JPS6156871A - Manufacture of multi-layer electrodeposited saw edge - Google Patents

Abstract

PURPOSE:To form a base metal in a small thickness while substantially reduce a cutting loss further increase adhesive strength of an abrasive grain, by providing a fine hole in the edge formed part of a saw edge and electrodepositing the abrasive grain to be fixed so as to build it in the base metal of the saw edge. CONSTITUTION:Only a part forming an edge of the base metal 1 of a saw edge, providing fine holes 3 over multiple layers, forms a screen region 2. Next these fine holes 3 or a fine hole part and an edge point part are charged with or mount temporarily an abrasive grain 4 of diamond, cubic crystal boron nitride, fine ceramics, etc. Thereafter, the method, applying electric plating to firmly fix the abrasive grain 4, forms an abrasive grain layer consisting of multiple layers in a part forming the edge.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a method for manufacturing an electrodeposited saw blade, and more specifically, the present invention relates to a method for manufacturing an electrodeposited saw blade, and more particularly, the present invention relates to a method for manufacturing an electrodeposited saw blade, and more particularly, it relates to a method for manufacturing an electrodeposited saw blade, and more particularly, it relates to a method for manufacturing an electrodeposited saw blade, and more particularly, it relates to a method for manufacturing an electrodeposited saw blade, and more particularly, it relates to a method for manufacturing an electrodeposited saw blade. '') fixed to the cutting edge by electroplating.

(Prior Art) Generally, an abrasive grain layer in which abrasive grains such as diamond are fixed by electroplating is formed on the machined surface of the electrodeposition tool, such as the cutting edge, to improve the sharpness of the tool.

However, there are limits to the thickness of the abrasive grain layer formed on the machined surface and the adhesive strength of the abrasive grains, and there are still problems in terms of tool life. In particular, in the case of electrodeposited saw blades, the abrasive grain layer is a single layer and has to be formed on the bottom and side surfaces of the 1-alloy, which not only causes problems in terms of tool life but also increases the thickness of the saw blade width. There was a problem of decreased yield due to this.

(Object of the Invention) The present invention solves the problems of the prior art, enables a significant extension of the tool life, and also achieves high crystal yield and high efficiency electric power that can significantly reduce cutting loss of the workpiece. The object is to provide a new and original method of manufacturing saw blades.

(Structure of the Invention) In order to achieve the above object, the present inventor has conducted extensive research into a technique for forming an abrasive grain layer on the blade edge component of the base metal of an electrodeposited saw blade without increasing the thickness of the blade edge. As a result, we created pores in the part of the base metal that forms the cutting edge,
We discovered that the abrasive grains can be electrodeposited and fixed in the pores, so to speak, by incorporating the abrasive grains into the base metal, and furthermore, we have created a multi-layered abrasive grain layer by distributing the abrasive grain-embedded pores in a layered manner. By forming a new abrasive grain layer, a new abrasive layer can be exposed continuously without impairing the function of the base metal, thereby significantly extending the tool life.
Furthermore, we learned that high-yield processing is possible.
This is where the present invention is made.

That is, the gist of the present invention is to form a screen area by providing pores in multiple layers only in the part of the saw blade base metal where the blade is formed, and to form a screen area in the pores or in the pores and the blade edge part. By filling or temporarily attaching 1□i abrasive grains such as diamond, cubic boron nitride, fine ceramics, etc., and then applying electroplating to firmly fix the abrasive grains, a multilayer coating is applied to the part where the blade will be formed. A method for manufacturing a multilayer electrodeposited saw blade, characterized by forming an abrasive grain layer.

It is in.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on embodiments and with reference to the drawings.

As mentioned above, in conventional electrodeposited saw blades, a layer of abrasive grains is locally formed only on the bottom and sides of the tip of the blade, which is made of a thin plate material such as spring steel or stainless steel. Ta.

This is based on the result that the base metal and the abrasive grain layer are treated as separate entities, such as the base metal and the abrasive grain layer.

In contrast, in the present invention, the base metal and the abrasive grain layer, more specifically, the blade forming part of the alloy and the abrasive grains are regarded as one dimensionally, and the base metal thickness of the blade forming part is The basic idea is to take in abrasive grains within a certain range and incorporate the abrasive grains into one base metal. In this way, the blade-forming portion has both the blade-edge holding function by the base metal and the cutting function by the abrasive grains, and the blade-forming portion can be made wider and thinner.

As a means of realizing this, the present invention first provides a screen area by providing pores in the blade-forming portion of the alloy, and then applies abrasive grains to the pores by electric current. #It is fixed. The proportion of pores, that is, the porosity, is designed to give the aperture part of the base metal a degree of wear that provides appropriate strength, and is determined by, for example, the material of the cutting material and the material and type of the saw blade. , but it is preferably 20% or more and 70% or less, although it varies greatly depending on the application.

Since the abrasive grains are fixed in the holes of this structure by electrodeposition, the adhesive strength of the abrasive grains is high, and the sharpness of the electrodeposited saw blade is good.In addition, the abrasive grains are built into the base metal. Therefore, as the platinum becomes thinner, cutting loss is reduced as much as possible, making it possible to achieve even higher yields.

Furthermore, in the present invention, a large number of pores with built-in abrasive grains are distributed, and moreover, they are arranged in a multilayered manner in consideration of the cutting surface. This results in a configuration as if a large number of grindstones 11F7J were continuously formed. When arranging the pores, the pores are arranged in a 1,100-to-11 pattern, and the lower layer (
Before the pores of the first layer are completely worn out by cutting, the next Pn
It is preferable to design so that at least 20% of the pores appear and contribute to cutting. In addition, in the case of an arrangement in which the pores of the initial layer are not exposed on the blade edge surface, a separate abrasive grain layer is fixed by electrodeposition on the blade edge part. In this case, cutting is first performed by the abrasive layer fixed to the cutting edge, and when the abrasive layer and base metal at the cutting edge have progressed to wear, the first P!
J pore part grinding #1. The layers continue to contribute to cutting, and as a result, cutting continues throughout the entire layer of the abrasive grains embedded in the pores from the beginning of cutting, resulting in the effect of continuously maintaining the cutting effect for a long time. be. By arranging the arrangement as described above, while cutting continues in the lower abrasive grain layer, one
The next abrasive grain layer is exposed and begins to contribute to the cutting process, so new abrasive grain layers can be continuously applied to the cutting process, greatly extending the tool life. Example 6 Next, an example of the present invention will be described. In this example, an electrodeposited saw blade product is obtained through the following steps, but it goes without saying that the present invention can also be applied to the production of other saw blades.

■For the base metal, use a thin plate material with rigidity such as stainless steel or spring steel, and the thickness of the plate is approximately 0.05 to 0.5 m.
Prepare m. As shown in Figure 1, this base metal 1
Among them, only the part 2 of the desired width that forms the blade has a diameter of 10μ that matches the size of the abrasive grains used and the purpose of use of the saw blade.
A pore 3 of approximately 1 mm in diameter is made on the entire surface by a method such as pressing or photo etching, and several layers of screen area 2 are formed.
form.

In this case, the shape of the pores 3 can be any shape such as a circle or a polygon such as a hexagon,
Of course, it is also possible to combine pores of irregular sizes. Since the shape of the pores does not have a particularly large effect on the cutting effect, it is preferable to select the most economical method.

That is, various methods such as pressing, laser, photo-etching, and electrobeam can be considered as specific methods for creating pores, but it is necessary to determine the most economical method depending on the thickness of the metal and the desired pore diameter. There is. As shown in Fig. 2, the pores can be arranged in the part that forms the cutting edge.In this case, the pores may be approximately semicircular, and this allows for firm fixation of the abrasive grains and This has the economical effect of omitting the work of separately electrodepositing an abrasive layer on the cutting edge.

(2) Next, if necessary, perform Hough polishing on the front surface of the platinum or the screen area and the cutting edge.

(2) After that, abrasive grains are embedded in the pores 3 in the screen area using a suitable jig.

At that time, when inserting a large number of fine abrasive grains into each pore, it is recommended to perform chemical plating after embedding the abrasive grains or temporarily attach the abrasive grains using a conductive adhesive. desirable. On the other hand, when the diameter of the pores and the diameter of the abrasive grain are equal to each other, or when using abrasive grains coated with a metal in advance, the above-mentioned tacking process is not necessarily performed.

(2) In the case of platinum having a screen area 2 in which the pores 3 are not arranged at the cutting edge, as shown in FIG.

Following step (1) above, abrasive grains are temporarily applied to the blade edge. As the tacking method, any of the electrolytic plating method, chemical plating method, and adhesion method using conductive adhesive may be used, and by this, a tacking saw blade as shown in Fig. 3 is produced (note that , in the figure, the shaded area 4 indicates abrasive grains). However, if the screen area 2 of one base metal is as shown in Fig. 2,
Since the blade edge with exposed abrasive grains has already been formed in step (1) above, this step (2) may be omitted.6) In areas where electroplating is not required, apply resist before or after embedding the abrasive grains. Apply ink.

dry.

■After performing normal plating pre-treatments such as pickling, water washing, and degreasing, surface activation treatment is performed. Taking nickel plating as an example, the following strike plating is performed. In addition, if the base metal is stainless steel.

Perform this process thoroughly.

Bath composition: Hydrochloric acid 100-200. / Q Nickel chloride 200~: 300g/fl Electrolysis conditions: Temperature
Temperature: Room temperature cathode current density = 3 to 20 A/d Bo time: 1 to 10 minutes ■ Immediately perform acid washing, but if there is a waiting period before starting the next process of fixed plating, especially in the case of stainless steel. It is immersed in dilute acid to prevent oxidation, and immediately before plating, it is washed with water before proceeding to the next step.

Electroplating for abrasive grain fixation is performed under zero-order conditions.

Bath composition: Nickel sulfate 240-320 g/Q Nickel chloride 45-90 i/Q Boric acid 30-80 G/Q.

Brightener Appropriate amount Electrolysis conditions: Temperature 30-70°Cp H1,5
~4.5 Cathode current density 1~12 A/drr? Electrolysis time: Approximately 20 to 90 minutes (this varies greatly depending on the particle size of the abrasive grains used, but the electrodeposition should be completed before the abrasive grains are completely covered with the electrodeposition layer) ■The base metal that has undergone electrodeposition is Immediately wash with water and dry, especially if there is a risk of hydrogen embrittlement due to electrodeposition forming an interlayer.
Heat treatment is performed at 200° C. for about 4 hours to perform dehydrogenation.

[Phase] Completely remove resist ink.

In cases where endless machining is required, such as with zero-band stationary blades,
If metal-coated abrasive grains are used, especially if finishing dressing is required, the necessary post-processing is carried out to obtain the saw blade product.

(Effects of the Invention) As is clear from the detailed description above, according to the present invention, pores are provided in the blade forming portion of the saw blade to fix the abrasive grains by electrodeposition, and the abrasive grains are fixed to the saw blade base. Since the abrasive grains are built into the pores, it is possible to reduce the thickness of the base metal and significantly reduce cutting loss, thereby achieving a significantly higher yield.Furthermore, since the abrasive grains are fixed in the pores by electrodeposition, the abrasive grains are It has high adhesive strength and sharpness. Furthermore, since the pores containing abrasive grains are distributed in the blade forming area of the saw blade to form a screen area, it is possible to widen the blade forming area, and in addition, the pores can be arranged in layers within this wide area. Since it forms an abrasive grain layer consisting of multiple layers, the abrasive grain layer with sufficient cutting function can be sequentially exposed as the cutting process is performed, while ensuring the saw blade holding function of one metal. It is possible to provide a highly efficient electroplated saw blade that has been significantly extended, and can process expensive materials such as silicon single crystal, optical glass, and non-ferrous fully bent materials extremely efficiently and with high yields. This is extremely remarkable.

[Brief explanation of the drawing]

The figure is a schematic explanatory diagram showing the manufacture of a band saw blade as an example of a saw blade according to the present invention, and FIG. 1 is a partially enlarged plan view of a saw blade base metal having a screen area with a five-layer arrangement of pores. , Fig. 2 is a partially enlarged plan view of only the screen area of the saw blade base metal in which the bottom layer is formed by partially exposing the pores at the cutting edge in the case of Fig. 1, and Fig. 3 is the same as shown in Fig. 1. Figure 4 is a partially enlarged plan view showing a saw blade product in which abrasive grains are electrolytically fixed to the pores and cutting edge of the saw blade base shown in Figure 2. FIG. 2 is a partially enlarged plan view of only the screen area of the electrolytically fixed saw blade product. DESCRIPTION OF SYMBOLS 1... Band saw blade base metal, 2... Screen area, 3... Pore, 4... Abrasive grain (hatched area).

Claims (1)

[Claims] Only in the part of the saw blade base metal that forms the blade, pores are provided over multiple layers to form a screen area, and diamond, cubic boron nitride, fine ceramics, etc. A multilayer electrode characterized in that a layer of abrasive grains consisting of multiple layers is formed in a part where a blade is to be formed by filling or temporarily attaching abrasive grains and then electroplating the abrasive grains to firmly fix the abrasive grains. Manufacturing method for saw blades.