Slender shaft machining skills

1. Choose a suitable clamping method (1) Double-center clamping method. (2) One clamping and one top clamping method. (3) Double knife cutting method. (4) The following tool holder and center holder are used. (5) The slender shaft is turned by the reverse cutting method. 2. Choose a reasonable tool angle. In order to reduce the bending deformation caused by turning the slender shaft, the cutting force generated during turning is required to be as small as possible. In the geometric angle of the tool, the rake angle, the entering angle and the edge inclination angle are necessary for cutting. Force has the greatest impact. Slender shaft turning tools must ensure the following requirements: small cutting force, reduced radial component force, low cutting temperature, sharp edge, smooth chip removal, and long tool life. 3. Reasonably control the cutting amount. Whether the choice of cutting amount is reasonable, the cutting force generated during the cutting process and the amount of cutting heat are different. Therefore, the deformation caused by turning a slender shaft is also different. The principle of selecting the cutting amount of the slender shaft for rough turning and semi-rough turning is to reduce the radial cutting component as much as possible and reduce the cutting heat. When turning a slender shaft, generally when the aspect ratio and material toughness are large, a smaller cutting amount is selected, that is, more passes and a small depth of cut are used to reduce vibration and increase rigidity.