Rotary electrodeposition method and device for producing ring-shaped diamond band saw

Abstract

The present invention provides a rotary electrodeposition method for preparing ring-shaped diamond band saw, wherein the band saw body moves in the electrodeposition solution during the electrodeposition process that metal layers of diamond grits are deposited, coated, and fixed on the cutting edge of the ring-shaped diamond band saw body which is taken as the cathode in the electrodeposition solution trough. The present invention also provides a device for applying the method. The device comprises a frame; a motor and a pressure bearing are disposed on the frame; a flange is disposed on the pressure bearing; the flange is connected with the output shaft of the motor; a bracket is disposed on the flange; a ring-shaped grit-harvesting groove is disposed on the bracket and the band saw is placed in the groove; the grit-harvesting groove is placed in a electrodeposition trough and an anode is disposed in the trough; the DC power supply contains one positive and one negative conducting wire, wherein the positive conducting wire is connected to the anode and the negative conducting wire is introduced into the ring-shaped grit-harvesting groove by a kinematic pair of rotational and stationary electrical contacts. The device and the producing method can deposit a smooth and dense metal coating with uniform thickness on the band saw body, which can firmly hold the diamond particles onthe cutting edge of the band saw body so as to improve the quality of the diamond band saw.

Description

technical field [0001] The invention belongs to the technical field of manufacturing diamond band saws by electrodeposition, and provides a rotary electrodeposition method for manufacturing ring-shaped diamond band saws. The invention also provides a rotary electrodeposition device for manufacturing ring-shaped diamond band saws. Background technique [0002] Silicon crystals for semiconductors and solar cells are expensive and brittle materials, and diamond tools are often used for processing. Ring diamond band saws are an important tool for processing silicon crystal materials. The diamond band saw is formed by fixing a layer of diamond sand by electrodeposition on the cutting edge of the band saw base made of stainless steel. The metal deposited on the edge of the band saw base makes the diamond sand and the band saw base bond together, the firmness of the combination of the diamond sand and the band saw base, that is, the thickness of the metal deposition and the uniform...

AI Technical Summary

Problems solved by technology

In addition, in the prior art, controlling the thickness of the electrodeposited layer is often to control the time of the electrodeposition process according to the operator's experience, and the thickness of the electrodeposited layer is very unstable in production

If the thickness of the electrodeposited layer on the edge of the diamond band saw is small, the diamond sand on the edge is easy to fall off, and the service life of the tool is reduced. However, if the thickness of the electrodeposited metal layer is too large, the diamond grit will be exposed or even buried. The saw blade can no longer be used

Moreover, during the electrodeposition process, some diamond sand will fall into the electrodeposition tank. To recover the scattered diamond sand from the electrodeposition solution, it is necessary to filter the entire tank of the electrodeposition solution, which is very troublesome.

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