CN112004621B - Amorphous metal thin strip, method for processing same, and method for producing laminated body - Google Patents

Abstract

The present invention provides a method for suppressing the occurrence of cracks or fissures in an amorphous metal ribbon during the machining of the amorphous metal ribbon. In the method for processing an amorphous metal thin strip according to the present invention, the amorphous metal thin strip is vibrated and then machined or is vibrated and then machined. Specifically, in the method for processing an amorphous metal thin strip, the amorphous metal thin strip has a saturation magnetostriction of 1ppm or more, and the vibration is a vibration caused by magnetostriction of the amorphous metal thin strip. Or, for the amorphous metal thin strip, a portion to which vibration is locally applied by a processing tool is machined.

Description

Amorphous metal thin strip, method for processing same, and method for producing laminated body

technical field

The present invention relates to an amorphous metal thin strip, a method for processing the same, and a method for producing a laminate.

Background technique

Amorphous metal ribbon (amorphous metal ribbon) is widely used in various. As an example, amorphous metal strips with soft magnetic properties are used in information equipment, automobiles, home appliances/civilian equipment, industrial machinery, etc., specifically, as rotating electrical machines and reactors, power transformers, and noise suppression parts , Magnetic antennas, etc. are beneficial to the use of high-efficiency and high-gain materials.

Thin ribbons of amorphous metals are generally considered to have high hardness and low ductility. For example, an amorphous metal thin strip having soft magnetic properties is generally manufactured into a long (long) strip-shaped member by molten metal by a molten metal quenching method such as a single roll method. The thickness of the ribbon is mainly 5-70 μm. The Vickers hardness HV of the hardness of these thin metal strips is 500 or more. Thus, thin strips of amorphous metal have the disadvantage of being significantly difficult to machine.

In the prior art, these thin strips of amorphous metal are mainly used in toroidally wound winding cores which can be produced almost without machining. In recent years, research has been conducted on the technology of laminating thin strips of amorphous metal on top of winding cores for use as magnetic parts such as rotating electrical machines, reactors, and antennas.

The amorphous metal ribbon is manufactured as a strip-shaped member. Therefore, when the amorphous metal ribbon is laminated to form a laminate, the ribbon-shaped amorphous metal ribbon may be processed into a predetermined shape. , which are then stacked with such operations. Examples of methods for processing an amorphous metal thin strip into a predetermined shape include etching processing, electric discharge processing, laser processing, and the like. However, the processing efficiency of these processing methods is extremely low, and there are problems in industrial production. In addition, since the amorphous metal strip is brittle, cracks and cracks cannot be avoided, and the processing yield is poor.

The general-purpose processing methods for amorphous metal thin strips are mechanical processing such as punching and cutting in which a die and a processing tool are moved in the thickness direction. However, mechanical processing using an amorphous metal strip as a workpiece is more prone to cracks and cracks than the above-mentioned processing methods.

As a countermeasure, for example, Patent Document 1 is an invention based on the premise of punching an amorphous metal strip, and discloses the production of a laminate in which a plurality of soft magnetic metal strips with a thickness of 8 to 35 μm are laminated. And it is a technology to form a thermosetting resin with a predetermined thickness between thin metal strips. In addition, as an effect thereof, it is described that a laminate having excellent punchability and high performance can be easily provided.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2008-213410

Contents of the invention

The problem to be solved by the invention

However, as countermeasures against cracks and fissures, not only the study of enhancing the mechanical strength by members other than the amorphous metal ribbon as in Patent Document 1, but also the study of improvement measures for machining itself is required.

An object of the present invention is to provide a method capable of suppressing the occurrence of cracks and fissures in an amorphous metal ribbon during machining of the amorphous metal ribbon. In addition, a method of manufacturing a laminate using the amorphous metal ribbon is provided. In addition, there is provided an amorphous metal thin strip obtained by the machining.

way to solve problems

The present invention is a processing method of an amorphous metal thin strip,

Machining is performed after vibrating the above-mentioned amorphous metal thin strip, or while vibrating.

In the present invention described above, the amorphous metal ribbon has a saturation magnetostriction of 1 ppm or more, and the vibration may be vibration caused by the magnetostriction of the amorphous metal ribbon.

The frequency of the vibration can be from 1 Hz to 500 kHz.

The above-mentioned vibration can be generated by applying an AC magnetic field of 1 A/m or more to the above-mentioned amorphous metal ribbon.

The thin amorphous metal ribbon is in the shape of an elongated strip, and can be machined while conveying the thin amorphous metal ribbon in the elongated direction.

In the above-mentioned present invention,

In the above-mentioned amorphous metal thin strip, machining can be performed on a portion to which vibration is locally applied by a processing tool.

It can be the following processing method: the above-mentioned processing tool includes a punching machine and a punching frame capable of clamping the upper and lower surfaces of the above-mentioned amorphous metal thin strip, at least one of the above-mentioned punching machine and the punching frame can be used on the above-mentioned amorphous metal strip. The thickness direction of the state metal strip slides, the upper and lower surfaces of the above-mentioned amorphous metal strip can be clamped by the above-mentioned puncher and the punching frame, and at least one of them vibrates in the above-mentioned thickness direction, and the above-mentioned amorphous metal Vibration is applied to the amorphous metal ribbon at the portion of the ribbon located at the sliding portion of the puncher and the punching frame, and punching is performed on the portion subjected to repeated fatigue by the vibration with the puncher.

As the above-mentioned amorphous metal strip, a material mainly composed of Fe produced by roll cooling can be used.

The thickness of the amorphous metal thin ribbon can be 5 μm or more and 70 μm or less.

As the amorphous metal ribbon, a ribbon having a Vickers hardness HV of 500 or more can be used.

The amorphous metal ribbons processed by these amorphous metal ribbon processing methods can be laminated to form a laminate.

The following amorphous metal ribbon of the present invention is obtained by the above-mentioned processing method of the amorphous metal ribbon.

It is an amorphous metal ribbon having a sheared surface formed by machining on the processed surface of the ribbon where the profile on the sag side of the ribbon surface has a corrugated shape.

The corrugated profile can have irregularities at an average period of 0.1 to 20 μm.

In addition, the above-mentioned sheared surface may occupy 40% or more of the area of the above-mentioned processed surface.

Furthermore, the contour of the shear surface on the side of the sag side can have a corrugated shape relative to the contour of the surface of the strip on the side of the sag side.

In addition, other amorphous metal ribbons of the present invention are as follows.

A thin strip of amorphous metal having a shear plane formed by machining on the worked surface of the strip,

On the machined surface of the thin strip after machining, the fractured surface occupies 50% or more of the area.

The effect of the invention

According to the present invention, cracks and cracks generated in the amorphous metal ribbon can be suppressed during machining of the amorphous metal ribbon. Thereby, a machined amorphous metal ribbon with high dimensional accuracy can be obtained, and further, a laminate obtained by laminating them can be obtained.

Description of drawings

Fig. 1 is a schematic diagram of a processing apparatus used in the present invention.

Figure 2 is a schematic diagram of another processing apparatus used in the present invention.

Fig. 3 is a schematic diagram of another processing apparatus used in the present invention.

Figure 4 is a schematic diagram of another processing apparatus used in the present invention.

Fig. 5 is a schematic diagram of a mechanically processed amorphous metal strip that is judged as acceptable and has no cracks or cracks.

FIG. 6 is a schematic diagram of a machined amorphous metal strip that is judged to be unacceptable and has cracks and cracks.

FIG. 7 is a BH curve showing the soft magnetic properties of the amorphous metal ribbon used in the embodiment.

FIG. 8 is an enlarged view of a part of the horizontal axis in FIG. 7 .

FIG. 9 is a photograph of the processed surface of the amorphous metal ribbon (Table 1 No. 2) of Example 1. FIG.

FIG. 10 is an enlarged photograph of FIG. 9 .

FIG. 11 is a schematic diagram of FIG. 10 .

Fig. 12 is a photograph of the processed surface of an amorphous metal ribbon (Table 1 No. 8) for comparison.

FIG. 13 is an enlarged photograph of FIG. 12 .

FIG. 14 is a schematic diagram of FIG. 13 .

FIG. 15 is a photograph of the processed surface of the amorphous metal ribbon of Example 4. FIG.

FIG. 16 is a schematic diagram of FIG. 15 .

Fig. 17 is a photograph of the processed surface of another amorphous metal ribbon for comparison.

FIG. 18 is a schematic diagram of FIG. 17 .

Detailed ways

Although the present invention has been specifically described through embodiments, the present invention is not limited to these embodiments.

An embodiment of the present invention is a method of processing a thin strip of amorphous metal,

Machining is performed after vibrating the above-mentioned amorphous metal thin strip, or while vibrating.

Thin ribbons of amorphous metals are materials with extremely high fracture toughness. Therefore, when the ribbon starts to break during machining, a large plastic deformation occurs at the tip of the fracture crack, and as a result, a large impact occurs between the amorphous metal ribbon and the processing tool. In addition, since the amorphous metal thin strip has extremely high hardness as described above, it is easy to cause cracks and cracks in the cut portion due to the impact. In particular, when processed into a complicated shape, cracks and cracks tend to occur at corners with small curvatures and the like.

However, in the present invention, it was found that this problem can be suppressed by adopting the above-mentioned processing method.

Hereinafter, the mechanism by which the effects of the present invention are obtained is estimated.

Generally speaking, the cutting of glass mostly adopts the processing method of forming scratches on the surface, mainly starting from the scratches, and making the cracks propagate through the elastic fracture processing method. The atomic arrangement of the whole glass is dominated by covalent electronic coupling, and since any part of the glass is hard, the above-mentioned processing method can be used.

Just as an amorphous metal ribbon is also called a metallic glass, the arrangement of atoms is irregular like glass. However, unlike ordinary glasses, the coupling form of transition metals (such as between Fe-Fe) is mainly metal coupling, but in the coupling containing semi-metals (metalloid elements), it becomes covalent electronic coupling. The atomic level varies in hardness depending on the location. In addition, in metals (alloys), there are a large number of spaces (lattice defects in the crystal phase) in which atoms called free volumes (free volumes) exist. large plastic deformation. On the other hand, the surface of thin ribbons has no free volume and is characterized by very rigidity. Therefore, it is presumed that the thin amorphous metal ribbon is difficult to be applied to the same processing method as glass, and mechanical processing using shear deformation is required.

Therefore, the inventors of the present invention conceived of a machining method in which the amorphous metal ribbon is vibrated and then machined, or is vibrated while being machined. Here, machining the amorphous metal strip while vibrating also includes machining the amorphous metal strip while vibrating a processing tool.

The above-mentioned processing method is considered to obtain the effects of (1) to (3).

(1) By vibrating the amorphous metal ribbon, the brittleness of the amorphous metal ribbon can be improved. Therefore, by performing machining after vibrating, it is possible to improve the workability of a machining object that is not vibrated.

(2) By vibrating the amorphous metal ribbon, the brittleness of the amorphous metal ribbon can be improved. Therefore, by performing machining while vibrating the machining tool, that is, performing machining while vibrating the amorphous metal thin strip, it is possible to improve the processability of a machining object that is not vibrated.

(3) By performing machining while vibrating the amorphous metal ribbon, the amorphous metal ribbon relatively vibrates when it comes into contact with the processing tool, so that the hard surface of the amorphous metal ribbon is polished in the same manner. The state starts machining, and can realize high-precision machining. In addition, the inside of the ribbon is sheared and deformed by machining thereafter.

In addition, when a sharp cutting blade is used as a processing tool, the cutting blade is usually pressed against the workpiece and relatively moved in this state to cut. In this case, it is necessary to move the cutting blade and the workpiece by a predetermined distance in a predetermined direction. In addition, the machining of curves and complex shapes is extremely difficult.

In the case of using vibration as in the present invention, it is known that the tip of the cutting blade is microscopically serrated. The workpiece and the cutting blade relatively move over a long distance, and an incision can be made on the surface of the workpiece.

In addition, as another secondary effect of the present invention, the effect of prolonging the life of the machining tool can be expected. By suppressing the pressing speed, the impact when hitting on a hard strip surface is greatly reduced.

In addition, in the present invention, machining refers to a known machining method in which a workpiece is machined using a machining tool or a working machine. For example, punching processing, shearing processing, cutting processing, slitting processing, etc.

Hereinafter, a specific method of processing the amorphous metal ribbon will be described.

In an embodiment of the present invention, the amorphous metal ribbon has a saturation magnetostriction of 1 ppm or more, and the vibration may be vibration caused by the magnetostriction of the amorphous metal ribbon.

This processing method is characterized in that the amorphous metal ribbon is not vibrated by external stress, but an alternating magnetic field is applied to vibrate the ribbon by magnetostriction. By vibrating in this way, only the amorphous metal ribbon can be easily vibrated. Therefore, by vibrating the processing tool, the workpiece can be vibrated with a small amount of energy. In addition, since the amorphous metal ribbon itself becomes a vibration source, it can be reliably vibrated, and the effect of suppressing cracks and cracks can be enhanced. That is, in the case of processing a laminated body of amorphous metal thin strips with resin sandwiched therebetween, etc., in the case of vibrating with stress from the outside, there is a possibility that the vibration is absorbed by the resin and is not given to the inside in the lamination direction. The amorphous metal ribbon may vibrate sufficiently, but even such a workpiece can easily vibrate the amorphous metal ribbon to obtain the crack and crack suppression effect of the present invention.

In addition, this processing method is characterized in that the amorphous metal thin strip is vibrated in multiple directions. In this embodiment, since the thin amorphous metal ribbon is vibrated by magnetostriction, vibration due to compression and expansion occurs in the direction of the applied magnetic field, and expansion and compression simultaneously occur in the direction perpendicular to the direction of the applied magnetic field. The resulting vibration occurs. That is, regardless of the direction in which the processing tool and the amorphous metal ribbon are in contact, they are in a state of relatively sliding relative to each other more stably than in a single direction of vibration, and therefore the effect of suppressing cracks and cracks can be easily obtained.

In addition, this processing method is easier to process than existing mechanical processes. The reason for this will be described below.

Most amorphous metal thin strips are produced by roll quenching from the viewpoint of industrial productivity. Roll quenching is a method in which molten liquid metal is dripped onto a roll made of a metal with high thermal conductivity (for example, a Cu alloy), and brought into close contact to solidify rapidly. Roll quenching is widely used as a casting method for amorphous metal strips because extremely high cooling rates of about 1×10 ⁵ to 1×10 ⁷ °C/s can be obtained.

However, since the molten metal is solidified in an extremely short time, the unevenness of the partial cooling rate is reflected, and the surface of the ribbon tends to have unevenness. When these thin strips are stacked to punch holes at the same time, the convex portion on the surface of one of the thin strips is likely to be in contact with the opposite thin strip surface and is not easy to slide in the in-plane direction. The shape of the blade is machined, but on the other hand, since the concave portion tends to slip, the stress from the machining tool is dispersed, and it is difficult to be machined along the shape of the blade of the machining tool.

In particular, because of the high hardness of the amorphous metal strip, it is necessary to accelerate the relative speed with the processing tool during mechanical processing, and the amorphous metal strip is broken in a manner of being torn, resulting in a loss from the cutting line. detachment defect.

In the method for processing an amorphous metal strip according to this embodiment, since the strip is machined in a vibrating state, both of them move positively and relative to each other, thereby generating fine grains from the portion abutted by the processing tool. , and use this as a starting point to advance the shear deformation. Therefore, the concave portion of the thin strip is also fixed by the binding force of the surrounding strong binding force, so that cutting becomes easy.

In this embodiment, an amorphous metal ribbon having a saturation magnetostriction of 1 ppm or more is used. If the saturation magnetostriction is less than 1 ppm, sufficient vibration will not be generated, and it will be difficult to obtain the effect of the present invention. The saturation magnetostriction is preferably 3 ppm or more, more preferably 5 ppm or more, more preferably 10 ppm or more, still more preferably 15 ppm or more.

The above-mentioned vibration preferably has a frequency of not less than 1 Hz and not more than 500 kHz. If the frequency is less than 1 Hz or exceeds 500 kHz, it will be difficult to obtain the effect of suppressing cracks and fissures.

The lower limit of the frequency is preferably 10 Hz, more preferably 100 Hz, and still more preferably 1 kHz. The upper limit of the frequency is preferably 400 kHz, more preferably 300 kHz, more preferably 80 kHz, more preferably 60 kHz, still more preferably 40 kHz.

The above-mentioned vibration is preferably generated by applying an AC magnetic field of 1 A/m or more to the above-mentioned amorphous metal ribbon. If the lower limit of the AC magnetic field is less than 1 A/m, it will be difficult to obtain cracks and crack suppression effects.

The lower limit of the AC magnetic field is preferably 10A/m, more preferably 30A/m, more preferably 70A/m, more preferably 100A/m, and more preferably 130A/m.

In addition, the thin amorphous metal strip is in the shape of a long (elongated) strip, and can be machined while conveying the thin amorphous metal strip in the direction of the long strip. In addition, when performing machining while conveying, it is also possible to stop the movement of the amorphous metal thin strip during the machining, and then restart the movement after the machining, so that the machining can be performed continuously.

Ribbons in transit are known to break easily. When the ribbon is vibrated by external stress, there is a concern that the ribbon during transportation is likely to be further broken around the place where the stress is applied. On the other hand, in the case of vibrating by magnetostriction, the magnetic flux flows in the in-plane direction of the amorphous metal ribbon, and local internal stress is less likely to be generated, so compared with the case of vibrating by applying stress from the outside , can suppress ribbon breakage during transportation.

In addition, the object of the processed object of the present invention is limited to the amorphous metal ribbon, but in the processing method of the present embodiment, it is not limited thereto, and even materials having magnetostriction other than the amorphous metal ribbon , can also obtain the inhibitory effect of cracks and cracks.

That is, as another invention, it is possible to provide a method of machining a thin metal strip that is machined while applying vibration to at least one of a thin metal strip or a processing tool used for processing, wherein

By making the metal ribbon have a saturation magnetostriction of 1 ppm or more, the vibration is vibration caused by the magnetostriction of the metal ribbon, thereby having the same effect as the present invention.

According to the above-mentioned processing method of the amorphous metal ribbon, the amorphous metal ribbon of the following embodiment is obtained.

The amorphous metal ribbon according to the present embodiment has a sheared surface formed by machining on the processed surface of the ribbon, and on the processed surface, the contour of the ribbon surface on the side of the sagging surface is corrugated. Among them, the processing surface corresponds to a punched surface (side surface) and a cut surface (cut surface) in punching processing and cutting processing.

Specifically, the corrugated profile can have irregularities at an average period of 0.1 to 20 μm. In this way, it is estimated that the reason why the unevenness exists at a period of 0.1 to 20 μm is as follows. In this magnetostrictive vibration method, the polarity of the magnetic field is switched at a cycle of several tens of kHz. That is, the positive magnetization state and the negative magnetization state are switched at a high frequency. Magnetostriction also increases in a magnetized state, and becomes zero in a state where magnetization is zero. This high-speed magnetization reversal is caused by the movement of the magnetic wall, and the magnetostriction becomes the smallest on the magnetic wall. The magnetic domain width (the distance between the magnetic walls, which is about twice the moving distance of the magnetic walls) is 0.2 to 40 μm in order to be able to follow the high-speed magnetization reversal. It is assumed that by moving the magnetic wall whose volume is different from that of the surroundings while being pressed by the blade from the upper surface, it is assumed that the blade moves in a zigzag manner. The method of measuring the average period of unevenness is a method of measuring at least five intervals between the deepest portions of adjacent recesses and measuring the average value of the intervals. In addition, asperities have a difference of 0.3 μm or more in the thickness direction of the thin strips between the concavities and convexities as one concavity and convexity.

In addition, in the amorphous metal ribbon of this embodiment, the processed surface and the sheared surface may occupy 40% or more of the area. The shear plane may occupy 50% or more of the area, may further occupy 60% or more, and may further occupy 65% or more of the area. In addition, the numerical value of the area occupied by the sheared surface of the processed surface can be calculated by the following measurement method. First, the thickness T (T1, T2, ... Tn) of the thin strip and the width W (w1, w2, ... wn) of the sheared surface are measured at arbitrary positions on the processed surface. After that, Wsum/Tsum×100(%) is calculated from the sum Tsum of T1 to Tn and the sum Wsum of w1 to w2. In the present embodiment, the above numerical value was calculated by setting arbitrary measurement points to five within the range of the width of the processed surface of 450 μm.

In addition, in the amorphous metal ribbon of this embodiment, the profile on the sag side of the sheared surface may have a corrugated shape relative to the profile on the sag side of the ribbon surface on the processed surface. The corrugated type means that the fluctuation of the period of concavo-convexity (the interval between the deepest parts of adjacent concave parts) appears similarly on both contours. In this way, the reason why there is a correlation between the two corrugated profiles is presumed as follows. As mentioned above, the origin of this periodicity is considered to depend on the distance between the magnetic walls. The magnetostriction seen here is linear magnetostriction, and the area of the magnetostrictive state different from the surrounding area near the magnetic wall expands in the vertical direction, and the same phenomenon occurs repeatedly at the place where the sag and fracture are formed, that is, directly below the blade. Periodic volume changes, so it is considered that both sides of the two contours are exactly similar.

Another embodiment will be described regarding the processing method of the amorphous metal ribbon of the present invention. In this embodiment, a system is used in which a part of an amorphous metal thin strip is machined to which vibration is locally applied by a processing tool.

According to this embodiment, since the portion with increased brittleness is machined, the workability can be improved, and the effect of suppressing cracks and cracks can be easily obtained.

In this embodiment, for example, the processing tool includes a puncher and a punching frame capable of clamping the upper and lower surfaces of the amorphous metal strip,

At least one of the above-mentioned punching machine and the punching frame can slide in the thickness direction of the above-mentioned amorphous metal thin strip,

The following process can be adopted: the upper and lower surfaces of the amorphous metal thin strip are clamped by the above-mentioned punching machine and the punching frame, and at least one of them vibrates in the above-mentioned thickness direction, and the above-mentioned punching hole is located on the amorphous metal thin strip. Vibration was applied to the thin strip of amorphous metal by the part of the sliding part of the punching machine and the punching frame, and punching was performed on the part subjected to repeated fatigue by the vibration with the above-mentioned punching machine.

According to this embodiment, the following amorphous metal ribbon is obtained.

The amorphous metal ribbon of this embodiment has a sheared surface formed by machining on the processed surface of the ribbon, and the fractured surface occupies 50% or more of the area of the machined ribbon processed surface. The fracture surface may occupy more than 60% of the area, and may further occupy 65% of the area.

In addition, the numerical value of the area occupied by the fracture surface of the processed surface can be calculated by the following measurement method. First, the thickness T (T1, T2, ... Tn) of the thin strip and the width W (W1, W2, ... Wn) of the fractured surface are measured at arbitrary places on the processed surface. After that, from the sum Tsum of T1 to Tn and the sum Wsum of W1 to W2, Wsum/Tsum×100(%) is calculated. In the present embodiment, the above numerical value was calculated by setting arbitrary measurement points to five within the range of the width of the processed surface of 450 μm.

Hereinafter, the amorphous metal ribbon used in this embodiment will be described.

The method for producing the amorphous metal ribbon is not particularly limited.

As an example, it is possible to use a thin strip mainly composed of Fe produced by cooling the rolls. In addition, the main component refers to the component contained most.

For example, the amorphous metal ribbon of this embodiment uses a material having a composition in which Si is 0 atomic % or more and 10 atomic % or B is 10 atomic % when the total amount of Fe, Si, and B is 100 atomic %. Above 20 atomic %, Fe accounts for the rest.

When the amount of Si and B is out of this range, it is difficult to become an amorphous alloy during production by roll cooling, or the mass productivity tends to decrease. Elements other than Fe, Si, and B, such as Mn, S, C, and Al, may be contained as additives or unavoidable impurities. The amorphous metal ribbon preferably has the above composition, is amorphous (amorphous) without a crystalline structure, and is preferably a soft magnetic body. In addition, the amount of Si is preferably not less than 3 atomic % and not more than 10 atomic %. In addition, the amount of B is preferably not less than 10 atomic % and not more than 15 atomic %. In addition, the amount of Fe is preferably 78 atomic % or more, more preferably 79.5 atomic % or more, still more preferably 80 atomic % or more, and still more preferably 81 atomic % or more in order to obtain a high saturation magnetic flux density Bs. In addition, although the amorphous metal ribbon may contain inevitable impurities, the total ratio of Fe, Si, and B is preferably 95% by mass or more, more preferably 98% by mass or more. In addition, the amorphous metal thin strip is sometimes called an amorphous alloy thin strip, and sometimes called an amorphous alloy strip, a soft magnetic amorphous alloy strip, and the like.

The amorphous metal ribbon having the above composition has a saturation magnetostriction of 5 ppm or more and a Vickers hardness HV of 700 or more.

In addition, thin ribbons of amorphous metals capable of nanocrystallization can also be used. As the amorphous metal ribbon capable of nanocrystallization, an Fe-based ribbon can be used. Specifically, as the Fe-based amorphous alloy ribbon, the following general formula can be used: (Fe _1-a M _a ) _{100-xyz-α-β-γ} Cu _x Si _y B _z M' _α M" _β X _γ (atomic %) (wherein M is Co and/or Ni, M' is at least one element selected from Nb, Mo, Ta, Ti, Zr, Hf, V, Cr, Mn and W, M" is at least one element selected from Al, platinum group elements, Sc, rare earth elements, Zn, Sn, Re, and X is at least one element selected from C, Ge, P, Ga, Sb, In, Be, As elements, a, x, y, z, α, β and γ respectively satisfy 0≤a≤0.5, 0.1≤x≤3, 0≤y≤30, 0≤z≤25, 5≤y+z≤30, 0 ≤ α ≤ 20, 0 ≤ β ≤ 20 and 0 ≤ γ ≤ 20.) The alloy represented by the composition. Preferably, in the above general formula, a, x, y, z, α, β and γ respectively satisfy 0≤a≤0.1, 0.7≤x≤1.3, 12≤y≤17, 5≤z≤10, 1.5≤α The ranges of ≤5, 0≤β≤1 and 0≤γ≤1.

The amorphous metal ribbon having the above composition has a saturation magnetostriction of 5 ppm or more and a Vickers hardness HV of 700 or more.

The amorphous metal ribbon is nano-crystallized by heat-treating the above-mentioned amorphous metal ribbon capable of nanocrystallization above the crystallization initiation temperature.

In the nanocrystallized alloy, at least 50% by volume and further 80% by volume are occupied by fine crystal grains having an average particle diameter of 100 nm or less as measured by the largest dimension. In addition, the part other than the fine crystal grains in the alloy is mainly amorphous. The ratio of the fine crystal grains can also be substantially 100% by volume.

An elongated amorphous metal ribbon can be obtained by melting alloys having these compositions at a melting point or higher and quenching and solidifying them by the roll method.

A thin amorphous metal ribbon having a thickness of 5 μm or more and 70 μm or less can be used. If the thickness is less than 5 μm, the mechanical strength of the amorphous metal ribbon is insufficient, and handling during machining and continuous conveyance in the elongated direction tend to become difficult. The thickness is preferably 15 μm or more, more preferably 20 μm or more. On the other hand, if the thickness of the ribbon exceeds 70 μm, depending on the composition, it tends to be difficult to stably obtain the amorphous phase in the thin ribbon. The thickness is preferably 50 μm or less, more preferably 35 μm or less, more preferably 30 μm or less.

The apparatus of embodiment which performs machining is demonstrated.

For example, the apparatus described in FIG. 1 , FIG. 2 , and FIG. 3 can be used. However, in the present invention, devices that can be used are not limited thereto.

The apparatus in FIG. 1 is a schematic diagram of an apparatus used in the method of processing an amorphous metal ribbon (machining an amorphous metal ribbon having magnetostriction while vibrating it by magnetostriction) according to an embodiment. .

The apparatus in FIG. 1 includes a thin amorphous metal strip 1 , a coil 2 wound so as to flow a magnetic flux to the thin amorphous metal strip 1 , and a processing tool 6 capable of machining the thin amorphous metal strip 1 . The coil 2 flows an AC current from the AC power supply 3 amplified by the amplifier 4 .

In the embodiment shown in FIG. 1 , an elongated amorphous metal thin strip 1 is wound around an annular bobbin 5 having flexibility at least on the outer peripheral side in the circumferential direction. The processing tool 6 is a cutting blade. The processing tool 6 can move along the radial direction of the bobbin 5 , and when moving toward the bobbin side, the tip of the cutting blade can abut against the thin amorphous metal strip 1 wound around the peripheral surface of the bobbin 5 . In addition, it is configured to be able to be inserted into a flexible material on the outer peripheral side of the bobbin 5 to move from the outer peripheral surface of the bobbin to the radially inner side.

A method of using the device of FIG. 1 will be described. When an AC current is supplied to the coil 2, an AC magnetic field is generated in the axial direction of the coil, and an AC magnetic flux flows to the amorphous metal ribbon 1 disposed inside the coil, causing the amorphous metal ribbon 1 to vibrate magnetostrictively. By pressing the front end of the cutting blade 6 against the surface of the amorphous metal ribbon 1 while maintaining this state, mechanical processing such as cutting, slitting, and punching is performed on the amorphous metal ribbon 1 .

In addition, in the embodiment shown in FIG. 1 , the thin amorphous metal ribbon 1 wound around the bobbin does not need to be annular, but may be arcuate. In this case, a yoke for recirculating the magnetic flux flowing to the thin strip of amorphous metal may also be used.

The apparatus of FIG. 2 is the same as that of FIG. 1, and is used in the processing method of the amorphous metal ribbon (machining the amorphous metal ribbon with magnetostriction while making the magnetostrictive vibration) in the embodiment. Schematic diagrams of other devices.

The device in Fig. 2 is the same as that in Fig. 1, comprising an amorphous metal strip 1, a coil 2 wound in such a way that a magnetic flux flows to the amorphous metal strip 1, and a device capable of machining the amorphous metal strip 1 Processing tools.

In the embodiment of Fig. 2, regarding the processing tool, among the figure 6a is a puncher (puncher, puncher, puncher) for punching, and 6b is a punching frame (punch frame, punching frame, punching frame) for punching. punching frame). A part of the elongated amorphous metal thin strip 1 is arranged at a position where holes can be punched by the processing tools 6a and 6b. In the figure, the elongated amorphous metal thin strip 1 is unwound from the unwinding roll 7 and conveyed to the processing tools 6a, 6b. The processing tools 6a and 6b perform punching processing on the conveyed thin amorphous metal strip 1 . Thereby, machining can be performed simultaneously with continuously conveying the amorphous metal thin strip 1 .

In the figure, the coil 2 is formed such that its axial direction is parallel to the longitudinal direction of the amorphous metal ribbon 1 .

The AC power supply 3 and the amplifier 4 have the same structure as that of FIG. 1, and the description thereof will be omitted.

A method of using the device of FIG. 2 will be described. 1, by flowing an alternating current to the coil 2, an alternating magnetic field is generated in the axial direction of the coil, and an alternating magnetic flux flows to the amorphous metal ribbon 1 arranged inside the coil, so that the amorphous metal ribbon 1 is magnetized. stretching vibration. Punching is performed by sliding the processing tools 6a and 6b while maintaining this state.

In addition, in the embodiment of FIG. 2 , the yoke 8 for recirculating the magnetic flux flowing to the amorphous metal ribbon is used.

The apparatus of FIG. 3 is used in the processing method of the amorphous metal thin strip of the embodiment (the processing method of machining the portion of the amorphous metal thin strip to which vibration is locally applied by a processing tool) Schematic diagram of the device. The portion to which vibration is applied becomes brittle due to repeated fatigue. Therefore, machining becomes easy.

The device in FIG. 3 includes an amorphous metal strip 1 and a processing tool capable of machining the amorphous metal strip 1 . The processing tools include punchers 8a, 8b and punching frames 9a, 9b capable of clamping the upper and lower surfaces of the amorphous metal thin strip, respectively.

A method of using the device of FIG. 3 will be described. Both the punchers 8a, 8b and the punch frames 9a, 9b can slide in the thickness direction of the amorphous metal thin strip. Clamp amorphous metal strip 1 respectively by punching machine 8a, 8b and punching frame 9a, 9b, and at least one of it vibrates in thickness direction (in Fig. 3, the arrow of punching frame 9a, 9b represents vibration ), applying vibration to the amorphous metal thin strip at the part of the sliding part of the above-mentioned punches 8a, 8b and the punching frame 9a, 9b, and applying repeated fatigue through the vibration. Thereafter, as shown in FIG. 4 , the punches 8 a , 8 b are moved in the thickness direction of the amorphous metal strip 1 , whereby the amorphous metal strip 1 is punched at the portion subjected to repeated fatigue.

The unwinding roll 7 and the amorphous metal strip 1 have the same structure as that in Fig. 2, and the description thereof is omitted.

As the processing tool, in addition to the above description, for example, a cutting blade for cutting, a cutting blade for slitting, and the like can be used.

As a means of applying vibration to at least one of the amorphous metal thin strip and the processing tool used for the above-mentioned processing, an ultrasonic generator or the like can be used in addition to the magnetostrictive vibration of the above-mentioned coil. A known structure can be used for the ultrasonic generator, and it is not particularly limited.

In the method for processing the amorphous metal strip described above, the amorphous metal strip can also be mechanically processed by coating resin on at least one surface of the amorphous metal strip, or sticking a resin sheet. .

The amorphous metal ribbons processed by the method for processing an amorphous metal ribbon described above can be stacked to form a laminate.

(Example 1)

A thin strip of amorphous metal was machined using the apparatus shown in FIG. 1 . Specifically, it was carried out under the following conditions.

As the amorphous metal thin strip, a thin strip slit with a width of 25 mm was used.

As the amorphous metal ribbon, a ribbon having a composition of 100 atomic % of Fe, Si, and B, Fe: 82 atomic %, Si: 4 atomic %, and B: 14 atomic % was used. In addition, unavoidable impurities such as Cu and Mn are 0.5% by mass or less.

The thin amorphous metal ribbon had a thickness of 20 μm, a saturation magnetostriction of 27 ppm, and a Vickers hardness HV of 800.

The amorphous metal thin strip of this composition is also known as a soft magnetic material with high magnetic permeability, and magnetization easily occurs following an AC magnetic field, and the magnetic body vibrates by itself through the magnetization process.

A sharp cutting blade is used as the processing tool 6 .

Spool 5 uses paper tubes. Since the outer peripheral side of the paper tube has flexibility, the tip of the cutting blade can be inserted to a position closer to the inner peripheral side than the outer diameter portion. The outer diameter of the spool is 100mm.

The above-mentioned slit amorphous metal thin strip 1 was wound twice in the circumferential direction of the bobbin. The magnetic path length of the wound amorphous metal strip 1 is about 0.314m.

The number of turns of the coil 2 is 10. An AC current of 10kHz to 200kHz is sent from the AC power supply 3 to the amplifier 4, and the current is amplified by the amplifier 4 so that the maximum value of the AC magnetic field generated in the coil becomes 70A/m or 130A/m, and an AC current flows in the coil 2 .

According to the above conditions, the amorphous metal thin strip 1 is magnetostrictively vibrated, and a load of 10kgf (approximately 100N lightly pressed by the arm) is applied to the cutting blade 6 while maintaining this state, and the front end is pressed against the amorphous metal strip 6. State metal strip 1 surface.

In addition, as a comparison, machining was performed in the same manner as in Embodiment 1 except that magnetostrictive vibration was not applied.

Under the above-mentioned conditions, it was confirmed to what extent magnetostriction occurred in the amorphous metal ribbon.

7 and 8 are B-H curves showing the soft magnetic properties of the amorphous metal ribbon used, and FIG. 8 is an enlarged view of the horizontal axis in FIG. 7 . As shown in FIG. 7 , the magnetic flux density of the amorphous metal strip at 800 A/m is B=1.5T which is close to the saturation magnetic flux density. In addition, as shown in FIG. 8 , the magnetic flux density of 130 A/m is B=1.1T, which is about 73.3% of the saturation magnetic flux density. Since the saturation magnetostriction of the amorphous metal strip is 27ppm, under the condition of applying an AC magnetic field of 130A/m to the amorphous metal strip, the magnetostriction of 19.8ppm is calculated by 27ppm×73.3%. Magnetostriction performs magnetostrictive vibration.

Similarly, when calculation is performed when an AC magnetic field of 70 A/m is applied to the amorphous metal ribbon, magnetostrictive vibration is performed at a magnetostriction of 16 ppm.

Table 1 shows the frequency f of the AC power supply 3, the maximum magnetic field strength H generated in the coil, the yield rate Out of the machining of the thin amorphous metal strip on the outer peripheral side, and the machining of the thin amorphous metal strip on the inner peripheral side. The qualification rate In.

In addition, the pass rate of mechanical processing is defined as those without cracks and cracks from the cut marks 12 as shown in FIG. failed. The number of experiments for machining is 10 times.

[Table 1]

no f(kHz) H(A/m) Out (%) In (%) Fever above 40°C 1 10 130 90 90 none 2 20 130 90 100 none 3 40 130 90 100 none 4 60 130 80 80 have 5 80 130 60 80 have 6 100 130 60 90 have 7 200 70 60 90 have 8 0 0 10 50 have

In the measurement results of No. 8 in which the amorphous metal strip was machined without magnetostrictive vibration, the pass rate on the outer peripheral side was only 10%, and the pass rate on the inner peripheral side was only 50%.

On the other hand, in Embodiments No. 1 to 7 in which machining is performed while making the amorphous metal thin strip magnetostrictively vibrate, the yields on the outer peripheral side are all 60% or more, and the yields on the inner peripheral side are all 60% or more. 80% or more, compared with the pass rate of the comparative example, the pass rate was improved in all embodiments.

In particular, in Embodiments No. 1-4 in which the frequency of the magnetostrictive vibration is 10 to 60 kHz, the yield on the outer peripheral side was all increased to 80% or more. Furthermore, in Embodiments No. 1-3 with a frequency of 10 to 40 kHz, the pass rate on the outer peripheral side was all increased to 90% or more. Furthermore, in Embodiments No. 2 and No. 3 with a frequency of 20 to 40 kHz, the pass rate on the inner peripheral side was also increased to 100%.

In addition, Table 1 in Table 1 also shows the presence or absence of heat generation at 40°C or higher due to induction heating. In the embodiment without heat generation of 40° C. or higher, a higher yield rate was observed. The reason for this is considered to be that, in the absence of heat generation, the magnetization follows the magnetic field, and the vibration of the magnetic field is efficiently converted into a state of mechanical vibration. On the other hand, it is considered because when the frequency of the AC magnetic field increases, a large delay occurs in the response of the magnetization to the magnetic field, that is, a loss occurs, and the loss is released as heat. It is presumed that the loss occurs because the energy of the applied magnetic field is not efficiently converted into the energy of the magnetostrictive vibration.

FIG. 9 is a photograph of the processed surface of the amorphous metal ribbon No. 2 in Table 1. FIG. The magnification is 500 times. FIG. 10 is an enlarged photograph of FIG. 9 . The magnification is 3000 times. The figure shows the outer peripheral side when the upper side of the ribbon is wound on the bobbin. In the figure, it can be confirmed that the sheared surface has oblique machining marks at the central portion in the thickness direction of the ribbon.

FIG. 11 is a schematic diagram of FIG. 10 . In the figure, B is the shear plane. B2 is a cut surface where linear processing traces can be observed in the moving direction of the cutting blade, and B1 is a cut surface where such traces cannot be observed. In addition, A is a sag surface, C is a fracture surface, and D is a flash surface.

The amorphous metal ribbon of this embodiment is an amorphous metal ribbon having a sheared surface formed by machining on the processed surface of the ribbon. corrugated type.

A corrugated profile is formed at an average period of 5.2 μm.

Further, in the processed surface, the sheared surface accounts for 70.4%.

In addition, in the amorphous metal ribbon of the present embodiment, the profile on the sag side of the shear plane has a correlation with the profile on the sag side of the ribbon surface over the entire width of 45 μm in the photograph shown in FIG. 10 . corrugated type.

FIG. 12 is a photograph of the processed surface of the amorphous metal ribbon of Comparative Example No. 8 in Table 1. FIG. The magnification is 500 times. FIG. 13 is an enlarged photograph of FIG. 12 . The magnification is 3000 times. In the drawing, it is the outer peripheral side when the upper side of the ribbon is wound on the bobbin. In the figure, it can be confirmed that the sheared surface has oblique machining marks at the central portion in the thickness direction of the ribbon.

FIG. 14 is a schematic diagram of FIG. 13 . In the figure, B is the shear plane. In addition, A is a sagging surface, C is a fracture surface, and D is a burr surface.

This comparative amorphous metal ribbon is different from the present embodiment in that the ribbon surface has a flat profile on the sag side and is not corrugated. In addition, the contour of the shear surface on the side of the sag side is not a shape related to the contour of the surface of the ribbon on the side of the sag side.

In addition, the proportion of the sheared surface is very small at 27.2%.

(Example 2)

In Example 2, the strength of the applied AC magnetic field was changed, and the pass rate of the machining was investigated.

A thin strip of amorphous metal was machined using the apparatus shown in FIG. 1 . The frequency of the magnetostrictive vibration is 30 kHz. In addition, an alternating current was passed through the coil so that the maximum value of the alternating magnetic field generated in the coil was 30 A/m, 70 A/m, 100 A/m, and 130 A/m. In this case, the thin amorphous metal strip undergoes magnetostrictive vibration at magnetostriction levels of 12 ppm, 16 ppm, 18 ppm, and 19.8 ppm.

Except for this, the pass rate was investigated under the same conditions as in the first embodiment.

In the range of the intensity of the AC magnetic field, the yields of the outer peripheral sides of the Nos. 1-4 embodiments in which machining was performed while making the amorphous metal thin strip magnetostrictively vibrate were all 60% or more, and the inner peripheral side All of the pass rates were 70% or more, and compared with the pass rate of No. 8 comparative example in Table 1, the pass rate was improved in all embodiments.

In addition, within the range of the intensity of the AC magnetic field, the higher the magnetic field intensity, the higher the yield of machining tends to be.

[Table 2]

no f(kHz) H(A/m) Out (%) In (%) presence or absence of fever 1 30 30 60 70 none 2 30 70 70 80 none 3 30 100 90 90 none 4 30 130 100 100 none

(Example 3)

A thin ribbon of amorphous metal was machined using the apparatus depicted in FIG. 1 .

As the bobbin 5, the same bobbin as that in the first embodiment is used. The above-mentioned slit amorphous metal thin strip 1 was wound four times in the circumferential direction of the bobbin.

An AC current of 30 kHz is supplied from the AC power supply 3 to the amplifier 4, and the current is amplified by the amplifier 4 to flow an AC current through the coil 2 so that the maximum value of the AC magnetic field generated in the coil (14 turns) becomes 180 A/m. In this case, the thin amorphous metal strip undergoes magnetostrictive vibration at a magnetostriction of 24 ppm.

Except for this, the yield rate of machining was investigated under the same conditions as in Embodiment 1.

As a result, all four layers could be cut without cracks or cracks.

In addition, as a comparison, the yield rate of machining was investigated under the condition that the coil 2 does not flow an alternating current and does not cause magnetostrictive vibration. Insertion deteriorated, and cracks or cracks occurred in a wide range in all four layers. The pass rate was 90% when an AC magnetic field was generated, and 0% when there was no magnetic field.

In addition, in Examples 1-3, the above-mentioned FeSiB-based amorphous metal ribbon having soft magnetic properties was used, but the above-mentioned amorphous metal ribbon capable of nanocrystallization also has the same level of magnetic properties as long as it is before nanocrystallization. Since saturation magnetostriction is applied, the same effect can be expected by applying the present invention.

In embodiment 1-3, implement the mechanical processing of setting slit to amorphous metal strip, for example, can also cut or punch the long thin strip, become a plurality of processing thin strips of the same shape, and stack them.

(Example 4)

In Example 4, the processing method of the amorphous metal thin strip according to the above-mentioned embodiment is obtained (for the amorphous metal thin strip, the vibration is locally applied by the processing tool, and the repeated fatigue caused by the above-mentioned vibration is applied Machining method) Amorphous metal strip after machining.

A thin strip of amorphous metal having an alloy composition of Fe _81.5 Si ₄ B _14.5 in atomic percent was produced by cooling the rolls. A thin strip of amorphous metal with a thickness of 22.7 μm was prepared. Thickness of thin strips is calculated from density, weight and dimensions (length x width). In addition, the width of the thin strip is 80mm.

As the punching device, the device shown in Fig. 3 was used.

As the punching die, a superhard material (Fuji Roy VF-12 material manufactured by Fuji Die Co., Ltd.) was used along with the punchers 8a, 8b and the punching frames 9a, 9b. The punching machine is a rectangular column with a front end, its size is 5×15mm, and the corners are treated with R corners (R part 0.3mm). The die is formed with a machined hole that is inserted into the punching machine. In addition, the punches 8a, 8b and the punching frames 9a, 9b hold the thin amorphous metal strip 1, respectively, and the punches 8a, 8b vibrate in the thickness direction. The vibrations of the punchers 8a and 8b are ultrasonic vibrations caused by ultrasonic generators. In addition, the punches 8a, 8b and the punching frames 9a, 9 can slide in the thickness direction of the amorphous metal strip.

One thin amorphous metal strip is clamped by the punching frames 9a, 9b and the punching machines 8a, 8b. In this state, the punches 8a, 8b are ultrasonically vibrated, and repeated fatigue due to the vibration is applied to the sliding portion of the punch frame and the punch. Thereafter, the punching machines 8a, 8b were operated under the condition of a load of 1400N without changing the ultrasonic vibration of the punching machines 8a, 8b, and punching was performed. According to this processing method of machining the amorphous metal ribbon while vibrating, the amorphous metal ribbon is obtained in which the side surface of the ribbon is machined.

15 is a photograph of the processed surface (side surface) of the amorphous metal ribbon obtained in Example 4. FIG. The magnification is 500 times. FIG. 16 is a schematic diagram of FIG. 15 . In the figure, it can be confirmed that the sheared surface has oblique machining marks at the central portion in the thickness direction of the ribbon.

In this amorphous metal ribbon, the fracture surface occupies 73.4% of the machined surface (side surface) of the ribbon.

For comparison, a machined amorphous metal strip was obtained in the same manner as in Example 4 except that the punches 8a and 8b were not vibrated.

Fig. 17 is a photograph of the processed surface (side surface) of the obtained amorphous metal ribbon. FIG. 18 is a schematic diagram of FIG. 17 . Generally, a cross section formed by punching includes a sag surface A (hatched portion), a sheared surface B (vertical line portion), a fractured surface C (white portion), and a burr D (gray portion).

However, unlike this embodiment, the amorphous metal ribbon for comparison has a flat profile on the sag side of the ribbon surface and is not corrugated. In addition, on the processed surface, the proportion of the fractured surface is less than 70% (46.2%), which is very small. In addition, in the processed surface, the proportion of the sheared surface is 48.0%.

In addition, in Example 4, the above-mentioned FeSiB-based soft magnetic amorphous metal ribbon was used, but the same effect can be expected by applying the present invention to the above-mentioned amorphous metal ribbon capable of nanocrystallization.

In addition, in the above-mentioned embodiment, it is also applicable to stop the ultrasonic vibration of the punchers 8a, 8b after repeated fatigue caused by applying vibration to the amorphous metal thin strip, that is, to make the amorphous metal thin strip Machining method with vibration followed by machining.

Explanation of reference signs

1: Amorphous metal thin strip

2: Coil

3: AC power

4: Amplifier

5: Spool

6: Processing tools

7: Unwinding roller

8: Punch machine

9: Punch frame

10: Crack

11: crack

12: Cutting marks

A: slump

B: shear plane

C: fracture surface

D: Rough side.

Claims (17)

1. A processing method for an amorphous metal strip, characterized in that: The saturation magnetostriction of the amorphous metal thin strip is 5 ppm or more and the Vickers hardness HV is 700 or more, Cutting or punching is performed after vibrating the amorphous metal thin strip, or cutting or punching is performed while vibrating. 2. the processing method of amorphous metal strip as claimed in claim 1, is characterized in that: The vibrations are vibrations caused by the magnetostriction of the amorphous metal ribbon. 3. the processing method of amorphous metal strip as claimed in claim 1, is characterized in that: The frequency of the vibration is not less than 1 Hz and not more than 500 kHz. 4. the processing method of amorphous metal strip as claimed in claim 2, is characterized in that: The vibration is generated by applying an alternating magnetic field of 1 A/m or more to the thin amorphous metal strip. 5. the processing method of amorphous metal strip as claimed in claim 3, is characterized in that: The vibration is generated by applying an alternating magnetic field of 1 A/m or more to the thin amorphous metal strip. 6. the processing method of amorphous metal strip as claimed in claim 1, is characterized in that: For the amorphous metal thin strip, a portion to which vibration is locally applied by a processing tool is cut or punched. 7. the processing method of amorphous metal strip as claimed in claim 6, is characterized in that: The processing tool includes a puncher and a punching frame capable of clamping the upper and lower surfaces of the amorphous metal strip, At least one of the puncher and the punching frame can slide in the thickness direction of the amorphous metal strip, The upper and lower surfaces of the amorphous metal thin strip are clamped by the puncher and the punching frame, and at least one of them vibrates in the thickness direction, and at the position of the amorphous metal thin strip The puncher and the sliding portion of the punching frame vibrate the amorphous metal thin strip, and the puncher performs punching on a portion subjected to repeated fatigue by the vibration. 8. The method for processing the amorphous metal strip according to any one of claims 1 to 7, characterized in that: The thin strip of amorphous metal is in the shape of a strip, Cutting or punching is performed on the amorphous metal thin strip while being conveyed in the long direction. 9. The method for processing the amorphous metal strip according to any one of claims 1 to 7, characterized in that: The amorphous metal strip mainly contains Fe produced by roll cooling. 10. The method for processing an amorphous metal strip according to any one of claims 1 to 7, characterized in that: The thickness of the amorphous metal strip is not less than 5 μm and not more than 70 μm. 11. A method for manufacturing a laminate, characterized in that: An amorphous metal ribbon processed by the method for processing an amorphous metal ribbon according to any one of claims 1 to 10 is laminated. 12. An amorphous metal thin strip, processed according to the processing method of the amorphous metal thin strip according to any one of claims 1 to 10, it has a processing surface of the thin strip by cutting or processing Shear planes formed by punching, the thin strip of amorphous metal is characterized by: On the processed surface, the contour of the strip surface on the side of the sag side has a corrugated shape. 13. The thin strip of amorphous metal according to claim 12, characterized in that: The corrugated profile has irregularities at an average period of 0.1 to 20 μm. 14. The thin strip of amorphous metal according to claim 12, characterized in that: On the processing surface, the shearing surface occupies more than 40% of the area. 15. The thin strip of amorphous metal according to claim 13, characterized in that: On the processing surface, the shearing surface occupies more than 40% of the area. 16. The thin strip of amorphous metal according to any one of claims 12-15, characterized in that: The profile of the sag side of the shear surface has a corrugated pattern relative to the profile of the sag side of the ribbon surface. 17. An amorphous metal thin strip, processed according to the processing method of the amorphous metal thin strip according to any one of claims 1 to 10, it has a processing surface of the thin strip by cutting or processing Shear planes formed by punching, the thin ribbon of amorphous metal is characterized by: On the processed surface of the thin strip after cutting or punching, the fracture surface occupies 50% or more of the area.

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