JPS6284921A - Wire cut electric discharge machining method - Google Patents

Abstract

PURPOSE:To enable a work to be easily taken out after it is machined, by filling a machining groove clearance with soluble filling agent before auxiliary plates are adhesively mounted to the work thereafter adhesively mounting the auxiliary plates. CONSTITUTION:Before auxiliary plates 4 are glued to a work 2, machining groove 3 is filled with water paste 6 serving as a soluble filling agent, thereafter the auxiliary plates 4, applying an adhesive agent 5, are adhesively attached to the work 2 in such a manner as to step over the machining groove 3. And for cut off machining by a wire electrode after the adhesive agent 5 if dried, a machined surface is cleaned by machining fluid washing the water pate 6 with which the groove 3 is filled. In this way, since the adhesive agent for the auxiliary plates to be adhesively mounted is prevented from flowing into the machining groove when the work is cut off, the work can be easily taken out after it is machined, while the work can be cut off well preventing discoloring of a machined surface because it it not influenced by the adhesive agent.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a wire-cut electric discharge machining method, particularly to an improvement in a method for cutting off a cut object from a workpiece.

[Conventional technology]

FIG. 2 shows the conventional wire cut electric discharge machining method. It is an explanatory diagram showing a method of cutting off a workpiece, in which (1) is a wire electrode of a wire-cut electrical discharge machining device, (2) is a workpiece, and (3) is a workpiece machined by a wire electrode (1). The processing groove (4) is formed halfway through the workpiece (2), and the auxiliary plate (4) is bonded to the workpiece (2) with an adhesive (5) so as to straddle the processing @ (3).

Next, the machining operation will be explained. First, wire electrode (1
) to form a processing groove (3) halfway in the workpiece (2). Auxiliary plates (4a), (4b), (
Paste 4c) on the workpiece (2) with adhesive (5) so as to straddle the machining groove (3), slide it onto the machining plate (3), and then apply electrical discharge machining using the wire electrode (1). , had been cut off.

[Problem that the invention seeks to solve]

Since the conventional electric discharge machining method is configured as described above, the adhesive (5) flows into the machining groove (3) and is also bonded to the machining groove (3), so that cutting after cutting is not possible. Part (7) ft When cutting, it is difficult to peel off, and since the adhesive (5) remains on the processed surface of the cut object (7), the part with the adhesive (5) may discolor or the adhesive may deteriorate. agent (5)
There was a problem in that it took extra time and effort to peel off the material.

This invention was made in order to solve the above-mentioned problems, and the adhesive (5) does not flow into the processing surface, and the cut object can be easily taken out after processing.
The purpose is to obtain a wire cut electrical discharge machining method.

[Means for solving problems]

The wire-cut electric discharge machining method according to the present invention is such that the auxiliary plate is bonded to the workpiece after a soluble filler is packed into the gap between the machining grooves.

[Effect]

The wire cant electric discharge machining method in this invention is as follows.

Before using the adhesive, the grooves are filled with a soluble filler, thereby preventing the adhesive from flowing into the grooves.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is an explanatory diagram of an embodiment of the present invention seen from a cross section.
In Figure 1, before attaching the auxiliary plate (4), the processed @ (3) is filled with a water-based sheet (6) which is a soluble filler, and then the adhesive (5) is applied to the auxiliary plate (4). and adhere to the workpiece (2) so as to straddle the processing groove (3).

Since the cutting process begins after the adhesive (5) dries, the water-based glue (6) packed into the u (3) is washed away by the process liquid and the process surface is cleaned.

In the above example, the processing@(3) was filled with water-based glue, but the filler is not limited to water-based glue as long as it is a water-soluble substance.
Further, if the processing fluid is oil, an oily substance may be used.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to cut a punched workpiece.

When removing the adhesive, the adhesive that adheres the auxiliary plate does not flow into the processed groove, so the workpiece can be easily removed after processing, and the processed surface is not affected by the adhesive, so there is no possibility of discoloration. This has the effect of allowing the blanked workpiece to be cut off without any problems.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a partial cross section of a workpiece according to the present invention;
FIG. 2 is an explanatory diagram of a conventional method for cutting off a workpiece. In the figure, (1) is a wire electrode, (2) is a punched product,
(3) is a processed groove, (4) is an auxiliary plate, (5) is an adhesive, (
6) indicates a soluble filler. In each figure, the same reference numerals indicate the same or corresponding parts. Agent: Patent Attorney Masaru Sato, 1st Class, 2nd Staff

Claims (1)

[Claims] In a wire cut electrical discharge machining method that generates electrical discharge between a conductive wire and a workpiece to cut the workpiece,
In the middle of cutting the workpiece, a filler that dissolves in the machining fluid is filled into the machining groove formed by the cutting, and then an auxiliary plate is bonded to the workpiece in a state that straddles the machining groove. A wire-cut electrical discharge machining method characterized in that the workpiece is pasted through a material, and then the remaining portion of the workpiece is cut.