Efficient precise grinding process for titanium alloy material

A technology for precision grinding and titanium alloys, which is applied in the field of high-efficiency precision grinding technology, and can solve the problems of easy deformation of parts, low production efficiency of titanium alloy parts, and easy adhesion to grinding wheels.

Inactive Publication Date: 2007-11-07
HUNAN UNIV
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Problems solved by technology

[0004] 2. The grinding surface quality of titanium alloy materials is not easy to control
Because the titanium alloy itself has the characteristics of stickiness, toughness and high chemical activity, it is easy to adhere to the grinding wheel during the grinding process, resulting in increased grinding force and increased grinding temperature.
The high grinding temperature makes the chemical reaction between titanium alloy and abrasive grains, abrasive grains and air easy to occur, and 70%-80% of the high temperature in the grinding area is not easy to be exported to the workpiece, and the tension generated during the grinding process Stress and surface pollution layer make the parts prone to

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  • Efficient precise grinding process for titanium alloy material
  • Efficient precise grinding process for titanium alloy material
  • Efficient precise grinding process for titanium alloy material

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Embodiment Construction

[0058] TC4 titanium alloy was selected as the grinding material, and the grinding process was carried out using the device shown in FIG. 10 . The main shaft power of the test bench is 40KW, and the maximum speed is 20000r / min; the SBS4500 dynamic balancing system is used to dynamically balance the grinding wheel in real time, and the unbalance amount is <0.1μm; the drive motor power of the workbench is 5KW; the pressure range of the cooling system is 0-25Mpa.

[0059] Ultra-high-speed resin bonded diamond grinding wheel and vitrified bonded CBN grinding wheel are used respectively, and their parameters are shown in the aforementioned Table 1;

[0060] The grinding wheel is trimmed, and the trimming parameters are shown in the aforementioned Table 2;

[0061] Commercially available SY-1 water-based grinding fluid is used, and the supply pressure is 8Mpa;

[0062] Grinding process conditions:

[0063] a. Abrasion rate per unit wheel width: 3.3mm 3 / mm·s-180mm 3 / mm s;

[00...

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Abstract

The efficient precise grinding process of titanium alloy workpiece in a conventional apparatus includes the following steps: trimming super high speed resin adhered diamond grinding wheel or ceramic bonder adhered CBN grinding wheel to outer jiggling within 5 micron and sharpening; performing real-time dynamic balancing of the grinding wheel with a dynamic balancing system to unbalance amount within 0.1 micron; and grinding titanium alloy workpiece in the conditions of water-base cooling liquid supplying pressure of 7-9 MPa, grinding wheel grinding rate of 3.3-180 cu mm/mm.s, grinding wheel linear speed of 60-150 m/s, grinding depth of 0.1-1.8 mm and workpiece feeding speed of 1-6 m/min. The present invention has high titanium alloy workpiece grinding efficiency, low cost and high grinding quality.

Description

technical field [0001] The invention relates to a high-efficiency precision grinding process for titanium alloy materials. Background technique [0002] Due to its high specific strength, excellent corrosion resistance, non-magnetism, good heat resistance, and high fatigue strength, titanium alloys have been widely used in aviation, aerospace, navigation, petroleum, chemical and other industrial sectors. With the continuous expansion of the application range of titanium alloy materials, the types of titanium mechanical equipment and parts are also increasing, and people's requirements for processing accuracy and processing efficiency are also getting higher and higher. If titanium alloy materials are processed by ordinary grinding methods, the efficiency is low and the cost is high, and increasing the amount of grinding will often cause burns and cracks on the surface of the workpiece, and the processing quality is difficult to guarantee. Titanium alloy materials have the f...

Claims

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Application Information

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IPC IPC(8): B24B1/00
Inventor 盛晓敏唐昆余剑武宓海青尚振涛
Owner HUNAN UNIV
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