Processing Technology of Thin-wall Seamless Tube Parts

Thin-walled seamless tube parts because of its compact structure, light weight, saving materials and other characteristics, in the industrial sector is increasingly widely used. However, due to thin-walled thin-walled seamless tube parts of low strength, poor rigidity, easy to deformation during processing, it is difficult to ensure the accuracy of parts processing, thin-walled parts processing difficult to become a prominent problem. The factors that affect the machining accuracy of thin-walled seamless pipe parts are many, the machine tool, the tool, the workpiece and the workpiece clamping, cutting process cutting force, cutting heat and so will cause the parts processing error. Thin-walled seamless tube parts, processing more difficult, especially the processing of the hole, because of in the cutting process, parts by the role of cutting force, prone to deformation. Resulting in elliptical or middle small, two large "waist" phenomenon. In addition, thin-walled seamless tube parts because of poor heat dissipation during processing, easy to produce thermal deformation, the size and shape error can not meet the requirements of the drawings, so that parts of the shape and error increases, not easy to ensure the quality of parts processing. How to reduce the impact of cutting force on the deformation of the workpiece, so as to fully consider the impact of process problems on the quality of parts processing, the workpiece clamping, tool geometry, cutting the amount of procedures such as the preparation of the test, effectively To overcome the thin-walled parts in the process of deformation, to ensure the processing accuracy.

Characteristics of thin-walled parts: According to the technical requirements of the drawings, the workpiece material using seamless steel tube for processing, the hole and the outer wall of the surface roughness Ra1.6, can be achieved with the turning. But the cylindrical diameter of the hole 0.03 for thin-walled seamless pipe parts in terms of requirements are relatively high, in mass production, the process route is roughly: cutting - heat treatment - car end - car outer - car hole - quality inspection.