ಟೈಟಾನಿಯಂ ಮಿಶ್ರಲೋಹದ ರಚನಾತ್ಮಕ ಭಾಗಗಳ ಮಿಲ್ಲಿಂಗ್ ವಿಧಾನ

TC4 ನ ಹೆಚ್ಚಿನ ವೇಗದ ಮಿಲ್ಲಿಂಗ್ ಮಾಡಿದಾಗ, Gc.2, ಮತ್ತು ಶುದ್ಧ ಟೈಟಾನಿಯಂ ಅವಿಭಾಜ್ಯ ರಚನೆಗಳು, ಡೌನ್-ಮಿಲ್ಲಿಂಗ್ ಅನ್ನು ಸಾಮಾನ್ಯವಾಗಿ ಬಳಸಲಾಗುತ್ತದೆ. ಉತ್ಪತ್ತಿಯಾಗುವ ಶಾಖವನ್ನು ಕಡಿಮೆ ಮಾಡಲು ಮತ್ತು ರೇಡಿಯಲ್ ಬಲವನ್ನು ಕಡಿಮೆ ಮಾಡಲು ಉಪಕರಣವು ಟೈಟಾನಿಯಂ ವರ್ಕ್‌ಪೀಸ್‌ಗೆ ನಿಧಾನವಾಗಿ ಕತ್ತರಿಸುತ್ತದೆ.
ಟೈಟಾನಿಯಂ ಮಿಶ್ರಲೋಹ TC4 ಅನ್ನು ಮಿಲ್ಲಿಂಗ್ ಮಾಡುವಾಗ (Ti-6Al-4V), ಅಸಮಪಾರ್ಶ್ವದ ಡೌನ್ ಮಿಲ್ಲಿಂಗ್ ಅನ್ನು ಹೆಚ್ಚಾಗಿ ಬಳಸಲಾಗುತ್ತದೆ, ಆದ್ದರಿಂದ ಕಟ್ಟರ್ ಹಲ್ಲಿನ ಮುಂಭಾಗದ ತುದಿಯು ಮೊದಲು ವರ್ಕ್‌ಪೀಸ್ ಅನ್ನು ಸಂಪರ್ಕಿಸುತ್ತದೆ. When the milling cutter teeth are separated, the chips are very thin and are not easy to stick to the cutting edge. The opposite is true for up milling, which tends to stick chips. When the cutter tooth cuts in again, the chip is broken, causing the cutter material to peel off and chipping. ಎರಡನೆಯದಾಗಿ, maintain a stable cutting load as much as possible, because changes in load will cause tool deflection, thereby reducing machining accuracy and surface quality, and shortening tool life. ಅಂತಿಮವಾಗಿ, when machining titanium parts with large removal margins (such as groove machining of large titanium parts), layered milling, small depth of cut, and medium feed are generally used. When machining the inner cavity of titanium, when the tool enters the corner, adopt trochoidal milling, which can avoid the sudden increase of cutting force, otherwise the heat generated will destroy the performance of the titanium material.

ಪ್ರಸ್ತುತ, in the high-speed machining of the aviation manufacturing industry, the milling speed of titanium alloy can reach more than 90m/min, and the cutting speed of aluminum alloy can reach 1500~6000m/min. When processing aluminum alloy in this speed range, the milling temperature is higher than the corresponding temperature at which the built-up edge disappears, which effectively avoids the generation of built-up edge and improves the quality of the processed surface. ಅದೇ ಸಮಯದಲ್ಲಿ, the higher the silicon content of the aluminum alloy, the lower the milling speed should be. When processing high silicon aluminum alloy, the cutting speed is 300～1500m/min, the processing effect is better.

The commonly used cutting solutions are: high cutting speed, medium feed and small depth of cut. ಆದಾಗ್ಯೂ, in actual processing, it is not that the higher the cutting speed, the better the effect. It is necessary to comprehensively consider the workpiece, cutting tool and equipment to formulate a reasonable processing plan. ಉದಾಹರಣೆಗೆ, there are two boss holes in the cavity of an aircraft wing part (ಟೈಟಾನಿಯಂ ಮಿಶ್ರಲೋಹ) produced by an aerospace manufacturing company. ಚಿತ್ರದಲ್ಲಿ ತೋರಿಸಿರುವಂತೆ 1. Adopting cemented carbide end mills, cutting speed v=1300m/min, feed rate fz=0.5mm/z, cutting depth ap=3～5mm, reciprocating tool passes over the boss hole to process, the processing cost is too high. After process improvement, high-speed steel tools are used in the A area, the cutting speed v=800m/min, the large cutting depth ap=10mm, and the position of the boss hole after rough machining. Replacing cemented carbide tools for high-speed milling in area B not only ensures machining efficiency and surface accuracy, but also reduces costs.

ಟೈಟಾನಿಯಂ ಮಿಶ್ರಲೋಹದ ರಚನಾತ್ಮಕ ಭಾಗಗಳ ಮಿಲ್ಲಿಂಗ್