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钛合金在放电诱导和助燃氧气的共同作用下能通过自身燃烧反应被蚀除,随着助燃氧气压力增大,钛合金蚀除速度增大,但是当气体压力增大到一定程度时会发生爆炸,影响材料成形精度。针对钛合金放电诱导烧蚀高效车削加工提出了基于可控燃爆机理的新加工理念,即通过定量高压复合低压进气系统以实现钛合金在加工过程中处于可控燃爆状态,以增加钛合金蚀除速度。并与只通入低压氧气的加工方式进行对比试验。结果表明:基于可控燃爆机理的车削加工,在保证加工精度的前提下,通过间歇定量高压助燃氧气实现钛合金燃爆的可控高效加工,其蚀除速度远远高于只通入低压氧气的放电诱导烧蚀车削。
Titanium alloy can be eroded by self-combustion reaction under the combined action of discharge-induced and combustion-supporting oxygen. With the increase of combustion-supporting oxygen pressure, the titanium alloy corrosion rate increases, but when the gas pressure increases to a certain extent, an explosion occurs , Affect the material forming accuracy. A new machining concept based on controllable combustion and explosion mechanism is put forward for high efficiency turning machining induced by titanium alloy discharge. In this paper, a new processing concept based on controllable combustion and explosion mechanism is proposed, Alloy erosion rate. And with only access to low-pressure oxygen processing comparison test. The results show that the controllable high efficiency machining of titanium alloy can be achieved by intermittently quantifying high pressure combustion oxygen with the premise of ensuring the machining accuracy. The removal rate is far higher than that of the low pressure Oxygen discharge induces ablation turning.