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工件结构及材质特点这种铝模外径φ1300mm、厚170mm,壁厚最薄处25mm,内壁及底面由三种不同半径(最大R650mm)的内球面及一段斜面、一段平面组成。其形状较复杂,切削时易产生弹性振动,使内球面较难达到质量要求。铝模材料系铸造铝合金,性软、硬度低、塑性小、熔点低、粘性大,切削时铝屑容易粘附在刀尖上,影响工件表面光洁度。工具结构及操作方法工件2用螺栓紧固在花盘或安装板1上。刀杆支
Workpiece structure and material characteristics The aluminum die diameter φ1300mm, thickness 170mm, the thinnest wall at 25mm, the inner wall and the bottom of the three different radius (maximum R650mm) of the inner sphere and a section of bevel, a plane composition. Its shape is more complicated, it is easy to produce elastic vibration when cutting, making it difficult for the inner sphere to meet the quality requirements. Aluminum mold material casting aluminum alloy, soft, low hardness, low plasticity, low melting point, viscosity, cutting easy to adhere to the tip of aluminum, affecting the surface finish of the workpiece. Tool structure and operation method Workpiece 2 is bolted to the faceplate or mounting plate 1. Arbor support