JP6550668B1 - Layered cutting edge member by alternate cutting type development and manufacturing method thereof - Google Patents

Abstract

An object of the present invention is to produce a cutting edge that is sharp and can be sharpened immediately. A hard and soft material is once welded in a flat state to produce a laminated material. Next, the laminated material is cut in a circle and cut in a direction crossing the laminated layer having a cross section, thereby forming an end face where the hard and soft materials repeatedly appear. Alternatively, by making uncut cuts 11 from both side surfaces of the cross section and opening the cuts, it is possible to obtain a vertically stacked long material in which hard and soft metals repeatedly appear on the top of the blade. [Selection] Figure 5

Description

  The present invention relates to a method of making a sharp knife.

There are existing types of blades in which metal plates are stacked, welded and welded, deformed and then polished to give a grainy pattern on the surface of the blade. In some cases, the core does not have a core at the center of the blade, and the laminated cross-section is the blade tip.

The following patent documents can be mentioned as a well-known technique regarding this invention.
Japanese Patent Application No. 2012-39453 Japanese Patent Application H63-92377 Japanese Patent Application No. 2017-008319 Japanese Patent Application No. 2017-235865 Japanese Patent Application No. 2010-4749

An object of the present invention is to manufacture a blade having a laminated structure of metal plates and a hard and soft material appearing at the blade edge.

In a metal lamination technique generally called clad, metal plates are stacked, heated to a high temperature, and welded and bonded by applying pressure from above. This is the upper figure of FIG. 2, and a typical Damascus blade is made in this form.

As shown in the lower part of the comparison diagram of FIG. 2, in order to make two or more materials having hardness and softness or strength against medicine appear alternately, regularly or randomly in the cutting edge portion of the cutter. A structure in which hard and soft, strong and weak metals are arranged in layers from the direction of the blade edge A of the blade to the direction B is preferable.
Such a shape is called vertical lamination.

Now, in the present technology, the maximum thickness that can be produced by lamination is said to be approximately 20 to 30 mm.
In order to make this horizontal lamination about 30 mm thick longitudinally laminated, after cutting what was once laminated | stacked, the method of rearranging them and welding can be considered.
However, it has been found that welding thin rod-like metal plates is very difficult and extremely difficult to manufacture.
However, it was also found that there is a method of switching to a vertically laminated plate by cutting the horizontally laminated plate several times.

  In the present invention, after cutting a horizontally laminated plate, one or a plurality of cuts are made, and the cut is widened and expanded to produce a long vertical laminated cutting edge member, and a powdery material is baked. A method of fabricating a layered blade tip member is described.

Kitchen knife or knife sketch Horizontal laminate material: Top and vertical laminate material: A sketch comparing the bottom Round laminated material: Cut the cutting line across the layers on the top and the round cut material: Medium, transverse cut, and the cutting edge member vertically stacked: A sketch comparing the bottom Horizontal laminated material cut into rounds: The top and the rounded ones that cross the laminated, but not cut, but the cut line that is not cut is inserted: The middle, laminated on the rounded ones Figure with a non-cutting score line across: Horizontally laminated board: Top, uncut cuts: Inside, a sketch comparing part of the development Comparison diagram showing the flow of unfolded cuts and unfolded ones, and the developed ones deformed into lines and bands A sketch that opens a part of the uncut notch in the laterally laminated material An uncut cut is made in a horizontally laminated board, and the figure is opened. Figure showing a long cross-laminated board with a non-cutting score line in the direction of the cross-lamination: top and non-cutting cut open: bottom Horizontally laminated board: Top, another example of non-cutting slits, spiral cuts placed: middle, spiral cut front view: bottom

DESCRIPTION OF SYMBOLS 1 Blade body a Length of blade edge b Height of blade edge Wear width Wear height c Width of blade edge AB Cutting direction 2 Cutting edge member 3 Handle 4 Plate 4 'shaped into horizontal lamination Cutting line 5 Cut into vertical lamination Plate 6 Cut and cut out of the transverse stack: Top 7 Cut and cut out member with cut and cut line across the transverse stack layer: 8 of the material from the transverse stack and cut and cut across the layer Vertically stacked cutting edge member 9 Theoretical non-cutting score line 9 'Practical example Non-cutting score line
10 Horizontal laminated material with non-cutting cuts along non-cutting cut lines
11 Partial cut
11 'A strip that is partly uncut and vertically stacked
We will develop 11 '' and 11 '''cuts
11 '''' Vertically laminated strip made by unfolding and pressing
12 Horizontally laminated board
13 Non-cutting score line put in the board of horizontal lamination
13 'Uncut and partially cut, open image
14 unlaid cut in the horizontal lamination, open figure
14 'Horizontally laminated strip that has been pressed flat and shaped flat
Another example of non-cutting cuts alternately inserted with 15 horizontal laminated material, example of spiral type cutting

Hereinafter, description will be made based on the drawings.

In the present invention, it is considered to form a longitudinally laminated band from a horizontally laminated sheet.

First, the horizontally laminated plate of FIG.
The cutting method is not limited, but it may be a wire saw, a band saw, a wire cutter, a diamond cutter, a laser, or a water jet cutter.
What was cut | disconnected corresponds to the upper figure in the comparison figure of FIG. This remains in a lateral stack.

However, if cutting as in 7 in FIG. 3 is performed here, the sliced and cut pieces 8 are formed in such a manner as to cross or cross the layers of the transversely laminated layer.
The height of the fragments corresponds to FIG. 1 b, the wear height of the blade, and the thickness corresponds to the thickness c of the blade.

If the thickness of the first horizontal stack is 30 mm, a fragment with a length of about 40 mm is produced when cut at an angle of 45 degrees.

The thickness can be attached to the tip of the blade by cutting and sharpening the thickness of the blade slightly larger than that of FIG.

A blade can be made by attaching one or more of these to the blade edge portion of the blade.

However, since the blade edge member is slightly smaller in size, it is necessary to attach two or more blade edge members in order to obtain an ordinary knife size.

It is not impossible to overlap the blade edge members, which have been shaped once, in the form of a plate and to bond them together. Moreover, it is not impossible to attach with argon welding or silver wax.
However, the above-mentioned process is time-consuming, and there may be problems such as whether the connecting part can be beautiful or the arrangement of the hard and soft cutting edges is beautiful, but it is not impossible.

In the process of changing from a generally existing horizontal lamination to a vertical lamination, the present invention does not cut but instead cut into the middle of the lamination, leaving one skin and turning it back. Consider the development by the method of cutting and cutting.
Here, a place where a plurality of non-cutting cuts are made in the members of the transverse lamination alternately until halfway is shown in the middle view and the lower view of FIG. 4.

In the diagram in FIG. 5, the uncut cut is made.
In the following figure, the figure which expanded a part of non-cutting notch part was shown.
Thus, in the lower part of FIG. 5, it can be seen that, by opening this non-cutting cut, it is possible to obtain a long longitudinally laminated band without any cuts.

As can be seen in the figure, the bending part is largely curved and bent, so it will be necessary to open it in a sufficiently heated state.
In FIG. 6, this uncut cut is developed to form a single band.
Since the bending point that becomes the crease tends to be bumpy, some grinding, hot pressing, and forging processes are required to level it and flatten it. The band 11 '''' is completed.

By doing so, it is possible to cut out a vertically laminated band corresponding to several times the length of the cut notch from the horizontally laminated block that has been cut into pieces by uncut cutting and development thereof.

Here, it is not a method of cutting a raw material into a round cut from the board | plates of the horizontal lamination joined by a pile, but the method of producing a long horizontal laminated band by the cut which does not cut a raw material is described.

FIG. 7 shows horizontally laminated plates joined by flat stacking. In this plate, for example, a non-cutting cut is inserted from one direction with a width slightly larger than b which is the wear height of the blade, and the cut is shown open.
The 12 line is a measure of uncut notches from both directions.

FIG. 8 shows that 14 can be formed by opening the cut in a heated state.
This is further stretched, hot pressed and slightly processed to produce a flat flat laminate of length 14 ′.

The long strip of the transverse lamination can be treated in the same manner as the sectioned cross-laminated piece of Example 2 of FIG. 4 and FIG. 5 and paragraph 20 to paragraph 23 of the previous paragraph.

Specifically, although it is a horizontal lamination, a band of a vertical lamination having a cross section that crosses the layers can be formed by a method of making a cut at an angle for cutting the cross section of the horizontal lamination.

As a result, it is possible to make a long strip of longitudinal lamination as in 11 ′ ′ ′ ′ of FIG. 6, from which a free-length cutting edge can be cut out.
FIG. 9 shows how a long transverse laminated board is produced from a flat transverse laminated board by non-cutting incisions.

In the case of a normal knife, the size of b is about 7mm to 10mm, the thickness of c is about 2mm at the maximum, c is 0.2mm for a razor, etc. You can also

In FIG. 10, a plate of horizontal lamination: above, and a figure in which a spiral-shaped slit similar to a mosquito coil incense is arranged: middle,
Front view of spiral cut line: Shown below, but it is subtle whether or not this spiral mold is included in the non-cut cut line. It is possible to make a vertical laminated board of a scale.

When looking at the cross-sections of the longitudinally stacked plates described so far, there is a difference in the way the different layers are made, and up to this point, the layers have almost the same angle except at the folding point, The cuts in the score line vary in angle.

When manufacturing sintered alloys such as high-speed steel, not only by laminating and shaping metal plates, it is set in advance so that layers of different quality are stacked, and the blades are cut from sintered and compressed materials. By cutting out, it is possible to form a cutting edge that makes a difference in hardness between the cutting edges.

A sintered material provided with a hard and soft layer can be obtained by a method in which a sintered material made of powder is preliminarily compressed and shaped into a plate shape, and two or more types of thin plates are stacked and compressed and heated.

The cutting edge member made by this manufacturing method becomes a serrated cutting edge, the hard part is made of a softer material, it takes less time to sharpen, it can be sharpened immediately, and it always has a sharp blade There are merits that can be done.

When manufactured by the methods of Examples 2 and 3, an elongated vertically laminated metal plate can be formed, which can be applied to various uses.

Here again,
Claim 1
(1) Prepare a laminated metal plate made by laminating, welding, and bonding metal materials of high hardness and low hardness or chemical resistance.
(2) Cut the laminated metal plate into round pieces,
(3) Cut so as to cross the layer on the cut surface, cut out the plate material,
(4) Shape the hard metal so that it repeatedly appears on the edge of the plate.
(5) A manufacturing method for shaping a blade or a tool using the plate material as a blade member.

Claim 2
(1) Prepare a laminated metal plate made by laminating, welding, and bonding metal materials of high hardness and low hardness or chemical resistance.
(2) Cut the laminated metal plate into round slices,
(3) From the alternate positions of the side faces of the laminated metal plate that has been cut in a circle, make a non-cutting cut or make a spiral cutting,
(4) A laminated plate member in an integrally connected state is manufactured by opening the cut portion,
(5) Shape so that a hard and soft metal repeatedly appears on the part that becomes the cutting edge of the plate,
(6) A manufacturing method of shaping a blade or a tool using a part of the laminated plate member as a blade member.

Claim 3
(1) Prepare a laminated metal plate made by laminating, welding, and bonding metal materials of high hardness and low hardness or chemical resistance.
(2) From the alternate positions on both sides of the laminated metal plate, make a non-cutting cut or make a spiral cutting,
(4) A laminated plate member in an integrally connected state is manufactured by opening the cut portion,
(5) Shaping so that hard and soft metal appears repeatedly in the part which becomes the cutting edge of the plate material,
(6) A manufacturing method of shaping a blade and a tool by using a part of the laminated plate member as a blade edge member.

Claim 4
It is a cutting edge member or a blade, a tool, which is manufactured by the manufacturing method according to claim 1 or 2 and shaped so that a soft metal repeatedly appears on the cutting edge.

Claims (4)

(1) Prepare a laminated metal plate made by laminating, welding, and bonding metal materials of high hardness and low hardness or chemical resistance.
(2) The laminated metal plate is not cut, but is cut into the middle of the lamination, that is, a non-cutting cut which is to be left behind and peeled back,
(3) Producing a laminated plate member in which a rigid or soft metal or a metal having a strong and weak chemical resistance repeatedly appears in a portion connected integrally by opening the cut portion. And
(4) A manufacturing method of shaping a blade and a tool by using a part of the laminated plate member as a blade edge member. (1) Prepare a laminated metal plate made by laminating, welding, and bonding metal materials of high hardness and low hardness or chemical resistance.
(2) Cut the laminated metal plate into round slices,
(3) Of the laminated metal plate that has been cut in the round,
Make an uncut notch so as to cross the stack from one or both directions,
Or make a spiral cut,
Or cut along a line that combines curves and straight lines as appropriate to cross the stack.
Get in,
(4) Manufacture of laminated plate members that are connected together by opening the notch, and the metal that becomes hard and soft or has strong and weak chemical resistance appears repeatedly in the part that becomes the cutting edge of the plate material. And
(5) A manufacturing method of shaping a blade and a tool by using a part of the laminated plate member as a blade edge member.

(1) Prepare a laminated metal plate made by laminating, welding, and bonding metal materials of high hardness and low hardness or chemical resistance.
(2) For the laminated metal plate,
Make a non-cutting cut so that it crosses the stack, alternating from one direction or both directions,
(3) By opening the notches, the lamination is horizontal, and a laminated plate member in a state of being integrally connected is manufactured,
(4) Next, of the laminated metal plate,
Make a non-cutting cut so as to cross the stack from one direction or both directions,
Or make a spiral cut,
Or cut along a line that combines curves and straight lines as appropriate to cross the stack.
Get in,
(5) Manufacture of laminated plate members that are connected together by opening the notch, and the metal that becomes hard and soft or has strong and weak chemical resistance appears repeatedly on the edge of the plate. And
(6) A manufacturing method of shaping a blade and a tool by using a part of the laminated plate member as a blade edge member. It is made by the method shown in the claim 1, or the claim 2, or the claim 3,
It is shaped so that a metal that is hard or soft or has strong and weak chemical resistance appears repeatedly on the cutting edge,
When you open the cut part such as folded or spiral state,
The width of either hard or soft metal at one point on the cutting edge or at a certain cycle
Includes parts that differ from others,
The cutting edge is hard and soft or has strong chemical resistance, characterized by the use of a long, vertically laminated band.
A cutting edge member, blade or tool shaped so that the strength of the metal repeatedly appears.