Double-layer Hot Wire Coating Process for Diamond Coating of Ladder Composite Tool

A diamond coating and composite cutting tool technology, which is applied in the direction of metal material coating process, coating, gaseous chemical plating, etc., to achieve the effect of increasing density, ensuring growth current, and stably placing

Active Publication Date: 2017-04-19
KEYIZHAN INTELLIGENT EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a diamond coating for stepped composite cutting tools that can adjust the height of the upper and lower heating wires according to the different lengths of the cutting tools to ensure uniform temperature of the sinking bottom surface and the surface quality of the coating. Double layer hot wire coating process

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  • Double-layer Hot Wire Coating Process for Diamond Coating of Ladder Composite Tool
  • Double-layer Hot Wire Coating Process for Diamond Coating of Ladder Composite Tool

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Embodiment Construction

[0025] Such as figure 1 and figure 2 Shown, the double-layer hot wire coating process that is used for step composite tool diamond coating of the present invention comprises the following steps:

[0026] (1) Put the stepped compound tool 1 into the mixed solution of hydrochloric acid and nitric acid for pretreatment by ultrasonic cleaning, so as to ensure that every layer of the drilling part can be cleaned;

[0027] (2) Assemble a double-layer heating wire adjustment mechanism in the reaction chamber;

[0028] (3) Carbonize the hot wire of the double-layer hot wire adjustment mechanism;

[0029] (4) Place the stepped compound tool 1 in the double-layer heating wire adjustment mechanism;

[0030] (5) Carry out nucleation and growth treatment on the surface of the cutter head in the reaction chamber, wherein the pressure during nucleation is -99.6Kpa, the power of the hot wire is maintained at 750-850W, the bias current is 0.8A, and the bias current power is maintained at 4...

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Abstract

The double-layer hot wire coating process for the diamond coating of the stepped composite tool includes the following steps: (1) Put the stepped composite tool in a mixed solution of hydrochloric acid and nitric acid for pretreatment by ultrasonic cleaning to ensure that the drilled part Every level can be cleaned; (2), assemble the double-layer hot wire adjustment mechanism in the reaction chamber; (3), carbonize the hot wire of the double-layer hot wire adjustment mechanism; (4), place the stepped composite tool in the In the double-layer hot wire adjustment mechanism; (5), the surface of the cutter head is nucleated and grown in the reaction chamber. Ensure that the temperature of each part of the cutting edge remains balanced and stable during the diamond coating process, so that each layer can grow a layer of diamond film evenly, which greatly improves the life of the carbide stepped hole tool and greatly saves processing costs. , improving the processing efficiency.

Description

technical field [0001] The invention belongs to the technical field of machining cutting tools, and in particular relates to a double-layer hot wire coating process for diamond coating of stepped composite cutting tools. Background technique [0002] For the tools for machining holes, due to the different shapes, specifications, precision and uses of the holes, the processing methods are also different, which makes there are many types of hole machining tools. Step hole tools are widely used due to their high efficiency. Currently, such tools are basically solid carbide tools. When processing hard and difficult-to-machine materials, ordinary cemented carbide tools tend to wear easily and the production efficiency is low. On the other hand, during the drilling process, due to the wear of cemented carbide tools, the surface roughness of the tool will be high , so that the surface quality of the hole is reduced, resulting in machining errors. At the same time, due to the low ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C16/27C23C16/46
CPCC23C16/271
Inventor 向道辉张玉龙赵重阳马国峰秦强周直昆张磊赵波高国富焦锋童景琳
Owner KEYIZHAN INTELLIGENT EQUIP CO LTD
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