7 degrees, preferably about 1.5 degrees It has an inner slope, and in addition, 0.8 degrees to 1.2 degrees from the front portion of the saw blade tip 100 to the rear portion, preferably 1.0 when viewed in a plane as shown by the dotted line DL in FIG. 5B. It can be made to have an inner slope of the degree. Accordingly, the protruding portion 122 after polishing has an inclined surface inclined at a predetermined angle from the edge portion 122a toward the inclined portion 121 as a whole.
  • the protruding portion 122 after polishing retains the second width W2 in the edge portion 122a, but may be smaller than the second width W2 in the portion connected to the inclined portion 121.
  • the edge portion 122a may be referred to as a cutting edge that protrudes in the direction in which the circular saw 1 rotates and directly cuts the workpiece. That is, the protruding portion 122 has a third width W3 at the boundary between the inclined surface and the inclined portion 121 after polishing, and the edge portion 122a as a cutting edge during polishing is less than the third width W3.
  • the second width W2 In order to maintain the large second width W2, it must be formed in a structure protruding to both sides before polishing, which is the boundary between the inclined surface and the inclined portion 121 during polishing when the protrusion 122 is not a structure protruding to both sides Since the polishing occurs more at the edge portion 122a as a cutting edge than the portion, the second width W2 is smaller than the third width W3, so the function as a cutting edge is deteriorated.
  • the protrusion 122 has a shape that extends in a straight line from the top surface 115 of the base portion 110 having a slope when viewed from the side as shown by the solid line FL in FIG. 4A before polishing. After polishing, it can be seen that it is polished at a certain angle when viewed from the side as shown by the dotted line DL in FIG. 4B.
  • the protrusion 122 can be polished by a polishing process, which is to secure the high and low order of the saw blade tip 100 and high-precision cutting performance.
  • the edge portion 122a may have the same height or a height of 0.2 mm or less when an extension line is drawn from the front surface 111 of the base portion 110.
  • edge portion 122a may have a chamfer angle of a certain angle toward the rear side to increase cutting performance.
  • the protruding portion 122 may be preferably rounded or chamfered at the corners so as to prevent easy wear by a hard metal material or the like when cutting the workpiece.
  • the first chip discharge groove 123 may be formed on the front surface of the cutting part 120, and extends from the edge part 122a of the protruding part 122 to the front surface 111 of the base part 110. It is possible to achieve a recessed curved surface.
  • the first chip discharging groove 123 serves to break the chip cut at the edge portion 122a into several small sizes and easily discharge it to the outside. Due to this, the circular saw 1 having the saw blade tip 100 can be easily discharged of chips when cutting a workpiece, thereby reducing the wear of the saw blade tip 100 through a reduction in heat generation rate to improve the service life. can do.
  • the cutting unit 120 may further include a second chip discharge groove.
  • the second chip discharge groove may be formed on the upper surface of the cutting part 120, and may form a groove shape cut at a predetermined width from the edge part 122a of the protrusion 122 to the rear side.
  • the second chip discharging groove like the first chip discharging groove 123, allows chips to be cut at the edge portion 122a to be broken into several small sizes and easily discharged to the outside.
  • the cutting unit 120 may be prevented from being damaged due to expansion or contraction due to heat generated while rubbing with the workpiece. That is, the second chip discharge groove can serve to alleviate the expansion and contraction of the cutting unit 120. Due to this, the circular saw 1 having the saw blade tip 100 can be more easily discharged of chips when cutting a workpiece, as well as mitigating expansion and contraction due to heat of the cutting unit 120, The service life of the saw blade tip 100 can be further improved.
  • the second chip discharge groove may be formed on one side or the other side of the cutting unit 120.
  • the second chip has the same position. Rather than disposing the saw blade tip 100 in which the chip discharge groove is formed, it is preferable to allow the saw blade tip 100 in which the second chip discharge groove is formed in different positions to be alternately arranged. That is, the second chip discharge groove has a saw blade tip 100 formed on one side of the cutting portion 120 and the second chip discharge groove has a saw blade tip 100 formed on the other side of the cutting portion 120, a plurality of saw blades 20 By alternately arranging, it is possible to more smoothly discharge chips.
  • FIGS. 6 (a) and (b) are perspective views before and after polishing of the saw blade tip according to another embodiment of the present invention
  • FIGS. 7 (a) and (b) are saw blades according to another embodiment of the present invention
  • 8A and 8B are side views before and after polishing of the saw blade tip according to another embodiment of the present invention
  • FIGS. 9A and 9B Is a plan view before and after polishing the saw blade tip according to another embodiment of the present invention.
  • FIG. 6 to 9 shows the saw blade tip before polishing, (b) shows the saw blade tip after welding by welding to the saw blade, and also shows the polished part for understanding. It is indicated by hatching.
  • FIGS. shows that the saw blade tip 100 according to an embodiment of the present invention is applied to the circular saw 1, but the saw blade tip 200 according to another embodiment of the present invention shown in FIGS. Of course it can be applied.
  • a saw blade tip 200 according to another exemplary embodiment of the present invention will be described with reference to FIGS. 6 to 9, except that the saw blade tip 200 according to another exemplary embodiment of the present invention
  • a configuration using the same reference numerals as the saw blade tip 100 according to the embodiment does not necessarily mean the same configuration.
  • the saw blade tip 200 according to another embodiment of the present invention, the base portion 110 and the workpiece to be welded to the bending surface 21 of each of the plurality of saw blades 20 It may include a cutting unit 220 for cutting, and after welding and welding to the saw blade 20, to reduce the height difference of the plurality of saw blade tips 200, a polishing machine to ensure high-precision cutting performance of the disk-shaped tool It can be completed by performing a polishing process using. At this time, the polishing machine can polish about 0.02 mm at a time.
  • the rest of the configuration except for the cutting part 220 is the same as each configuration in the saw blade tip 100 of the embodiment of the present invention described above, and the same reference numerals are used, and accordingly In order to avoid duplication, a detailed description of each of the same components will be omitted, and only the cutting part 220 which is a different component from the exemplary embodiment of the present invention and a portion different from it will be described.
  • the cutting part 220 is formed on a curved portion of the first radius R1 on the upper surface 115 of the base part 110, specifically, the upper surface 115 of the base part 110, to form a triangular serration. It may be cut, and may include an inclined portion 221 and a protruding portion 222.
  • the cutting unit 220 may be formed in the size of the second width W2 when viewed from the front, similar to the cutting unit 120 of one embodiment, and the second width W2 is the first of the base unit 110.
  • the width W1 may be 5% to 20% larger than the first width W1.
  • Cutting unit 220, the rear surface 112 and the lower surface 116 of the base portion 110 is welded to the bending surface 21 of the saw blade 20 to reduce the height difference and ensure high-precision cutting performance
  • the cutting parts 220 are divided into cases before and after polishing with reference to FIGS. 6 to 9 (a) and (b), respectively. Will be explained.
  • the inclined portion 221, both sides on the curved portion of the first radius (R1) from the upper surface 115 of the base portion 110 has an inclination of a certain angle to the outside and can be formed to extend to the protrusion 222 It is similar to or the same as the inclined portion 121 of the above-described exemplary embodiment, and thus detailed description is omitted in order to avoid duplicate description.
  • the protruding portion 222 may be connected to the inclined portion 221 as a part for cutting the workpiece, and protrudes outwardly compared to the left and right side surfaces 113 and 114 of the base portion 110 as shown in FIGS. 7 and 9. It is formed to the size of the second width (W2), as shown in Figure 8 may form a curve of the second radius (R2) at the connection portion with the inclined portion 221.
  • the second width W2 of the protruding portion 222 is larger than the first width W1 of the base portion 110, and the second radius R2 forming a boundary portion between the inclined portion 221 and the protruding portion 222 ) Is smaller than the first radius R1 forming the boundary between the inclined portion 121 and the base portion 110.
  • the protrusions 222 have a second width W2 while leveling from the first edge portion 222a to the inclined portion 221 as shown by the solid line FL in FIGS. 7 and 9A before polishing. While maintaining the polishing process, as shown by the dashed line (DL) in FIG. 7(b), it is 1.2 degrees to 1.7 degrees, preferably 1.5 degrees from the upper side of the saw blade tip 200 when viewed from the side. In order to have an inner slope of the degree, in addition, as shown by the dotted line (DL) in FIG. 9(b), 0.8 degrees to 1.2 degrees from the front portion of the saw blade tip 500 to the rear portion, preferably May have an inner slope of about 1.0 degree. Accordingly, the protruding portion 222 after polishing has an inclined surface inclined at a predetermined angle from the first edge portion 222a toward the inclined portion 221 as a whole.
  • the protrusion 222 after polishing retains the second width W2 in the first edge portion 222a, but may be smaller than the second width W2 in the portion connected to the inclined portion 221. have.
  • the first edge portion 222a protrudes in a direction in which the circular saw 1 rotates and can be referred to as a cutting edge for directly cutting a workpiece.
  • the protrusion 222 has a shape that extends in a straight line from the top surface 115 of the base portion 110 having a slope when viewed from the side as shown by the solid line FL in FIG. 8(a) before polishing. After polishing, it can be seen that it is polished at a certain angle when viewed from the side as shown by the dotted line DL in FIG. 8B.
  • the protrusion 222 may be polished by a polishing process, which is to secure the high and low order of the saw blade tip 200 and high-precision cutting performance.
  • the first edge portion 222a may have the same height when an extension line is drawn from the front surface 111 of the base portion 110.
  • first edge portion 222a may have a chamfer angle of a certain angle toward the rear side, for example, 22 degrees to 28 degrees, preferably about 25 degrees, to increase cutting performance.
  • the protruding portion 122 may be provided with a second edge portion 222b formed by rounding or chamfering the corner portion to prevent it from being easily worn by a hard metal material or the like when cutting the workpiece.
  • the width of the cutting portion 120 of the saw blade tip 100 before polishing is configured to be relatively wide compared to the width of the base portion 110, so that it is formed on the upper portion of the base portion 110 to cut the workpiece. Only the cutting portion 120 to be polished can be polished without the interference of the base portion 110 during the polishing process, thereby facilitating the polishing process of the saw blade tip 100.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Sawing (AREA)

Abstract

La présente invention concerne une pointe de scie et une scie circulaire la comprenant, la pointe de scie de la présente invention étant une pointe de scie soudée et fixée à chacune d'une pluralité de dents de scie qui sont formées radialement sur la surface périphérique externe de la scie circulaire, la pointe de scie comprenant : une partie de base soudée et fixée à la dent de scie ; et une partie de coupe formée sur la partie supérieure de la partie de base de façon à couper une pièce à ouvrer, la partie de base étant formée de manière à avoir une première largeur, et la partie de coupe étant formée de manière à avoir une seconde largeur supérieure à la première largeur.
PCT/KR2019/006752 2018-12-12 2019-06-04 Pointe de scie et scie circulaire la comprenant WO2020122335A1 (fr)

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KR1020180160094A KR102144582B1 (ko) 2018-12-12 2018-12-12 톱날 팁 및 이를 구비한 원형톱
KR10-2018-0160094 2018-12-12

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10309626A (ja) * 1997-05-09 1998-11-24 Kanefusa Corp ダイヤモンド焼結チップ並びにダイヤモンドチップソー
JP2008213117A (ja) * 2007-03-07 2008-09-18 Tenryu Saw Mfg Co Ltd 回転鋸
JP2010214581A (ja) * 2009-03-17 2010-09-30 Yoshihiko Asada チップソー
US20140377021A1 (en) * 2013-06-21 2014-12-25 Albert Knebel Gmbh & Co. Kg Holding Saw blade having a small saw tooth
WO2017188480A1 (fr) * 2016-04-29 2017-11-02 (주)파워쏘 Lame de scie circulaire de coupe de métaux

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05337734A (ja) * 1992-06-08 1993-12-21 Omi Kogyo Co Ltd ステンレス用チップソー

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10309626A (ja) * 1997-05-09 1998-11-24 Kanefusa Corp ダイヤモンド焼結チップ並びにダイヤモンドチップソー
JP2008213117A (ja) * 2007-03-07 2008-09-18 Tenryu Saw Mfg Co Ltd 回転鋸
JP2010214581A (ja) * 2009-03-17 2010-09-30 Yoshihiko Asada チップソー
US20140377021A1 (en) * 2013-06-21 2014-12-25 Albert Knebel Gmbh & Co. Kg Holding Saw blade having a small saw tooth
WO2017188480A1 (fr) * 2016-04-29 2017-11-02 (주)파워쏘 Lame de scie circulaire de coupe de métaux

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