加工钛合金 用什么材质的机夹刀片

2025-02-21 15:52:36
推荐回答(2个)
回答1:

我推荐你使用CBN刀具,
1)对于钛合金钛合金具有高的强度?质量比,更好的强度、韧性、延展性.另外,钛合金还具有较好抗氧化性与耐腐蚀性,并且在高温下还能保持良好的强度.这些性能优点使得钛合金在航空航天、汽车、化工和医疗器械等领域得到广泛应用[1].然而,钛合金除了上述优点外,其难加工性是生产中较为棘手的难题.钛合金的难加工性主要体现在以下几点[2,3]:(1)热导率低.钛合金低的热导率,使得加工过程产生大量的切削热,且大部分残留在刀具内,使刀具迅速磨损[4],在极个别的情况下,切削热甚至会引起火花;(2)加工硬化严重.在切削过程中,钛合金零件表面会产生加工硬化现象,影响抗疲劳强度和零件几何尺寸精度;(3)弹性模量低.在重载切削加工中,钛合金的低弹性模量,会导致变形与振动;(4)化学活性高.钛合金的化学活性很高,在高温下,钛具有与刀具材料发生化学反应的趋向,会加速刀具磨损[4],缩短刀具寿命T.钛合金的难加工性直接影响到它的加工效率.因此,通过选择合理的刀具材料改善钛合金的切削加工性能是提高钛合金加工效率的有效途径.在钛合金的切削加工中,切削刀具材料多数选用硬质合金,但是由于寿命较短,使得切削速度常在50m?min以下.由于立方氮化硼(cubicboronnitride,CBN)刀具材料具有高的硬度、耐磨性,很高的热稳定性,优良的化学稳定性,较好的导热性及较低的摩擦因数,这些性能特点正是加工钛合金刀具材料所应该具备的,研究人员和工程技术人员已开始尝试用CBN刀具来切削钛合金.Nabhani发现采用PCBN刀具切削钛合金TA48时具有较低的磨损率,可获得较好的加工表面质量[5].Z.A.Zoya和R.Krishnamurthy研究了CBN刀具高速切削钛合金时的切削加工性,证明钛合金的切削加工性主要受切削热的影响,刀—屑接触面及刀—工接触面摩擦热的增加会导致刀具磨损加剧,CBN刀具的磨损原因取决于钛合金与刀具材料的性能、切削介质等[6].E.O.Ezugwu等人研究了不同CBN刀具在不同的冷却液条件下切削钛合金TC4时的切削加工性[7].Bhaumik等人用CBN复合刀片切削钛合金TC4,X射线分析表明刀具月牙洼区域存在钛元素,粘结层也包含钛的一些化合物,如硼化钛、氮化钛[8].钛合金TC4是工业上应用最多的一类钛合金,针对PCBN刀具加工钛合金TC4的切削加工性,分别在切削力、表面质量、刀具损坏形态和损坏机理以及刀具寿命等方面进行实验研究和理论分析,为钛合金加工提供合理的切削参数,
2)对于高温合金的话,整体CBN刀具是最理想的刀具了,我们现在有很多事客户都在用效果非常好,
个人资料有我的联系方式,可以的话一个沟通

回答2:

t5主要看你磨刀的手法如何,和车工三要素的配合,主要是角度,和三要素

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