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Study on Dry Grinding Titanium Alloys Based on Multi-layer Brazing Super Abrasive Grinding Wheel

Author: ZhouHeng
Tutor: FuYuCan
School: Nanjing University of Aeronautics and Astronautics
Course: Mechanical Manufacturing and Automation
Keywords: Titanium alloy Grinding and polishing Diamond Cubic boron nitride (CBN) Multilayer brazing
CLC: TG580.6
Type: Master's thesis
Year: 2010
Downloads: 77
Quote: 1
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Abstract


Titanium alloy, high strength , heat resistance, corrosion resistance , widely used as a structural material in the aerospace industry . Grinding and polishing is an important step in the aviation titanium alloy structural parts machining titanium alloy with low thermal conductivity , modulus of elasticity , high chemical activity , grinding and polishing the workpiece surface is easy to burn . This paper in order to reduce the heat source strength as a starting point , increases the grinding wheel chip space and the increase of the two solid lubricant , pursuant to which the development of the two new grinding wheel and the evaluation of the performance of the grinding and polishing of titanium alloys . Successfully prepared multilayer integrated liquid phase sintering and brazing process advantages of brazed diamond and cubic boron nitride (CBN) wheel . The strength of the grinding wheel meet the use requirements , the uniform distribution of the voids in the structure of the diamond grindstone , CBN Wheel in the graphite free form uniform distribution , chemical metallurgical bonding is achieved between the binding agent and abrasive . Multilayer brazed diamond and CBN grinding wheel grinding and polishing TC4 titanium alloy test results show that : the grinding wheel in grinding and polishing titanium alloy can be obtained Ra 0.8μm grinding and polishing surface , machined surface burns , and processing efficiency and service life are much higher than grinding and polishing tools .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Grinding and grinding machine > General issues > Grinding process
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