JPH09193022A - Electrodeposition grinding wheel and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To draw an optional fine pattern on an abrasive grain electrodeposited layer by forming electrodeposition area groups having abrasive grains at a fixed pattern and recessed area groups having no abrasive grain on the mostouter surface of a grinding wheel. SOLUTION: An electrodeposited layer 24 constituted of electrodeposition area groups 22 having abrasive grains and recessed area groups 23 having no abrasive grain is provided on the surface of a grinding wheel 21. The electrodeposition area groups 22 holding abrasive grain groups by electrsodposition metal are formed high, and the recessed area groups 23 having no abrasive grain and only electrodeposition metal are formed low. Hereby, the electrodeposited layer 24 is formed with pockets by the recessed area groups 23, and hence it can rotationally grind a workpiece 27 to be ground while containing grinding liquid 28. Further, grinding abrasive grain groups are rollingly stuck on a thin film sheet through pressure sensitive adhesive, and hence an optional and fine patterned electrodeposited abrasive grain layer can be formed.

Description

Detailed Description of the Invention

[0001]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is directed to ultra-hard abrasive grains (CBN,
The present invention relates to an electrodeposition grindstone using diamond and the like and a method for manufacturing the same.

[0002]

2. Description of the Related Art The structure of a CBN (boron nitride cubic crystal, Hv: 5000) electrodeposition grindstone as a conventional electrodeposition grindstone, its manufacturing method, and an outline during grinding are described (FIGS. 9 to 13). Here, in these drawings, reference numeral 1 is a base metal, 2 is an electrodeposition layer, 3 is an abrasive grain (CBN abrasive grain), 4 is an electrodeposited metal,
Reference numeral 5 is a mixed foreign material, 6 is a grinding liquid, 7 is a material to be ground, and 8 is a cutting powder.

<Structure of Electrodeposition Grinding Wheel> An electrodeposition grinding wheel is composed of a CBN abrasive grain 3 and an electrodeposition metal 4 (usually nickel is often used) on a base metal 1 whose outer circumference is formed into a predetermined shape. Electrodeposition layer 2 is formed (see FIGS. 9 and 1).
0). This electrodeposition layer 2 is formed as shown in FIG.
As shown in FIG. 1, it is formed over the entire area of the grindstone grinding surface.

<Conventional manufacturing method of electrodeposition grindstone (FIG. 13)> FIG.
Fig. 1 shows an abrasive grain precipitation type electrodeposition method for producing a conventional electrodeposition grindstone. In FIG. 13, reference numeral 9 is an electrolytic cell, 10 is an electrolytic solution, 11 is an electric stirring propeller, 12 is a motor, 13 is a Ni electrode, and 14 is a DC power source. As shown in FIG.
Electrolytic solution 10 in electrolytic bath 9 (in the case of Ni electrodeposition, an aqueous solution containing nickel sulfate (NiSO ₄ ) as a main component) is charged with abrasive abrasive grains (CBN abrasive grains) 3 having a predetermined particle diameter, and the electric power is supplied. The stirrer propeller 11 is used to uniformly suspend the suspension. On the other hand, the cathode of the DC power supply 14 is connected to the whetstone base 1a rotated at a constant speed, and the anode of the DC power supply 14 is connected to the Ni electrode 13 for the purpose of supplying electrodeposited metal (Ni). This is a method of energizing to capture the periphery of the CBN abrasive grain layer settled / deposited on the base metal 1a with an electrodeposited metal.

<Conditions during grinding of a conventional electrodeposition grindstone (Fig. 1
0, FIG. 12)> As shown in FIG. 12, while the material to be ground (workpiece) 7 is being ground with the CBN electrodeposition layer 2 obtained above at the feed amount Δh, as shown in FIG. Chips 8 bit between 3 and 3 and are clogged. Also, the layer of electrodeposited metal 4 has a lower hardness than the abrasive grains 3, and therefore wears during long-term use.
In extreme cases, the abrasive grains 3 may fall off.
Further, the grinding fluid 6 for the purpose of lubrication and cooling does not easily penetrate into the grinding interface between the work material 7 and the CBN electrodeposition layer 2 during grinding.

[0006]

The problems peculiar to the prior art will be described below.

An arbitrary fine pattern cannot be drawn on the abrasive grain electrodeposition layer 2. As shown in FIG. 13, since the particle settling type electrodeposition is performed in the conventional method, the abrasive grain electrodeposition layer 2 is formed on the entire surface (see FIG. 11). It is possible to draw a pattern by masking, but only a coarse pattern can be drawn, and a great number of man-hours are required.

There are restrictions on the shape of the base metal that can be electrodeposited. As shown in FIG. 13, in the shape of the whetstone base metal 1a, a fairly uniform abrasive grain electrodeposition layer can be formed by the rotation of the base metal, but the whetstone base metal 1b has only one side, and the whetstone base metal 1c has both sides. It becomes impossible. In addition, with respect to the mountain-shaped base metal 1 as shown in FIG. 9B, the CBN abrasive grains are less deposited on the crests, and the abrasive grains are deposited thicker on the skirts, resulting in uneven grains. It becomes the electrodeposition layer 2. This is due to the use of the particle sedimentation type electrodeposition method.

There are many expensive abrasive grain losses, and the manufacturing cost becomes high. As shown in FIG. 13, the conventional manufacturing method is a particle sedimentation type electrodeposition method. Therefore, when cleaning the electrodeposition tank 9 such as changing the abrasive grain size or removing sludge 15, the electrolytic solution 10 may be replaced or meshed. Grindstone loss occurs. Also, electrolyte 1
In order to require a predetermined abrasive grain density (the number of abrasive grains in a unit volume), the number of abrasive grains required for electrodeposition on the base metal is several tens of times or more in the electrodeposition tank. Need to throw in. Therefore, the initial cost of the abrasive grains becomes high.

Productivity is low. The convection and flow velocity of the electrolyte solution 10 are used for electrodeposition as well as sedimentation and deposition of abrasive grains on the base metal.
It takes time to determine the construction conditions depending on the presence or absence of turbulence depending on the shape of the object to be processed, its strength, etc., and productivity tends to decrease.

The abrasive grain distribution becomes non-uniform. Since the abrasive grains are suspended and settled by stirring and convection of the electrolytic solution, the abrasive grains having a wide range of grain sizes are deposited, and the nonwoven fabric having the electrodeposition abrasive grain size becomes uniform. That is, as shown in FIG. 10, the abrasive grains 3 are large and small, and in order to avoid this, an electrodeposition tank is provided for each division of the grain size range, but the equipment cost becomes expensive. In addition, as described above, the stirred electrolyte solution 1
When 0, turbulent flow is generated on the surface of the base metal of various shapes and sizes, resulting in non-uniform flow velocity distribution and non-uniform distribution of deposited abrasive grains on the surface of the base metal.

Quality deterioration easily occurs. As shown in FIG. 13, the precipitated sludge 1 was stirred in the electrolyte solution 10 which was stirred and convected.
The foreign matter 5 in 5 rises, and the foreign matter 5 is also electrodeposited as shown in FIG.

The life is short. The foreign matter 5 (dust, rust, etc.) is softer than the abrasive grains 3 and is easily worn and removed, and the electrodeposited metal 4 is deformed (likely, alveolar pyorrhea) and the normal abrasive grains 3 are removed.
Will also fall out. Further, as shown in FIG. 12, it is difficult to supply the grinding liquid 6 to the interface with the work 7 during grinding, and clogging, overheating, and the like may cause the abrasive grains to fall off and shorten the life. Further, the abrasive grain catcher is an electrodeposited metal simple substance, and is easily worn during grinding and easily causes the abrasive grains to fall off.

[0014]

Means for Solving the Problems An electrodeposition grindstone according to the present invention for solving the above-mentioned problems is an electrodeposition grindstone including a base metal, abrasive grains, and an electrodeposition metal layer for solidly lapping the abrasive grains on the base metal. The invention is characterized in that an outermost surface of a grindstone having a grinding action is formed with an electrodeposition layer consisting of an electrodeposition region group having abrasive grains in a predetermined pattern and a recessed region group not having abrasive grains. It is a thing.

In the above electrodeposition grindstone, the electrodeposition region group having the above-mentioned abrasive grains interposes fine abrasive grains in a gap between the abrasive grains having a predetermined particle diameter for the purpose of grinding, and the fine abrasive grains cause the abrasive grains to move. It is characterized in that the group is solidly beaten on the electrodeposition layer.

In the above method for producing an electrodeposition grindstone, a pressure-sensitive adhesive having solubility and conductivity in an electrolytic solution is applied in advance on the surface of a thin film body having permeability to the electrolytic solution, and then applied. In addition, prepare a transfer body with abrasive grains adhered in a predetermined pattern, and cut the mold material cut out from the transfer body into a predetermined shape and size,
After sticking on the whetstone base metal, dip it in the electrolytic bath,
The cathode of the DC power source is connected to the base metal, and the anode is connected to the electrode for electrodeposited metal in the electrolytic cell to perform electrodeposition.

In the above-mentioned manufacturing method, a pressure-sensitive adhesive having solubility and conductivity in the electrolyte solution is printed and applied in a predetermined pattern on the surface of the thin film body having permeability to the electrolyte solution in advance and ground. Prepare a transfer body in which the abrasive grains for adhesion are adhered only on a predetermined pattern, and a medium in which fine abrasive grains are suspended in the diluent of the adhesive is applied, and the transfer body is formed into a predetermined shape and size. After sticking the cut mold material on the grinding stone base metal, soak it in the electrolytic bath, connect the cathode of the DC power supply to the base metal, and connect the anode to the electrode for electrodeposited metal in the electrolytic bath and electrodeposition It is characterized by performing.

[0018]

Embodiments of the present invention will be described below.

[Embodiment 1] As a constitution of an electrodeposition grindstone, in the outermost surface of the grindstone having a grinding action, as shown in the patterns of FIG. 1 and FIG. Adhesion region group 22 and recessed region group 2 having no abrasive grains
An electrodeposition layer 24 composed of 3 and 3 is provided.
As shown in FIGS. 3 (a) and 3 (b) showing the cross section of the electrodeposition grindstone, the electrodeposition region group 22 in which the group of abrasive grains 25 is held by the electrodeposited metal 26 is formed high and the abrasive grains are The recessed region group 23 formed only of the electrodeposited metal 26 having no groove is formed low, and the whetstone as a whole has an uneven shape.

[Operation-1] The above-mentioned operation 1 causes the following operation (see FIGS. 1, 2 and 3). As shown in FIG. 1, the electrodeposition region group 22 having abrasive grains containing the abrasive grains 25 for grinding protrudes thicker than the recessed region group 23 containing no abrasive grains. Therefore, since the pocket portion is formed in the electrodeposition layer 24 by the recessed region group 23 that does not contain abrasive grains, it is possible to perform rotary grinding while grinding the work material 27 while the grinding liquid 28 is contained therein. I can. On the other hand, the water pressure in the pocket is sent with the high-speed rotational force of the grindstone, and the pulsation of high pressure and open (atmospheric pressure) is repeated due to the cutting. Therefore, the effect of cooling the abrasive grains, the electrodeposition layer, the base metal, and the surface to be cut is enhanced, and the cutting that is clogged between the abrasive grains is as shown in FIG.
By appropriately adopting the various patterns shown in (a) to (f), they are jetted and removed by the grinding water jetted at high pressure. Further, the cooling effect reduces the temperature difference between the base metal and the electrodeposition layer, that is, the difference in thermal expansion, and prevents the electrodeposition layer from peeling.

The various patterns of the electrodeposition layer 24 shown in FIGS. 2 (a) to 2 (f) above are examples, and the present invention is not limited thereto.

[Embodiment 2] As the electrodeposition grindstone, in the electrodeposition grindstone of the above-mentioned first embodiment, at least abrasive grains 25 for the purpose of grinding are provided as shown in FIGS. In the intergranular gap of the abrasive grain group 25 of the electrodeposition region group 22, the fine grain abrasive grains 29 are interposed in the electrodeposited metal 26 to solidify the abrasive grain group 25.

[Operation-2] By adopting the above means 2, as shown in FIGS. 3 (c) and 3 (d), the abrasive grains 25 are added to the layer formed of the electrodeposited metal 26 between the abrasive grains 25. By forming an electrodeposition layer containing extremely fine abrasive grains (ultra-hard particles) 29, the electrodeposition layer becomes harder than the electrodeposition layer of FIGS. 3 (a) and 3 (b) described above, and wear resistance is improved. It is possible to prevent the abrasive grains 25 from falling off.

[Embodiment-3] As a method for producing the above electrodeposition pattern, a transfer method is used in advance, that is, ultra-hard abrasive grains are adhered in the above pattern on a thin film sheet via an adhesive,
If necessary, the interparticle voids should be replenished with a graining agent or an adhesive containing ultra-hard abrasive fine particles. This thin film sheet with ultra-hard abrasive grains is attached to a base metal, and the ultra-hard abrasive grain pattern on the thin film sheet is transferred and picked up on the base metal by electrodeposition.

[Action-3] The action of the means 3 will be described with reference to FIGS. 4 (a) to 4 (d) and FIGS. 5 (a) and 5 (b). An adhesive 31a corresponding to a predetermined fine pattern shown in FIG. 2 is applied on the thin film sheet 30 in advance by a printing method or the like to form a thin film sheet having a region 22 in which the abrasive grains 25 exist and a region 23 in which the abrasive grains 25 do not exist. Yes (Figure 4
(See (a) and (b)). The adhesive solution 31a in which the fine particles 29 are suspended is sprayed by a spray gun or the like on the patterned thin film sheet with abrasive grains 30 obtained in step 1, so that the fine particles 29 are contained in the gaps between the grinding particles 25. A patterned thin film sheet with abrasive grains filled with the agent 31b can be formed (FIG. 4).
(C)). The thin film sheet with the patterned abrasive grains obtained in step 2
1 (see FIG. 4 (d)), and in the electrodeposition tank described later (see FIGS. 5 (a) and 6), the adhesive 31
By substituting (31a, 31b) with the electrodeposited metal 26, the grinding abrasive grains 25 and the fine particles 29 can be solidly beaten on the base metal 21 (see FIG. 5B).

[Embodiment-4] The thin film sheet material 30
As the material, a material that is infiltrating and permeable to the electrolytic solution, for example, cloth, non-woven fabric, Japanese paper, felt, filter paper, etc. should be used. Moreover, it has solubility and conductivity in an electrolytic solution as an adhesive.

[Operation-4] By means of the above means 4, cloth, non-woven fabric, Japanese paper, filter paper, felt or the like is used as the thin film sheet material 30, and the electrolytic solution infiltrates and permeates through it. The ions of the electrodeposited metal and the dissolved pressure sensitive adhesive component pass through and pass through the grinding abrasive grains 25 and the fine particles 2
9 cannot pass. Further, since the adhesive 31 has solubility and conductivity in the electrolytic solution, the thin film sheet 30
And elutes and is replaced with the electrodeposited metal 26 (see FIGS. 5A and 5B).

[0028]

EXAMPLE An example of producing an electrodeposition grindstone based on the method of the present invention will be described below.

[Example-1] The following members necessary for producing an electrodeposition grindstone were prepared. 1 Abrasive grain ... Grinding grain: CBN, grain size: 120 ± 10 μm 2 Thin film sheet ... Synthetic woven non-woven fabric, long tape of 0.3 ^t × 5.0 ^w mm, with one side of the following [3] adhesive in advance The agent is applied over the entire surface in advance to form a roll (see reference numeral 47 in FIG. 7). 3 Adhesive ... Amilodextrin (paste) and bittern (M
gSO ₄ , MgCl ₂ , NaCl, KCl, etc.)
It was used. 4 Abrasive grain layer pattern: FIG. 2 (f) was used. 5 Grindstone base metal… Material: Quenched and tempered to JIS G4014 SCM415, HRc: 54. Shape: Angle grindstone shown in Fig. 9 (a), (b) Dimensions: Maximum outer diameter 150φ mm, Width: 15 ^w mm 6 Fabrication of thin film sheet with 6 CBN abrasive grains.

FIG. 7 shows an example of a method for producing the thin film sheet with patterned abrasive grains used in this embodiment. In the figure, reference numeral 41
Is a roller, 42 is an endless belt, 43 is an etching groove, 4
4 is a hopper nozzle, 45 is a doctor blade, 46,
48 and 49 are rolls, 47 is a thin film sheet with a single-sided adhesive,
Reference numeral 50 is a release paper, and 51 is a thin film sheet roll on which an adhesive is printed in a pattern. As shown in FIG. 7, first, a stainless steel thin plate of SUS304L having a thickness of 0.8 ^t mm × 52.0 ^w mm is etched by a pattern shown in FIG. 4 (f) to a depth of 0.15 mm (by photo-etching technique). After the formation, the endless belt 42 is formed, wound around the rolls 41, 41 and driven, the grinding abrasive grains 25 are supplied from the hopper nozzle 44, and the abrasive grains 2 are applied only to the etching groove 43 by the doctor blade 45.
Fill 5 Next, the abrasive grains were transferred onto the adhesive of the single-sided adhesive-attached thin film sheet 47 supplied via the pressing rubber roll 46. Next, the release paper 50 is inserted on the transfer abrasive grain surface via the roll 49, and wound around the spool 51 to form a roll 51.
And

The thin film sheet with CBN abrasive grains obtained in the above was cut into a predetermined size and mounted on a base metal to manufacture and complete an electrodeposition grindstone (see FIGS. 4, 5 and 6).

1 First, as shown in FIG.
4C, the thin film sheet with the abrasive grains 25 obtained in FIG. 4C (in addition to the fact that the reinforcing fine particles 29 were removed in Example 1 was used), the base metal surface was reversed. The top of the grinding abrasive grain 25 is brought into contact with the top and fixed with an adhesive (see FIG. 4D). 2 Then, as shown in FIG. 6, the electrolytic solution (NiSO ₄ (73%), MgSO ₄ (7%), Mg
Cl ₂ (7%), boric acid (7%), sodium tartrate (6
%), And the DC power supply 14
, The pure Ni electrode 13 is connected to the anode and electrodeposition is performed, and the elution of the adhesive 31 is replaced with the electrodeposited metal 26 that is Ni ²⁺ ions (FIG. 5 (a)). The grinding abrasive grains 25 are solidified by the layer formed of the electrodeposited metal 26 of Ni metal (see FIG. 5B).

[Example-2] The members for electrodeposition grindstone are as follows. 1 Abrasive grain ... Grinding grain: (CBN, grain size: 120 ± 10μ
m) in addition to the reinforcing fine particles (CBN, particle size: 15 μm)
The following) are also used together. 2 Thin film sheet ... Same as in Example-1. 3 Adhesive ... For grinding grains: Amilodextron
And bittern (MgSO ₄ , MgCl ₂ , NaCl, KCl
It has a high viscosity. For reinforcing fine particles: Adhesive for grinding abrasive grains diluted with alcohol. 4 Abrasive layer pattern ... Figure 2 (c). 5 Whetstone base metal ... Same as in Example-1. 6 Fabrication of thin film sheet with CBN abrasive grains.

FIG. 8 shows another example of the method for manufacturing the thin film sheet with patterned abrasive grains used in this embodiment. In the figure,
Reference numeral 52 is a thin film sheet roll on which an adhesive is printed in a pattern, 53 is a patterned adhesive, 54 and 55 are rubber rolls, 56 is a brush, 57 is a spray gun, 58 is a dilution adhesive, 59 is a pressing rubber roll, 60 is a release sheet winding body,
Reference numeral 61 is a thin film sheet roll, and 62 is a recovered abrasive grain.

First, there is prepared a roll 52 in which a pressure sensitive adhesive 53 for grinding abrasive grains is printed in advance in a pattern of 4 by a print transfer method on one surface of a sheet from the thin film sheet of 2. Then, a pair of Teflon-coated rubber rolls 54 and 55 are fed out, the grinding abrasive grains 25 are supplied from the hopper nozzle 44 onto the sheet surface having the adhesive, the excess abrasive grains are removed by the brush 56, and the pattern-printed adhesive is used. After forming a denser layer of grinding abrasive grains only on the upper side, a diluting adhesive 58 containing reinforcing fine particles is sprayed from a spray gun 57. Next, the release tape from the release sheet winding body 60 was inserted through the pair of pressing rubber rolls 59, 59 and wound to obtain a thin film sheet winding body 61 of the CBN abrasive grains.

The CBN abrasive grain-attached thin film sheet roll 61 obtained in step 1 is cut to a predetermined size and mounted on a base metal, as shown in FIG.
We manufactured and completed an electrodeposition grindstone with the pattern. The procedure (see FIGS. 4 and 5) and the apparatus (see FIG. 6) are the same as in Example-1.

[0037]

【The invention's effect】

[Effect-1] An arbitrary and fine pattern can be drawn on the whetstone electrodeposition layer. Unlike conventional abrasive grain precipitation type electrodeposition method,
Since the group of grinding abrasive grains is transferred (see FIGS. 7 and 8) via the adhesive on the thin film sheet as described in the means 3 in advance, an electrodeposited abrasive grain layer having an arbitrary and fine pattern can be formed.

[Effect-2] There is no restriction on the shape of the base metal that can be electrodeposited. Before electrodeposition, after attaching the pattern-shaped abrasive grain-adhering thin film sheet to the base metal polishing surface in advance, that is, since the necessary abrasive grains are attached to the base metal polishing surface in the required pattern, the electrolytic bath Inside, it is not affected by gravity, local convection or turbulence. This is not affected by the trapezoidal shape or posture, so there is no restriction.

[Effect-3] There is no expensive abrasive grain loss and the manufacturing cost is low. In the method of the present invention, the loss of the abrasive grains generated by the abrasive grain sedimentation type electrodeposition method does not occur because the minimum required amount of abrasive grains is electrodeposited on a necessary portion of the base metal polishing surface. Further, as shown in FIGS. 7 and 8, the method of manufacturing the thin film sheet with abrasive grains is dry, and the recovered abrasive grains 62 can be easily recovered without loss.

[Effect-4] High productivity can be obtained. As described in "Effect-2" above, since the abrasive grains are held on the base metal polishing surface via the thin film sheet, there is no disturbance due to gravity, local convection or turbulence during electrodeposition. Therefore, the object to be processed can be rotated at a high speed and electrodeposition can be performed with a high current, and the productivity can be improved. Further, incidental work such as work for collecting abrasive grains in the exchange liquid of the electrolytic solution is drastically reduced, and the operation rate of the apparatus can be increased, so that productivity can be improved.

[Effect-5] The distribution of abrasive grains is uniform. Since the abrasive grain adhesion thin film sheet is manufactured by carefully selecting the abrasive grain sizes in advance, the grain size distribution becomes uniform.

[Effect-6] Quality deterioration is small. In the conventional abrasive grain precipitation type electrodeposition method, foreign matters, dust, rust, etc. in the electrolytic solution were also mixed in the electrodeposition layer, but in the method of the present invention, since the thin film sheet has a filtering function, Even if a lot of foreign substances are floating around, there is no effect.

[Effect-7] The life is long. As described in Effect-6, there should be no soft foreign matter (dust, rust, etc.) other than abrasive grains in the electrodeposition layer. With the pattern of FIG. 2, overheating and clogging can be prevented by the jet flow of the high-pressure grinding fluid that has penetrated into the pocket portion as shown in FIG. 1, so that the life can be extended. Further, by mixing the reinforcing fine particles into the electrodeposition layer between the abrasive grains, it is possible to prevent the electrodeposition metal layer from being abraded, so that the life can be further extended.

[Brief description of the drawings]

FIG. 1 is a diagram showing a situation in which a grinding process is being performed using an electrodeposition grindstone manufactured according to the present invention.

FIG. 2 is a view showing a pattern example of an abrasive grain-containing electrodeposition layer used in the electrodeposition grindstone of the present invention.

FIG. 3 is a diagram showing a configuration of an electrodeposition grindstone according to the present invention.

FIG. 4 is a diagram showing a procedure for producing an electrodeposition grindstone of the present invention.

FIG. 5 is a view showing a procedure (sequel to FIG. 4) of manufacturing the electrodeposition grindstone of the present invention.

FIG. 6 is a view showing an electrodeposition method for producing a patterned electrodeposition grindstone using the method of the present invention.

FIG. 7 is a diagram showing an example of a method for manufacturing a thin film sheet with patterned abrasive grains used in the present invention.

FIG. 8 is a diagram showing another example of a method for producing a thin film sheet with patterned abrasive grains used in the present invention.

FIG. 9 is a view showing the shape of a conventional electrodeposition grindstone.

FIG. 10 is a diagram showing a configuration of a conventional electrodeposition grindstone.

FIG. 11 is a view showing the shape of a conventional electrodeposition grindstone.

FIG. 12 is a view showing a situation in which a grinding process is being performed using a conventional electrodeposition grindstone.

FIG. 13 is a view showing an abrasive grain precipitation type electrodeposition method for producing a conventional electrodeposition grindstone.

[Explanation of symbols]

 1 base metal 2 electrodeposited layer 3 abrasive grain 4 electrodeposited metal 5 mixed foreign matter 6 grinding fluid 8 clogging of work material 10 electrolyte 14 electrode 21 grindstone 22 electrodeposited layer containing abrasive grain 23 polishing abrasive grain Electrodeposition layer not containing 29 Fine particles

Claims (4)

[Claims] 1. An electrodeposition grindstone comprising a base metal, abrasive grains and an electrodeposited metal layer for solidly lapping the abrasive grains on the base metal, wherein the outermost surface of the grindstone having a grinding action has a predetermined pattern of the abrasive grains. An electrodeposition grindstone formed by forming an electrodeposition layer consisting of an electrodeposition region group having a groove and a recessed region group having no abrasive grains. 2. The electro-deposition grindstone according to claim 1, wherein the electro-deposition region group having the abrasive grains has fine abrasive grains interposed in a gap between the abrasive grains having a predetermined grain size for grinding. An electrodeposition grindstone, characterized in that an abrasive grain group is solidly beaten on the electrodeposition layer by grains. 3. An adhesive having solubility and conductivity in an electrolytic solution is previously coated on the surface of a thin film having permeability to the electrolytic solution, and abrasive grains are formed on the adhesive in a predetermined pattern. Prepare a transfer material that has been adhered, attach the mold material cut out from the transfer material to a predetermined shape and size on the grinding stone base metal, immerse it in the electrolytic bath, and connect the cathode of the DC power supply to the base metal. At the same time, the method for producing an electrodeposition grindstone is characterized in that the anode is connected to the electrode for electrodeposited metal in the electrolytic cell to perform electrodeposition. 4. An abrasive for grinding is coated on a surface of a thin film having permeability to an electrolytic solution with an adhesive having solubility and conductivity to the electrolytic solution in a predetermined pattern by printing. Prepare a transfer body that adheres only on a predetermined pattern and applies a medium in which fine abrasive grains are suspended in a diluting solution of the above-mentioned adhesive and prepare a mold material cut out from the transfer body into a predetermined shape and size. After sticking on the grinding stone base metal, dip it in the electrolytic bath, connect the cathode of the DC power supply to the base metal, and connect the anode to the electrode for electrodeposited metal in the electrolytic bath for electrodeposition. A method for manufacturing a characteristic electrodeposition grindstone.