Efficient processing technique studies titanium alloy

In the rapid development of technology of high speed of small Wei of Zheng of factory of CNC Machining of plane of boat industry Xi'an, high-powered cutting, make plane workmanship level reached unprecedented height, the efficient, accurate, low cost that its process data in the boat aviation accident such as titanium alloy takes important place in treatment. Titanium alloy is efficient cutting technology is technology of a whole, need advanced machine tool, cutting tool not only, and the engineering technology that still needs to be covered suitably to it, be like optimized cutting parameter, reasonable knife / the support of the condition of machining complex technology such as industry data matched stack, effective cooling and lubricant technology. At present technology of high speed, high-powered cutting is Euramerican hair the research heat that amounts to industrial state home and main development direction, american Rand company ever was in the report of estimation of military plan cost 2001, the high-powered cutting technology that waits for titanium alloy clearly difficult treatment material regards modern plane structure as one of production core technologies. This studies the efficient cutting that processes data in the boat aviation accident such as titanium alloy domain, at present domestic and international already waited for a respect to have much research from mechanism of craft of medium of machine tool, cutting tool, cutting, cutting and cutting. Machine tool of high speed, high-powered cutting reachs the research and development of cutting tool, make the aviation such as titanium alloy difficult the efficient cutting treatment that processes data becomes a possibility. But to titanium alloy aviation accident of this one typical boat processes data, because cutting tool wears away to rise and increase of speed quickly as cutting,the mainest difficult point of high speed, high-powered cutting is, cause treatment cost efficiency of tall, treatment and n are low, affect spare parts quality and treatment efficiency badly. Be aimed at this one difficult problem, domestic and international scholar had begun a lot of significant research and analytic work, on one hand do one's best is broken through somewhat in respect of cutting speed limit; Additional, the application that returns the application from new-style cutting tool, new-style cooling and lubricant technology, cutting tool wears away mechanism analysis, cutting is out of shape with cut bits to form parameter of mechanism, cutting to optimize wait for a respect to have the research such as experiment of corresponding high speed cutting and numeric imitate, offerred a few new-style cutting technologies that are aimed at titanium alloy material. The field researchs in the experiment of cutting speed and cutting means, kitagawa used cutting tool of K10 hard alloy to undertake milling (31.

4 ～ 628 M/min) and intermittent / successive turning (30 ～ 300 M/min) comparative experiment, speed of the cutting when milling can be as high as 628 M/min, and 200m/min cannot exceed however when successive turning, when interrupted cutting before knife area is the largest the temperature when temperature compares successive cutting is low about 15% . This says palpability is in process of high speed milling, wait for a reason as a result of the existence of the refrigeration of interval of cutting of tooth spiccato temperature rise, blame and helix angle, make high speed milling easier than high speed turning implementation. Applying material of new-style cutting tool to research a field, main application is compound cutting tool of coating hard alloy, super- cutting tool of fine grain hard alloy and new-style exceed material of strong cutting tool to improve treatment efficiency. In new-style if use,exceed respect of strong cutting tool get together brilliant diamond (PCD) cutting tool, get together nitrogen of brilliant cubic metre changes boron (PCBN) cutting tool, and without bond cubic metre nitrogen changes boron (BCBN) alloy of titanium of milling of cutting tool high speed, cutting speed can amount to 200m/min above. But easy damaged, cost is high when material of these new-style cutting tool are processing difficult treatment data. Using structure of new-style cutting tool to research a field, in the boat aviation accident such as titanium alloy treatment material cutting is machined when, because cutting tool wears away to wait quickly to bring about generation cutting flutter extremely easily with cutting muscularity, cause cutting tool damaged and spare parts out of tolerance then. Use change the structure of new-style cutting tool such as milling cutter of helix angle milling cutter, face of the knife before amlposition is undee is OK partial level restrains milling flutter, but its workmanship is complex. In addition, think to optimizing angle of cutting tool geometry to still be paid no attention to in order to increase the research of side of performance of cutting tool cutting, be necessary to explore anti-friction of new-style cutting tool to fight grind a technology, if use technology of texture of cutting tool surface,wait. Afore-mentioned a lot of research, thrust moved the boat aviation accident such as titanium alloy to machine the development of processing technique of material high speed, high-powered cutting, but integrated domestic and international already some research results, still many science and technical issue need study deep further: ① is necessary to machine medium heat to titanium alloy cutting - the research that force coupling phenomenon has system, development. ② machines medium heat to titanium alloy cutting - force coupling action is right of cutting tool of all kinds wear away configuration and wear away the influence of mechanism still lacks necessary theory and experiment support. ③ because the complexity of metallic cutting process, concerned cutting knife / bits, knife / the attrition of labour contact area wears away the problem still is the crucial problem that domain of metallic cutting treatment solves hard up to now. ④ optimizes different cutting speed paragraph the matched stack that reachs the titanium alloy material below different cutting means and cutting tool material, optimize angle of geometry of blade of cutting tool cutting and cutting parameter, and develop anti-friction of new-style cutting tool to fight grind a technology to wait, with lengthening cutting tool life is mixed improve cutting efficiency, it is current titanium alloy the Chongzhongzhi that efficient cutting treatment studies is heavy. Unit: In author of CNC Machining of plane of boat industry Xi'an: Beautiful of Zheng Xiaowei Yin CNC Milling