Because of the special properties of titanium alloy, titanium alloy thin wall parts processing will appear in the process of chip, chip, chip, so it is more difficult to prevent the distortion of processing parts. The parts processing process is divided into rough machining (rough turning), stress relief aging, semi-finishing and finishing and cutting off fixed length. Among them, the stress relief aging process is mainly to release the cutting stress involved in the rough machining process and avoid to bring it to the subsequent process.
Semi-finishing and finishing will determine the dimensions, surface shapes, mutual positions and surface roughness of the machined parts.
The design of clamping scheme: rough machining because there is a chuck, the rigidity of the workpiece is better, the use of lathe self-centering chuck, clamping force, can prevent in the process of large cutting force loose parts, chuck is not cut off. Semi-finishing, finishing clamping force to be small, to prevent clamping deformation, the two steps in the process need to use soft clawing, and considering that the process of the workpiece has formed a thin-wall structure, in the parts of the internal hole to increase the core disc installed in the workpiece hole, to increase the rigidity of the whole process system. Because the speed of rough machining is not large, so the vibration can be avoided. In addition, the role of the core plate is mainly to enhance the parts of the chuck part rigid, the actual processing process according to the parts with the hole to complete the size of the centering plate, so the requirements are not very strict. Soft claw in order to good welding with low carbon steel, pad because of the existence of the chuck, local rigidity is better than the formation of thin-wall rigidity, so the amount of deformation will be small, will not affect the shape and size of the workpiece.
Indeed, a lot of knowledge is generated in the process of communication. The purpose of holding a live broadcast of jig man is to trigger everyone's thinking collision and improve their understanding of processing.
