JPH0355088A - Manufacture of external cutting edge - Google Patents

Abstract

PURPOSE:To contrive a peeling-off process like an electrotyping process and a plasticity process like a press-punching process, not to be performed dy forming the cutting edge section of an external cutting edge in a process separated from that for forming the cutting edge hole of the external cutting edge, and by forming the cutting edge section with the lamination of members different from those of a section for forming the cutting edge hole. CONSTITUTION:Sections forming cutting edge sections 4 are exposed with a mask, and exposure is performed. After that, resists 6 are removed from the exposed sections. Then, in order to form the cutting edge sections 4 to be projected from cutting edge hole forming sections 10, accumulated objects 11 are vaporized or plated to be laminated. The laminating method may be the wet type method of electrical pl ting and vacuum vaporization, and the dry type method of spattering, ion-plating, and the like. After that, the resists 6 are removed, and the cutting edge sections 4 are formed oil the peripheral sections of cutting edge holes 3, and the internal sides of the cutting edge sections 4 are to be recessed relief sections 2. As a result, a peeling-off process like an electrotyping process and a plasticity process like a press-punching process are not performed, and internal stress is not generated on an external cutting edge A, and distortion is extremely suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application 1 The present invention relates to a method for manufacturing an outer cutter, and more specifically to a technique for solving the problems of a manufacturing method using electric bait and a manufacturing method using press punching. It is something.

[Prior art 1] As shown in FIG. 5, an outer knife A has a relief part 2 formed on the surface that makes sliding contact with the inner knife 1 and a cutting edge part 4 around the blade hole 3.
There are two methods of manufacturing such as the electric hook method and the press punching method.

[Problems to be Solved by the Invention] Fig. 6 shows a processing principle diagram of the electroplating method, in which the substrate (electrical mold) is an aluminum conductor 5, and an organic lenost 6 coated on this to prevent electrodeposition. , Cry 2 is electrodeposited in places where there is no Renost 6, and is used to easily peel off the primary electrodeposited part 7 to form the relief part 2 of the outer blade A, and the secondary electrodeposited part 8 that will become the outer blade A. The Kagaru Densen construction method has the following drawbacks.

1) Since the secondary electrodeposition part 8 is mechanically peeled off, stress is applied to the secondary electrodeposition layer 8gA, which becomes the product, and plastic deformation is likely to occur.

2) The member forming the blade hole 3 and the member forming the cutting edge portion 4 are made of the same material, and each 8! being constrained in improving their abilities.

3) In order to peel off the secondary t-applied portion 8, the primary electrodeposited portion 7 is likely to be detached or chipped, resulting in a short service life on the base material side.

Next, using the original machining pattern of the press-punching method as a diagram, the outer blade member is subjected to uneven plastic processing using metal-metal or metal-rubber, etc., followed by grinding along the grinding line L, followed by heat treatment. The aim is to improve the strength of the material. This press punching method has the following drawbacks.

1) Since the unevenness of the outer blade is done by press punching, internal stress is multiplied in the material, and thermal stress from grinding and heat treatment is also added, which also generates internal stress, which causes distortion in the outer blade A. are likely to occur frequently.

2) The member forming the blade hole 3 and the member forming the cutting edge portion 4 are made of the same material, and are used as a ladle to improve their respective functions.

3) The processing cost of the mold for press punching is high.

The present invention was made in view of such problems,
The purpose of this is to solve the problems of the electric punching method and press punching method, to suppress the occurrence of distortion without creating internal stress, and in particular to improve the hole forming part and cutting edge part that form the blade hole. A method for manufacturing an outer cutter that allows the cutting edge forming part to be made of a different material, and that allows the use of optimal materials that enhance the cutting performance of each member, in other words, provides an outer cutter that is flexible, sharp, and has little wear. Our goal is to provide the following.

[? Solution to Problem A Vi1 The method for manufacturing an outer cutter of the present invention is to produce an outer cutter A in which a relief part 2 is formed on the surface that comes into sliding contact with the inner cutter 1 and a cutting edge part 4 is provided around the cutter hole 3.
The cutting edge part 4 of the outer blade is formed in a separate process from the formation of the blade hole 3 of the outer blade A, and is formed by laminating a different member from the blade flower shape tI1 part 10. be.

[Function] In this way, the cutting edge portion 4 of the outer cutter is formed in a separate process from the formation of the cutter hole 3 of the outer cutter A, and is formed by laminating a member different from the cutter hole forming portion 10. , the cutting edge part 4 is formed by lamination, and the relief part 2 is also formed by such m layers, and there is no peeling process like the electroforming method, and
There is no need to perform plastic working as in the press punching method, no internal stress is generated in the outer cutter A, distortion is largely suppressed, and in particular, a separate member from the blade hole forming part 10 is laminated. By forming the cutting blade 4 into the shape 1&, the blade hole forming part 10 and the cutting blade shape part are made of different materials, and it is possible to combine materials that improve the 8!1 performance of each, for example, flexible It is durable, sharp, and has minimal wear.

[Examples] Examples of the present invention will be described in detail below based on the drawings. Figures 1 (.) to (j) show the steps of the present invention.
The material of the blade hole forming part 10 is steel, and a resist 6 is applied to the upper and lower surfaces as shown in FIG. 1(.). Next, as shown in FIG. 1(b), exposure is performed through a mask of the pattern of the cutter holes 3 of the outer cutter A.Next, the lenost 6 is removed as shown in FIG. 1(+-). As a result, the rennost 6 in the area corresponding to the blade hole 3 is removed, and chemical etching is performed from the upper and lower surfaces as shown in FIG. 1(d) to form the blade hole 3. Then the first
In order to remove all of the lenost 6 and form the cutting edge 4 as shown in FIG. 1(e), first, lenost 6 is applied to the entire surface as shown in FIG. 1(f). Then, as shown in FIG. 1(g), the portion where the cutting edge portion 4 is to be formed is exposed using a mask and exposed. Thereafter, as shown in FIG. 1 (11), the renost 6 at the exposed area is removed. In order to form the cutting edge portion 4 so as to protrude from the blade hole forming portion 10, a deposit 11 is deposited or plated and laminated. This deposition (layering) method includes
A wet method such as AL-hemenki and a dry method such as vacuum evaporation, sputtering, and ion plating may be used. Next, Kr
．． I Ci! ](j), remove Renost 6,
A cutting edge portion 4 is formed on the periphery of the blade hole 3, and the inside of the cutting edge portion 4 forms four large relief portions 2.

In this way, there is no peeling process like the electroforming method, no plastic working like the press punching method, no internal stress is generated in the outer cutter A, and distortion is greatly reduced. It is suppressed to

Then, a member different from the blade hole forming part 10 is laminated to form the cutting blade part 4.
By forming the blade flower forming part 10 and the cutting edge forming part using different materials, it is possible to combine materials that improve the rock performance of each. In other words, if the deposit 11 is made of a ceramic layer such as TiN, TiCN, CrzO, etc., the blade will have a very high hardness and will not wear easily, suppressing the wear of the edge of the blade, and dramatically improving the cutting life. . The blade hole forming part 10 is made of steel with a low carbon content, for example, low carbon steel, with high elongation and low Young's modulus.
Visibility can be improved by making it narrower.

Then, as shown in Figure #S2, when the deposit 11 is laminated along the edge of the blade hole forming part 10, the angle of contact with the skin 12 increases from 01 to 02, the texture becomes smooth, and θ2 increases. As a result, there is less chipping and wear on the cutting edge, and the life of the cutting edge can be extended.

FIG. 3 shows another form, in which the deposit 11 is moved inward from the edge part of the blade hole forming part 10 to form a stepped part 13, and as shown in FIG. edge part 1
The beard 14 is hooked at 0a to prevent slippage between the beard 14 and the beard 14, and the beard 14 can be cut with the hair roots protruding.

[Effects of the Invention 1] In summary, the present invention involves forming the cutting edge portion of the outer cutter in a separate process from forming the cutter hole of the outer cutter, and by laminating a separate member from the cutter hole forming portion. , the cutting edge part is formed by lamination, and the relief part can also be formed by such lamination, there is no peeling process like the electric first method, and plastic working like the press punching method is performed. There is no internal stress in the outer cutter, and distortion can be greatly suppressed. In particular, since the cutting edge is formed by laminating a different material from the hole forming part, the cutter hole is The forming part and the cutting edge shape part can be made of different materials, and each 8! This makes it possible to select and combine materials that improve performance, and for example, there is the advantage of being able to obtain an outer blade that is flexible, sharp, and has less wear.

[Brief explanation of drawings]

Figures 1 (.) to (j) are cross-sectional views showing the steps of the manufacturing method of the present invention, Figure 2 is an enlarged cross-sectional view of the completed product, and Figure 3 is an enlarged cross-sectional view of another form of the same. , FIG. 4 is a cross-sectional view showing the shaving action of the same as above, and FIG. 5 is a cross-sectional view of the outer blade of the conventional example.
Figure 6 is a principle diagram of the electroforming method of the conventional example of the same as above, and Figure fJS7 is a principle diagram of the press punching method of the conventional example of the same as above, 1 is the inner blade, 2 is the relief part, 3 is the blade hole, and 4 is the principle diagram. This is the cutting edge.

Claims (1)

[Claims] (1) In the external force where a relief part is formed on the surface that makes sliding contact with the inner blade and a cutting edge is provided around the blade hole, the formation of the cutting edge of the outer blade is a separate process from the formation of the blade hole of the outer blade. A method of manufacturing an outer cutter, characterized in that the outer cutter is formed by laminating a member different from the cutter hole forming part.