Problems Existing in the Processing of Titanium Alloy Fasteners

Corrosion problem. When installing titanium alloy fasteners, it is easy to form a certain gap, so that there will be surface paint inflow between metal air strikes, resulting in the fasteners being vulnerable to clothing during the production process. During subsequent use, the connection tightness will be affected. The main reason for the corrosion resistance of titanium alloy materials is that there is a protective oxide film on the surface. This film can effectively protect the titanium alloy inside the material from being oxidized, thereby improving the corrosion resistance of the titanium alloy material.

Problems in turning. Titanium alloy materials are difficult to process materials and have poor thermal conductivity. The heat generated during machining does not diffuse through the part and machine structure, but is concentrated in the cutting area, where there is a strong notch sensitivity, which can lead to chipping and deformation; and dull cutting edges can generate even higher heat And further reduce the tool life. The high temperature generated during cutting will also cause the workpiece to harden continuously, which will affect the surface integrity of the titanium and may lead to inaccurate geometric accuracy of the part and severely reduce its fatigue strength. Generally speaking, in In reasonable machining conditions, the turning process is not difficult. If it is for mass production, continuous cutting, and cutting with a relatively large amount of metal removal, carbide tools need to be used; while forming cutting or cutting requires steel tools. Make reasonable adjustments and use cermet cutters if necessary.

Precision issues in machining Titanium Flat Washers. The precision requirements for machinery will be higher. In mechanical production, because the tool is in a state of working wear during each production process, and it is calibrated according to the program, the density of titanium alloy fasteners is higher, and the tool is easily worn during the machining process. Under the state, the tool is still processed according to the program, and it is easy to cause the precision of the compact part to be affected during the processing. If the precision of the fasteners is not strictly controlled within the error range during the entire processing process, the titanium alloy and other materials cannot be tightly connected during the use process, which will have a certain impact on the subsequent use and improve The precision of titanium alloy fasteners in the machining production process is a major problem that needs to be overcome in the production process. For example, the fastener process product shown in the figure is a product made in a high-precision production workshop, and the connection performance of this product is better.