KR20180037111A - Circular plate typed rotating blade, cutting apparatus and method for manufacturing circular plate typed rotating blade - Google Patents

Abstract

The present invention provides a circular plate type rotating blade and a method for manufacturing the same, which can enable the circular plate type rotating blade to be long-lived when cutting an object to be cut with the circular plate type rotating blade. The circular plate type rotating blade (1A, 1B) comprises a resin portion (5) formed with a hardened resin molded by hardening a resin material, an abrasive grain (6), an organism-derived fiber type member (7), and an aggregate (8). The organism-derived fiber type member (7) is, for example, a vegetative fiber type member having hydrophilic property. The fiber type member (7) desirably has cellulose. The fiber type member (7) is more desirably a cellulose nanofiber (CNF) having high hydrophilic property.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a circular plate rotary blade, a cutting apparatus, and a method of manufacturing a circular plate rotary blade.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk-shaped rotary blade, a cutting device, and a method of manufacturing a disk-shaped rotary blade used when manufacturing a plurality of products by cutting an object to be cut.

In manufacturing electronic parts, a wafer (a semiconductor wafer) as a workpiece (an object to be cut) is cut using a blade having a disk-shaped rotary blade (see, for example, paragraphs [0054] ~ 3). By cutting the wafer, a plurality of discrete electronic components are manufactured. In this case, the discrete semiconductor chip is an electronic component (product). The semiconductor wafer is a composite material in which an impurity-diffused layer, an insulating layer, a wiring layer, and the like are formed on a base material made of silicon (Si), silicon carbide (SiC) or the like. The semiconductor wafer is also a plate member.

Another embodiment of the object to be cut includes an encapsulated substrate. The encapsulated substrate has a substrate, a plurality of chip-shaped parts mounted on a plurality of regions of the substrate, and a sealing resin formed in a planar shape so that a plurality of regions are collectively covered. The encapsulated substrate is a composite material in which a substrate on which a plurality of chip-like parts are mounted and a sealing resin are laminated. The encapsulated substrate is also a plate-shaped member.

[Patent Document] Japanese Patent Application Laid-Open No. 2013-084811

When dicing is performed on a workpiece by a blade rotating at high speed, friction occurs between the blade and the workpiece during cutting. The friction heat caused by the friction at the time of machining also promotes wear of the blades themselves, resulting in a problem that the blade life is shortened (see, for example, paragraph [0002] of Patent Document 1). For this problem, the demand for longevity improvement of the blade itself, which is a disk-shaped rotary blade, is getting stronger. In the present application document, the phrase " life span " means that the diameter of the disk-shaped rotary blade is reduced, so that the rotary blade has reached the stage where the cutting of the workpiece (cutting subject) using the rotary blade is obstructed. The reduction in the diameter of the disk-shaped rotary blade is caused by wear, wear and the like.

DISCLOSURE OF THE INVENTION In order to solve the above problems, it is an object of the present invention to provide a disk-shaped rotary blade, a cutting device, and a method of manufacturing a disk-shaped rotary blade capable of lengthening the disk- do.

According to an embodiment of the present invention,

A cured resin which is formed by curing the resin material,

An abrasive grains dispersed in the cured resin,

And a fibrous member derived from a biomolecule dispersed in the cured resin,

Wherein the cured resin comprises a cured resin which is formed by curing the resin material in a state where the abrasive grains and the fibrous member are dispersed in the resin material,

And is used for cutting an object to be cut.

In the disk-shaped rotary blade according to an embodiment of the present invention, in the disk-shaped rotary blade described above, the ratio of the fibrous member included in the disk-shaped rotary blade is 0.5 volume% or more and 30 volume% or less.

In the disk-shaped rotary blade according to an embodiment of the present invention, in the disk-shaped rotary blade described above, the ratio of the fibrous member included in the disk-shaped rotary blade is more than 30 volume% and less than 80 volume% .

According to the disk-shaped rotary blade according to the embodiment of the present invention, in the disk-shaped rotary blade described above, the fibrous member is derived from a plant.

According to the disk-shaped rotary blade according to the embodiment of the present invention, in the aforementioned disk-shaped rotary blade, the fibrous member includes cellulose.

According to the disk-shaped rotary blade according to the embodiment of the present invention, in the disk-shaped rotary blade described above, the fibrous member is derived from an animal.

According to the disk-shaped rotary blade according to the embodiment of the present invention, in the aforementioned disk-shaped rotary blade, the fibrous member includes chitin or chitosan.

According to the disk-shaped rotary blade according to the embodiment of the present invention, in the disk-shaped rotary blade described above, the object to be cut is a plate-like member having a plurality of regions each having a function.

According to the disk-shaped rotary blade according to the embodiment of the present invention, in the above-described disk-shaped rotary blade, the object to be cut is a circuit board on which a plurality of regions each of which an electronic circuit is formed are formed.

According to the disk-shaped rotary blade according to the embodiment of the present invention, in the disk-shaped rotary blade described above, the object to be cut has a plurality of regions, each of which is made of an electronic circuit, to be.

According to an embodiment of the present invention,

A rotary shaft to which the disk-shaped rotary blade is fixed,

A rotating mechanism for rotating the rotating shaft,

A fixing mechanism for fixing the object to be cut,

And a moving mechanism for relatively moving the rotating mechanism and the fixing mechanism. In this cutting apparatus, the disk-shaped rotary blade is one of the above-described disk-shaped rotary blades.

According to the cutting apparatus according to an embodiment of the present invention, in the above-described cutting apparatus, two of the rotating mechanisms are provided, and a plurality of the moving mechanisms are provided.

According to the cutting apparatus according to the embodiment of the present invention, in the above-described cutting apparatus, the two fixing mechanisms are provided, and a plurality of the moving mechanisms are provided.

A cutting apparatus according to an embodiment of the present invention is the above-described cutting apparatus,

A cutting module including at least the rotating shaft, the rotating mechanism, the fixing mechanism, and the moving mechanism;

And a control unit that controls at least an operation of the cutting module,

Wherein the cutting module is detachable with respect to another function module having a specific function,

The specific function includes at least one of cutting, cleaning, drying, measuring, inspection and polishing.

According to another aspect of the present invention, there is provided a method of manufacturing a disk-

Preparing an abrasive grain;

A step of preparing a fiber-derived member derived from a biomaterial,

A step of preparing a resin material,

Dispersing at least the abrasive grains and the fibrous members in the resin material to manufacture a mixed material;

Forming a plate-like mixed material by rolling the mixed material in a state where the abrasive grains and the fibrous member are dispersed in the resin material;

A step of manufacturing a disc-shaped mixed material by punching the plate-like mixed material,

A step of filling the molding mold with the disc-shaped mixed material,

Molding the disk-shaped molded article by heating the disk-shaped mixed material filled in the molding die while pressing the resin material to form a cured resin;

A step of cooling the disk-shaped molded article,

And a step of taking out a disk-shaped rotary blade made of said disk-shaped molded article from said forming mold.

Shaped rotary blade used for cutting an object to be cut.

According to the manufacturing method of the disk-shaped rotary blade according to the embodiment of the present invention, in the above-described manufacturing method, in the step of manufacturing the mixed material, the ratio of the fibrous member contained in the mixed material is 0.5 volume % Or more and 30 volume% or less.

According to another aspect of the present invention, there is provided a method of manufacturing a disk-

Preparing an abrasive grain;

A step of preparing a fiber-derived member derived from a biomaterial,

Preparing a resin material having fluidity;

Dispersing at least the abrasive grains and the fibrous members in a solvent to produce a dispersion material;

Preparing a disk-like dispersion material by mobilizing the dispersion material in a state where the abrasive grains and the fibrous material are dispersed in the solvent;

A step of drying the disk-like dispersion material,

A step of producing a disk-shaped mixed material by impregnating the dried disk-shaped dispersing material with the resin material,

A step of filling the molding mold with the disc-shaped mixed material,

Molding the disk-shaped molded article by heating the disk-shaped mixed material filled in the molding die while pressing the resin material to form a cured resin;

A step of cooling the disk-shaped molded article,

And a step of taking out a disk-shaped rotary blade made of said disk-shaped molded article from said forming mold.

Shaped rotary blade used for cutting an object to be cut.

According to the manufacturing method of the disk-shaped rotary blade according to the embodiment of the present invention, in the above-described manufacturing method, in the step of manufacturing the disk-shaped mixed material, The proportion of the member is set to more than 30% by volume and not more than 80% by volume.

According to the method of manufacturing a disk-shaped rotary blade according to an embodiment of the present invention, in the above-described manufacturing method, the disk-shaped rotary blade taken out from the molding die is placed in an atmosphere at a predetermined temperature, And further includes a step of heat treatment.

According to the manufacturing method of the disk-shaped rotary blade according to the embodiment of the present invention, in the above-described manufacturing method, the atmosphere at the predetermined temperature is any one of an atmospheric atmosphere, an inert atmosphere and a low-oxygen atmosphere.

According to the present invention, the abrasive grains and the fibrous members derived from the biomaterial are dispersed in the cured resin. A fiber-derived member derived from a biologically active substance has high affinity for water, so that it is easy to absorb moisture. As a result, the friction between the surface of the disk-shaped rotary blade and the surface of the object to be cut is reduced. Therefore, since the frictional heat generated when cutting the object to be cut is reduced by using the rotary blade, the service life of the rotary blade can be prolonged.

Fig. 1 (a) is a front view and a side view of a disk-shaped rotary blade according to the present invention, and Figs. 1 (b) and 1 (c) are enlarged schematic views of part A .
2 is a schematic view showing the manufacturing method of the disk-shaped rotary blade according to the present invention in the order of process.
3 (a) is a schematic plan view showing a cutting device according to the present invention, and FIGS. 3 (b) and 3 (c) are schematic plan views showing functional modules other than the cutting module.

(Example 1)

1, an overall structure of a disk-shaped rotary blade 1A (hereinafter referred to as " rotary blade " as appropriate) according to Embodiment 1 of the present invention will be described. 1 (a) is a front view and a side view of a disk-shaped rotary blade according to the present invention. The disk-shaped rotary blade 1B is a rotary blade according to another embodiment (described later) of the present invention, and has components different from those of the rotary blade 1A.

All drawings in the present application are drawn schematically by omitting or exaggerating them appropriately for the sake of easy understanding. The same components are denoted by the same reference numerals and the description thereof will be omitted as appropriate.

As shown in Fig. 1 (a), the disk-shaped rotary blade 1A has a circular hole 2 in the central portion of the rotary blade 1A in which a rotary shaft (not shown) of the cutting device is inserted. As shown in the left side of Fig. 1 (a), the rotary blade 1A has a circular outer shape and a circular hole 2 concentric with the circular shape. The rotary blade 1A has side portions 3 on both sides and an outer peripheral portion 4. The rotating blade 1A is formed such that the outer portion of the round hole 2 of the side surface portions 3 on both sides is engaged with two opposing jigs (not shown) in a state where the rotating shaft is fitted in the round hole 2 . And the rotary blades 1A are fixed to the rotary shaft of the cutting device by screwing two opposing jigs.

The virtual center C of the rotary blade 1A coincides with the center line of the rotary shaft of the cutting device. The rotary shaft of the cutting device is connected to a rotary shaft of a motor (not shown) such as a servo motor. As the rotary shaft of the motor rotates, the rotary shaft of the cutting device rotates. Accordingly, the rotary blade 1A fixed to the rotary shaft of the cutting device rotates at a predetermined rotation speed (e.g., 15000 to 30000 rpm). The outer peripheral portion 4 of the rotating rotary blade 1A is stuck to the object to be cut so that the object to be cut is cut. In the present application document, the phrase " cutting the object to be cut " includes the phrase "cutting a part in the thickness direction of the object to be cut" (half cut) and " Means both cutting (cutting the object completely) "(full cut).

The microstructure of the disk-shaped rotary blade 1A according to the first embodiment of the present invention will be described with reference to Fig. 1 (b). As shown in Fig. 1 (b), the disk-shaped rotary blade 1A includes a resin portion 5 made of a hardened resin, abrasive grains 6, and a fibrous member 7 derived from a biomaterial . In other words, the abrasive grains 6 and the fibrous members 7 derived from the organism are dispersed in the resin part 5 made of the cured resin.

The resin part 5 is made of a thermosetting resin made of, for example, phenol resin, epoxy resin, polyimide resin or the like as a synthetic resin. The abrasive grains 6 are made of, for example, diamond, cBN (cubic boron nitride) or the like.

The disk-shaped rotary blade 1A may include an aggregate (8). As the aggregate 8, materials such as tungsten carbide (WC), alumina (Al ₂ O ₃ ) and silicon carbide (SiC) are used. The disk-shaped rotary blade 1A may contain other additives. As other additives, materials such as carbon black and silane coupling materials are used.

The biological-derived fibrous member 7 is, for example, a vegetable fibrous member having hydrophilic properties. The vegetable fibrous member 7 preferably comprises cellulose. The fibrous member 7 is more preferably a cellulose nanofiber (CNF) having high hydrophilicity. Cellulose nanofiber means "nanofiber produced by mechanical fiber separation (cellulose) contained in plant fiber as raw material" ("Japan's first! Mass production and sale of biomass nanofiber!") , [online], Sugino Machine, [search on Sept. 16, 2016], Internet <URL: http://www.sugino.com/site/biomass-nanofiber/guidance.html>).

The cellulose nanofibers used in Example 1 have, for example, a value of a diameter and a length of a next diameter (diameter of a cross section perpendicular to the longitudinal direction). The diameter (?) Of the cellulose nanofibers is about several tens (tens) to 200 nm, and the length is about 1 to 10 μm or more. Therefore, the aspect ratio (length / diameter value) of the cellulose nanofibers to be used is several tens (several tens) to several hundred (several hundreds) or more.

1B and 1C show a state in which a part of the tip end of the fibrous member 7 protrudes from the surface of the resin part 5 in the rotating blades 1A and 1B subjected to dressing before use, . In the interior of the resin part 5, portions extending from the respective fibrous members 7 protruding from the surface of the resin part 5 are entangled with each other. The abrasive grains 6 and the aggregate 8 exist between the plurality of fibrous members 7 that are entangled with each other in the interior of the resin part 5. [ With these configurations, the mechanical strength of the rotary blade 1A, for example, the elastic modulus, the bending strength, the tensile strength, etc., increases.

In the disk-shaped rotary blade 1A according to the first embodiment, the abrasive grains 6 and the fibrous members 7 (e.g., cellulose nanofibers) derived from the biomass are dispersed in the resin portion 5 made of the cured resin. The fibrous member 7 derived from the organism and dispersed together with the abrasive grains 6 on the resin part 5 reduces the friction between the outer peripheral part 4 and the side part 3 of the rotary blade 1A and the object to be cut do. Thus, the frictional heat generated when cutting the object to be cut by using the rotary blade is reduced. Therefore, the service life of the rotary blade can be prolonged.

In the disk-shaped rotary blade 1A according to the first embodiment, the ratio (blending ratio) of the fibrous member 7 is preferably 0.5 volume% or more. The effect of reducing the friction between the outer peripheral portion 4 and the side surface portion 3 of the disk-shaped rotary blade 1A and the object to be cut begins to occur due to the inclusion of the fibrous member 7 at a blending ratio of about 0.5 volume% . It is presumed that this effect is caused by the inclusion of the fibrous member 7 having high hydrophilicity in the rotary blade 1A. The presumed contents of the present application do not affect the interpretation of the scope of right.

In the disk-shaped rotary blade 1A according to the first embodiment, it is further preferable that the blending ratio of the fibrous member 7 is 3 vol% or more. This is because the effect of increasing the mechanical strength of the disk-shaped rotary blade 1A is remarkable because the fibrous member 7 is included at a blending ratio of about 3 volume%. By making the composite material including the cellulose nanofiber, the mechanical strength is improved.

In the disk-shaped rotary blade 1A according to the first embodiment, it is preferable that the blend ratio of the fibrous member 7 is 30% by volume or less. According to the manufacturing method (to be described later) of the disk-shaped rotary blade 1A, when the blend ratio of the fibrous member 7 exceeds 30% by volume, the abrasive grains 6, the fibrous member 7 derived from the bio- This is because it is difficult to stir and knead the material. The above-mentioned resin material is a raw material of the cured resin constituting the resin part (5). This resin material exhibits powdery, granular or liquid form at room temperature. The phrase &quot; indicates a liquid phase at room temperature &quot; means having fluidity at room temperature and does not require high viscosity.

According to the disk-shaped rotary blade 1A of the first embodiment, the following effects can be obtained. First, the fibrous member 7 having hydrophilicity and originating from the organism dispersed together with the abrasive grains 6 on the resin part 5 is sandwiched between the surface near the surface of the outer peripheral part 4 of the rotary blade 1A and the surface- Moisture can be easily maintained near the surface of the side surface portion 3. The moisture retained in the vicinity of these surfaces reduces the friction between the surface of the outer peripheral portion 4 of the rotary blade 1A and the surface of the side surface portion 3 and the object to be cut. As a result, the service life of the rotary blade 1A can be prolonged. In addition, since the number of revolutions of the rotary blade 1A can be increased, the efficiency of cutting the object to be cut is improved. In addition, when cutting the object to be cut by using the rotary blade 1A, the cutting quality can be kept good. These effects are further enhanced by using the vegetable fibrous member 7 having high hydrophilicity (for example, cellulose nanofiber).

Secondly, the disk-shaped rotary blade 1A includes the fibrous member 7 derived from the bio-material, so that the mechanical strength, for example, the elastic modulus, the bending strength, the tensile strength, etc. of the rotary blade 1A increases. Due to this, when the plate-like member is cut using the rotary blade 1A, vibration, meandering, deformation, and the like of the rotary blade 1A are reduced, so that the service life of the rotary blade 1A can be extended . In addition, since the vibration, meandering, and deformation of the rotary blade 1A are suppressed, the cutting quality can be kept good.

The thickness of the rotary blade 1A can be reduced due to an increase in the mechanical strength of the rotary blade 1A. Thus, the width of the cuff kerf, which is the cutting line of the object to be cut, can be reduced. Therefore, the number (quantity) of products produced from one cutting object can be increased.

By increasing the outer diameter of the rotary blade 1A due to the increase in the mechanical strength of the rotary blade 1A, the following effects can be obtained. First, the service life of the rotary blade 1A can be prolonged. Next, since the peripheral speed of the rotary blade 1A increases, the efficiency with which the rotary blade 1A cuts the object to be cut can be improved. Next, the object to be cut having a large thickness can be completely cut (cut) in the thickness direction. Examples of the object to be cut having a large thickness include an IC for controlling an internal combustion engine, an IC for controlling an electric motor, an IC for controlling a braking system, and the like for a power control semiconductor device (IC, transistor, etc.) .

Third, since the fibrous member 7 having high hydrophilicity is included in the disk-shaped rotary blade 1A, moisture contained in the outer peripheral portion 4 and the side surface portion 3 of the rotary blade 1A is increased do. Therefore, frictional heat generated between the surface of the outer peripheral portion 4 of the rotary blade 1A and the surface of the side surface portion 3 and the object to be cut can be reduced. In addition, since the effect of cooling the rotary blade 1A and the object to be cut is improved by this moisture, the accumulation of heat due to machining can be reduced. Due to these, it is possible to prolong the service life of the rotary blade 1A when the plate-like member is cut using the rotary blade 1A. In addition, the cutting quality can be maintained satisfactorily.

Fourthly, by including the fibrous member 7 in the disk-shaped rotary blade 1A, the rotary blade 1A cuts the object to be cut so that the surface of the outer peripheral portion 4 of the rotary blade 1A and the surface A plurality of the fibrous members 7 (including a part of the fibrous members 7) are sequentially dropped off. In the case of using the vegetable fibrous member 7 having high hydrophilicity, it is presumed that the lumpy portion including the plurality of fibrous members 7 and the resin portion 5 entangled may fall off. As a result, the new abrasive grains 6 are easily exposed on the surface of the outer peripheral portion 4 and the surface of the side surface portion 3. Therefore, since the new abrasive grains 6 tend to contribute to the cutting instead of the abraded abrasive grains 6, the efficiency of cutting the object to be cut is improved. In addition, when cutting the plate-like member using the rotary blade 1A, the cutting quality can be maintained favorably.

(Example 2)

A method of manufacturing a disk-shaped rotary blade for manufacturing the disk-shaped rotary blade 1A according to the first embodiment of the present invention will be described with reference to FIG. 1 (b) and FIG. The production conditions described in the present application are merely examples. The manufacturing conditions in the manufacturing method of the disk-shaped rotary blade are not limited to the manufacturing conditions described in the present application document.

First, the abrasive grains 6 shown in Fig. 1 (b), the fibrous members (e.g., cellulose nanofibers) 7, and the resin materials are prepared. If necessary, other additives including aggregate (8) and the like are prepared. The resin material preferably exhibits a powdery, granular or liquid phase at room temperature. The resin material is a thermosetting resin containing, for example, phenol resin, epoxy resin, polyimide resin, etc. as a main material as a synthetic resin.

Next, the abrasive grains 6, the fibrous member 7, the aggregate 8, and other additives and resin materials are weighed. Each of the weighed abrasive grains 6, the fibrous member 7, the aggregate 8, and other additives and resin materials are crushed and mixed using a grinding machine. Thereafter, these materials are kneaded while applying a shearing force to the abrasive grains 6, the fibrous member 7, other additives and the resin material using a kneader. Thereby, the abrasive grains 6, the fibrous member 7 and other additives are dispersed in the resin material to prepare a mixed material. The mixed material is dried at room temperature. Thereafter, the plate-shaped mixed material is produced by rolling the mixed material. In order to carry out proper rolling, the hardness of the kneaded product may be adjusted by appropriately adding a solvent such as alcohol to the kneaded material (kneaded product), further kneading the kneaded product, and appropriately drying the kneaded product.

Next, the plate-like mixed material 9A is produced by punching the plate-like mixed material with the circular holes 2 shown in Figs. 2A and 2B. 2 (a) and 2 (b) show a plan view and a front view, respectively, of the disk-shaped mixed material 9A. The disc-shaped mixed material 9A has a round hole 2, a side surface portion 3 and an outer peripheral portion 4. The disc-shaped mixed material 9B has a different component from the mixed material 9A as the raw material of the disc-shaped rotary blade 1B according to another embodiment (described later) of the present invention.

Next, as shown in Fig. 2 (c), a set of molding molds 10 are prepared. The forming mold 10 has a lower mold 11 and an upper mold 12. The material for forming the molding die 10 may be a metal-based material such as a tool steel or a ceramics-based material. The forming mold 10 may be formed by coating a ceramic material based on yttrium oxide (Y ₂ O ₃ ) on a base material made of a metal-based material or a ceramics-based material.

In the lower mold 11, a concave portion 13 in which a disc-shaped mixed material 9A is accommodated is formed. An upward convex portion 14 corresponding to the round hole 2 of the mixed material 9A is formed on the inner bottom surface of the lower mold 11 constituting the bottom of the concave portion 13 of the lower mold 11 do. Downward convex portions 15 corresponding to the planar shape of the mixed material 9A are formed on the bottom surface (bottom surface) of the upper mold 12.

Next, as shown in Fig. 2 (c), the disk-shaped mixed material 9A is accommodated in the molding die 10. Fig. 2 (c) shows an example in which two disc-shaped mixed materials 9A are accommodated in the molding die 10. Fig. A plurality of disc-shaped mixed materials 9A may be accommodated in the depth direction of the drawing (for example, three per one row along the depth direction of the drawing). In this case, 6 (= 2 x 3) disk-shaped rotary blades 1A can be collectively manufactured by a single molding step using one set of the molding die 10. It is possible to increase the number that can be produced collectively by one molding step.

Next, the lower mold 11 and the upper mold 12 are engaged from the state shown in Fig. 2 (c). The disk-shaped mixed material 9A is a mixture of the inner bottom surface of the lower mold 11 in the concave portion 13 and the lower convex portion 15 of the upper mold 12, And is sandwiched by the lower surface.

Next, the heating furnace 16 shown in Fig. 2 (d) is prepared. The construction of the heating furnace 16 will be described below.

The heating furnace 16 has an outer frame portion 17 and a heating portion 18. In addition, the heating furnace 16 has a pedestal 19 on which the forming mold 10 is placed, a supporting portion 20 for supporting the base 19, and a lift portion 21 for lifting the supporting portion 20 . The receptacle 19 is preferably made of a material having a high thermal conductivity (for example, a metal-based material). The support portion 20 is preferably made of a material having a low thermal conductivity (for example, a cementitious material). The heating section 18 is provided with a plurality of heaters 22. Fig. 2 (d) shows a plurality of tubular heaters 22 as an example. As the heater 22, a heater using electromagnetic induction heating may be used.

The heating section 18 has a lid-like shape having an opening 23 at the bottom. It is preferable that a shutter (not shown) for opening and closing the opening 23 is provided in the heating furnace 16. The pedestal 19 supported by the support portion 20 moves forward and backward with respect to the internal space of the heating portion 18 via the opening 23 of the heating portion 18 as the lifting portion 21 moves up and down.

Next, in the heating furnace 16 shown in FIG. 2 (d), the elevation portion 21 is lowered to place the pedestal 19 and the support portion 20 below the opening 23. By supplying electric power to the plurality of heaters 22, the internal space of the heating unit 18 is heated to a predetermined temperature (for example, 150 ° C to 160 ° C).

Next, as shown in Fig. 2 (d), the heating furnace 16 receives the forming mold 10 containing two disc-shaped mixed materials 9A. Concretely, first, the molding die 10 in which the two disc-shaped mixed materials 9A are accommodated is placed on the pedestal 19 supported by the supporting portion 20. [

2 (d), the molding die 10 is introduced into the internal space of the heating section 18 by using the elevating section 21, and the molding die 10 is heated by the heating section To the upper member (24) of the base (18). The molding die 10 is pressed against the upper member 24 of the heating section 18 at a constant pressure by using the elevating section 21 and the state is maintained. The heat generated by the heating section 18 is transferred to the two disk-shaped mixed materials 9A via the molding die 10. [ In this state, the two disc-shaped mixed materials 9A are heated by a predetermined temperature (for example, 155 DEG C) while being pressurized by a predetermined pressure (for example, 800 kgf / cm2). In a series of processes, the pedestal 19 functions as a heat conduction member, and the support 20 functions as a heat insulating member.

Next, the state shown in Fig. 2 (d) is maintained for a predetermined time (for example, 3 to 5 minutes) under a predetermined temperature (for example, 155 占 폚). As a result, the resin material contained in the two disk-shaped mixed materials 9A is cured to form the resin part 5 (see Fig. 1 (b)) made of the cured resin.

2 (d), the elevation portion 21 is used to take out the molding die 10 from the inner space of the heating portion 18 to the lower side of the heating portion 18. As shown in Fig. And the removed molding die 10 is transferred to a processing chamber (not shown). The treatment chamber may be provided inside the heating furnace 16 or may be provided outside the heating furnace 16.

Next, the molding die 10 containing two disk-like mixed materials 9A is left for a predetermined time under a constant atmosphere at a suitable treatment temperature of 200 DEG C or lower. For example, the forming mold 10 is left for two hours at a temperature of 180 DEG C and then for one hour at a temperature of 200 DEG C. By performing the heat treatment (post-curing) in this manner, the curing reaction in which the resin material contained in the disc-shaped mixed material 9A is cured sufficiently progresses. The resin material contained in the disk-shaped mixed material 9A is cured and the cured resin is molded, whereby the disk-shaped rotary blade 1A (see FIG. 2 (e)) is produced.

As the atmosphere in the heat treatment, the following atmosphere is employed. When the processing temperature is included in the temperature range where the resin material constituting the resin part (cured resin) 5 (see FIG. 1 (b)) deteriorates, the atmosphere of an inert gas (for example, nitrogen gas) ) Is employed. In this case, a low-oxygen atmosphere (reduced-pressure atmosphere) may be employed. When the processing temperature is not included in the temperature range where the resin material constituting the resin part 5 deteriorates, an atmospheric atmosphere is employed.

Next, the molding die 10 in which the two disk-shaped rotary blades 1A are accommodated is taken out from the processing chamber and left. Thereby, the forming die 10 and the two disk-shaped rotary blades 1A accommodated in the forming die 10 are naturally cooled. A cooling low-temperature gas may be blown to the molding die 10 outside the processing chamber. Thereby, the forming die 10 and the two disk-shaped rotary blades 1A accommodated in the forming mold 10 can be forcedly cooled. Therefore, the time for manufacturing the disk-shaped rotary blade 1A can be shortened.

Next, as shown in Fig. 2 (e), the lower mold 11 and the upper mold 12 are opened. The two disk-shaped rotary blades 1A are taken out from the two concave portions 13 formed in the lower mold 11. If necessary, each of the disk-shaped rotary blades 1A may be subjected to finishing (mechanical processing such as polishing or grinding). For example, the peripheral portion 4 and the inner peripheral portion (the outer portion of the round hole 2) of the disk-shaped rotary blade 1A shown in FIG. 2 (e) are machined using a lathe, a grinder or the like. By the steps so far, the two disk-shaped rotary blades 1A are finally completed.

According to the manufacturing method of the disk-shaped rotary blade according to the second embodiment, the disk-shaped rotary blade 1A according to the first embodiment can be manufactured. By adopting a configuration in which a plurality of molding dies 10 are provided, a plurality of disk-shaped rotary blades 1A can be collectively manufactured by a single molding step.

The elevating portion 21 which is moved forward and backward with respect to the internal space of the heating portion 18 via the opening 23 of the heating portion 18 is provided in the heating furnace 16. This makes it possible to automate the step of heating while pressurizing in the case of manufacturing the disk-shaped rotary blades 1A. These effects are the same in other embodiments according to the manufacturing method of the disk-shaped rotary blades.

In the manufacturing method of the disk-shaped rotary blade according to the second embodiment, the disk-shaped mixed material 9A having the round holes 2 was used. Instead, a disk-shaped mixed material having no round holes 2 may be used. In this case, the cured circular disk-shaped molded article is machined by heating while being pressurized to form round holes 2. This also applies to other embodiments.

(Example 3)

The overall structure of the disk-shaped rotary blade 1B according to the third embodiment of the present invention is the same as the overall structure of the disk-shaped rotary blade 1A according to the first embodiment. Therefore, the description of the overall structure of the disk-shaped rotary blade 1B is omitted.

The microstructure of the disk-shaped rotary blade 1B will be described with reference to Fig. 1 (c). 1 (c), the disk-shaped rotary blade 1B includes a resin portion 5 made of a cured resin, abrasive grains 6, a fibrous member 7 (for example, Cellulose nanofibers), and aggregate 8. [0035] The disk-shaped rotary blade 1B is the same as the disk-shaped rotary blade 1A in that it is a kind of material constituting the disk-shaped rotary blade 1B.

In the disk-shaped rotary blade 1B, it is preferable that the proportion (blending ratio) of the fibrous member 7 exceeds 30% by volume. In the case of using a mixed material in which the blend ratio of the fibrous member 7 is 30 vol% or less, the abrasive grains 6 and the fibrous member 7 are dispersed in the solvent This is because it is difficult to manufacture a disk-shaped dispersion material by moving the dispersion material.

In the disk-shaped rotary blade 1B, it is preferable that the blend ratio of the fibrous member 7 is 80% by volume or less. When the blend ratio of the fibrous member 7 exceeds 80 vol%, the compounding ratio of the abrasive grains 6 contained in the disk-shaped rotary blades decreases. Therefore, the efficiency with which the rotary blade 1B cuts the object to be cut decreases, which is not preferable.

According to the disk-shaped rotary blade 1B according to the third embodiment, the same effect as the disk-shaped rotary blade 1A can be obtained. Incidentally, from the following reason, each effect obtained by the disk-shaped rotary blade 1B is larger than each effect obtained by the disk-shaped rotary blade 1A. In the disk-shaped rotary blade 1B, the compounding ratio of the fibrous member 7 is more than 30 volume% and not more than 80 volume%. In the disk-shaped rotary blade 1A, the blending ratio of the fibrous member 7 is 0.5 volume% or more and 30 volume% or less. The rotary blade 1B has a large value as a blend ratio of the fibrous member 7 as compared with the rotary blade 1A. Therefore, each effect obtained by the disk-shaped rotary blade 1B is larger than each effect obtained by the disk-shaped rotary blade 1A.

(Example 4)

A manufacturing method of the disk-shaped rotary blade for manufacturing the disk-shaped rotary blade 1B according to the third embodiment of the present invention will be described with reference to FIG. 1 (c) and FIG. Examples of the steps of preparation of the abrasive grains 6, the fibrous members (e.g., the cellulose nanofibers) 7, the aggregates 8, and the resin material from the biomass, .

Next, the abrasive grains 6, the fibrous member 7, and the aggregate 8 are dissolved in a solvent to prepare a dispersion material. In other words, a material other than a resin material is dissolved in a solvent to prepare a dispersion material. As the solvent, a water-based solvent, an alcohol-based solvent, or the like is used. As a material to be dissolved in a solvent, a binder and a dispersant may be added, or a small amount of a powdery resin material may be added. In the dispersed material produced, it is preferable that the proportion (blending ratio) of the fibrous member 7 is more than 30% by volume and 80% by volume or less. In the fabricated dispersing material, the fibers of the fibrous member 7 are entangled with the material of the abrasive grains 6, the aggregate 8, and the binder.

Next, the fabricated dispersion material is floated. In this process, a machine having the same function as a paper-making machine (paper machine) is used. Thus, the dispersing material is formed into a circular shape. The circularly shaped dispersed material is dried to produce a disk-shaped dispersed material.

Next, using a resin impregnator, a disk-shaped dispersion material is impregnated with a fluid resin (a resin material having fluidity). In this step, it is preferable to reduce the space containing the disk-shaped dispersing material. Thus, a disc-shaped dispersing material is impregnated with a fluid resin to produce a disc-shaped mixed material.

Next, as shown in Fig. 2 (c), the disc-shaped mixed material 9B is accommodated in the molding die 10. Since the following steps are the same as those described in the second embodiment, the description of these steps is omitted.

According to the manufacturing method of the disk-shaped rotary blade according to the fourth embodiment, the disk-shaped rotary blade 1B according to the third embodiment can be manufactured. In addition, the same effect as the effect of the manufacturing method of the disk-shaped rotary blade according to the second embodiment can be obtained.

(Example 5)

Referring to Fig. 3, a cutting apparatus according to a fifth embodiment of the present invention will be described. The cutting apparatus 25 shown in Fig. 3 has at least a receiving module 26, a cutting module 27, and a discharging module 28. Fig. The receiving module 26, the cutting module 27, and the discharging module 28 are fixed to each other along the X direction shown in Fig. 3 (a).

The receiving module 26 and the cutting module 27 can be attached and detached. The cutting module 27 and the discharge module 28 can be attached and detached. A separate cutting module can be attached to or detached from the cutting module 27. Therefore, first, a separate cutting module can be attached and detached between the receiving module 26 and the cutting module 27. [ Secondly, a separate cutting module can be attached and detached between the cutting module 27 and the discharge module 28.

The receiving module 26 receives the object to be cut 29 from the outside of the cutting device 25. The cutting module 27 cuts the object 29 received from the receiving module 26. The cutting module 27 can perform both of cutting the object to be cut 29 partially in the thickness direction (half cut) and cutting the object 29 completely in the thickness direction (full cut).

The discharge module 28 receives the product group 30 which is an aggregate of the manufactured products P from the cutting module 27 by cutting the object 29 to be cut. The product group 30 is accommodated in the tray 31. Fig. The tray 31 containing the product group 30 is discharged to the outside of the cutting device 25. The discharging module 28 may be provided with a camera 32 for optically inspecting each product P. [

The cutting module 27 has a spindle (rotating mechanism) 33. The spindle 33 has a servomotor 35 having a rotation shaft 34. Either the disk-shaped rotary blade 1A or the disk-shaped rotary blade 1B is attached to the rotary shaft 34. [ The rotary blades 1A, 1B rotate in the plane including the Y direction and the Z direction in the drawing.

The cutting module 27 has a stage (fixing mechanism) 36 as a pedestal to which the object to be cut 29 is fixed. As an example of means for temporarily holding the object 29 to be cut, an adhesive sheet adhered to the upper surface of the stage 36 is employed.

The cutting module 27 has a rotary part 37 that relatively moves (rotates) the stage 36 and the spindle 33. The stage 36 is attached to the rotation portion 37. [ A motor (not shown) made of, for example, a servo motor is provided below the rotating portion 37. And the rotating portion 37 is fixed to the rotating shaft of the motor. As the servomotor rotates, the stage 36 attached to the rotating portion 37 rotates in the? Direction.

The cutting module 27 has a moving mechanism 38 for relatively moving the stage 36 and the spindle 33. The cutting module 27 has a servo motor 39, a ball screw 40 connected to the rotary shaft of the servo motor, and a ball nut (not shown) fitted into the ball screw 40. A moving mechanism 38 is attached to the ball nut. By driving the servo motor, the stage 36 moves along the Y direction. It is possible to relatively move the stage 36 and the spindle 33 along the X direction and the Z direction by providing the same moving mechanism (not shown) as the moving mechanism 34. [

The cutting apparatus 25 has a control unit CTL. The control unit CTL is installed in the receiving module 26. [ The control unit CTL may be installed in another module. The control unit CTL controls at least the rotational direction and the rotational speed of the disk-shaped rotary blade 1A or the disk-shaped rotary blade 1B and the relative moving direction and the moving speed of the stage 36 and the spindle 33 Rotation, which is the same hereinafter).

Between the receiving module 26 and the cutting module 27 or between the cutting module 27 and the discharging module 28, a function module having a specific function can be attached and detached. Specific functions include, for example, cleaning, drying, measurement and inspection of the product (P) in addition to the above-described cutting. The specific function may be grinding (grinding) for the object 29 before cutting or the product group 30, which is an aggregate of the objects to be cut (the product P). The function module can execute at least one of the plurality of functions. The receiving module 26, the cutting module 27 and the ejecting module 28 are also included in the function module.

The specific function may be a cutting function using other than the disk-shaped rotary blades 1A and 1B. By using the cutting mechanism having these cutting functions, for example, it is possible to perform cutting by water jet, cutting by blast using abrasive grain, cutting using a wire saw, cutting with laser light, and the like. By combining these cutting mechanisms with the disk-shaped rotary blades 1A, 1B, the object to be cut 29 can be cut along a line obtained by combining a line segment and a curve. Such cutting is useful when manufacturing a product having a shape in which a line segment and a curve are combined, such as an SD memory card.

Fig. 3 (b) shows a functional module 41 having a cleaning function and a drying function. Preferably, the functional module 41 is inserted between the cutting module 27 and the discharge module 28 and mounted.

The functional module 41 has a cleaning and drying mechanism 42. The cleaning and drying mechanism 42 has a cleaning section 43 and a drying section 44. The cleaning portion 43 is provided with a cleaning liquid injection mechanism for spraying the cleaning liquid. The cleaning section 43 may be provided with a scrub mechanism that rubs the upper surface of the product group using a sponge containing a cleaning liquid. The cleaning section 43 may be provided with a jetting mechanism and a scrub mechanism. The drying section 44 is provided with a gas injection mechanism for injecting a clean gas. The function module 41 shown in Fig. 3 (b) has a cleaning function by the cleaning part 43 and a drying function by the drying part 44, and an inspection function by the camera 32. Fig.

In Fig. 3 (c), a functional module 45 having a grinding (polishing) function is shown. The function module 45 is inserted and mounted between the receiving module 26 and the cutting module 27 or between the cutting module 27 and the discharging module 28. In order to shorten the cutting time in the cutting module 27, it is preferable that the function module 45 is inserted between the receiving module 26 and the cutting module 27. According to this configuration, the object to be cut 29 is cut by being cut in the cutting module 27 after it is thinned by being polished in the function module 45, and is thereby unified.

The function module 45 is provided with a grinding mechanism 46. The grinding tool 46 has a rotatable grinding wheel 47. The upper surface of the encapsulating resin of the encapsulated substrate and the upper surface of the semiconductor chip or the like can be ground using the rotating grinding stone 47 of the grinding mechanism 46. [ As a result, the product P made of an electronic component or the like can be made thin. The thickness measuring mechanism 48 may be provided on the functional module 45. [ The position of the upper surface of the encapsulating resin to be grounded and the height direction (Z direction) of the upper surface of the semiconductor chip or the like can be measured during cutting or after cutting by the displacement sensor 49 of the thickness measuring mechanism 48 . The function module 45 has a grinding function by the grinding stone 47 and a function of measuring the thickness by the displacement sensor 49 as well.

The cutting apparatus 25 according to the fifth embodiment cuts the object 29 by using either the disk-shaped rotary blade 1A or the disk-shaped rotary blade 1B. Therefore, the same effects as those described in the first embodiment can be obtained.

Incidentally, according to the cutting apparatus 25 according to the fifth embodiment, the following effects can be obtained. Firstly, after the cutting device 25 is manufactured, or after it is installed in the user's factory, a function module having a cutting function can be posteriorly added to the cutting device 25, if necessary. After the user starts using the cutting device 25, a function module having a cutting function may be added to the cutting device 25 at a later stage. Therefore, the ability to cut the object 29 in the cutting apparatus 25 can be increased afterwards.

Secondly, after the cutting device 25 is manufactured or installed in the user's factory, a function module having functions other than cutting can be added to the cutting device 25, if necessary, after the cutting. After the user starts using the cutting device 25, a function module having a function other than cutting may be added to the cutting device 25 after the fact. Therefore, functions other than the cutting operation in the cutting apparatus 25 can be added to the cutting apparatus 25 in a posterior manner.

The object to be cut 29 described in the first to fifth embodiments described above includes a circuit board on which a plurality of lattice-shaped regions each made of an electronic circuit are formed. The circuit board may be a semiconductor substrate made of silicon, silicon carbide or the like. These cutting objects have a substantially circular planar shape.

The object to be cut includes semiconductor wafers each having a plurality of lattice-like regions in which electronic circuits are formed, and semiconductor wafers whose one surface is resin-sealed. Protruding electrodes, electric wiring, and the like may be formed on one side.

The object to be cut 29 includes a plate-like member having a plurality of lattice-like regions each having a function. The plate-shaped member may be a plate-shaped member having a microlens array formed in each of a plurality of regions. The plate-shaped member may be a plate-shaped member having a light-guide plate formed on each of a plurality of regions. In these cases, the functions of each of the plurality of regions are optical functions such as light focusing, diffusion, and light guiding.

An encapsulated substrate, which is an example of the object to be cut 29, includes a circuit substrate, a plurality of chip-shaped parts mounted on a plurality of lattice-shaped areas of the circuit substrate, and a sealing resin formed in a plate- . The circuit board includes a printed board (Printed Wiring Board) made of a lead frame, a glass epoxy laminate, a copper foil polyimide film or the like made of copper, an iron-based alloy, or the like. The circuit board includes a ceramics substrate made of alumina, silicon carbide, sapphire or the like, a metal base substrate made of a metal such as copper or aluminum, a film base substrate made of a polyimide film or the like, and the like.

As the overall shape of the encapsulated substrate, which is an example of the object to be cut 29, a plate (flat plate) is typical in the case of manufacturing an IC, a surface mount transistor, a surface mount capacitor, and the like. The overall shape of the resin plug body 1 may be a shape having a plurality of protrusions functioning as a convex lens in the case of manufacturing an optical semiconductor element.

Chip components include electronic components such as chip-type semiconductor integrated circuits (ICs), optical semiconductor devices, transistors, diodes, crystal oscillators, filters, capacitors, inductors, resistors, thermistors and sensors. The chip-type component includes mechanical parts such as MEMS (Micro Electro Mechanical Systems). One chip-like part may be mounted on one area of the substrate, or a plurality of chip-like parts may be mounted. The plurality of chip-type parts mounted on one area may be the same type or different types. As the encapsulating resin, for example, a cured resin formed by curing a thermosetting resin such as an epoxy resin or a silicone resin is used.

In each embodiment, the stage 36 is moved along the X direction, Y direction and Z direction in the figure. Instead of this, the spindle 33 to which the disk-shaped rotary blades 1A, 1B are attached may be moved along the X direction, the Y direction and the Z direction in the figure. Both the stage 36 and the spindle 33 may be moved along the X direction, the Y direction, and the Z direction in the figure. According to these aspects, the stage 36 and the spindle 33 may be relatively moved along the X direction, the Y direction, and the Z direction.

The stage 36 and the spindle 33 are relatively moved along the X direction, the Y direction, and the Z direction, depending on the material constituting the object 29 or the combination of the materials constituting the object 29 You can change the speed at which you move.

The object to be cut 29 may be adsorbed on the upper surface of the stage 36 without using an adhesive tape as a method of temporarily fixing the object 29 to the stage 36. [ In this case, grooves are formed in the upper portion of the stage 36 so as to accommodate the outer peripheral portions 4 of the disk-shaped rotary blades 1A and 1B so as to overlap each boundary line as a cut portion.

In the embodiments described so far, a plant-derived fibrous member 7 containing cellulose is used as the fibrous member 7 derived from a biomolecule dispersed in a resin part 5 made of a cured resin. As the fibrous member 7 derived from a living organism, a fibrous member 7 having hydrophilicity derived from an animal can be used in place of the plant-derived fibrous member 7. In other words, in the disk-shaped rotary blades 1A, 1B, the fibrous member may be derived from an animal.

As an example of the animal-derived fibrous member 7 dispersed in the resin part 5 made of the cured resin, there can be mentioned a material containing chitin or chitosan. Chitin, chitosan is a natural polysaccharide that is included in many organisms such as crabs, shells of shrimp, organs of squid, etc. (see the web page of Sugino Machine mentioned above). The same manufacturing method as described above can produce the same rotary blades as the disk-shaped rotary blades 1A and 1B described in the first and third embodiments by using the animal-derived fibrous member 7.

The present invention is not limited to the above-described embodiments. The present invention is not limited to the above-described embodiments, and various elements may be arbitrarily combined and appropriately combined, changed, or selected as necessary within the scope of the present invention. For example, a configuration may be adopted in which two spindles (rotation mechanisms) 33 are combined with one cutting stage 27 in the cutting module 25 of the cutting device 25. [ A single cutting tool 25 is provided with a plurality of sets (for example, two sets (for example, two sets) of cutting tools 27) by combining a single spindle Set) may be provided.

1A, 1B: disk-shaped rotary blade 2: round hole
3: side portion 4:
5: resin part (hardened resin) 6: abrasive grain
7: Fiber-like member 8: Aggregate
9A, 9B: disk-shaped mixed material 10: forming mold
11: lower mold 12: upper mold
13: concave portion 14: upward convex portion
15: downward convex portion 16: heating furnace
17: outer frame part 18: heating part
19: pedestal 20: support
21: elevating part 22: heater
23: aperture 24: upper member
25: Cutting device 26: Receiving module
27: Cutting module 28: Discharge module
29: object to be cut 30: product group
31: Tray 32: Camera
33: spindle (rotating mechanism) 34: rotating shaft
35, 39: Servo motor 36: Stage (Fixing mechanism)
37: rotation part 38:
40: Ball Screw 41, 45: Function module
42: Cleaning and drying device 43: Cleaning section
44: Drying part 46: Grinding tool
47: grinding stone 48: thickness measuring instrument
49: Displacement sensor C: Center
CTL: Control P: Product

Claims (20)

A cured resin which is formed by curing the resin material,
An abrasive grains dispersed in the cured resin,
And a fibrous member derived from a biomolecule dispersed in the cured resin,
Wherein the cured resin comprises a cured resin which is formed by curing the resin material in a state where the abrasive grains and the fibrous member are dispersed in the resin material,
Wherein the cutting blade is used to cut the object to be cut. The method according to claim 1,
Wherein the ratio of the fibrous member contained in the disk-shaped rotary blade is 0.5 volume% or more and 30 volume% or less. The method according to claim 1,
Wherein a ratio of the fibrous member included in the disk-shaped rotary blade is more than 30 volume% and less than 80 volume%. The method according to claim 1,
Wherein the fibrous member is derived from a plant. 5. The method of claim 4,
Wherein the fibrous member comprises cellulose. The method according to claim 1,
Wherein the fibrous member is derived from an animal. The method according to claim 6,
Wherein the fibrous member comprises chitin or chitosan. The method according to claim 1,
Wherein the object to be cut is a plate-like member having a plurality of regions each having a function. The method according to claim 1,
Wherein the object to be cut is a circuit board on which a plurality of regions each of which an electronic circuit is formed are formed. The method according to claim 1,
Wherein the object to be cut is a circuit board in which a plurality of regions each of which is made of an electronic circuit are formed and which are resin-sealed by an encapsulating resin. A rotary shaft to which the disk-shaped rotary blade is fixed,
A rotating mechanism for rotating the rotating shaft,
A fixing mechanism for fixing the object to be cut,
And a moving mechanism for relatively moving the rotating mechanism and the fixing mechanism,
Wherein the disk-shaped rotary blade is the disk-shaped rotary blade according to any one of claims 1 to 10. 12. The method of claim 11,
Two rotation mechanisms are provided,
And a plurality of said moving mechanisms are provided. 12. The method of claim 11,
Two fixing mechanisms are provided,
And a plurality of said moving mechanisms are provided. 12. The method of claim 11,
A cutting module having at least the rotating shaft, the rotating mechanism, the fixing mechanism, and the moving mechanism;
And a control unit that controls at least an operation of the cutting module,
Wherein the cutting module is detachable with respect to another function module having a specific function,
Wherein the specific function comprises at least one of cutting, cleaning, drying, measuring, inspection and polishing. Preparing an abrasive grain;
A step of preparing a fiber-derived member derived from a biomaterial,
A step of preparing a resin material,
Dispersing at least the abrasive grains and the fibrous members in the resin material to manufacture a mixed material;
Forming a plate-like mixed material by rolling the mixed material in a state where the abrasive grains and the fibrous member are dispersed in the resin material;
A step of manufacturing a disc-shaped mixed material by punching the plate-like mixed material,
A step of filling the molding mold with the disc-shaped mixed material,
A step of forming a disk-shaped molded article by heating the disk-shaped mixed material filled in the molding die while pressing the resin material to form a hardened resin,
A step of cooling the disk-shaped molded article,
And a step of taking out a disk-shaped rotary blade made of said disk-shaped molded article from said forming mold.
Wherein the cutting blade is used for cutting an object to be cut. 16. The method of claim 15,
Wherein the ratio of the fibrous member contained in the mixed material is 0.5 volume% or more and 30 volume% or less in the step of manufacturing the mixed material. Preparing an abrasive grain;
A step of preparing a fiber-derived member derived from a biomaterial,
Preparing a resin material having fluidity;
Dispersing at least the abrasive grains and the fibrous members in a solvent to produce a dispersion material;
A step of fabricating a disk-shaped dispersion material by mobilizing the dispersion material in a state where the abrasive grains and the fibrous material are dispersed in the solvent,
Drying the disk-shaped dispersing material;
Comprising the steps of: preparing a disc-shaped mixed material by impregnating the dried disc-shaped dispersing material with the resin material;
A step of filling the molding mold with the disc-shaped mixed material,
A step of forming a disk-shaped molded article by heating the disk-shaped mixed material filled in the molding die while pressing the resin material to form a hardened resin,
A step of cooling the disk-shaped molded article,
And a step of taking out a disk-shaped rotary blade made of the disk-shaped molded article from the molding die
Wherein the cutting blade is used for cutting an object to be cut. 18. The method of claim 17,
Wherein the ratio of the fibrous member contained in the disk-shaped mixed material is set to more than 30% by volume and 80% by volume or less in the step of producing the disk-shaped mixed material. 18. The method according to claim 15 or 17,
Further comprising the step of heat treating the disk-shaped rotary blade by placing the disk-shaped rotary blade taken out from the molding die in an atmosphere of a predetermined temperature. 20. The method of claim 19,
Wherein the atmosphere at the predetermined temperature is any one of an air atmosphere, an inert atmosphere, and a low-oxygen atmosphere.

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