Material-saving multi-wire cutting method

A multi-wire cutting and material-saving technology, applied in the field of mechanical processing, can solve the problems of limited processing difficulty of NdFeB magnets, and achieve the effects of saving raw material input, saving cutting waste and reducing costs.

Active Publication Date: 2019-07-23
廊坊京磁精密材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the traditional multi-wire cutting method mainly reduces the material input by reducing the diameter of the cutting wire. However, due to the difficulty in processing NdFeB magnets, it is difficult to further reduce the diameter of the cutting wire when it is reduced to about 0.1mm.

Method used

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  • Material-saving multi-wire cutting method
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  • Material-saving multi-wire cutting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and Embodiment 2

[0047] Below with embodiment 1 and embodiment 2 specify:

Embodiment 1

[0049] The multi-wire cutting machine consists of three sheaves on which several cutting wires arranged in parallel are wound, a working table located below the cutting lines, and a liquid leakage pipe located above the cutting lines.

[0050] Wherein, the surface of each sheave is coated with a polyurethane coating, and V-shaped grooves with two sizes of groove pitches are opened on the polyurethane coating. It is also equipped with driving devices such as guide wheels, swing rods, take-up wheels, and pay-off wheels for the movement of the cutting line.

[0051] The worktable is driven by screw rod and servo device, and can move from bottom to top according to the set cutting speed.

[0052] The liquid suction pump provides power to make the mortar or coolant spray out from the leakage pipe, flow into the leakage box, and then evenly flow to the cutting line through the gap of the leakage box.

[0053] The units of dimensions mentioned below are mm. The size of the multi-wir...

Embodiment 2

[0063] The multi-wire cutting method of embodiment 2 is the same as the multi-wire cutting machine of embodiment 1. The size of the square workpiece is 60*30*42.4 as an example. After cutting, the corresponding size is 60*30*5.05, and 8 pieces are cut. The difference is The reason is that the size of the target after cutting is large and requires a large amount of grinding, so the front and rear target workpieces are 0.2mm higher than the middle target workpiece, while the square workpiece size of the traditional cutting method is 60*30*43.2. It can be seen that Example 2 can save about 1.9% of material.

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Abstract

The invention discloses a material-saving multi-wire cutting method. According to the material-saving multi-wire cutting method, a multi-wire cutting machine is used for cutting a workpiece to be cut,and the multi-wire cutting machine comprises a plurality of parallel cutting wires. The material-saving multi-wire cutting method is characterized by comprising the steps of adjusting the distance between the multiple parallel cutting wires to make the workpiece to be cut be cut into two front and back target workpieces located on the two sides and a middle target workpiece located in the middle,wherein the width of the middle target workpiece is matched with the designed cutting width; the width of the front and back target workpieces is 0.1-0.25 mm greater than the width of the middle target workpiece. Through the material-saving multi-wire cutting method, remaining cut materials cannot be produced on the two sides in the process of cutting the workpiece to be cut, waste of materials is reduced, and the materials are saved.

Description

technical field [0001] The invention relates to the field of machining. More specifically, the present invention relates to a material-saving multi-wire cutting method. Background technique [0002] At present, the multi-wire cutting machine has been widely used in the processing of hard and brittle and precious materials such as optical glass, quartz crystal, semiconductor materials, special ceramics, sapphire, rare metals and alloys. It has the advantages of less material investment, less surface damage, low operating cost, and high processing efficiency. In the past two or three years, it has also been gradually implemented in the magnetic material processing industry. Magnetic materials, especially sintered NdFeB magnetic materials, because they contain precious rare earth elements such as dysprosium, terbium, praseodymium, and neodymium, the cost of raw materials accounts for more than 60% of the total cost, and in the process of processing, the material loss is mostly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28D5/04B28D1/22
CPCB28D1/22B28D5/045
Inventor 张泽清杜凡谢爱成
Owner 廊坊京磁精密材料有限公司
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