本文選題：深孔加工　切入點：槍鉆　出處：《中北大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：深孔加工技術(shù)誕生于槍炮的生產(chǎn)制造過程當(dāng)中,一直以來被封閉在軍工領(lǐng)域,隨著世界經(jīng)濟的發(fā)展,開始向民用領(lǐng)域發(fā)展,并廣泛應(yīng)用于各個領(lǐng)域。鈦合金由于具有強度高、耐熱性好、耐腐蝕性強等優(yōu)點被世界許多國家當(dāng)作最重要的戰(zhàn)略金屬之一。但是鈦合金屬于典型的難加工材料,在鈦合金的深孔鉆削過程中容易產(chǎn)生摩擦力大、切削溫度高、刀具磨損嚴(yán)重、排屑困難等對加工不利的現(xiàn)象。本文以金屬切削原理為理論基礎(chǔ),借助Deform-3D有限元模擬軟件,對槍鉆鉆削TC4鈦合金的機理進(jìn)行仿真研究。首先,分析了槍鉆加工系統(tǒng)的基本結(jié)構(gòu)和工作原理,并建立了槍鉆的力學(xué)模型,以及鈦合金的材料模型和有限元切削模型。然后,設(shè)計了槍鉆鉆削TC4鈦合金的仿真實驗,利用Deform-3D有限元軟件對所設(shè)計的仿真實驗進(jìn)行了模擬,得到了不同鉆削參數(shù)下切削力、扭矩的曲線圖,以及切削溫度、刀具磨損量的分布云圖。最后,通過對比模擬結(jié)果,得到了進(jìn)給量和切削速度兩個切削用量與軸向力、扭矩、刀具磨損量的關(guān)系,并總結(jié)了其規(guī)律。本文研究成果對鈦合金深孔鉆削的實驗研究有重要的理論意義和參考價值。
[Abstract]:Deep hole processing technology was born in the production and manufacture of guns and guns. It has always been closed in the field of military industry. With the development of the world economy, it began to develop to the civilian field and was widely used in various fields. Titanium alloy has high strength. The advantages of good heat resistance and strong corrosion resistance are regarded as one of the most important strategic metals in many countries in the world. However, titanium alloy is a typical refractory material, and it is easy to produce high friction and high cutting temperature in the deep hole drilling process of titanium alloy. Based on the theory of metal cutting and Deform-3D finite element simulation software, the mechanism of gun drilling and drilling TC4 titanium alloy is simulated. The basic structure and working principle of the gun drilling system are analyzed, and the mechanical model of the gun drill, the material model of titanium alloy and the finite element cutting model are established. Then, the simulation experiment of gun drilling for TC4 titanium alloy is designed. The simulation experiments are simulated by Deform-3D software, and the curves of cutting force, torque, cutting temperature and tool wear are obtained under different drilling parameters. Finally, the simulation results are compared. The relationship between feed rate and cutting speed and axial force, torque and tool wear is obtained, and its rule is summarized. The research results in this paper have important theoretical significance and reference value for the experimental study of deep hole drilling of titanium alloy.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TG52

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