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冶金专家解说钛合金:

这些材料的低导热性不允许加工过程中产生的热量被断屑带走,

钛合金的高加工硬化倾向也可能导致高切削力和高切削温度,从而导致切削刃在切削深度处的破损。

300M

300M和Aermet 100也是用于起落架的主要材料。它们具有很强的机械性能(拉伸强度大于1500Mpa,而钛为1200Mpa),优异的损伤容限和抗裂性。

Alpha-Beta(α-ß)钛合金

这些合金同时具有α和ß相,并同时含有a和ß稳定剂。

这个组群中最简单和最受欢迎的合金是Ti6Al4V,主要用于航空航天工业。 这类合金易于成型,并具有较高的室温强度和适度的高温强度。 这些合金的性能可以通过热处理来改变。

Beta(ß)钛合金

Beta(ß)合金包含过渡金属,例如V,Nb,Ta和Mo,可稳定ß相。 商业ß合金主要包括Ti11.5Mo6Zr4.5Sn,Ti15V3Cr3Al3Sn和Ti5553。 Beta合金易于热处理,通常可焊接且具有高强度。 在固溶处理条件下,具有出色的可预期可成型性。 但是,ß合金易于延性-脆性转变,因此不适合低温应用。 Beta合金在板材,厚型材,紧固件和弹簧应用中具有良好的组合或性能。

挑战:

起落架系统包括前起落架和主起落架。

根据飞机的大小,起落架系统可能非常大。

由于这些组件的尺寸,长悬伸的刀柄与大直径刀具的组合会挑战整体加工的刚性与稳定性。

对刀具解决方案的要求:

  • 刀具刚性和稳定性
  • 长悬伸刀具

刀具类型

螺旋方肩铣削

 

HARVI™ Ultra 8X
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