JP5843280B2 - Composite material cutting method - Google Patents

Composite material cutting method Download PDF

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JP5843280B2
JP5843280B2 JP2011202318A JP2011202318A JP5843280B2 JP 5843280 B2 JP5843280 B2 JP 5843280B2 JP 2011202318 A JP2011202318 A JP 2011202318A JP 2011202318 A JP2011202318 A JP 2011202318A JP 5843280 B2 JP5843280 B2 JP 5843280B2
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blade
cutting
composite material
tool
back surface
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文哉 中嶋
文哉 中嶋
小林 立弥
立弥 小林
優太 小谷
優太 小谷
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Komatsu NTC Ltd
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Description

本発明は、片刃形式の刃物に超音波振動を与えながら刃物を裁断方向に移動させて複合材料を裁断する方法に関する。   The present invention relates to a method for cutting a composite material by moving a blade in a cutting direction while applying ultrasonic vibration to a blade of a single blade type.

複合材料、例えば炭素繊維の組織に樹脂を含浸させた平板状の材料は、軽量で充分な強度を有することから、航空機などの機体材料などとして活用されている。その複合材料の裁断は、特許文献1や特許文献2に開示されているように、ゴム製品や光ファイバーなどと同様に、刃物に超音波振動を与えながら、刃物を裁断方向に移動させることによって良好な裁断面のもとに切断される。   A composite material, for example, a flat plate material in which a carbon fiber structure is impregnated with a resin is light and has sufficient strength, and thus is utilized as an airframe material for an aircraft or the like. As disclosed in Patent Document 1 and Patent Document 2, the cutting of the composite material is good by moving the blade in the cutting direction while applying ultrasonic vibration to the blade, like rubber products and optical fibers. It is cut under a proper cut surface.

通常、刃物は、多軸制御可能な加工機の加工ヘッドに取り付けられ、複合材料に対して裁断線に沿って相対的に移動するように制御される。複合材料の裁断工程において、複合材料に対する刃物の姿勢から、垂直な裁断面となる垂直裁断と、斜めの裁断面となる斜め裁断とがある。作業の能率の観点から、刃物の交換をしないまま、それらの垂直裁断と斜め裁断とを行うとき、斜め裁断は片刃でしか対応できないことから、刃物は、共用可能な片刃を採用する。   Usually, the blade is attached to a processing head of a processing machine capable of multi-axis control, and is controlled to move relative to the composite material along a cutting line. In the cutting process of the composite material, there are a vertical cutting that becomes a vertical cutting surface and an oblique cutting that becomes an oblique cutting surface depending on the posture of the cutter with respect to the composite material. From the viewpoint of work efficiency, when performing the vertical cutting and the oblique cutting without exchanging the blades, since the oblique cutting can be handled only with one blade, the blade uses a sharable single blade.

ところが、片刃の刃物を使用するときに、垂直裁断の過程において、刃物の刃付け面が複合材料の裁断面から刃付け面の裏すなわち刃裏面の方向の力を受けるため、刃物が裁断負荷に負けてしまい、刃物が曲がって、裁断寸法が裁断後の製品の狙いの寸法よりも小さくなり、狙いの寸法が確保できなくなる。このような現象は、多軸制御可能な工作機械を用い、加工ヘッドで刃物工具を支えながら刃物を裁断方向に移動させるときにも同様に起きる。   However, when using a single-edged blade, the cutting surface of the blade receives the force in the direction of the back of the cutting surface, that is, the back of the blade, from the cut surface of the composite material in the vertical cutting process. The blade is bent, the blade is bent, and the cutting dimension becomes smaller than the target dimension of the product after cutting, and the target dimension cannot be secured. Such a phenomenon also occurs when using a machine tool capable of multi-axis control and moving the cutter in the cutting direction while supporting the cutter tool with the machining head.

特開平10−217193公報JP-A-10-217193

特開2003−48191公報JP 2003-48191 A

したがって、本発明の課題は、刃物工具に超音波振動を与えながら片刃形式の刃物により複合材料を垂直に裁断するときに、裁断寸法を狙いの寸法に正確に裁断できるようにすることである。   Accordingly, an object of the present invention is to make it possible to accurately cut a cutting dimension to a target dimension when cutting a composite material vertically with a single-edged blade while applying ultrasonic vibration to the blade tool.

上記の課題のもとに、本発明は、片刃形式の刃物に超音波振動を与えながら平板状の複合材料を垂直に裁断する裁断方法において、前記複合材料に対して前記刃物を垂直に設定し、前記刃物の刃裏面を裁断する製品側とし、裁断方向の前側の刃先を裁断線上に位置させるとともに、前記刃物の裁断方向の後ろ端を裁断線よりも製品寄りに変位させて、前記裁断線と前記刃裏面との間に開き角を設定しておき、裁断時に、前記複合材料と前記刃物とを前記裁断線にそって相対的に移動させる過程で、前記刃物の刃付け面に作用する力と前記刃裏面に作用する力とを相殺するようにしている(請求項1)。 Based on the above problems, the present invention provides a cutting method in which a flat plate-shaped composite material is cut vertically while applying ultrasonic vibration to a single-edged blade. The cutting edge of the blade is the product side to be cut, the cutting edge in the cutting direction is positioned on the cutting line, and the cutting edge of the cutting direction is displaced closer to the product than the cutting line, the cutting line An opening angle is set between the blade and the blade back surface, and when cutting, the composite material and the blade are moved relative to the cutting line and act on the cutting surface of the blade. The force and the force acting on the back surface of the blade are offset (claim 1).

特に、本発明は、上記複合材料の裁断方法において、裁断時に、前記複合材料と前記刃物とを前記裁断線にそって相対的に移動させる過程で、前記刃付け面に作用する力と前記刃裏面に作用する力とを等しくないしほぼ等しくし、前記刃物の刃付け面に作用する力と前記刃裏面に作用する力とを相殺することにより、前記刃物工具の支え部分の保持力を可能な限り小さくしている(請求項)。 In particular, the present invention provides the above-described method for cutting a composite material, in the process of relatively moving the composite material and the blade along the cutting line at the time of cutting , the force acting on the blade attachment surface and the blade by to unequal and forces acting on the rear surface and substantially equal, to offset the force acting on the blade back faces and the forces acting on the sharpened surface of the blade, which enables the retention of supporting part of the edge tool As small as possible (Claim 1 ).

さらに、本発明は、上記複合材料の裁断方法において、前記刃物を移動方向に前傾させて、前記複合材料に作用する前記前側の刃先の刃先角を前記刃物の中心線に対する垂直な断面の刃先角よりも鋭角化している(請求項)。 Furthermore, the present invention provides the cutting method of the composite material, wherein the blade is tilted forward in the moving direction, and the blade edge angle of the front blade edge acting on the composite material is a blade edge having a cross section perpendicular to the center line of the blade. It is sharper than the corner (Claim 2 ).

本発明に係る複合材料の裁断方法によると、片刃形式の刃物が刃裏面で製品の裁断面に対向するから、垂直な裁断面となる垂直裁断のほかに、斜めの裁断面となる斜め裁断にも刃物の交換をしないまま対応可能であり、しかも、刃物の超音波振動によって、裁断後に良好な裁断面が得られ、また、前記刃物の裁断方向の後ろ端を裁断線よりも製品寄りに変位させて、前記裁断線と前記刃裏面との間に開き角を設定しておき、裁断時に、前記刃物の刃付け面に作用する力と前記刃裏面に作用する力とを相殺するようにしているため、裁断過程で刃物が製品側に曲がることを抑えられ、裁断寸法が狙いの寸法に裁断でき、裁断の精度が向上し、しかも刃物工具の支え部分に大きな力が作用せず、刃物の移動制御が容易となるほか、刃物工具への負担が軽減され、その寿命が従来よりも延長させられることにもなる(請求項1)。 According to the cutting method of the composite material according to the present invention, since the single-edged blade is opposed to the cut surface of the product on the back surface of the blade, in addition to the vertical cutting that becomes the vertical cutting surface, the diagonal cutting that becomes the diagonal cutting surface. Can be handled without exchanging the blade, and the ultrasonic vibration of the blade provides a good cut surface after cutting, and the rear end of the cutting direction of the blade is displaced closer to the product than the cutting line. The opening angle is set between the cutting line and the blade back surface so that the force acting on the blade attaching surface of the blade and the force acting on the blade back surface are offset at the time of cutting. Therefore, the cutting tool can be prevented from bending to the product side in the cutting process, the cutting dimension can be cut to the target dimension, the cutting accuracy is improved, and no great force acts on the support part of the cutting tool, In addition to ease of movement control, negative There is reduced, its lifetime is also be caused to extend over conventional (claim 1).

特に、上記複合材料の裁断方法において、刃付け面に作用する力と刃裏面に作用する力とが等しくないしほぼ等しくなっておれば、刃物工具の支え部分の保持力を可能な限り小さくでき、刃物移動抵抗が小さくなり、その移動制御が一層容易となる(請求項)。 In particular , in the cutting method of the composite material, if the force acting on the blade attachment surface and the force acting on the blade back surface are equal or substantially equal, the holding force of the support portion of the blade tool can be made as small as possible, The knife movement resistance is reduced, and the movement control is further facilitated (Claim 1 ).

さらに、上記複合材料の裁断方法において、前記刃物の適当な前傾によって、複合材料に作用する刃先角が実質的に鋭角化するから、前記刃物の裁断能力が一層高められる(請求項)。 Furthermore, in the cutting method of the composite material, the blade tip angle acting on the composite material is substantially sharpened by an appropriate forward tilt of the blade, so that the cutting ability of the blade can be further enhanced (Claim 2 ).

本発明の前提となる刃物工具であり、(1)はその側面図、(2)はその垂直断面図、(3)は刃物工具の水平断面図である。1 is a side view, (2) is a vertical sectional view thereof, and (3) is a horizontal sectional view of the cutter tool. 5軸制御の工作機械の加工ヘッドに刃物工具を取り付けた状態のスケルトン側面図である。It is a skeleton side view of the state which attached the blade tool to the processing head of the 5-axis control machine tool. 本発明に係る複合材料の裁断方法にもとづいて刃物工具により複合材料を裁断するときの平面図である。It is a top view when cut | disconnecting a composite material with a cutter tool based on the cutting method of the composite material which concerns on this invention. 本発明に係る複合材料の裁断方法にもとづいて刃物工具により複合材料を裁断するときの垂直断面図である。It is a vertical sectional view when cutting a composite material with a blade tool based on the method for cutting a composite material according to the present invention. 本発明に係る複合材料の裁断方法にもとづいて刃物工具により複合材料を裁断するときに、刃物工具に作用する力の説明図である。It is explanatory drawing of the force which acts on a cutter tool, when cutting a composite material with a cutter tool based on the cutting method of the composite material which concerns on this invention. 本発明に係る複合材料の裁断方法にもとづいて刃物工具により複合材料を裁断するときに刃物工具を前傾させた状態の側面図である。It is a side view of the state which inclined the blade tool forward when cutting a composite material with a blade tool based on the cutting method of the composite material concerning the present invention.

図1は、本発明の前提となる刃物工具1を示している。この図1において、刃物工具1は、刃物2と、この刃物2を保持する保持具3とからなる。刃物2は、全体として断面台形であり、刃表面4の前後の端縁で刃付け面5を有している。このように、刃物2は、前後の刃付け面5の先端で刃先7を形成しているが、刃表面4の裏側の刃裏面6で刃付け面5を有していないため、片刃形式の刃物となっている。   FIG. 1 shows a cutting tool 1 which is a premise of the present invention. In FIG. 1, a blade tool 1 includes a blade 2 and a holder 3 that holds the blade 2. The blade 2 has a trapezoidal cross section as a whole, and has a blade attachment surface 5 at front and rear edges of the blade surface 4. As described above, the blade 2 forms the cutting edge 7 at the tips of the front and rear cutting surfaces 5, but does not have the cutting surface 5 on the back surface 6 on the back side of the blade surface 4. It is a knife.

刃物2は、ホーン8によって保持具3の内部に組み込まれている超音波振動子9に連結されている。超音波振動子9は、裁断時に、図示しない発振器からの超音波電力により駆動され、ホーン8を介して、刃物2に20〜40kHzの振動を与える。このとき刃物2は、その長手方向において10〜70μmの振幅で振動をする。   The blade 2 is connected by a horn 8 to an ultrasonic vibrator 9 incorporated in the holder 3. The ultrasonic vibrator 9 is driven by ultrasonic power from an oscillator (not shown) at the time of cutting, and gives a vibration of 20 to 40 kHz to the blade 2 via the horn 8. At this time, the blade 2 vibrates with an amplitude of 10 to 70 μm in the longitudinal direction.

図2は、刃物工具1を多軸制御、例えば6軸制御可能な加工機の加工ヘッド10に取り付けた状態を示している。図2において、加工機は、その運動機能によって、加工ヘッド10をXYZ座標の直行3軸としてのX軸方向、Y軸方向およびZ軸方向に移動させるとともに、加工ヘッド10を回転3軸としてのZ軸方向に平行なC軸の周り、Z軸方向に対して45度のA軸の周り、およびC軸上のB軸の周りに回転させ、加工ヘッド10および刃物工具1を裁断に適切な姿勢に設定し、刃物工具1と裁断対象の平板状の複合材料11との間で、刃物2を裁断方向に相対的に移動させて、複合材料11から製品13を裁断する。例示の加工ヘッド10は、一点指向型の加工ヘッドであるが、B軸(C軸)の中心線上から偏心した位置においてオフセット型の加工ヘッドとして構成することもできる。   FIG. 2 shows a state in which the blade tool 1 is attached to a machining head 10 of a machine capable of multi-axis control, for example, 6-axis control. In FIG. 2, the processing machine moves the processing head 10 in the X-axis direction, the Y-axis direction, and the Z-axis direction as the orthogonal three axes of the XYZ coordinates by the movement function, and the processing head 10 as the three rotation axes. Rotate around the C-axis parallel to the Z-axis direction, around the A-axis of 45 degrees with respect to the Z-axis direction, and around the B-axis on the C-axis, so that the machining head 10 and the cutting tool 1 are suitable for cutting. The product is cut from the composite material 11 by setting the posture and relatively moving the blade 2 in the cutting direction between the blade tool 1 and the flat plate-shaped composite material 11 to be cut. The illustrated machining head 10 is a one-point-oriented machining head, but can also be configured as an offset machining head at a position eccentric from the center line of the B axis (C axis).

なお、複合材料11は、通常、樹脂またはアルミニューム製の裁断型14の上の図示しないカッテングボードの上に載置され、図示しないフイルムで覆い、空気引き(真空吸引)によって裁断型14の上に固定される。裁断時に、刃物2は、フイルムとともに複合材料11を裁断することになる。   The composite material 11 is usually placed on a cutting board (not shown) on a cutting die 14 made of resin or aluminum, covered with a film (not shown), and then on the cutting die 14 by air drawing (vacuum suction). Fixed to. At the time of cutting, the blade 2 cuts the composite material 11 together with the film.

図3および図4は、垂直裁断に際して、平板状の複合材料11に対する刃物工具1の刃物2の姿勢を例示している。図3および図4において、刃物2は、複合材料11の裁断面を複合材料11の上下面に対して垂直(直角)とするために、Z軸方向に立て、XY平面上の複合材料11に対して刃物2の刃裏面6を垂直に設定される。   3 and 4 illustrate the posture of the blade 2 of the blade tool 1 with respect to the flat plate-like composite material 11 during vertical cutting. 3 and 4, the blade 2 stands in the Z-axis direction so that the cut surface of the composite material 11 is perpendicular (perpendicular) to the upper and lower surfaces of the composite material 11, and is formed on the composite material 11 on the XY plane. On the other hand, the blade back surface 6 of the blade 2 is set to be vertical.

そして、本発明に係る複合材料の裁断方法は、片刃形式の刃物2に超音波振動を与えながら複合材料11に対して刃物2を垂直に設定し、刃物2の刃裏面6を裁断しようとする製品13側とし、裁断方向の前側の刃先7を裁断線12上に位置させるとともに、刃物2の裁断方向の後ろ端を裁断線12よりも製品13寄りに変位させて、裁断線12と刃裏面6との間に開き角θを設定しておき、裁断時に、複合材料11と刃物2とを裁断線12にそって相対的に移動させる過程で、刃物2の刃付け面5に作用する力と刃裏面6に作用する力とを相殺するようにしている。裁断の前から終了までの期間において、製品13は、真空吸引によって裁断型14の上に固定されているが、刃表面4側の複合材料11すなわち破材15は、裁断と同時に吸引解除の状態となり、裁断方向の前側の刃付け面5にそって切り離される。   And the cutting method of the composite material which concerns on this invention tries to cut | disconnect the blade back surface 6 of the blade 2 by setting the blade 2 perpendicularly | vertically with respect to the composite material 11, giving ultrasonic vibration to the blade 2 of a single blade type | mold. On the product 13 side, the cutting edge 12 on the front side in the cutting direction is positioned on the cutting line 12, and the rear end of the cutting direction of the cutter 2 is displaced closer to the product 13 than the cutting line 12, so that the cutting line 12 and the back surface of the blade A force acting on the cutting surface 5 of the blade 2 in the process of moving the composite material 11 and the blade 2 relative to each other along the cutting line 12 at the time of cutting. And the force acting on the blade back surface 6 are offset. In the period from before cutting to the end, the product 13 is fixed on the cutting die 14 by vacuum suction, but the composite material 11 on the blade surface 4 side, that is, the broken material 15 is in a state of releasing suction simultaneously with the cutting. And cut along the cutting edge 5 on the front side in the cutting direction.

図5は、裁断時に、刃付け面5に作用する力と刃裏面6に作用する力との関係を示している。裁断線12と刃裏面6との間に開き角θが設定されており、複合材料11と刃物2とを裁断線12にそって相対的に移動させたとき、そのときの移動抵抗として移動方向の前側の刃付け面5に加わる力F1とし、刃裏面6に加わる力F2とする。   FIG. 5 shows the relationship between the force acting on the blade attachment surface 5 and the force acting on the blade back surface 6 during cutting. An opening angle θ is set between the cutting line 12 and the blade back surface 6, and when the composite material 11 and the blade 2 are moved relatively along the cutting line 12, the moving direction is a moving resistance at that time. The force F1 applied to the front blade attachment surface 5 and the force F2 applied to the blade back surface 6 are defined as F1.

刃付け面5に加わる力F1によって、刃付け面5に垂直な分力のX方向の分力F1xが作用し、裁断時に刃付け面5に複合材料11が接触する面積A1とすると、刃付け面5にかかる力ρ1は、ρ1=F1x×A1となる。また、刃裏面6に加わる力F2によって、刃裏面6に垂直な分力のX方向の分力F2xが作用し、刃裏面6に複合材料11が接触する面積A2とすると、刃裏面6にかかる力ρ2は、ρ2=F2x×A2となる。   If the force F1 applied to the blade surface 5 causes a component force F1x in the X direction, which is a component force perpendicular to the blade surface 5, to act as an area A1 where the composite material 11 contacts the blade surface 5 during cutting. The force ρ1 applied to the surface 5 is ρ1 = F1x × A1. Further, the force F2 applied to the blade back surface 6 causes a component force F2x in the X direction perpendicular to the blade back surface 6 to act, and the area A2 where the composite material 11 contacts the blade back surface 6 is applied to the blade back surface 6. The force ρ2 is ρ2 = F2x × A2.

ここで、一般に、F1x>F2x、A1<A2であるが、ρ1=ρ2であれば、それらの力は完全に相殺されるため、刃物2は、X方向の力を殆ど受けず、裁断線12に沿って移動することになり、刃物工具1の支え部分の保持力も可能な限り小さくできる。この結果、裁断寸法を狙いの寸法に裁断でき、裁断の精度が向上し、しかも刃物工具の支え部分に大きな力が作用せず、刃物移動制御が容易となるほか、刃物工具への負担が軽減でき、その寿命が延長できる。しかも、刃物2の超音波振動によって、製品13に良好な裁断面が得られる。 Here, in general, F1x> F2x and A1 <A2, but if ρ1 = ρ2, these forces are completely canceled out, so that the blade 2 receives almost no force in the X direction, and the cutting line 12 The holding force of the support portion of the blade tool 1 can be made as small as possible. As a result, the cutting size can be cut to the target size, the cutting accuracy is improved, a large force does not act on the support portion of the blade tool 1 , the blade movement control is facilitated, and the load on the blade tool 1 is reduced. Can be reduced and its life can be extended. Moreover, a good cut surface can be obtained in the product 13 by the ultrasonic vibration of the blade 2.

それらの力ρ1、ρ2が完全に等しくならなくても、相殺の結果、X方向の力が打ち消し合って小さくなり、その小さな力に抗して刃物2が支持されるならば、刃物2は、裁断線12から大きく反れることはなくなる。 Those forces .rho.1, even ρ2 are not become completely equal, the result of the cancellation, decreases cancel each other force in the X direction, if cutter 2 is supported against its small force, blade 2, There is no significant warping from the cutting line 12.

実際には、複合材料11の切れ易さ、複合材料11の固定方法、裁断位置での複合材料11の弾性変形あるいは塑性変形のときの逃げ方、システム全体の剛性などによって、力の加わり方が変わり、開き角θも変化するため、単純に計算だけで、開き角θを求めることは困難である。このため、開き角θは、刃物2を用いて複合材料11を実際に裁断しながら調整し、最も有効な角度値として設定される。一般に、開き角θは、刃物工具1や複合材料10、裁断条件によるが、通常2〜6度の範囲に設定される。   Actually, how the force is applied depends on how easily the composite material 11 is cut, how to fix the composite material 11, how to escape the elastic deformation or plastic deformation of the composite material 11 at the cutting position, and the rigidity of the entire system. Since the opening angle θ changes, it is difficult to obtain the opening angle θ simply by calculation. For this reason, the opening angle θ is adjusted while actually cutting the composite material 11 using the blade 2, and is set as the most effective angle value. In general, the opening angle θ is usually set in the range of 2 to 6 degrees, although it depends on the blade tool 1, the composite material 10, and the cutting conditions.

さらに図6に例示するように、刃物2を移動方向に前傾させ、前傾角αを設定すれば、図6の(1)のように、複合材料11に作用する前側の刃先7の刃先角β(複合材料11の平面での刃先7の断面角度)は、図6の(2)のような刃物2の中心線に対する垂直面での刃先7の断面角度)よりも実質的に鋭角化する。この結果、刃物2の裁断能力は一層高められる。   Further, as illustrated in FIG. 6, if the blade 2 is tilted forward in the moving direction and the forward tilt angle α is set, the blade edge angle of the front blade edge 7 acting on the composite material 11 as shown in FIG. 6 (1). β (the cross-sectional angle of the cutting edge 7 in the plane of the composite material 11) is substantially sharper than the cross-sectional angle of the cutting edge 7 in a plane perpendicular to the center line of the blade 2 as shown in FIG. . As a result, the cutting ability of the blade 2 is further enhanced.

なお、既述のように、刃物工具1は、垂直裁断のほかに、斜め裁断にも、工具交換をしないまま利用できる。斜め裁断のときに、刃物2は、斜め裁断の角度で傾斜状態に設定され、その角度を保ちながら複合材料11を裁断することになる。 As described above, the blade tool 1 can be used not only for vertical cutting but also for oblique cutting without changing the tool. At the time of oblique cutting, the blade 2 is set in an inclined state at an angle of oblique cutting, and the composite material 11 is cut while maintaining the angle.

本発明は、炭素繊維の組織に樹脂を含浸させた平板状の複合材料のほかに、同種の複合材料にも利用でき、開き角θは、既に記載したように、その複合材料や裁断条件毎に設定される。   The present invention can be used for the same kind of composite material in addition to a flat plate composite material in which a carbon fiber structure is impregnated with a resin, and the opening angle θ is as described above for each composite material and cutting conditions. Set to

1 刃物工具
2 刃物
3 保持具
4 刃表面
5 刃付け面
6 刃裏面
7 刃先
8 ホーン
9 超音波振動子
10 加工ヘッド
11 複合材料
12 裁断線
13 製品
14 裁断型
15 破材
θ 開き角
α 前傾角
β 刃先角
F1、F2 力
F1x、F2x 分力
DESCRIPTION OF SYMBOLS 1 Cutting tool 2 Cutting tool 3 Holding tool 4 Blade surface 5 Cutting surface 6 Blade back surface 7 Cutting edge 8 Horn 9 Ultrasonic vibrator 10 Processing head 11 Composite material 12 Cutting line 13 Product 14 Cutting die 15 Broken material θ Opening angle α Forward tilt angle β Cutting edge angle F1, F2 Force F1x, F2x Component force

Claims (2)

片刃形式の刃物に超音波振動を与えながら平板状の複合材料を垂直に裁断する裁断方法において、前記複合材料に対して前記刃物を垂直に設定し、前記刃物の刃裏面を裁断する製品側とし、裁断方向の前側の刃先を裁断線上に位置させるとともに、前記刃物の裁断方向の後ろ端を裁断線よりも製品寄りに変位させて、前記裁断線と前記刃裏面との間に開き角を設定しておき、裁断時に、前記複合材料と前記刃物とを前記裁断線にそって相対的に移動させる過程で、前記刃付け面に作用する力と前記刃裏面に作用する力とを等しくないしほぼ等しくし、前記刃物の刃付け面に作用する力と前記刃裏面に作用する力とを相殺することにより、前記刃物工具の支え部分の保持力を可能な限り小さくする、ことを特徴とする複合材料の裁断方法。 In a cutting method in which a flat plate-shaped composite material is cut vertically while applying ultrasonic vibration to a blade of a single blade type, the blade is set perpendicular to the composite material, and the blade side of the blade is cut on the product side. The front edge of the cutting direction is positioned on the cutting line, and the rear end of the cutting direction of the cutter is displaced closer to the product than the cutting line to set an opening angle between the cutting line and the back surface of the blade In addition, in the process of relatively moving the composite material and the blade along the cutting line at the time of cutting, the force acting on the blade attachment surface and the force acting on the blade back surface are equal or almost equal. The holding force of the support part of the blade tool is made as small as possible by equalizing and canceling out the force acting on the blade attachment surface of the blade and the force acting on the blade back surface. Material cutting method. 前記刃物を移動方向に前傾させて、前記複合材料に作用する前記前側の刃先の刃先角を前記刃物の中心線に対する垂直な断面の刃先角よりも鋭角化する、ことを特徴とする請求項1記載の複合材料の裁断方法。
And tilted forward the blade in the direction of movement, claims wherein for acute reduction than the cutting edge angle of the cross section perpendicular to the cutting edge angle of the front of the cutting edge acting on the composite material with respect to the center line of the blade, characterized in that cutting method 1 Symbol placement of the composite material.
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