JPS6389265A - Cutting method for brittle metal plate laminated substance - Google Patents

Abstract

PURPOSE:To increase cutting efficiency by placing joint-cut plates on both sides of a laminated substance in the laminated direction and fastening them with two-row fastening type vice leaving some interval and then cutting the interval together with the joint-cut plates by means of high speed disc grindstone equipped with a cooling water feeding device. CONSTITUTION:A laminated substance 1 made of brittle metal plate is caught by joint-cut plates on both sides in the laminated direction. And it is fastened together with joint-cut plates by a two-row fastening type vice 3 leaving some interval 4 and the laminated substance 1 is cut at the interval 4 together with joint-cut plates 2 by a cutting grindstone 6. At the time of this cutting, the grindstone 6 is cooled by cooling water from a cooling water feeding device 7, so that the temperature rising of the laminated substance 1 is restrained to low level. Accordingly the cutting can be made into high efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a method for cutting a laminate of brittle metal plates such as amorphous magnetic plates.

[Prior art and its problems]

Conventionally, laser processing using a laser beam has been used as a cutting method for amorphous alloy plates such as amorphous magnetic plates; however, this method requires a long cutting time due to the slow cutting speed. However, there were disadvantages such as distortion easily occurring on the cut surface due to the influence of heat generated during processing, and welding deposits remaining on the cut surface. There are other methods such as wire cut electric discharge machining, but this also has the disadvantage of slow cutting speed. [Objective of the Invention] This invention was made in view of the above-mentioned drawbacks of the conventional methods, and the cutting speed is fast and the cutting time is short. An object of the present invention is to provide a method for cutting a brittle metal plate laminate that has little adverse effect on the cut portion.

[Key points of the invention]

According to the present invention, the above object is achieved by attaching co-cut plates on both sides of a laminated body of metal plates in the laminating direction, tightening them at intervals with a two-row tightening vise, and tightening the interval parts with a high This is achieved by a method in which both the cutting plates are cut using a speed grindstone cutting device. According to this method, since the cutting plate is tightened with a two-row clamping vise, the cutting part of the laminate is also tightened uniformly and becomes a rigid body, making it easier to cut. Since the cutting is carried out by a cutting wheel that is fed while receiving the cutting, the temperature of the cutting part is relatively low, so that the properties of the cutting part are not adversely affected.

[Embodiments of the invention]

FIGS. 1 and 2 are explanatory diagrams showing a method and apparatus for carrying out the invention.

A laminated body 1 of metal plates, which are brittle in nature, is brought into contact with co-cutting plates 2 on both sides in the stacking direction, and is then tightened with a two-row tightening vise 3 at intervals of 4. The cutting whetstone 6 of the whetstone cutting device 5 is applied and sent in the direction of the large arrow to cut the stacked gold plate 1 together with the co-cutting plate 2. During this cutting, the cutting whetstone 6 is cooled by the cooling water injection device 7.

In this device, the gap 4, which is the cutting point of the metal laminate 1, is tightened with a two-row tightening vise 3 via the cutting plates 2 that are in contact with both sides of the laminate 1 in the stacking direction, so that it is not a rigid body. 9.Easy to cut.

Furthermore, since the cutting wheel 6 is cooled by cooling water, the temperature rise at the cutting location is relatively low.Also, since the cutting device 5 is at high speed, the working time is short.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, a high-speed grindstone cutting device with a cooling water injection device is provided in which a laminated body of brittle metal plates is sandwiched and tightened through two co-cutting plates to provide rigidity. Cutting is easy and the working time is shortened as it is possible to cut with multiple sheets.Also, since it is possible to cut multiple sheets by sandwiching them, the time required to cut each sheet is short and an efficient cutting method is obtained.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a method and apparatus for carrying out the invention, and FIG. 2 is a front view of FIG. 1.

Claims (1)

[Claims] 1) A method of cutting a laminated body of metal plates which are brittle in nature, in which cutting plates are brought into contact with both sides of the laminated body in the stacking direction, tightened with a two-row clamping vise at intervals, and the spaced parts are cooled. A method for cutting a brittle metal plate laminate, characterized in that the co-cutting plate is also cut using a high-speed grindstone cutting device equipped with a water injection device.