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A processing method for preparing structured grinding wheel by secondary cladding process

A structured and technological technology, applied in metal processing equipment, manufacturing tools, grinding/polishing equipment, etc., can solve problems such as being unable to participate in grinding, affecting the quality of the grinding working layer, and difficult to control the height consistency of abrasive particles. Achieve the effect of improving cutting outflow efficiency, overcoming the limitation of grinding wheel size, and improving holding force

Inactive Publication Date: 2021-08-17
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method effectively solves the problem that the abrasive grains in the mixed powder are deeply buried at the bottom of the bonding layer and cannot participate in grinding, the height consistency of the abrasive grains is difficult to control, and the required bonding temperature between the matrix and the bond and the gap between the abrasive grains and the bond The problem that the required bonding temperature is different and affects the quality of the grinding working layer

Method used

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  • A processing method for preparing structured grinding wheel by secondary cladding process
  • A processing method for preparing structured grinding wheel by secondary cladding process
  • A processing method for preparing structured grinding wheel by secondary cladding process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A processing method for preparing an end-face structured grinding wheel by using a secondary cladding process, the end face forms a metal bonding layer and a structured grinding working layer through a coaxial powder-feeding laser near-net forming process, and the structured grinding working layer It is composed of superhard abrasive grains and metal bond.

[0050] The end face diameter of the end grinding wheel used in this embodiment is 40mm, the length of the handle is 50mm, and the cross-sectional diameter of the handle is 15mm; the superhard abrasive grains are 120-140 mesh CBN abrasive grains, and the metal bond powder is Cu-19Sn -10Ti metal bond, 100-140 mesh atomized spherical powder.

[0051] A method for preparing a structured grinding wheel using a secondary cladding process is as follows:

[0052] S1. Pour the CBN abrasive grains and Cu-19Sn-10Ti metal bond powder into the mixing bottle according to the mass ratio of 1:3 and mix them to obtain unmixed CBN a...

Embodiment 2

[0071] A processing method for preparing an outer circular structured grinding wheel using a secondary cladding process, the outer circular surface forms a metal bonding layer and a structured grinding working layer through a coaxial powder feeding laser near-net forming process, and the structured grinding wheel The cutting layer is composed of superhard abrasive grains and metal bond.

[0072] The diameter of the circumferential grinding wheel used in this embodiment is 40 mm, the width of the grinding working layer is 15 mm, the length of the handle is 40 mm, and the cross-sectional diameter of the handle is 15 mm.

[0073] The superhard abrasive grains are diamond abrasive grains of 270-300 mesh, and the metal bond powder is Ag-28Cu-5Ti metal bond, which is atomized spherical powder of 270-300 mesh.

[0074] A method for preparing a structured grinding wheel using a secondary cladding process is as follows:

[0075] S1. Pour the diamond abrasive grains and Ag-28Cu-5Ti met...

Embodiment 3

[0084] A processing method for preparing an end-face structured grinding wheel by using a secondary cladding process, the end face forms a metal bonding layer and a structured grinding working layer through a coaxial powder-feeding laser near-net forming process, and the structured grinding working layer It is composed of superhard abrasive grains and metal bond.

[0085] The diameter of the end face grinding wheel used in this example is 40 mm, the length of the handle is 50 mm, and the cross-sectional diameter of the handle is 15 mm; the superhard abrasive grains are 170-200 mesh diamond abrasive grains, and the metal bond powder is Ni-Cr Metal binder, atomized spherical powder of 150-200 mesh.

[0086] A method for preparing a structured grinding wheel using a secondary cladding process is as follows:

[0087] S1, according to the mass ratio of 1:2, diamond abrasive grains and Ni-Cr metal bond powder are poured into the mixing bottle and mixed to obtain unmixed diamond abr...

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Abstract

The invention belongs to the technical field of manufacturing superhard abrasive tools, and relates to a processing method for preparing a structured grinding wheel by using a secondary cladding process. A processing method for preparing a structured grinding wheel using a secondary cladding process, in which a metal bonding layer and a structured grinding working layer are sequentially formed on the surface of a grinding wheel substrate through two cladding processes, and both the first and second cladding processes use The coaxial powder feeding laser near-net forming process is completed by feeding metal bond powder and abrasive powder in sequence. The scanning path of the first cladding process is the same as that of the second cladding process. The laser processing power of the cladding process is 50-100W smaller than that of the first cladding process. This method effectively solves the problem that the abrasive grains in the mixed powder are deeply buried at the bottom of the bonding layer and cannot participate in grinding, the height consistency of the abrasive grains is difficult to control, and the required bonding temperature between the matrix and the bond and the gap between the abrasive grains and the bond The required bonding temperature is different and affects the quality of the grinding working layer.

Description

technical field [0001] The invention belongs to the technical field of manufacturing superhard abrasives, and relates to a processing method for preparing a structured grinding wheel using a secondary cladding process, in particular to a structured grinding wheel with metal bond superhard abrasive grains based on laser near-net shaping method of preparation. Background technique [0002] With the rapid development of today's scientific and technological level, the direction of modern machining technology also tends to be higher speed, higher efficiency and higher precision. As a precision processing method, grinding has become an irreplaceable part of the processing industry. In recent years, many hard, brittle and difficult-to-machine materials and plastic difficult-to-machine materials have been widely used in the fields of national defense, energy, and electronics, relying on their advantages of high strength, high hardness, and excellent wear resistance. For these diff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00
Inventor 刘清正于天彪赵绪峰陈辽原张超于涛
Owner NORTHEASTERN UNIV LIAONING
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