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Single-layer high-precision brazed superabrasive grinding wheel and manufacturing method thereof

A super-hard abrasive, high-precision technology, applied in the field of grinding wheels, can solve problems such as the adverse effect of grinding wheel manufacturing accuracy, the increase in the degree of deformation of the brazing material layer, and the reduction of grinding wheel manufacturing accuracy, so as to achieve good controllability, stability, and manufacturing accuracy. High, simple structure

Active Publication Date: 2018-11-23
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in order to obtain the chemical metallurgical bond between the superabrasive (diamond / cubic boron nitride) and the solder, the brazing temperature is usually above 900°C, and such a high brazing temperature will inevitably cause the grinding wheel matrix ( Metal material) produces thermal deformation, which leads to a significant reduction in the manufacturing accuracy of the grinding wheel and is difficult to effectively control, which has also become the fundamental reason restricting the popularization and application of this type of advanced grinding wheel in the field of precision and ultra-precision machining
[0004] In addition, if the patent number is: CN201610867682.5, the Chinese patent titled "New Single-layer Superabrasive Forming Grinding Wheel and Its Manufacturing Method" has a significant effect on the manufacture of small-sized, simple-structured grinding wheels, but In the face of large-sized and complex-structured grinding wheels, due to the large volume of the solder layer, the degree of deformation of the solder layer itself will increase with the increase in volume and size, which will adversely affect the manufacturing accuracy of the grinding wheel. Improve

Method used

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  • Single-layer high-precision brazed superabrasive grinding wheel and manufacturing method thereof
  • Single-layer high-precision brazed superabrasive grinding wheel and manufacturing method thereof
  • Single-layer high-precision brazed superabrasive grinding wheel and manufacturing method thereof

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Embodiment 1

[0039] Such as figure 1 and figure 2 As shown, a single-layer high-precision brazed superabrasive grinding wheel includes a metal base 1, a plurality of metal inserts 2 bonded to the outer peripheral surface of the metal base 1, and several metal inserts 2 are sequentially spliced ​​to form a ring structure. The outer peripheral surface of the metal insert 2 is brazed with an abrasive layer 3, and the abrasive layer can be diamond or cubic boron nitride material.

[0040] Compared with the traditional grinding wheel, the grinding wheel base in this patent is divided into a metal base 1 and a metal insert 2, wherein the metal insert 2 has good brazing processability due to its small size, while the metal base 1 and the metal insert 2 The combined structure can provide a structural basis for accuracy correction after brazing (abrasive layer surface accuracy and abrasive contour), which can solve the problem of accuracy reduction caused by material deformation during the overal...

Embodiment 2

[0042] A method for manufacturing the single-layer high-precision brazing superabrasive grinding wheel, it comprises the following steps:

[0043] 1) Manufacture a certain number of female modules 4, each female module 4 is spliced ​​to form a ring-shaped female mold structure, and the female modules are made of graphite;

[0044] 2), processing the inner surface, such as Figure 4 As shown, the female module 4 is installed and fixed on a ferrule fixture with an annular inner cavity to form the female mold structure. The fixing process can be bonded by melting and re-solidifying the paraffin wax. Process the inner surface 6, which is opposite to the working surface of the grinding wheel. At the same time, on the structure of the female mold, an equivalent reference surface 5 is processed corresponding to the inner surface. The equivalent reference surface 5 is the same as the inner surface. A circular surface with the same axis as the shape surface 6;

[0045] Such as imag...

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Abstract

The invention provides a single-layer high-precision brazed superabrasive grinding wheel and a manufacturing method thereof. The grinding wheel comprises a metallic basic body, and multiple metallic embedded blocks adhere to the peripheral face of the metallic basic body and are sequentially spliced to form an annular structure; abrasive layers are brazed on the peripheral faces of all the metallic embedded blocks respectively. The manufacturing method includes the steps that 1, female die blocks are manufactured; 2, an inner shape face is machined; 3, abrasive particles are fixed through electroplating or with high-temperature adhesive; 4, the metallic embedded blocks are manufactured; 5, high-temperature brazing is performed; 6, criterion alignment is performed; 7, a metallic matrix is bonded; 8, the metallic matrix is machined; 9, a female die and an electroplating layer or a high-temperature glue layer are removed. With the method, influences on thermal deformation of the basic body of the grinding wheel can be effectively reduced during high-temperature brazing, then the manufacturing precision of the grinding wheel is ensured, and the single-layer high-precision brazed superabrasive grinding wheel is easily applied and popularized in the field of precision machining.

Description

technical field [0001] The invention relates to a grinding wheel, in particular to a single-layer high-precision brazing superabrasive grinding wheel and a manufacturing method of the grinding wheel. Background technique [0002] The single-layer brazed superabrasive grinding wheel has been widely used in the field of high-efficiency and heavy-duty grinding processing due to its advantages such as strong abrasive grain holding force, large chip space on the working surface, sharp grinding wheel and long service life. [0003] However, in order to obtain the chemical metallurgical bond between the superabrasive (diamond / cubic boron nitride) and the solder, the brazing temperature is usually above 900°C, and such a high brazing temperature will inevitably cause the grinding wheel matrix ( Metal materials) produce thermal deformation, which leads to a significant reduction in the manufacturing accuracy of the grinding wheel and is difficult to effectively control, which has als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D5/06B24D18/00
CPCB24D5/06B24D18/0072B24D18/009
Inventor 赫青山崔仲鸣王星周宝仓王彦林
Owner HENAN UNIVERSITY OF TECHNOLOGY
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