JPH02173924A - Production of t-shaped slider for magnetic head - Google Patents

Abstract

PURPOSE:To easily produce T-shaped sliders with a high productivity without requiring a high-precision mold by cutting one of two plate-shaped bodies into plural rectangular pieces and working the other with plural grooves in the same direction and cutting it in the direction orthogonal to these grooves to obtain plural comb-shaped pieces and adhering rectangular pieces to each comb- shaped piece and cutting this piece in positions between comb teeth. CONSTITUTION:One of two plate-shaped bodies 1a and 1b is cut in plural positions 2a in the same direction to obtain plural rectangular pieces 3, and the other is worked with grooves 4 in the same direction and is cut in plural positions 2b to obtain plural comb-shaped pieces 5, and rectangular pieces 3 are adhered to each comb-shaped piece 5, and an adhered piece 6 is cut in positions 2c between comb teeth of the comb-shaped piece. Consequently, many T-shaped sliders 7 are simultaneously produced. Thus, T-shaped sliders are produced with satisfactory dimension and shape precisions and a high productivity without requiring a mold.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a method of manufacturing a single-shaped slider for a magnetic head.
7. It particularly relates to a method that is inexpensive and can produce a large number of products at the same time.

(Conventional technology) Writing data to recording media such as floppy disks
The magnetic head used for successive recording or erasing is shown in FIG.

As shown in the figure, the main piece of a flat E-shaped composite core a having a recording/reproducing gap and an erasing gap is sandwiched between two abbreviated sliders b, b from both sides. are integrated. A recording/reproducing coil C and an erasing coil d are wound around the legs at both ends of the composite core a, respectively.

However, in a magnetic head with this configuration, there is no problem because the gap forming side end (lower side in the figure) of composite core a is held between sliders b, b, but the leg portions of composite core a are not supported at all. There are problems with strength.

Therefore, the present inventors devised a T-shaped slider f capable of supporting the central leg of the composite core a, as shown in FIG.

These sliders are generally made by loading slider raw materials, such as powders such as potassium titanate and barium titanate, into a mold and applying heat and pressure to firmly bond the raw material powders together. Alternatively, in the case of a T-shaped slider f, a patch plate g shown in FIG. 9(B) is attached to the L-shaped slider shown in FIG. 9(A), as shown in FIG. 9(C). As shown, it was manufactured by adhering it with a resin adhesive.

(Problem to be solved by the invention) However, in the manufacturing method using the above-mentioned mold, ■ slider f
is extremely small and has a complicated shape, ■ If the shape and dimensions of the slider f differ even slightly from the design values, the above-mentioned assembly will be impossible, so high precision is required for the slider adjustment mold. ■These ■ and ■ are more noticeable in the T-shaped slider f, which is often used for automation in magnetic head manufacturing, so advanced technology is required for mold molding, and the mold molding cost becomes high. .

Therefore, if a slider with different dimensions and shapes is required, a high-precision mold that matches these dimensions and shapes must be prepared each time, and the cost required for molding will be enormous. .

Furthermore, even if a high-precision mold is formed, it is extremely difficult to uniformly load raw materials into an extremely small and complex-shaped mold, and to uniformly heat and pressurize the loaded raw materials. Have difficulty. If these become non-uniform, a slider with high strength cannot be obtained, and the slider may be damaged during the manufacturing process of the magnetic head or during use as a magnetic head.

On the other hand, the L-shaped slider h shown in FIGS.
The method of manufacturing the T-shaped slider f by bonding the slider b and the backing plate g with a resin adhesive does not have the above-mentioned problem, but it is difficult to position the extremely small L-shaped slider b and the backing plate g with high precision. It is extremely difficult to adhere the adhesive while maintaining the adhesive, and the workability is poor, resulting in a significant decrease in productivity.

The present invention has been made in view of the above points, and its purpose is to easily manufacture a high-strength single-shaped slider with high productivity without requiring a high-precision mold. An object of the present invention is to provide a method for manufacturing a single-shaped slider for a magnetic head.

(Means for Solving the Problems) In order to solve the above object, in the present invention, one of two plate-shaped bodies is cut at a plurality of places in the same direction to form a plurality of rectangular pieces, and the other is cut in the same direction at a plurality of places. After processing a plurality of grooves, cut them at multiple points in a direction perpendicular to the wave grooves to obtain a plurality of comb-shaped pieces. After gluing each of the rectangular pieces to each of the comb-shaped pieces, each adhesive piece is attached to a comb-shaped side. Cut between each comb blade.

(Function) In the present invention, two plate-shaped bodies prepared from a magnetic head slider material such as potassium titanate or barium titanate are prepared, and one plate is cut in the same direction to form a plurality of rectangular pieces. get. From the other side, a plurality of grooves are first formed in the same direction, and then cut in a direction perpendicular to the grooves to obtain a plurality of comb-shaped pieces.

Then, the plurality of rectangular pieces and the plurality of comb-shaped pieces are each bonded to form a plurality of strong adhesive pieces.

After that, if each adhesive piece is cut between each side of the comb-like piece, it will be 1
A large number of letter-shaped sliders are manufactured at once.

As described above, in the method according to the present invention, a large number of single-shaped sliders, which are advantageous for automation in magnetic head manufacturing, can be simultaneously manufactured using simple techniques such as cutting, grooving, and bonding. Moreover,
In the present invention, each of the above-mentioned operations is performed on a simple rectangular plate-like body, so that the strength of the plate-like body itself is improved.

Furthermore, in the present invention, by appropriately adjusting the cutting interval of the rectangular pieces, the depth and width of the grooves, the groove machining interval, and the cutting interval of the comb-like pieces, single-piece sliders with different sizes and shapes can be manufactured. Ru.

At this time, one-shaped sliders having various dimensions and shapes, such as cutting intervals and groove processing intervals, are manufactured all at once in one plate-shaped body.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, two plate-shaped bodies made of a magnetic head slider material are prepared. At this time, since the shape of the plate-like body is simple, it becomes possible to perform high compression molding, and its strength becomes extremely high.

Then, one plate-like body 1a is cut in the same direction at a plurality of locations 2a at the same intervals as shown in FIG. 1(A), and as shown in FIG.
A plurality of rectangular pieces 3 shown in A) are formed.

On the other hand, as shown in FIG. 1 (■3), the other plate-shaped body 1b has a plurality of grooves 4 having the same width and the same depth at the same intervals in the same direction.
is cut 17, and then cut 12 at a plurality of locations 2b at the same intervals in a direction perpendicular to the groove 4, to form a plurality of comb-like pieces 5 as shown in FIG. 2(B).

Next, the rectangular piece 3 and the comb-shaped piece 5 are bonded together 17 to form an adhesive piece 6, as shown in FIG. The adhesive piece 6 has a height h (the height of the rectangular piece 3 and the comb-like piece 5) and a width W (the sum of the width of the rectangular piece 3 and the width of the comb-like piece 5) according to the dimensions of the composite core to be attached. [7] and the bottom surface 58 of the adhesive piece 6 was polished to a mirror finish.

After that, as shown in FIG. 4(A), attach the adhesive piece 6 to the comb-like piece 5.
is cut at the middle 2c of each comb blade 5b to form a single-shaped slider 7 as shown in FIG. 4(B).

Then, two single-shaped sliders 7 obtained as described above are used as shown in FIG. 5, and the composite core 10 is sandwiched between the two single-shaped sliders 7.7 to integrate them. At this time, the central leg of the composite core 10]. Oa and 1
The comb blades 5b of the letter-shaped slider 7 come into close contact with each other, thereby causing the legs 1. It now supports Oa.

In the above-described embodiment, the two plate-like bodies 1a and 1b were cut at equal intervals, but the present invention is not limited to this, and for example, as shown in FIGS. 1. Cutting/machining is performed at different intervals w1-w4 as shown in FIG. But that's fine.

By doing so, it is possible to obtain single-shaped sliders having a plurality of sizes and shapes at the same time.

(Effects of the Invention) According to the method according to the present invention detailed above, a plurality of single-shaped sliders can be manufactured simultaneously from a large plate, and the manufacturing cost of single-shaped sliders can be significantly reduced. be able to.

In addition, it is possible to manufacture an extremely small single-shaped slider with a complicated shape without using a mold, with extremely good dimensional and shape accuracy, and with high productivity. This makes it even more advantageous.

Furthermore, single-shaped sliders with various sizes and shapes can be manufactured at the same time without using a mold.
Productivity is greatly improved.

Further, since it is easy to manufacture a large plate in a strong manner, the method according to the present invention allows a strong one-shaped slider to be manufactured.

Note that product management can be made extremely easy by storing the product in a warehouse or the like before it is cut into single-shaped sliders.

[Brief explanation of the drawing]

FIGS. 1 to 5 are diagrams showing one embodiment of the method according to the present invention in the order of steps, FIG. 6 is a diagram showing another embodiment of the present invention in order of steps, and FIGS. 7 to 9 1 is a diagram showing a conventional example. 4...Groove 5...Comb-shaped piece 5b...Comb blade 6...Adhesive piece 7...Single-shaped slider

Claims (1)

[Claims] One of the two plate-shaped bodies is cut at multiple places in the same direction to make multiple rectangular pieces, and the other is made into multiple rectangular pieces by cutting multiple grooves in the same direction and then cut at multiple places in the direction perpendicular to the grooves. A T-shaped slider for a magnetic head, characterized in that the rectangular pieces are bonded to each comb-shaped piece, and then each adhesive piece is cut between the comb blades on the comb-shaped side. manufacturing method.