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Diamond coating cutter with microstructural cooling function suitable for titanium alloy processing

A diamond coating and titanium alloy technology, which is applied in metal processing equipment, metal material coating technology, metal processing machinery parts, etc., can solve problems affecting tool life, reduce consumption, improve coating adhesion, and improve cooling effect of effect

Active Publication Date: 2019-08-06
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the CVD diamond coating tool will chemically react with elements such as Fe and Ti at high temperature to form carbides such as FeC and TiC and affect the life of the tool when cutting titanium alloys. The diamond-coated tool with microstructure cooling function processed by titanium alloy can reduce the failure probability of diamond coating by reducing the temperature in the cutting area of ​​the diamond tool and providing a chemical barrier

Method used

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  • Diamond coating cutter with microstructural cooling function suitable for titanium alloy processing
  • Diamond coating cutter with microstructural cooling function suitable for titanium alloy processing
  • Diamond coating cutter with microstructural cooling function suitable for titanium alloy processing

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] Such as Figure 1-5 Shown.

[0027] A diamond-coated tool with micro-structure cooling function suitable for titanium alloy processing. The tool tip and the crescent crater area are prepared with micro-textures, such as figure 1 , 2 As shown, a diamond coating is deposited on the micrograin. The micrograin includes a reservoir, a cooling tank, and a cutting fluid outlet; the reservoir is connected to at least one cooling tank, and the cooling tanks communicate with each other. The outlet is arranged on the front and rear knife surfaces and communicates with the cooling groove; the cooling groove is a bag-shaped pipe structure with a narrow upper and a wide lower part, such as image 3 , 4 As shown. It is prepared using the following steps:

[0028] First, prepare the tool matrix and clean it with an ultrasonic cleaning machine;

[0029] Secondly, prepare diamond po...

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Abstract

The invention relates to a diamond coating cutter with a microstructural cooling function suitable for titanium alloy processing. A laser etching and minuteness electric spark method is utilized for preparing micro lines near a tool nose of the cutter and a crater area. A diamond coating is deposited through chemical vapor deposition (CVD), and edges of micro grooves can capture and adsorb methylduring the deposition process, so that a pipeline system with a bag-shaped opening type wide at the top and narrow at the bottom is formed; a cutting fluid enters a fluid storage tank and flows out from an outlet through a cooling pipeline so as to bring out heat, so that the deep cooling of the cutter is formed, the cutting fluid is prevented from evaporating, the dosage of the cutting fluid is reduced, a cutter cooling effect is improved, and the generation of a thermal stress produced by a base-membrane system is reduced; meanwhile, the cutting fluid enters a cutting area of the cutter so as to form a lubricating film, so that the cutter cutting force is reduced, and meanwhile, an effect on reducing the probability of reacting iron, titanium, alloy and diamond is achieved; and in addition, the grooves form a rooting effect on the diamond coating, so that the adhesive force of the coating is favorably improved.

Description

Technical field [0001] The invention relates to a tool, in particular to a CVD diamond tool, in particular to a diamond coating tool with microstructure cooling function suitable for titanium alloy processing. Background technique [0002] CVD diamond coated tool is a widely used tool, which has significant advantages in processing non-ferrous metals, carbon fibers and some high hardness materials. However, due to the chemical reaction of diamond with Fe, Ti and other elements at high temperatures, FeC and TiC and other carbides are formed , It is easy to cause damage to the diamond coating, so diamond coated tools cannot be widely used in the processing of iron, titanium and alloys. [0003] Secondly, in the cutting process, the amount of cutting fluid is very huge. Regardless of economic cost and environmental protection, it is necessary to optimize the tool structure, improve the utilization efficiency of cutting fluid, and increase the service life of the tool. Summary of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q11/10B23Q11/00C23C16/27B08B3/08B08B3/12
CPCB08B3/08B08B3/12B23Q11/00B23Q11/10C23C16/27
Inventor 张召于守鑫卢文壮陈飞飞田万杉陈蒙张其真
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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