The invention discloses an integrated ultrasonic cutting and impact machining method for aluminum honeycomb, which has the following steps: fixing the aluminum honeycomb to be treated on the fixture of the machine tool, installing the ultrasonic vibration device on the main shaft of the machine tool, installing a circular blade with a specific lower end surface micro-pattern on the ultrasonic vibration device, and measuring and adjusting the circular disc. The end face of the knife runs out; the path of the aluminum honeycomb is determined according to the required shape of the honeycomb; the ultrasonic vibration device is started to make the circular blade vibrate, the spindle of the machine tool is started to make the circular blade revolve, and the aluminum honeycomb is processed according to the path of the cutting tool. Compared with the present high-speed milling method, the cutting force is obviously reduced, the hole lattice deformation of the aluminum honeycomb workpiece processed is smaller, the machining defects such as burrs and crushing are obviously reduced, and the surface flatness is high. The aluminum honeycomb surface with specific surface morphology and widened honeycomb wall width can be obtained by ultrasonic cutting according to the desired surface shape, which is beneficial to the later honeycomb bonding.
【技术实现步骤摘要】
一种铝蜂窝的超声切削与冲击一体化加工方法
本专利技术涉及一种加工方法,具体涉及一种铝蜂窝的超声切削与冲击一体化加工方法。
技术介绍
铝蜂窝夹层结构件是制造卫星整流罩,飞机的舱门、地板等部件的重要零件,在航空航天领域应用广泛。制作蜂窝夹层结构件首先需要对铝蜂窝进行加工,使其达到所设计的曲面形状;再将内侧带有胶膜的复合材料蒙皮或铝合金板蒙皮贴合在蜂窝芯材料上,在一定温度下使胶膜融化,让胶液均匀地与铝蜂窝的孔格端面和侧壁接触黏合,最后胶液固化,粘接完成。铝蜂窝的面形精度和微观形貌会影响粘接质量,进而影响整个铝蜂窝夹层结构件的性能。由于铝蜂窝是一种多孔薄壁结构零件,表面具有非连续性,且壁厚仅有0.03mm~0.1mm,这种多孔薄壁结构在孔格方向上具有较高的刚度,但在垂直于蜂窝孔格的方向(本文中简称横向)上的刚度较弱,导致现有加工方法对铝蜂窝进行加工十分困难。目前一般采用数控机床高速铣削加工铝蜂窝曲面,由于铝蜂窝横向刚度弱,在切削力作用下极易出现让刀变形,蜂窝孔格压溃、蜂窝壁撕裂、蜂窝壁间的粘接面开裂,加工表面形状精度较差;同时高速铣削所加工出的表面有较多的毛刺、毛边等,这 ...
【技术保护点】
1.一种铝蜂窝的超声切削与冲击一体化加工方法,其特征在于具有如下步骤:S1、将待处理铝蜂窝固定在机床夹具上,将超声振动装置安装到机床主轴上,将圆片刀安装到超声振动装置上,测量圆片刀下刀面的端面跳动,使圆片刀下刀面的端面跳动满足要求,其中,圆片刀的纵截面呈等腰梯形状;S2、根据所需的铝蜂窝面形确定走刀路径,且所述圆片刀的刀具轴线始终垂直于所述走刀路径;S3、启动超声振动装置使圆片刀开始振动,启动机床主轴使圆片刀回转,按走刀路径对待处理铝蜂窝进行加工,获得具有所需的铝蜂窝面形的铝蜂窝。
【技术特征摘要】
1.一种铝蜂窝的超声切削与冲击一体化加工方法,其特征在于具有如下步骤:S1、将待处理铝蜂窝固定在机床夹具上,将超声振动装置安装到机床主轴上,将圆片刀安装到超声振动装置上,测量圆片刀下刀面的端面跳动,使圆片刀下刀面的端面跳动满足要求,其中,圆片刀的纵截面呈等腰梯形状;S2、根据所需的铝蜂窝面形确定走刀路径,且所述圆片刀的刀具轴线始终垂直于所述走刀路径;S3、启动超声振动装置使圆片刀开始振动,启动机床主轴使圆片刀回转,按走刀路径对待处理铝蜂窝进行加工,获得具有所需的铝蜂窝面形的铝蜂窝。2.根据权利要求1所述的方法,其特征在于:所述步骤S1中,所述圆片刀与所述超声振动装置通过螺纹连接,所述圆片刀下刀面的端面具有微细花纹。3.根据权利要求1所述的方法,其特征在于:所...
【专利技术属性】
技术研发人员:康仁科,董志刚,王毅丹,冯柏仁,朱祥龙,孙健淞,
申请(专利权)人:大连理工大学,
类型:发明
国别省市:辽宁,21
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