WO2007122679A1 - 板状刃物および固定治具 - Google Patents
板状刃物および固定治具 Download PDFInfo
- Publication number
- WO2007122679A1 WO2007122679A1 PCT/JP2006/307851 JP2006307851W WO2007122679A1 WO 2007122679 A1 WO2007122679 A1 WO 2007122679A1 JP 2006307851 W JP2006307851 W JP 2006307851W WO 2007122679 A1 WO2007122679 A1 WO 2007122679A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base metal
- blade
- base
- fixture
- plate
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/38—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools planing or slotting tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/025—Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/40—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
- B27G13/04—Securing the cutters by mechanical clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/20—Tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Definitions
- the present invention relates to a plate-shaped cutter in which a blade serving as a blade is welded to an edge along the longitudinal direction of a base serving as a rectangular plate-shaped base, and a cutting edge is formed on the blade. Further, the present invention relates to a fixing jig for positioning and fixing the base metal and the blade metal when the base metal and the blade metal are fixed.
- a cylindrical cutting tool called a powerful cylinder is rotatably disposed on a planer that processes a surface of a work material into a flat surface for wood processing or similar processing.
- a plate or the like is cut by a planer blade provided on the outer peripheral surface of the planer cylinder.
- a conventional planer blade used for such plane cutting is, for example, as shown in Patent Document 1.
- both end edges (wood side: edge) along the longitudinal direction of the cemented carbide formed into a rectangular plate shape are polished and formed, and cutting edges are formed on both wood sides to form a blade part.
- the cutting edge shown as a conventional example has a blade formed on both sides of the tree along the longitudinal direction, and the cutting edge of one blade cannot be used by using it for plane cutting.
- the planer blade is replaced in the opposite direction so that the cutting edge of the other blade can be newly used.
- the entire cutting blade is replaced and the used cutting blade is discarded.
- Patent Document 1 Real Fairness 2-23371
- the planer blade shown as a conventional example is designed to replace the entire planer blade when the blades on both sides cannot be used.
- the cemented carbide that constitutes a kana blade is more expensive than steel, etc., and the kana blade has a cemented carbide power, and the blade portion that accounts for a small percentage of the entire blade.
- the entire planer blade for wear Replacing was a factor that caused poor running efficiency and increased running costs.
- the inventor of the present application when conceiving the invention, correlates the crack 'strain generated when welding a metal plate having a hard sintered force to a base metal made of steel and the cross-sectional area of the metal plate. In order to confirm this, the following experiment was conducted.
- Base metal Carbon steel S45C annealed material
- the bar graph shown in Fig. 12 (a) represents the number of cracks in the blade 70 at each blade cross-section S.
- the bar graph shown in Fig. 12 (a) represents the number of cracks in the blade 70 at each blade cross-section S.
- the number of cracks generated is the blade cross-sectional area. It can be seen that it increases with the size of S.
- the graph shown in FIG. 12 (b) represents the relationship of the wood side strain amount ⁇ in each blade cross section S.
- the experiment was performed when the width dimension of the base metal 72 was changed with 100 mm width: 5 to 30 mm thickness: 1.5 mm. As a result, it was not confirmed that the blade 70 had cracks, but only the wood side distortion was confirmed.
- the inventor of the present application is convinced that laser welding can be performed without generating cracks in the blade metal 70 if the blade metal cross-sectional area S of the blade metal 70 is about 5.0 mm 2 or less. It came to. As described above, if it succeeds in suppressing the strain (especially wood side strain) that increases as the blade cross-sectional area S decreases, the use of expensive hard sintered bodies can be greatly reduced.
- the invention of the present application was able to be achieved with the conviction that it could be applied to a plate-shaped blade such as a planer blade. That is, the present invention has been proposed to solve the above-mentioned problems inherent in the conventional technology, and can reduce the product cost and suppress distortion caused by the difference in thermal expansion coefficient. It is an object of the present invention to provide a plate-shaped blade free from cracks. It is another object of the present invention to provide a fixing jig capable of reducing distortion and cracking during welding of a plate-shaped blade.
- a plate-shaped blade according to claim 1 is a rectangular plate-shaped base metal made of steel and serving as a base metal part, and a longitudinal length of the base metal.
- a blade that extends along the edge and is formed of a hard sintered body and serves as a blade is fixed by a welding layer in which a base metal is mainly melted by a high-power beam such as a laser, and the blade The cutting edge is formed so that the cross-sectional area of gold is set to 0.5 to 5.0 mm 2 .
- the base part is made of an inexpensive material. By doing so, the product cost of the entire blade can be reduced. Further, since the blade is fixed by a welding layer in which the base metal part is melted mainly by the laser, the heat input amount during welding can be reduced as much as possible, and the influence of thermal expansion can be suppressed.
- the blade is fixed to both edge portions of the base metal along the longitudinal direction facing the short direction.
- the engaging portion is provided in the central portion in the short direction of the base metal.
- the engagement portion can be engaged with the fixing jig for fixing the base metal during welding, and the base metal side caused by the temperature change of heating and cooling. Distortion can be suppressed.
- the engaging portion is constituted by a concave portion or a convex portion extending continuously or discontinuously in the longitudinal direction on one surface of the base metal.
- the fixing jig can be engaged with the concave portion or the convex portion. Therefore, the entire longitudinal direction of the base metal can be fixed in an engaged state, and the tree side distortion of the base metal can be suppressed.
- the invention according to claim 5 is configured such that the engaging portion has a plurality of through-hole forces provided so as to penetrate in the thickness direction at a predetermined interval in the longitudinal direction of the base metal.
- the fixing jig can be engaged with the through holes. it can. Accordingly, the entire longitudinal direction of the base metal can be fixed in an engaged state, and the wooden side distortion of the base metal can be suppressed.
- the engagement portion and the engaged portion are engaged by the base metal support portion and the base metal fixture that are engaged with the engagement portion via the engaged portion. In this state, the base metal was clamped from the thickness direction to suppress the occurrence of distortion, and the blade was fixed.
- the blade is laser welded to the base sandwiched between the base support and the base fixture that engages the engaged part with the engaging part.
- the deformation of the base metal during welding and cooling is reduced, and the distortion of the entire blade can be suppressed.
- a fixing jig according to claim 7 is provided to fix a blade made of a hard sintered body to a rectangular plate-shaped base metal.
- a base metal that is provided on a base and extends along the longitudinal direction of the base metal, and engages with an engaging part provided on the base metal via an engaged part to support one side of the base metal.
- a pressing portion which is detachably attached to one side of the base and sandwiching the base metal support portion and is provided at predetermined intervals in the longitudinal direction, is applied to the other surface of the base metal supported by the base metal support portion.
- a first base metal fixture capable of holding the base metal between the base metal support part,
- a second base metal fixture capable of abutting the pressing portions provided at intervals and sandwiching the base metal with the base metal support portion
- the first or second base metal fixture and the base metal support are detachably attached to one side or the other side of the base metal base where the base metal support portion is sandwiched and the base metal fixture is not attached.
- the blade metal With the base metal clamped between the base metal support and the base metal support attached to one side of the base, the blade metal is positioned and fixed by the blade base fixture attached to the other base. After attaching the second base metal fixture to the other side of the base from which the blade base fixture was removed, clamping the base metal with the base metal support, and then removing the first base metal fixture to remove the base metal The blade is positioned and secured with the blade fixing tool attached to one of the bases from which the first base metal fixing tool is removed. Structure to suppress the occurrence of gold distortion It is characterized by that.
- the product cost can be reduced, and the distortion of the entire blade is suppressed to a range in which the distortion can be corrected. This makes it possible to perform good processing. Further, according to the fixing jig according to the present invention, it is possible to suppress the distortion of the base metal that occurs during welding and cooling within a range in which the distortion can be corrected.
- FIG. 1 is a front view showing a planer blade according to an embodiment.
- FIG. 2 is a schematic perspective view of a planer blade according to an embodiment.
- FIG. 3 is a perspective view showing a fixing jig according to an embodiment.
- FIG. 4 is a front view showing a fixing jig according to an embodiment.
- FIG. 5 is a plan view showing a fixing jig according to an embodiment.
- FIG. 6 is a front view showing a base metal before welding.
- FIG. 7 is a front view showing a blade and a base before welding.
- FIG. 8 is a front view showing a planer blade immediately after welding.
- FIG. 9 is a schematic perspective view showing a planer blade and a base metal support according to a modified example.
- FIG. 10 is a schematic perspective view showing a planer blade and a base metal support according to another modification.
- FIG. 11 is a diagram showing experimental examples and experimental results, where (a) shows a base metal and a blade to be welded, (b) shows an explanatory diagram of wood side distortion, and (c) shows a measurement result. It is a table
- FIG. 12 is a graph showing experimental results, where (a) shows the number of cracks generated in each blade cross-sectional area, and (b) shows the amount of wood-side strain with respect to the blade cross-sectional area.
- a planer blade (plate-shaped blade) 10 includes a base metal 12 serving as a base of the planer blade 10, and a blade 14 and 14 laser-welded to the base metal 12. And welded layers (beads) 16, 16 generated when the blades 14, 14 are welded to the base metal 12.
- the base metal 12 is a steel plate such as tool steel or structural steel formed in a rectangular plate shape, and has one side on both sides along its longitudinal direction, for example, an edge on the back 18 side (wood side 12a 12b), linear blades 14 and 14 having a cross-sectional area of about 2.0 to 5.0111111 2 are laser welded.
- This blade 14 is made of a hard sintered body such as a cemented carbide or a polycrystalline diamond sintered body, laser-welded to the both wood sides 12a and 12b, and then polished to form a cutting edge. This constitutes the blade part of the blade 10.
- a high power density beam 56 is applied from the laser irradiation source 54 to the base 12 side as a main contact portion of the base 12 and the blade 14.
- the melted portion becomes the weld layer 16 and the blade 14 is fixed to the base metal 12.
- the “cross-sectional area” used in the description indicates a cross-sectional area when the blade 14 is cut in a direction perpendicular to the longitudinal direction (see the blade 14 in FIG. 1).
- the linear blade 14 having a cross-sectional area of about 2.0 to 5.0 mm 2 is used when the blade 14 after welding is polished to form a cutting edge. It is also the force required to make the area about 0.5 mm 2 or more.
- a blade 14 having a cross-sectional area of 3.0 mm 2 or less is preferable.
- the cross-sectional area of the blade 14 is 0.5 mm 2 or less when the cutting edge is formed, durability as the blade portion cannot be obtained, so it is preferable that after grinding (after forming the cutting edge)
- the cross-sectional area of the blade 14 is set to 1.0 mm 2 or more.
- a recess (engagement portion) 22 that engages with a fixing jig 20 described later is formed on the back surface (one surface) 18 of the base metal 12.
- the recess 22 is formed at the center in the short (width) direction on the back surface 18 of the base metal 12 in a groove shape extending continuously over the entire longitudinal direction of the base metal 12. Therefore, by engaging with a base metal support portion 24 (described later) of the fixing jig 20, the function of suppressing deformation of the base metal 12 is exhibited.
- the recesses 22 are continuously formed on the back surface 18 of the base metal 12, but a plurality of recesses are provided at predetermined intervals (discontinuously) along the longitudinal direction of the back surface 18 of the base metal 12. May be.
- the fixing jig 20 used to support and fix the planer blade 10 during laser welding includes a rigid base 26 and a center position in the width direction of the base 26.
- the base metal support 24 provided on the base plate is integrally formed.
- the base 26 has a first bottom portion 28 formed at the center in the width direction as the deepest depth, and a second bottom portion 30 and a third bottom portion 32 so as to rise one step to the left and right sides. Are formed into a symmetrical stepped structure.
- the base metal support portion 24 is formed by protruding from the first bottom portion 28 of the base 26 by a required height, and the upper portion of the base metal support portion 24 is engaged with the concave portion 22 of the planer blade 10.
- An engaged portion 24a having a substantially the same cross-sectional shape as the concave portion 22 is provided.
- the length of the base metal support 24 in the longitudinal direction is set to be the same as or slightly larger than the length in the longitudinal direction of the cutter blade 10, and is configured to be able to engage with the entire recess 22 of the cutter blade 10. That is, as shown in FIG. 4, the planer blade 10 is supported on the base metal support 24 in a state where the entire recess 22 is engaged with the engaged portion 24a.
- the height of the base metal support 24 is such that when the powerful blade 10 is supported on the engaged portion 24a, the surface (other surface) of the planer blade 10 (base 12) 34 force 3Set to approximately match the height of the bottom 32.
- the fixing jig 20 includes a first base metal fixture (base metal fixture) 36 and a second base metal fixture (base metal fixture) which are detachably disposed on the base 26. ) 38, and the first and second base metal fixtures 36 and 38 are attached to the base 26, so that the base metal 12 is sandwiched by the base metal support 24 in the thickness direction. That is, the first and second base metal fixtures 36 and 38 are opposite to the wood sides 12a and 12b on the welding side of the blade 14 with respect to the base 12 supported by the base support 24 in the base 26.
- the base metal 12 is clamped and fixed by either one of the first and second base metal fixtures 36 and 38 and the base metal support 24.
- the left side of the base metal support 24 is called one (side) and the right side is called the other (side).
- the first base metal fixture 36 is detachably attached to one side
- the second base metal fixture 38 is detachably attached to the other side.
- the first base metal fixture 36 is used when the blade 14 is welded to the other wooden side 12a of the base metal 12, and the first base metal fixture 36 has a plate-like fixture body 36a.
- a plurality of pressing portions 40 inclined downward in cross section are formed on the other side edge portion at predetermined intervals along the longitudinal direction of the fixture body 36a (see FIG. 3).
- the pressing portion 40 comes into contact with the surface 34 of the base 12 supported by the base support 24 and presses downward.
- the fixture body 36 a is placed on the third bottom portion 32 on one side, and the pressing portion 40 is placed on the base 12. Screwed by a pair of fixing bolts 42,42.
- the pressing portion 40 does not completely cover the surface 34 of the base metal 12; Is slightly exposed upward. Further, as shown in FIG. 5, the width dimension of the open end 40a of each pressing part 40 is set smaller than the distance dimension 1 between the pressing parts 44, 44 in the second base metal fixture 38 described later.
- the distance 1 between the pressing portions 40, 40 of the first base metal fixture 36 is fixed to the second base metal fixture 36.
- the width of the open end 44a of the pressing portion 44 in the tool 38 is set to be larger.
- the second base metal fixture 38 used when welding one side of the base metal 12 has basically the same configuration as the first base metal fixture 36, and the fixture body A plurality of pressing portions 44 are provided at predetermined intervals along the longitudinal direction of the side edge portion on one side of 38a.
- these pressing portions 44 are configured to contact and press against the surface 34 of the base metal 12 supported by the base metal supporting portion 24. Is done.
- the pressing portion 44 of the second base metal fixture 38 has a width dimension of the open end 44a smaller than the gap size 1 between the press portions 40, 40 of the first base metal fixture 36.
- the mutual pressing portions 40, 44 face each other between the opposing pressing portions 44, 44, 40, 40. . That is, when both the first and second base metal fixtures 36 and 38 are attached to the base 26 at the same time, the base 12 can be connected to the base support 24 without the respective pressing portions 40 and 44 interfering with each other. It can be pinched.
- the second base metal fixture 38 is attached to the base 26, the same as the first base metal fixture 36, the same Fastened by a pair of fixing bolts 52,52.
- the fixing jig 20 includes a blade fixing tool 46 for supporting the blade 14 with respect to the base metal 12.
- a blade fixing tool 46 for supporting the blade 14 with respect to the base metal 12.
- the blade fixing fixture 46 is attached to the corresponding second bottom portion 30 on the other side, The entire blade 14 can be supported and fixed in contact with the wood side 12a.
- one side of the blade fixing tool 46 is formed in a mountain shape, and a notch 48 capable of holding the blade 14 is provided on the top thereof. That is, for example, when the blade fixing tool 46 is attached to the other side of the base 26, the cutout portion 48 comes close to the wood side 12a, and between the cutout portion 48 and the wood side 12a. The blade 14 is clamped.
- the blade fixing tool 46 when the blade fixing tool 46 is attached to the base 26, the blade 14 is pressed and fixed to the base 12 by slightly sliding in the direction of approaching and separating from the base support 24. Composed. Accordingly, the operator inserts the blade 14 between the base metal 12 and the notch 48, and the blade fixing tool 46 is slid to the base 12 side to fix the blade 14.
- the blade fixing member 46 is fastened by a pair of fixing bolts 50 and 50 in the same manner as the first and second base metal fixing members 36 and 38. Further, when the blade 14 is welded to one wooden side 12b of the base metal 12, the blade fixing tool 46 is attached to the second bottom portion 30 on one side.
- a groove-like recess 22 is formed over the entire longitudinal direction on the back surface 18 of the base metal 12 having a rectangular cross-sectional steel material force. At this time, the recess 22 is formed so as to be positioned at the center of the back surface 18 in the width direction.
- the base metal 12 is placed on the base metal support 24. At this time, the engaged portion 24a of the base metal support portion 24 and the concave portion 22 are engaged in close contact, and the base metal 12 is positioned in the width direction over the entire longitudinal direction.
- the first base metal fixture 36 is placed on the third bottom portion 32 on the other side, and the pressing portion 40 is brought into contact with the surface 34 of the base metal 12 so that the base plate is fixed from the fixing bolts 42 and 42. Tighten 26mm.
- the first base metal fixture 36 has a plurality of pressing portions 40 in which all the longitudinal directions of the base metal 12 are aligned. The body is pressed at regular intervals.
- the blade 14 is fixed via a blade fixing tool 46. That is, the blade fixing tool 46 is temporarily fixed to the second bottom portion 30 on the other side, and the cutout portion 48 is opposed to the base metal 12. Then, the blade 14 is inserted between the base 12 and the notch 48, and the blade fixing tool 46 is slid to the base 12 side so that the blade 14 contacts the wood side 12a with a predetermined pressure. In this state, the blade fixing tool 46 is fixed with the fixing bolts 50 and 50. Thereby, the blade 14 is positioned and fixed in contact with the other wooden side 12a of the base metal 12. Further, as shown in FIG. 4, the contact portion between the blade 14 and the wood side 12a is exposed upward. As shown in FIG.
- the blade 14 at the stage before welding is formed into a rod shape as a whole by forming a hard sintered body in a circular cross section, for example.
- the cross section of the blade 14 is not necessarily limited to a circle, and the cross section may be a triangle or a quadrangle.
- the base metal 12 is sandwiched and fixed by the first base metal fixture 36 and the base metal support 24, and further the blade metal 14 is fixed by the blade metal fixture 46. And wood side 12a are welded.
- This welding is performed by laser welding that can be heated by a pin point to suppress deformation and distortion of the base metal 12 and the blade 14 and consequently the welding heat input can be reduced as much as possible.
- this laser irradiation source 54 can be a CO laser or YAG laser.
- the base metal 12 is melted by irradiating the high power density beam 56 mainly on the base metal 12 side at the contact portion between the other wood side 12a and the blade 14.
- a portion of the base metal 12 melted by the laser is welded to the blade 14 and becomes a weld layer 16 after cooling, so that the blade 14 is welded. Achieved. That is, at the time of welding, the base metal support portion 24 engages with the concave portion 22, and the first base metal fixture 36 clamps and fixes the base metal 12 with the upward force being pressed. It can suppress suitably.
- the amount of heat input to the base metal 12 can be reduced, and the thermal expansion of the base metal 12 can be further reduced.
- the blade 14 is always supported and fixed in its entire length by the blade fixing tool 46, reliable welding can be performed and distortion of the blade 14 itself can be suppressed.
- the blade 14 is welded to one wood side 12b.
- the blade fixing tool 46 is removed from the base 26.
- the second base metal fixture 38 is fixed to the base 26 with the first base metal fixture 36 attached. That is, the second base metal fixture 38 is placed on the third bottom portion 32 on the other side, and the pressing portions 44 are faced between the press portions 40, 40 of the first base metal fixture 36.
- the second base metal fixture 38 is attached to the other side of the base 26.
- the entire base metal 12 is sandwiched between the base metal support portions 24 by the first and second base metal fixtures 36 and 38.
- the fixing bolts 42 and 42 are removed, and the first base metal fixture 36 is removed from the base 26.
- the blade base fixture 46 is attached to one side of the base 26, and the blade 14 is attached.
- the base metal 12 is brought into contact with one wooden side 12b.
- the blade 14 is laser welded to one wooden side 12b, and the blade 14 is attached.
- the second base metal fixture 38 and the blade base fixture 46 are left to stand for a while to cool down, as shown in FIG.
- the weld layers 16 and 16 on both wood sides 12a and 12b are fixed to the blades 14 and 14, respectively.
- distortion correction and polishing finish are performed on both wood sides 12a and 12b to form cutting edge ridges, and a simple blade 10 as shown in FIG. 1 is completed.
- the base metal 12 is always fixed while being sandwiched between the first and second base metal fixtures 36 and 38 and the base metal support 24 during the period from welding to cooling.
- Deformation (tree side distortion) of the base metal 12 can be suitably suppressed. Therefore, even if the base metal 12 having a relatively cheap steel material strength is used, the planer blade 10 with suppressed distortion can be manufactured, and the manufacturing cost can be reduced.
- the base metal 12 is made of a relatively inexpensive material such as steel. By using the material, the product cost of the powerful blade 10 can be reduced. Further, the blades 14 and 14 provided on the both wood sides 12a and 12b are fixed by the weld layers 16 and 16 in which the base metal 12 is mainly melted by laser welding, so that the heat input during welding is minimized. And the influence of thermal expansion can be suppressed. In addition, since the blades 14 and 14 are provided on the both wood sides 12a and 12b, the directions of strain due to thermal expansion face each other in a balanced state, and the powerful deformation of the entire blade 10 can be further suppressed.
- the fixing jig 20 can be engaged with the concave portion 22. Therefore, the base metal The base metal 12 can be fixed in a state of being engaged over the entire longitudinal direction of the 12, and distortion generated when the base metal 12 is welded can be suppressed. That is, by engaging the concave portion 22 with the base metal support portion 24 and further pressing with the first and second base metal fixtures 36 and 38, the base metal 12 can be securely clamped and fixed. Therefore, it is possible to suppress deformation of the base metal 12 that becomes warp or bends.
- the base metal 12 is supported in an engaged state by the base metal support portion 24, and further, the base is supported by the first and second base metal fixtures 36 and 38. Since the metal 12 can be fixed in a pressed state, the base metal 12 can be fixed at all times during welding and cooling, and deformation of the base metal 12 can be suppressed. In addition, since the entire blade 14 is fixed in contact with the base metal 12 with the required pressure by the blade fixing tool 46, the blade 14 can be reliably welded and distortion of the blade 14 is suppressed. can do.
- the projecting portion 58 extending over the whole can be adopted as the engaging portion.
- the engaged portion of the base metal support portion 24 is formed as a concave portion 24 b that can be engaged with the convex portion 58.
- a plurality of protrusions 58 may be provided at predetermined intervals (discontinuously) along the longitudinal direction. Furthermore, as shown in FIG.
- each through hole 60 penetrates the plate surface of the base metal 12 in the thickness direction, and the engaged portion of the base metal support portion 24 is inserted and engaged therewith.
- the engaged portion of the base metal support portion 24 is composed of a plurality of protruding portions 24c that can be inserted through the through holes 60 correspondingly.
- the height of each protrusion 24c is set so as not to protrude from the surface 34 of the base metal 12 when the protrusion 24c is inserted into the through hole 60.
- the cutter blade 10 shown in the embodiment is provided with the blades 14 and 14 on the both wood sides 12a and 12b.
- the blade on either one of the wood sides is provided. It may be formed of gold14.
- the fixing jig 20 is used to fix the planer blade 10. Although described, it can also be used to fix other plate-shaped blades.
- the case where the blade 14 is welded from the other wood side 12a (the right side in FIG. 4) and then the one wood side 12b (the left side in the figure) is welded is shown. It is of course possible to weld from side 12b.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/307851 WO2007122679A1 (ja) | 2006-04-13 | 2006-04-13 | 板状刃物および固定治具 |
EP06731787A EP2006047A4 (en) | 2006-04-13 | 2006-04-13 | WAFER-TYPE CUTTING TOOL AND FASTENER ASSEMBLY |
US12/225,329 US20090250139A1 (en) | 2006-04-13 | 2006-04-13 | Plate-like cutting tool and fixing jig |
JP2008511886A JP5185108B2 (ja) | 2006-04-13 | 2006-04-13 | 板状刃物の製造方法および固定治具 |
TW095117785A TW200743561A (en) | 2006-04-13 | 2006-05-19 | Plate-shaped blade and fixing jig |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/307851 WO2007122679A1 (ja) | 2006-04-13 | 2006-04-13 | 板状刃物および固定治具 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007122679A1 true WO2007122679A1 (ja) | 2007-11-01 |
Family
ID=38624611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/307851 WO2007122679A1 (ja) | 2006-04-13 | 2006-04-13 | 板状刃物および固定治具 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090250139A1 (ja) |
EP (1) | EP2006047A4 (ja) |
JP (1) | JP5185108B2 (ja) |
TW (1) | TW200743561A (ja) |
WO (1) | WO2007122679A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8790439B2 (en) | 2008-06-02 | 2014-07-29 | Kennametal Inc. | Composite sintered powder metal articles |
AT507892B1 (de) * | 2009-11-27 | 2010-09-15 | Boehler Ybbstal Profil Gmbh | Verfahren zur herstellung von wendemessern |
CN102029455A (zh) * | 2010-12-21 | 2011-04-27 | 上海大学 | 用于焊接pcd刀片的夹具 |
JP2012145490A (ja) * | 2011-01-13 | 2012-08-02 | Sankei Engineering:Kk | 検査用プローブの製造方法 |
CN102581353B (zh) * | 2012-03-22 | 2014-02-26 | 沈阳飞机工业(集团)有限公司 | 钛合金用蒙皮锪钻的设计与加工方法 |
DE112013003682T5 (de) * | 2012-07-26 | 2015-04-30 | Kennametal Inc. | Metallische Sinterpulver-Verbundwerkstoffartikel |
CN106002044B (zh) * | 2016-06-15 | 2018-09-18 | 上海工程技术大学 | 焊接件夹具 |
AT16111U1 (de) * | 2017-11-15 | 2019-01-15 | Ceratizit Luxembourg S A R L | Schneidwerkzeug |
CN108581401A (zh) * | 2018-04-25 | 2018-09-28 | 哈尔滨汽轮机厂有限责任公司 | 一种r10圆弧车刀加工方法 |
CN108907561B (zh) * | 2018-07-27 | 2023-12-05 | 上汽大众汽车有限公司 | 一种用于车身件切割与拼接的夹具机构 |
SE543021C2 (en) * | 2018-09-13 | 2020-09-29 | Husqvarna Ab | Cutting blade for a robotic work tool |
US20220347876A1 (en) * | 2021-05-03 | 2022-11-03 | The Gillette Company Llc | Metals for razor blade applications |
CN113857510B (zh) * | 2021-10-21 | 2023-01-31 | 株洲钻石切削刀具股份有限公司 | 一种内冷切削刀具 |
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- 2006-04-13 US US12/225,329 patent/US20090250139A1/en not_active Abandoned
- 2006-04-13 JP JP2008511886A patent/JP5185108B2/ja active Active
- 2006-04-13 WO PCT/JP2006/307851 patent/WO2007122679A1/ja active Application Filing
- 2006-05-19 TW TW095117785A patent/TW200743561A/zh unknown
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US5456300A (en) | 1993-03-23 | 1995-10-10 | Bohler Ybbstalwerke G.M.B.H. | Cutter block and knife for a cutter spindle chipper |
JPH09314406A (ja) * | 1996-05-27 | 1997-12-09 | Osaka Diamond Ind Co Ltd | 超硬質切削用チップ及びその製造方法 |
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Also Published As
Publication number | Publication date |
---|---|
JP5185108B2 (ja) | 2013-04-17 |
US20090250139A1 (en) | 2009-10-08 |
JPWO2007122679A1 (ja) | 2009-08-27 |
EP2006047A2 (en) | 2008-12-24 |
EP2006047A4 (en) | 2009-03-25 |
EP2006047A9 (en) | 2009-05-20 |
TW200743561A (en) | 2007-12-01 |
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